Comment recevoir au hasard une couleur de conception de matériau?

Google a ses Color – Guidelines , alors comment recevoir au hasard une couleur? Existe-t-il un moyen de spécifier un numéro de la table et de recevoir une couleur aléatoire hors de toutes les couleurs de la table?

Par exemple getMatColor(100); :

  • Android: comment répéter un service avec AlarmManager toutes les 15 minutes, mais ne fonctionne que de 8h00 à 18h00?
  • Adb.exe introuvable après l'installation d'Android Studio
  • Android: Exemple de code pour utiliser la connexion VPN propre dans Android 4.0 à l'aide de l'API VPNService
  • Comment remplir une liste de manière asynchrone?
  • Pourquoi le sélecteur de périphérique Android d'Eclipse ne s'affiche pas sur mon appareil Android?
  • Comment utiliser Phonegap SoftKeyboard Plugin pour Android?
  • Entrez la description de l'image ici

    EDIT – Résultat: (couleurs d'icône)

    Entrez la description de l'image ici

  • Comment supprimer la boîte de dialogue d'alerte Barre de titre
  • Android Telegram App -> java.lang.UnsatisfiedLinkError: aucune implémentation n'a été trouvée pour void
  • Com.android.ddmlib.InstallException: Impossible d'établir une session réactive-native
  • Comment mettre en surbrillance un TextView ou LinearLayout lorsque vous cliquez dessus?
  • Comment déterminer l'IME actuel dans Android?
  • Sélectionnez un sous-ensemble de caractères dans de nombreuses lignes (sélection de colonne) dans Eclipse / Android Studio
  • 5 Solutions collect form web for “Comment recevoir au hasard une couleur de conception de matériau?”

    Mieux vaut tard que jamais.

    Ma nouvelle réponse si l'objectif réel est d'obtenir une couleur de matériau aléatoire pour un type de couleur.

    Ajoutez le fichier array.xml (à partir de @ 8m47x)

