A Java library for implementing dark theme easily in android apps.
- Easy Implentation;
- Saves the theme even when app restarts.
allprojects { repositories { ... maven { url 'https://jitpack.io' } } } dependencies { implementation 'com.github.erliteHq:themelite:1.1.0' } Step 4. In your colors-night xml file, set the corresponding dark theme colors for the colors in the colors xml file.
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_###); //initialize ThemeLite themeLite = new ThemeLite(this); //declare darkSwitch = findViewById(R.id.darkSwitch); //set theme in splash or main activity themeLite.setTheme(); //set switch state dependent on theme if (themeLite.getTheme == themeLite.isDark){ darkSwitch.setChecked(true); } //switch listener darkSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if(isChecked){ themeLite.setDark(); } else { themeLite.setLight(); } } }); } //save theme for app restart in closing activity @Override protected void onSaveInstanceState(@NonNull Bundle outState) { super.onSaveInstanceState(outState); themeLite.saveTheme(this); } 
For smooth transitions between light mode and dark mode add this to your styles xml file
//Base Application theme <style name="AppTheme" parent="Theme.AppCompat.Light.xxx"> ... ... <item name="android:windowAnimationStyle">@style/WindowAnimationTransition</item> </style> <style name="WindowAnimationTransition"> <item name="android:windowEnterAnimation">@android:anim/fade_in</item> <item name="android:windowExitAnimation">@android:anim/fade_out</item> </style> Don't forget to add it to your styles-night file too!
Feel free to fork and clone the repo!
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