純凈、安全、綠色的下載網站
package com.example.kotlindemo.utils import android.content.Context import android.content.res.Configuration import androidx.appcompat.app.AppCompatDelegate import androidx.core.content.edit /** * author: chen * data: 2021/10/11 * des: 深色主題工具類 */ object DarkThemeUtil { private const val DATA_NAME = "DayNight" // 存儲深色模式狀態的文件名,自行更改 /** * 判斷是否開啟了深色模式 */ fun isDarkTheme(context: Context): Boolean { val flag = context.resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK return flag == Configuration.UI_MODE_NIGHT_YES } /** * 跟隨系統設置打開關閉深色主題 */ fun DefaultTheme() { AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_FOLLOW_SYSTEM) } /** * 打開深色模式 */ fun openDarkTheme() { AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES) } /** * 關閉深色模式 */ fun closeDarkTheme() { AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO) } /** * 寫入內存數據 * 將當前的深色模式狀態保持到內存,下次啟動 APP 以讀取 * @param context Context * @param state 深色模式狀態,true 打開狀態,false 關閉狀態 */ fun writeDarkThemeState(context: Context, state: Boolean) { context.getSharedPreferences(DATA_NAME, Context.MODE_PRIVATE) .edit{ putBoolean("boolean_dark_theme_state", state) } } /** * 讀取內存數據 */ fun readDarkThemeState(context: Context): Boolean { return context.getSharedPreferences(DATA_NAME, Context.MODE_PRIVATE) .getBoolean("boolean_dark_theme_state", false) } }
下面我用color中的background_color公用背景色來展示,說白了就是不同模式下Android會自動切換你設置好的顏色。
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="colorPrimary">#008577</color> <color name="colorPrimaryDark">#00574B</color> <color name="colorAccent">#D81B60</color> <color name="color_000000">#000000</color> <color name="color_ffffff">#ffffff</color> <color name="color_008adb">#008adb</color> <color name="light_blue_600">#FF039BE5</color> <color name="light_blue_900">#FF01579B</color> <color name="light_blue_A200">#FF40C4FF</color> <color name="light_blue_A400">#FF00B0FF</color> <color name="black_overlay">#66000000</color> <color name="background_color">#ffffff</color> </resources>
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="colorPrimary">#111111</color> <color name="colorPrimaryDark">#00574B</color> <color name="colorAccent">#D81B60</color> <color name="color_000000">#000000</color> <color name="color_ffffff">#ffffff</color> <color name="color_008adb">#008adb</color> <color name="light_blue_600">#FF039BE5</color> <color name="light_blue_900">#FF01579B</color> <color name="light_blue_A200">#FF40C4FF</color> <color name="light_blue_A400">#FF00B0FF</color> <color name="black_overlay">#66000000</color> <color name="background_color">#111111</color> </resources>
在xml添加上背景色即可:
在你想要activity開啟深色主題適配即可
效果圖如下:
Paint paint = new Paint(); ColorMatrix colorMatrix= new ColorMatrix(); colorMatrix.setSaturation(0); paint.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); getWindow().getDecorView().setLayerType(View.LAYER_TYPE_HARDWARE, paint);
val paint = Paint() val colorMatrix = ColorMatrix() colorMatrix.setSaturation(0F) paint.setColorFilter(ColorMatrixColorFilter(colorMatrix)) window.decorView.setLayerType(View.LAYER_TYPE_HARDWARE,paint)