     <?xml version="1.0" encoding="utf-8"?> <resources> <array name="mdcolor_50"> <item name="red_50" type="color">#fde0dc</item> <item name="pink_50" type="color">#fce4ec</item> <item name="purple_50" type="color">#f3e5f5</item> <item name="deep_purple_50" type="color">#ede7f6</item> <item name="indigo_50" type="color">#e8eaf6</item> <item name="blue_50" type="color">#e7e9fd</item> <item name="light_blue_50" type="color">#e1f5fe</item> <item name="cyan_50" type="color">#e0f7fa</item> <item name="teal_50" type="color">#e0f2f1</item> <item name="green_50" type="color">#d0f8ce</item> <item name="light_green_50" type="color">#f1f8e9</item> <item name="lime_50" type="color">#f9fbe7</item> <item name="yellow_50" type="color">#fffde7</item> <item name="amber_50" type="color">#fff8e1</item> <item name="orange_50" type="color">#fff3e0</item> <item name="deep_orange_50" type="color">#fbe9e7</item> <item name="brown_50" type="color">#efebe9</item> <item name="grey_50" type="color">#fafafa</item> <item name="blue_grey_50" type="color">#eceff1</item> </array> <array name="mdcolor_100"> <item name="red_100" type="color">#f9bdbb</item> <item name="pink_100" type="color">#f8bbd0</item> <item name="purple_100" type="color">#e1bee7</item> <item name="deep_purple_100" type="color">#d1c4e9</item> <item name="indigo_100" type="color">#c5cae9</item> <item name="blue_100" type="color">#d0d9ff</item> <item name="light_blue_100" type="color">#b3e5fc</item> <item name="cyan_100" type="color">#b2ebf2</item> <item name="teal_100" type="color">#b2dfdb</item> <item name="green_100" type="color">#a3e9a4</item> <item name="light_green_100" type="color">#dcedc8</item> <item name="lime_100" type="color">#f0f4c3</item> <item name="yellow_100" type="color">#fff9c4</item> <item name="amber_100" type="color">#ffecb3</item> <item name="orange_100" type="color">#ffe0b2</item> <item name="deep_orange_100" type="color">#ffccbc</item> <item name="brown_100" type="color">#d7ccc8</item> <item name="grey_100" type="color">#f5f5f5</item> <item name="blue_grey_100" type="color">#cfd8dc</item> </array> <array name="mdcolor_200"> <item name="red_200" type="color">#f69988</item> <item name="pink_200" type="color">#f48fb1</item> <item name="purple_200" type="color">#ce93d8</item> <item name="deep_purple_200" type="color">#b39ddb</item> <item name="indigo_200" type="color">#9fa8da</item> <item name="blue_200" type="color">#afbfff</item> <item name="light_blue_200" type="color">#81d4fa</item> <item name="cyan_200" type="color">#80deea</item> <item name="teal_200" type="color">#80cbc4</item> <item name="green_200" type="color">#72d572</item> <item name="light_green_200" type="color">#c5e1a5</item> <item name="lime_200" type="color">#e6ee9c</item> <item name="yellow_200" type="color">#fff59d</item> <item name="orange_200" type="color">#ffcc80</item> <item name="deep_orange_200" type="color">#ffab91</item> <item name="brown_200" type="color">#bcaaa4</item> <item name="grey_200" type="color">#eeeeee</item> <item name="blue_grey_200" type="color">#b0bec5</item> </array> <array name="mdcolor_300"> <item name="red_300" type="color">#f36c60</item> <item name="pink_300" type="color">#f06292</item> <item name="purple_300" type="color">#ba68c8</item> <item name="deep_purple_300" type="color">#9575cd</item> <item name="indigo_300" type="color">#7986cb</item> <item name="blue_300" type="color">#91a7ff</item> <item name="light_blue_300" type="color">#4fc3f7</item> <item name="cyan_300" type="color">#4dd0e1</item> <item name="teal_300" type="color">#4db6ac</item> <item name="green_300" type="color">#42bd41</item> <item name="light_green_300" type="color">#aed581</item> <item name="lime_300" type="color">#dce775</item> <item name="yellow_300" type="color">#fff176</item> <item name="orange_300" type="color">#ffb74d</item> <item name="deep_orange_300" type="color">#ff8a65</item> <item name="brown_300" type="color">#a1887f</item> <item name="grey_300" type="color">#e0e0e0</item> <item name="blue_grey_300" type="color">#90a4ae</item> </array> <array name="mdcolor_400"> <item name="red_400" type="color">#e84e40</item> <item name="pink_400" type="color">#ec407a</item> <item name="purple_400" type="color">#ab47bc</item> <item name="deep_purple_400" type="color">#7e57c2</item> <item name="indigo_400" type="color">#5c6bc0</item> <item name="blue_400" type="color">#738ffe</item> <item name="light_blue_400" type="color">#29b6f6</item> <item name="cyan_400" type="color">#26c6da</item> <item name="teal_400" type="color">#26a69a</item> <item name="green_400" type="color">#2baf2b</item> <item name="light_green_400" type="color">#9ccc65</item> <item name="lime_400" type="color">#d4e157</item> <item name="yellow_400" type="color">#ffee58</item> <item name="orange_400" type="color">#ffa726</item> <item name="deep_orange_400" type="color">#ff7043</item> <item name="brown_400" type="color">#8d6e63</item> <item name="grey_400" type="color">#bdbdbd</item> <item name="blue_grey_400" type="color">#78909c</item> </array> <array name="mdcolor_500"> <item name="red_500" type="color">#e51c23</item> <item name="pink_500" type="color">#e91e63</item> <item name="purple_500" type="color">#9c27b0</item> <item name="deep_purple_500" type="color">#673ab7</item> <item name="indigo_500" type="color">#3f51b5</item> <item name="blue_500" type="color">#5677fc</item> <item name="light_blue_500" type="color">#03a9f4</item> <item name="cyan_500" type="color">#00bcd4</item> <item name="teal_500" type="color">#009688</item> <item name="green_500" type="color">#259b24</item> <item name="light_green_500" type="color">#8bc34a</item> <item name="lime_500" type="color">#cddc39</item> <item name="yellow_500" type="color">#ffeb3b</item> <item name="orange_500" type="color">#ff9800</item> <item name="deep_orange_500" type="color">#ff5722</item> <item name="brown_500" type="color">#795548</item> <item name="grey_500" type="color">#9e9e9e</item> <item name="blue_grey_500" type="color">#607d8b</item> </array> <array name="mdcolor_600"> <item name="red_600" type="color">#dd191d</item> <item name="pink_600" type="color">#d81b60</item> <item name="purple_600" type="color">#8e24aa</item> <item name="deep_purple_600" type="color">#5e35b1</item> <item name="indigo_600" type="color">#3949ab</item> <item name="blue_600" type="color">#4e6cef</item> <item name="light_blue_600" type="color">#039be5</item> <item name="cyan_600" type="color">#00acc1</item> <item name="teal_600" type="color">#00897b</item> <item name="green_600" type="color">#0a8f08</item> <item name="light_green_600" type="color">#7cb342</item> <item name="lime_600" type="color">#c0ca33</item> <item name="yellow_600" type="color">#fdd835</item> <item name="orange_600" type="color">#fb8c00</item> <item name="deep_orange_600" type="color">#f4511e</item> <item name="brown_600" type="color">#6d4c41</item> <item name="grey_600" type="color">#757575</item> <item name="blue_grey_600" type="color">#546e7a</item> </array> <array name="mdcolor_700"> <item name="red_700" type="color">#d01716</item> <item name="pink_700" type="color">#c2185b</item> <item name="purple_700" type="color">#7b1fa2</item> <item name="deep_purple_700" type="color">#512da8</item> <item name="indigo_700" type="color">#303f9f</item> <item name="blue_700" type="color">#455ede</item> <item name="light_blue_700" type="color">#0288d1</item> <item name="cyan_700" type="color">#0097a7</item> <item name="teal_700" type="color">#00796b</item> <item name="green_700" type="color">#0a7e07</item> <item name="light_green_700" type="color">#689f38</item> <item name="lime_700" type="color">#afb42b</item> <item name="yellow_700" type="color">#fbc02d</item> <item name="orange_700" type="color">#f57c00</item> <item name="deep_orange_700" type="color">#e64a19</item> <item name="brown_700" type="color">#5d4037</item> <item name="grey_700" type="color">#616161</item> <item name="blue_grey_700" type="color">#455a64</item> </array> <array name="mdcolor_800"> <item name="red_800" type="color">#c41411</item> <item name="pink_800" type="color">#ad1457</item> <item name="purple_800" type="color">#6a1b9a</item> <item name="deep_purple_800" type="color">#4527a0</item> <item name="indigo_800" type="color">#283593</item> <item name="blue_800" type="color">#3b50ce</item> <item name="light_blue_800" type="color">#0277bd</item> <item name="cyan_800" type="color">#00838f</item> <item name="teal_800" type="color">#00695c</item> <item name="green_800" type="color">#056f00</item> <item name="light_green_800" type="color">#558b2f</item> <item name="lime_800" type="color">#9e9d24</item> <item name="yellow_800" type="color">#f9a825</item> <item name="orange_800" type="color">#ef6c00</item> <item name="deep_orange_800" type="color">#d84315</item> <item name="brown_800" type="color">#4e342e</item> <item name="grey_800" type="color">#424242</item> <item name="blue_grey_800" type="color">#37474f</item> </array> <array name="mdcolor_900"> <item name="red_900" type="color">#b0120a</item> <item name="pink_900" type="color">#880e4f</item> <item name="purple_900" type="color">#4a148c</item> <item name="deep_purple_900" type="color">#311b92</item> <item name="indigo_900" type="color">#1a237e</item> <item name="blue_900" type="color">#2a36b1</item> <item name="light_blue_900" type="color">#01579b</item> <item name="cyan_900" type="color">#006064</item> <item name="teal_900" type="color">#004d40</item> <item name="green_900" type="color">#0d5302</item> <item name="light_green_900" type="color">#33691e</item> <item name="lime_900" type="color">#827717</item> <item name="yellow_900" type="color">#f57f17</item> <item name="orange_900" type="color">#e65100</item> <item name="deep_orange_900" type="color">#bf360c</item> <item name="brown_900" type="color">#3e2723</item> <item name="grey_900" type="color">#212121</item> <item name="blue_grey_900" type="color">#263238</item> </array> <array name="mdcolor_A100"> <item name="red_A100" type="color">#ff7997</item> <item name="pink_A100" type="color">#ff80ab</item> <item name="purple_A100" type="color">#ea80fc</item> <item name="deep_purple_A100" type="color">#b388ff</item> <item name="indigo_A100" type="color">#8c9eff</item> <item name="blue_A100" type="color">#a6baff</item> <item name="light_blue_A100" type="color">#80d8ff</item> <item name="cyan_A100" type="color">#84ffff</item> <item name="teal_A100" type="color">#a7ffeb</item> <item name="green_A100" type="color">#a2f78d</item> <item name="light_green_A100" type="color">#ccff90</item> <item name="lime_A100" type="color">#f4ff81</item> <item name="yellow_A100" type="color">#ffff8d</item> <item name="orange_A100" type="color">#ffd180</item> <item name="deep_orange_A100" type="color">#ff9e80</item> </array> <array name="mdcolor_A200"> <item name="red_A200" type="color">#ff5177</item> <item name="pink_A200" type="color">#ff4081</item> <item name="purple_A200" type="color">#e040fb</item> <item name="deep_purple_A200" type="color">#7c4dff</item> <item name="indigo_A200" type="color">#536dfe</item> <item name="blue_A200" type="color">#6889ff</item> <item name="light_blue_A200" type="color">#40c4ff</item> <item name="cyan_A200" type="color">#18ffff</item> <item name="teal_A200" type="color">#64ffda</item> <item name="green_A200" type="color">#5af158</item> <item name="light_green_A200" type="color">#b2ff59</item> <item name="lime_A200" type="color">#eeff41</item> <item name="yellow_A200" type="color">#ffff00</item> <item name="orange_A200" type="color">#ffab40</item> <item name="deep_orange_A200" type="color">#ff6e40</item> </array> <array name="mdcolor_A400"> <item name="red_A400" type="color">#ff2d6f</item> <item name="pink_A400" type="color">#f50057</item> <item name="purple_A400" type="color">#d500f9</item> <item name="deep_purple_A400" type="color">#651fff</item> <item name="indigo_A400" type="color">#3d5afe</item> <item name="blue_A400" type="color">#4d73ff</item> <item name="light_blue_A400" type="color">#00b0ff</item> <item name="cyan_A400" type="color">#00e5ff</item> <item name="teal_A400" type="color">#1de9b6</item> <item name="green_A400" type="color">#14e715</item> <item name="light_green_A400" type="color">#76ff03</item> <item name="lime_A400" type="color">#c6ff00</item> <item name="yellow_A400" type="color">#ffea00</item> <item name="orange_A400" type="color">#ff9100</item> <item name="deep_orange_A400" type="color">#ff3d00</item> </array> <array name="mdcolor_A700"> <item name="red_A700" type="color">#e00032</item> <item name="pink_A700" type="color">#c51162</item> <item name="purple_A700" type="color">#aa00ff</item> <item name="deep_purple_A700" type="color">#6200ea</item> <item name="indigo_A700" type="color">#304ffe</item> <item name="blue_A700" type="color">#4d69ff</item> <item name="light_blue_A700" type="color">#0091ea</item> <item name="cyan_A700" type="color">#00b8d4</item> <item name="teal_A700" type="color">#00bfa5</item> <item name="green_A700" type="color">#12c700</item> <item name="light_green_A700" type="color">#64dd17</item> <item name="lime_A700" type="color">#aeea00</item> <item name="yellow_A700" type="color">#ffd600</item> <item name="orange_A700" type="color">#ff6d00</item> <item name="deep_orange_A700" type="color">#dd2c00</item> </array> <array name="extra"> <item name="grey_1000b" type="color">#000000</item> <item name="grey_1000w" type="color">#ffffff</item> </array> </resources> 

    Ajoutez la méthode suivante pour choisir une couleur aléatoire à partir d'un type parent

     private int getMatColor(String typeColor) { int returnColor = Color.BLACK; int arrayId = getResources().getIdentifier("mdcolor_" + typeColor, "array", getApplicationContext().getPackageName()); if (arrayId != 0) { TypedArray colors = getResources().obtainTypedArray(arrayId); int index = (int) (Math.random() * colors.length()); returnColor = colors.getColor(index, Color.BLACK); colors.recycle(); } return returnColor; } 

    Usage

     txt.setTextColor(getMatColor("500")); 

    Si vous voulez que quelque chose fonctionne avec un SDK plus ancien, vous pouvez essayer de cette façon:

     TypedArray colors = getResources().obtainTypedArray(R.array.loading_colors); int index = (int) (Math.random() * colors .length()); int color = colors.getColor(index, Color.BLACK); textView.setTextColor(color); colors.recycle(); 

    Vous devez déclarer vos couleurs dans un arrays.xml:

     <?xml version="1.0" encoding="utf-8"?> <resources> <array name="loading_colors"> <item name="red_50" type="color">#fde0dc</item> <item name="red_100" type="color">#f9bdbb</item> <item name="red_200" type="color">#f69988</item> <item name="red_300" type="color">#f36c60</item> <item name="red_400" type="color">#e84e40</item> <item name="red_500" type="color">#e51c23</item> <item name="red_600" type="color">#dd191d</item> <item name="red_700" type="color">#d01716</item> <item name="red_800" type="color">#c41411</item> <item name="red_900" type="color">#b0120a</item> <item name="red_A100" type="color">#ff7997</item> <item name="red_A200" type="color">#ff5177</item> <item name="red_A400" type="color">#ff2d6f</item> <item name="red_A700" type="color">#e00032</item> <item name="pink_50" type="color">#fce4ec</item> <item name="pink_100" type="color">#f8bbd0</item> <item name="pink_200" type="color">#f48fb1</item> <item name="pink_300" type="color">#f06292</item> <item name="pink_400" type="color">#ec407a</item> <item name="pink_500" type="color">#e91e63</item> <item name="pink_600" type="color">#d81b60</item> <item name="pink_700" type="color">#c2185b</item> <item name="pink_800" type="color">#ad1457</item> <item name="pink_900" type="color">#880e4f</item> <item name="pink_A100" type="color">#ff80ab</item> <item name="pink_A200" type="color">#ff4081</item> <item name="pink_A400" type="color">#f50057</item> <item name="pink_A700" type="color">#c51162</item> <item name="purple_50" type="color">#f3e5f5</item> <item name="purple_100" type="color">#e1bee7</item> <item name="purple_200" type="color">#ce93d8</item> <item name="purple_300" type="color">#ba68c8</item> <item name="purple_400" type="color">#ab47bc</item> <item name="purple_500" type="color">#9c27b0</item> <item name="purple_600" type="color">#8e24aa</item> <item name="purple_700" type="color">#7b1fa2</item> <item name="purple_800" type="color">#6a1b9a</item> <item name="purple_900" type="color">#4a148c</item> <item name="purple_A100" type="color">#ea80fc</item> <item name="purple_A200" type="color">#e040fb</item> <item name="purple_A400" type="color">#d500f9</item> <item name="purple_A700" type="color">#aa00ff</item> <item name="deep_purple_50" type="color">#ede7f6</item> <item name="deep_purple_100" type="color">#d1c4e9</item> <item name="deep_purple_200" type="color">#b39ddb</item> <item name="deep_purple_300" type="color">#9575cd</item> <item name="deep_purple_400" type="color">#7e57c2</item> <item name="deep_purple_500" type="color">#673ab7</item> <item name="deep_purple_600" type="color">#5e35b1</item> <item name="deep_purple_700" type="color">#512da8</item> <item name="deep_purple_800" type="color">#4527a0</item> <item name="deep_purple_900" type="color">#311b92</item> <item name="deep_purple_A100" type="color">#b388ff</item> <item name="deep_purple_A200" type="color">#7c4dff</item> <item name="deep_purple_A400" type="color">#651fff</item> <item name="deep_purple_A700" type="color">#6200ea</item> <item name="indigo_50" type="color">#e8eaf6</item> <item name="indigo_100" type="color">#c5cae9</item> <item name="indigo_200" type="color">#9fa8da</item> <item name="indigo_300" type="color">#7986cb</item> <item name="indigo_400" type="color">#5c6bc0</item> <item name="indigo_500" type="color">#3f51b5</item> <item name="indigo_600" type="color">#3949ab</item> <item name="indigo_700" type="color">#303f9f</item> <item name="indigo_800" type="color">#283593</item> <item name="indigo_900" type="color">#1a237e</item> <item name="indigo_A100" type="color">#8c9eff</item> <item name="indigo_A200" type="color">#536dfe</item> <item name="indigo_A400" type="color">#3d5afe</item> <item name="indigo_A700" type="color">#304ffe</item> <item name="blue_50" type="color">#e7e9fd</item> <item name="blue_100" type="color">#d0d9ff</item> <item name="blue_200" type="color">#afbfff</item> <item name="blue_300" type="color">#91a7ff</item> <item name="blue_400" type="color">#738ffe</item> <item name="blue_500" type="color">#5677fc</item> <item name="blue_600" type="color">#4e6cef</item> <item name="blue_700" type="color">#455ede</item> <item name="blue_800" type="color">#3b50ce</item> <item name="blue_900" type="color">#2a36b1</item> <item name="blue_A100" type="color">#a6baff</item> <item name="blue_A200" type="color">#6889ff</item> <item name="blue_A400" type="color">#4d73ff</item> <item name="blue_A700" type="color">#4d69ff</item> <item name="light_blue_50" type="color">#e1f5fe</item> <item name="light_blue_100" type="color">#b3e5fc</item> <item name="light_blue_200" type="color">#81d4fa</item> <item name="light_blue_300" type="color">#4fc3f7</item> <item name="light_blue_400" type="color">#29b6f6</item> <item name="light_blue_500" type="color">#03a9f4</item> <item name="light_blue_600" type="color">#039be5</item> <item name="light_blue_700" type="color">#0288d1</item> <item name="light_blue_800" type="color">#0277bd</item> <item name="light_blue_900" type="color">#01579b</item> <item name="light_blue_A100" type="color">#80d8ff</item> <item name="light_blue_A200" type="color">#40c4ff</item> <item name="light_blue_A400" type="color">#00b0ff</item> <item name="light_blue_A700" type="color">#0091ea</item> <item name="cyan_50" type="color">#e0f7fa</item> <item name="cyan_100" type="color">#b2ebf2</item> <item name="cyan_200" type="color">#80deea</item> <item name="cyan_300" type="color">#4dd0e1</item> <item name="cyan_400" type="color">#26c6da</item> <item name="cyan_500" type="color">#00bcd4</item> <item name="cyan_600" type="color">#00acc1</item> <item name="cyan_700" type="color">#0097a7</item> <item name="cyan_800" type="color">#00838f</item> <item name="cyan_900" type="color">#006064</item> <item name="cyan_A100" type="color">#84ffff</item> <item name="cyan_A200" type="color">#18ffff</item> <item name="cyan_A400" type="color">#00e5ff</item> <item name="cyan_A700" type="color">#00b8d4</item> <item name="teal_50" type="color">#e0f2f1</item> <item name="teal_100" type="color">#b2dfdb</item> <item name="teal_200" type="color">#80cbc4</item> <item name="teal_300" type="color">#4db6ac</item> <item name="teal_400" type="color">#26a69a</item> <item name="teal_500" type="color">#009688</item> <item name="teal_600" type="color">#00897b</item> <item name="teal_700" type="color">#00796b</item> <item name="teal_800" type="color">#00695c</item> <item name="teal_900" type="color">#004d40</item> <item name="teal_A100" type="color">#a7ffeb</item> <item name="teal_A200" type="color">#64ffda</item> <item name="teal_A400" type="color">#1de9b6</item> <item name="teal_A700" type="color">#00bfa5</item> <item name="green_50" type="color">#d0f8ce</item> <item name="green_100" type="color">#a3e9a4</item> <item name="green_200" type="color">#72d572</item> <item name="green_300" type="color">#42bd41</item> <item name="green_400" type="color">#2baf2b</item> <item name="green_500" type="color">#259b24</item> <item name="green_600" type="color">#0a8f08</item> <item name="green_700" type="color">#0a7e07</item> <item name="green_800" type="color">#056f00</item> <item name="green_900" type="color">#0d5302</item> <item name="green_A100" type="color">#a2f78d</item> <item name="green_A200" type="color">#5af158</item> <item name="green_A400" type="color">#14e715</item> <item name="green_A700" type="color">#12c700</item> <item name="light_green_50" type="color">#f1f8e9</item> <item name="light_green_100" type="color">#dcedc8</item> <item name="light_green_200" type="color">#c5e1a5</item> <item name="light_green_300" type="color">#aed581</item> <item name="light_green_400" type="color">#9ccc65</item> <item name="light_green_500" type="color">#8bc34a</item> <item name="light_green_600" type="color">#7cb342</item> <item name="light_green_700" type="color">#689f38</item> <item name="light_green_800" type="color">#558b2f</item> <item name="light_green_900" type="color">#33691e</item> <item name="light_green_A100" type="color">#ccff90</item> <item name="light_green_A200" type="color">#b2ff59</item> <item name="light_green_A400" type="color">#76ff03</item> <item name="light_green_A700" type="color">#64dd17</item> <item name="lime_50" type="color">#f9fbe7</item> <item name="lime_100" type="color">#f0f4c3</item> <item name="lime_200" type="color">#e6ee9c</item> <item name="lime_300" type="color">#dce775</item> <item name="lime_400" type="color">#d4e157</item> <item name="lime_500" type="color">#cddc39</item> <item name="lime_600" type="color">#c0ca33</item> <item name="lime_700" type="color">#afb42b</item> <item name="lime_800" type="color">#9e9d24</item> <item name="lime_900" type="color">#827717</item> <item name="lime_A100" type="color">#f4ff81</item> <item name="lime_A200" type="color">#eeff41</item> <item name="lime_A400" type="color">#c6ff00</item> <item name="lime_A700" type="color">#aeea00</item> <item name="yellow_50" type="color">#fffde7</item> <item name="yellow_100" type="color">#fff9c4</item> <item name="yellow_200" type="color">#fff59d</item> <item name="yellow_300" type="color">#fff176</item> <item name="yellow_400" type="color">#ffee58</item> <item name="yellow_500" type="color">#ffeb3b</item> <item name="yellow_600" type="color">#fdd835</item> <item name="yellow_700" type="color">#fbc02d</item> <item name="yellow_800" type="color">#f9a825</item> <item name="yellow_900" type="color">#f57f17</item> <item name="yellow_A100" type="color">#ffff8d</item> <item name="yellow_A200" type="color">#ffff00</item> <item name="yellow_A400" type="color">#ffea00</item> <item name="yellow_A700" type="color">#ffd600</item> <item name="amber_50" type="color">#fff8e1</item> <item name="amber_100" type="color">#ffecb3</item> <item name="amber_200" type="color">#ffe082</item> <item name="amber_300" type="color">#ffd54f</item> <item name="amber_400" type="color">#ffca28</item> <item name="amber_500" type="color">#ffc107</item> <item name="amber_600" type="color">#ffb300</item> <item name="amber_700" type="color">#ffa000</item> <item name="amber_800" type="color">#ff8f00</item> <item name="amber_900" type="color">#ff6f00</item> <item name="amber_A100" type="color">#ffe57f</item> <item name="amber_A200" type="color">#ffd740</item> <item name="amber_A400" type="color">#ffc400</item> <item name="amber_A700" type="color">#ffab00</item> <item name="orange_50" type="color">#fff3e0</item> <item name="orange_100" type="color">#ffe0b2</item> <item name="orange_200" type="color">#ffcc80</item> <item name="orange_300" type="color">#ffb74d</item> <item name="orange_400" type="color">#ffa726</item> <item name="orange_500" type="color">#ff9800</item> <item name="orange_600" type="color">#fb8c00</item> <item name="orange_700" type="color">#f57c00</item> <item name="orange_800" type="color">#ef6c00</item> <item name="orange_900" type="color">#e65100</item> <item name="orange_A100" type="color">#ffd180</item> <item name="orange_A200" type="color">#ffab40</item> <item name="orange_A400" type="color">#ff9100</item> <item name="orange_A700" type="color">#ff6d00</item> <item name="deep_orange_50" type="color">#fbe9e7</item> <item name="deep_orange_100" type="color">#ffccbc</item> <item name="deep_orange_200" type="color">#ffab91</item> <item name="deep_orange_300" type="color">#ff8a65</item> <item name="deep_orange_400" type="color">#ff7043</item> <item name="deep_orange_500" type="color">#ff5722</item> <item name="deep_orange_600" type="color">#f4511e</item> <item name="deep_orange_700" type="color">#e64a19</item> <item name="deep_orange_800" type="color">#d84315</item> <item name="deep_orange_900" type="color">#bf360c</item> <item name="deep_orange_A100" type="color">#ff9e80</item> <item name="deep_orange_A200" type="color">#ff6e40</item> <item name="deep_orange_A400" type="color">#ff3d00</item> <item name="deep_orange_A700" type="color">#dd2c00</item> <item name="brown_50" type="color">#efebe9</item> <item name="brown_100" type="color">#d7ccc8</item> <item name="brown_200" type="color">#bcaaa4</item> <item name="brown_300" type="color">#a1887f</item> <item name="brown_400" type="color">#8d6e63</item> <item name="brown_500" type="color">#795548</item> <item name="brown_600" type="color">#6d4c41</item> <item name="brown_700" type="color">#5d4037</item> <item name="brown_800" type="color">#4e342e</item> <item name="brown_900" type="color">#3e2723</item> <item name="grey_50" type="color">#fafafa</item> <item name="grey_100" type="color">#f5f5f5</item> <item name="grey_200" type="color">#eeeeee</item> <item name="grey_300" type="color">#e0e0e0</item> <item name="grey_400" type="color">#bdbdbd</item> <item name="grey_500" type="color">#9e9e9e</item> <item name="grey_600" type="color">#757575</item> <item name="grey_700" type="color">#616161</item> <item name="grey_800" type="color">#424242</item> <item name="grey_900" type="color">#212121</item> <item name="grey_1000b" type="color">#000000</item> <item name="grey_1000w" type="color">#ffffff</item> <item name="blue_grey_50" type="color">#eceff1</item> <item name="blue_grey_100" type="color">#cfd8dc</item> <item name="blue_grey_200" type="color">#b0bec5</item> <item name="blue_grey_300" type="color">#90a4ae</item> <item name="blue_grey_400" type="color">#78909c</item> <item name="blue_grey_500" type="color">#607d8b</item> <item name="blue_grey_600" type="color">#546e7a</item> <item name="blue_grey_700" type="color">#455a64</item> <item name="blue_grey_800" type="color">#37474f</item> <item name="blue_grey_900" type="color">#263238</item> </array> </resources> 

    Mais attention, il est probablement moins efficace que la réflexion.

    À l'aide de la réflexion, vous pouvez récupérer toutes les constantes java.awt.Color, quelque 148 couleurs avec des noms

     for (Field field : Color.class.getDeclaredFields()) { int modifiers = field.getModifiers(); if (Modifier.isPublic(modifiers) && Modifier.isStatic(modifiers) && Modifier.isFinal(modifiers) && field.getType() == Color.class) { String colorName = field.getName().toLowerCase(Locale.US); Color color = Color.valueOf(colorName); System.out.printf("- %s -> %s%n", colorName, color); } } 

    Cela utilise la réflexion et suppose que le nom constant est un nom lisible par l'homme.

     [139] thistle -> 0xd8bfd8ff [140] tomato -> 0xff6347ff [141] turquoise -> 0x40e0d0ff [142] violet -> 0xee82eeff [143] wheat -> 0xf5deb3ff [144] white -> 0xffffffff [145] whitesmoke -> 0xf5f5f5ff [146] yellow -> 0xffff00ff [147] yellowgreen -> 0x9acd32ff 

    Ajoutez donc les couleurs dans une liste, et choisissez au hasard un avec random.nextInt(colors.size()) .

    Comme Tibox l'a décrit:

    1. Ajoutez les couleurs des matériaux à array.xml :

     <array name="mdcolor_50"> <item name="red_50" type="color">#fde0dc</item> <item name="pink_50" type="color">#fce4ec</item> <item name="purple_50" type="color">#f3e5f5</item> <item name="deep_purple_50" type="color">#ede7f6</item> <item name="indigo_50" type="color">#e8eaf6</item> <item name="blue_50" type="color">#e7e9fd</item> <item name="light_blue_50" type="color">#e1f5fe</item> <item name="cyan_50" type="color">#e0f7fa</item> <item name="teal_50" type="color">#e0f2f1</item> <item name="green_50" type="color">#d0f8ce</item> <item name="light_green_50" type="color">#f1f8e9</item> <item name="lime_50" type="color">#f9fbe7</item> <item name="yellow_50" type="color">#fffde7</item> <item name="amber_50" type="color">#fff8e1</item> <item name="orange_50" type="color">#fff3e0</item> <item name="deep_orange_50" type="color">#fbe9e7</item> <item name="brown_50" type="color">#efebe9</item> <item name="grey_50" type="color">#fafafa</item> <item name="blue_grey_50" type="color">#eceff1</item> </array> <array name="mdcolor_100"> <item name="red_100" type="color">#f9bdbb</item> <item name="pink_100" type="color">#f8bbd0</item> <item name="purple_100" type="color">#e1bee7</item> <item name="deep_purple_100" type="color">#d1c4e9</item> <item name="indigo_100" type="color">#c5cae9</item> <item name="blue_100" type="color">#d0d9ff</item> <item name="light_blue_100" type="color">#b3e5fc</item> <item name="cyan_100" type="color">#b2ebf2</item> <item name="teal_100" type="color">#b2dfdb</item> <item name="green_100" type="color">#a3e9a4</item> <item name="light_green_100" type="color">#dcedc8</item> <item name="lime_100" type="color">#f0f4c3</item> <item name="yellow_100" type="color">#fff9c4</item> <item name="amber_100" type="color">#ffecb3</item> <item name="orange_100" type="color">#ffe0b2</item> <item name="deep_orange_100" type="color">#ffccbc</item> <item name="brown_100" type="color">#d7ccc8</item> <item name="grey_100" type="color">#f5f5f5</item> <item name="blue_grey_100" type="color">#cfd8dc</item> </array> <array name="mdcolor_200"> <item name="red_200" type="color">#f69988</item> <item name="pink_200" type="color">#f48fb1</item> <item name="purple_200" type="color">#ce93d8</item> <item name="deep_purple_200" type="color">#b39ddb</item> <item name="indigo_200" type="color">#9fa8da</item> <item name="blue_200" type="color">#afbfff</item> <item name="light_blue_200" type="color">#81d4fa</item> <item name="cyan_200" type="color">#80deea</item> <item name="teal_200" type="color">#80cbc4</item> <item name="green_200" type="color">#72d572</item> <item name="light_green_200" type="color">#c5e1a5</item> <item name="lime_200" type="color">#e6ee9c</item> <item name="yellow_200" type="color">#fff59d</item> <item name="orange_200" type="color">#ffcc80</item> <item name="deep_orange_200" type="color">#ffab91</item> <item name="brown_200" type="color">#bcaaa4</item> <item name="grey_200" type="color">#eeeeee</item> <item name="blue_grey_200" type="color">#b0bec5</item> </array> <array name="mdcolor_300"> <item name="red_300" type="color">#f36c60</item> <item name="pink_300" type="color">#f06292</item> <item name="purple_300" type="color">#ba68c8</item> <item name="deep_purple_300" type="color">#9575cd</item> <item name="indigo_300" type="color">#7986cb</item> <item name="blue_300" type="color">#91a7ff</item> <item name="light_blue_300" type="color">#4fc3f7</item> <item name="cyan_300" type="color">#4dd0e1</item> <item name="teal_300" type="color">#4db6ac</item> <item name="green_300" type="color">#42bd41</item> <item name="light_green_300" type="color">#aed581</item> <item name="lime_300" type="color">#dce775</item> <item name="yellow_300" type="color">#fff176</item> <item name="orange_300" type="color">#ffb74d</item> <item name="deep_orange_300" type="color">#ff8a65</item> <item name="brown_300" type="color">#a1887f</item> <item name="grey_300" type="color">#e0e0e0</item> <item name="blue_grey_300" type="color">#90a4ae</item> </array> <array name="mdcolor_400"> <item name="red_400" type="color">#e84e40</item> <item name="pink_400" type="color">#ec407a</item> <item name="purple_400" type="color">#ab47bc</item> <item name="deep_purple_400" type="color">#7e57c2</item> <item name="indigo_400" type="color">#5c6bc0</item> <item name="blue_400" type="color">#738ffe</item> <item name="light_blue_400" type="color">#29b6f6</item> <item name="cyan_400" type="color">#26c6da</item> <item name="teal_400" type="color">#26a69a</item> <item name="green_400" type="color">#2baf2b</item> <item name="light_green_400" type="color">#9ccc65</item> <item name="lime_400" type="color">#d4e157</item> <item name="yellow_400" type="color">#ffee58</item> <item name="orange_400" type="color">#ffa726</item> <item name="deep_orange_400" type="color">#ff7043</item> <item name="brown_400" type="color">#8d6e63</item> <item name="grey_400" type="color">#bdbdbd</item> <item name="blue_grey_400" type="color">#78909c</item> </array> <array name="mdcolor_500"> <item name="red_500" type="color">#e51c23</item> <item name="pink_500" type="color">#e91e63</item> <item name="purple_500" type="color">#9c27b0</item> <item name="deep_purple_500" type="color">#673ab7</item> <item name="indigo_500" type="color">#3f51b5</item> <item name="blue_500" type="color">#5677fc</item> <item name="light_blue_500" type="color">#03a9f4</item> <item name="cyan_500" type="color">#00bcd4</item> <item name="teal_500" type="color">#009688</item> <item name="green_500" type="color">#259b24</item> <item name="light_green_500" type="color">#8bc34a</item> <item name="lime_500" type="color">#cddc39</item> <item name="yellow_500" type="color">#ffeb3b</item> <item name="orange_500" type="color">#ff9800</item> <item name="deep_orange_500" type="color">#ff5722</item> <item name="brown_500" type="color">#795548</item> <item name="grey_500" type="color">#9e9e9e</item> <item name="blue_grey_500" type="color">#607d8b</item> </array> <array name="mdcolor_600"> <item name="red_600" type="color">#dd191d</item> <item name="pink_600" type="color">#d81b60</item> <item name="purple_600" type="color">#8e24aa</item> <item name="deep_purple_600" type="color">#5e35b1</item> <item name="indigo_600" type="color">#3949ab</item> <item name="blue_600" type="color">#4e6cef</item> <item name="light_blue_600" type="color">#039be5</item> <item name="cyan_600" type="color">#00acc1</item> <item name="teal_600" type="color">#00897b</item> <item name="green_600" type="color">#0a8f08</item> <item name="light_green_600" type="color">#7cb342</item> <item name="lime_600" type="color">#c0ca33</item> <item name="yellow_600" type="color">#fdd835</item> <item name="orange_600" type="color">#fb8c00</item> <item name="deep_orange_600" type="color">#f4511e</item> <item name="brown_600" type="color">#6d4c41</item> <item name="grey_600" type="color">#757575</item> <item name="blue_grey_600" type="color">#546e7a</item> </array> <array name="mdcolor_700"> <item name="red_700" type="color">#d01716</item> <item name="pink_700" type="color">#c2185b</item> <item name="purple_700" type="color">#7b1fa2</item> <item name="deep_purple_700" type="color">#512da8</item> <item name="indigo_700" type="color">#303f9f</item> <item name="blue_700" type="color">#455ede</item> <item name="light_blue_700" type="color">#0288d1</item> <item name="cyan_700" type="color">#0097a7</item> <item name="teal_700" type="color">#00796b</item> <item name="green_700" type="color">#0a7e07</item> <item name="light_green_700" type="color">#689f38</item> <item name="lime_700" type="color">#afb42b</item> <item name="yellow_700" type="color">#fbc02d</item> <item name="orange_700" type="color">#f57c00</item> <item name="deep_orange_700" type="color">#e64a19</item> <item name="brown_700" type="color">#5d4037</item> <item name="grey_700" type="color">#616161</item> <item name="blue_grey_700" type="color">#455a64</item> </array> <array name="mdcolor_800"> <item name="red_800" type="color">#c41411</item> <item name="pink_800" type="color">#ad1457</item> <item name="purple_800" type="color">#6a1b9a</item> <item name="deep_purple_800" type="color">#4527a0</item> <item name="indigo_800" type="color">#283593</item> <item name="blue_800" type="color">#3b50ce</item> <item name="light_blue_800" type="color">#0277bd</item> <item name="cyan_800" type="color">#00838f</item> <item name="teal_800" type="color">#00695c</item> <item name="green_800" type="color">#056f00</item> <item name="light_green_800" type="color">#558b2f</item> <item name="lime_800" type="color">#9e9d24</item> <item name="yellow_800" type="color">#f9a825</item> <item name="orange_800" type="color">#ef6c00</item> <item name="deep_orange_800" type="color">#d84315</item> <item name="brown_800" type="color">#4e342e</item> <item name="grey_800" type="color">#424242</item> <item name="blue_grey_800" type="color">#37474f</item> </array> <array name="mdcolor_900"> <item name="red_900" type="color">#b0120a</item> <item name="pink_900" type="color">#880e4f</item> <item name="purple_900" type="color">#4a148c</item> <item name="deep_purple_900" type="color">#311b92</item> <item name="indigo_900" type="color">#1a237e</item> <item name="blue_900" type="color">#2a36b1</item> <item name="light_blue_900" type="color">#01579b</item> <item name="cyan_900" type="color">#006064</item> <item name="teal_900" type="color">#004d40</item> <item name="green_900" type="color">#0d5302</item> <item name="light_green_900" type="color">#33691e</item> <item name="lime_900" type="color">#827717</item> <item name="yellow_900" type="color">#f57f17</item> <item name="orange_900" type="color">#e65100</item> <item name="deep_orange_900" type="color">#bf360c</item> <item name="brown_900" type="color">#3e2723</item> <item name="grey_900" type="color">#212121</item> <item name="blue_grey_900" type="color">#263238</item> </array> <array name="mdcolor_A100"> <item name="red_A100" type="color">#ff7997</item> <item name="pink_A100" type="color">#ff80ab</item> <item name="purple_A100" type="color">#ea80fc</item> <item name="deep_purple_A100" type="color">#b388ff</item> <item name="indigo_A100" type="color">#8c9eff</item> <item name="blue_A100" type="color">#a6baff</item> <item name="light_blue_A100" type="color">#80d8ff</item> <item name="cyan_A100" type="color">#84ffff</item> <item name="teal_A100" type="color">#a7ffeb</item> <item name="green_A100" type="color">#a2f78d</item> <item name="light_green_A100" type="color">#ccff90</item> <item name="lime_A100" type="color">#f4ff81</item> <item name="yellow_A100" type="color">#ffff8d</item> <item name="orange_A100" type="color">#ffd180</item> <item name="deep_orange_A100" type="color">#ff9e80</item> </array> <array name="mdcolor_A200"> <item name="red_A200" type="color">#ff5177</item> <item name="pink_A200" type="color">#ff4081</item> <item name="purple_A200" type="color">#e040fb</item> <item name="deep_purple_A200" type="color">#7c4dff</item> <item name="indigo_A200" type="color">#536dfe</item> <item name="blue_A200" type="color">#6889ff</item> <item name="light_blue_A200" type="color">#40c4ff</item> <item name="cyan_A200" type="color">#18ffff</item> <item name="teal_A200" type="color">#64ffda</item> <item name="green_A200" type="color">#5af158</item> <item name="light_green_A200" type="color">#b2ff59</item> <item name="lime_A200" type="color">#eeff41</item> <item name="yellow_A200" type="color">#ffff00</item> <item name="orange_A200" type="color">#ffab40</item> <item name="deep_orange_A200" type="color">#ff6e40</item> </array> <array name="mdcolor_A400"> <item name="red_A400" type="color">#ff2d6f</item> <item name="pink_A400" type="color">#f50057</item> <item name="purple_A400" type="color">#d500f9</item> <item name="deep_purple_A400" type="color">#651fff</item> <item name="indigo_A400" type="color">#3d5afe</item> <item name="blue_A400" type="color">#4d73ff</item> <item name="light_blue_A400" type="color">#00b0ff</item> <item name="cyan_A400" type="color">#00e5ff</item> <item name="teal_A400" type="color">#1de9b6</item> <item name="green_A400" type="color">#14e715</item> <item name="light_green_A400" type="color">#76ff03</item> <item name="lime_A400" type="color">#c6ff00</item> <item name="yellow_A400" type="color">#ffea00</item> <item name="orange_A400" type="color">#ff9100</item> <item name="deep_orange_A400" type="color">#ff3d00</item> </array> <array name="mdcolor_A700"> <item name="red_A700" type="color">#e00032</item> <item name="pink_A700" type="color">#c51162</item> <item name="purple_A700" type="color">#aa00ff</item> <item name="deep_purple_A700" type="color">#6200ea</item> <item name="indigo_A700" type="color">#304ffe</item> <item name="blue_A700" type="color">#4d69ff</item> <item name="light_blue_A700" type="color">#0091ea</item> <item name="cyan_A700" type="color">#00b8d4</item> <item name="teal_A700" type="color">#00bfa5</item> <item name="green_A700" type="color">#12c700</item> <item name="light_green_A700" type="color">#64dd17</item> <item name="lime_A700" type="color">#aeea00</item> <item name="yellow_A700" type="color">#ffd600</item> <item name="orange_A700" type="color">#ff6d00</item> <item name="deep_orange_A700" type="color">#dd2c00</item> </array> <array name="extra"> <item name="grey_1000b" type="color">#000000</item> <item name="grey_1000w" type="color">#ffffff</item> </array> 

    2. Add getMDcolor() to your class:

     private int getMDcolor(String mdcolor) { int returnColor = 0; String[] mdcolors = new String[]{ "mdcolor_50", "mdcolor_100", "mdcolor_200", "mdcolor_300", "mdcolor_400", "mdcolor_500", "mdcolor_600", "mdcolor_700", "mdcolor_800", "mdcolor_900", "mdcolor_A100", "mdcolor_A200", "mdcolor_A400", "mdcolor_A700", "extras"}; if (Arrays.asList(mdcolors).contains(mdcolor)) { TypedArray colors = null; switch (mdcolor) { case "mdcolor_50": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_50); break; case "mdcolors_100": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_100); break; case "mdcolor_200": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_200); break; case "mdcolor_300": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_300); break; case "mdcolor_400": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_400); break; case "mdcolor_500": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_500); break; case "mdcolor_600": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_600); break; case "mdcolor_700": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_700); break; case "mdcolor_800": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_800); break; case "mdcolor_900": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_900); break; case "mdcolor_A100": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_A100); break; case "mdcolor_A200": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_A200); break; case "mdcolor_A400": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_A400); break; case "mdcolor_A700": colors = mContext.getResources().obtainTypedArray(R.array.mdcolor_A700); break; case "extra": colors = mContext.getResources().obtainTypedArray(R.array.extra); break; } if (colors != null) { int index = (int) (Math.random() * colors.length()); returnColor = colors.getColor(index, Color.BLACK); } assert colors != null; colors.recycle(); } return returnColor; 

    3. Usage:

    • Get a color by: getMDcolor("<md color id>")
    • Couleurs disponibles:
      mdcolor_50
      mdcolor_100
      mdcolor_200
      mdcolor_300
      mdcolor_400
      mdcolor_500
      mdcolor_600
      mdcolor_700
      mdcolor_800
      mdcolor_900
      mdcolor_A100
      mdcolor_A200
      mdcolor_A400
      mdcolor_A700
      extras

    Here is a class I wrote. You can create your own material color palette or get a random color.

    Example uses:

     // get a random color. int randomColor = MaterialColorPalette.getRandomColor("100"); // create your own material color palette MaterialColorPalette myCustomPalette = new MaterialColorPalette(Color.CYAN); int my200Color = myCustomPalette.getColor("200"); 

    MaterialColorPalette.java

     import android.graphics.Color; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Random; public class MaterialColorPalette { public static final int RED_500 = 0xFFF44336; public static final int PINK_500 = 0xFFE91E63; public static final int PURPLE_500 = 0xFF9C27B0; public static final int DEEP_PURPLE_500 = 0xFF673AB7; public static final int INDIGO_500 = 0xFF3F51B5; public static final int BLUE_500 = 0xFF2196F3; public static final int LIGHT_BLUE_500 = 0xFF03A9F4; public static final int CYAN_500 = 0xFF00BCD4; public static final int TEAL_500 = 0xFF009688; public static final int GREEN_500 = 0xFF4CAF50; public static final int LIGHT_GREEN_500 = 0xFF8BC34A; public static final int LIME_500 = 0xFFCDDC39; public static final int YELLOW_500 = 0xFFFFEB3B; public static final int AMBER_500 = 0xFFFFC107; public static final int ORANGE_500 = 0xFFFF9800; public static final int DEEP_ORANGE_500 = 0xFFFF5722; public static final int BROWN_500 = 0xFF795548; public static final int GREY_500 = 0xFF9E9E9E; public static final int BLUE_GREY_500 = 0xFF607D8B; private static final List<MaterialColorPalette> MATERIAL_PALETTES; private static final Random RANDOM = new Random(); static { MATERIAL_PALETTES = new ArrayList<>(); MATERIAL_PALETTES.add(new MaterialColorPalette(RED_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(PINK_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(PURPLE_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(DEEP_PURPLE_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(INDIGO_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(BLUE_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(LIGHT_BLUE_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(CYAN_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(TEAL_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(GREEN_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(LIGHT_GREEN_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(LIME_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(YELLOW_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(AMBER_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(ORANGE_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(DEEP_ORANGE_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(BROWN_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(GREY_500)); MATERIAL_PALETTES.add(new MaterialColorPalette(BLUE_GREY_500)); } public static int getRandomColor(String key) { return MATERIAL_PALETTES.get(RANDOM.nextInt(MATERIAL_PALETTES.size())).getColor(key); } /** * Lighten or darken a color * * @param color * color value * @param percent * -1.0 to 1.0 * @return new shaded color * @see #shadeColor(String, double) */ public static int shadeColor(int color, double percent) { return shadeColor(String.format("#%06X", (0xFFFFFF & color)), percent); // ignores alpha channel } /** * Lighten or darken a color * * @param color * 7 character string representing the color. * @param percent * -1.0 to 1.0 * @return new shaded color * @see #shadeColor(int, double) */ public static int shadeColor(String color, double percent) { // based off http://stackoverflow.com/a/13542669/1048340 long f = Long.parseLong(color.substring(1), 16); double t = percent < 0 ? 0 : 255; double p = percent < 0 ? percent * -1 : percent; long R = f >> 16; long G = f >> 8 & 0x00FF; long B = f & 0x0000FF; int red = (int) (Math.round((t - R) * p) + R); int green = (int) (Math.round((t - G) * p) + G); int blue = (int) (Math.round((t - B) * p) + B); return Color.rgb(red, green, blue); } private final HashMap<String, Integer> palette = new HashMap<>(); /** * @param primary * the 500 color */ public MaterialColorPalette(int primary) { palette.put("50", shadeColor(primary, 0.9)); palette.put("100", shadeColor(primary, 0.7)); palette.put("200", shadeColor(primary, 0.5)); palette.put("300", shadeColor(primary, 0.333)); palette.put("400", shadeColor(primary, 0.166)); palette.put("500", primary); palette.put("600", shadeColor(primary, -0.125)); palette.put("700", shadeColor(primary, -0.25)); palette.put("800", shadeColor(primary, -0.375)); palette.put("900", shadeColor(primary, -0.5)); palette.put("A100", shadeColor(primary, 0.7)); palette.put("A200", shadeColor(primary, 0.5)); palette.put("A400", shadeColor(primary, 0.166)); palette.put("A700", shadeColor(primary, -0.25)); } public int getColor(String key) { return palette.get(key); } public void putColor(String key, int color) { palette.put(key, color); } } 

    Just copy the class into your project and add the package declaration.

    coAndroid est un fan Android de Google, tout sur les téléphones Android, Android Wear, Android Dev et Android Games Apps.