Forked from alphamu/AA Transition App theme between light and dark themes
Created
April 12, 2019 12:03
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Example of how to change themes at runtime with a smooth animation. In this example, we just switch between a light and a dark theme. The activity animation is defined in the theme and as such will be default on all activities with the set theme. [Demo Video here](http://youtu.be/Ps0phswbHls).
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import android.content.Intent; | |
import android.os.Bundle; | |
import android.support.v7.app.AppCompatActivity; | |
import android.view.View; | |
import android.widget.ArrayAdapter; | |
import android.widget.Button; | |
import android.widget.ListView; | |
public class TransitionThemeActivity extends AppCompatActivity implements View.OnClickListener { | |
ListView mListView; | |
Button mChangeTheme; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
AppSettings settings = AppSettings.getInstance(this); | |
setTheme(settings.getBoolean(AppSettings.Key.USE_DARK_THEME) ? R.style.AppThemeDark : R.style.AppThemeLight); | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_transition_theme); | |
mListView = (ListView) findViewById(R.id.cheese_list); | |
mListView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, Cheeses.CHEESES)); | |
mChangeTheme = (Button) findViewById(R.id.change_theme); | |
mChangeTheme.setOnClickListener(this); | |
} | |
@Override | |
public void onClick(View v) { | |
AppSettings settings = AppSettings.getInstance(this); | |
settings.set(AppSettings.Key.USE_DARK_THEME, | |
!settings.getBoolean(AppSettings.Key.USE_DARK_THEME)); | |
Intent intent = new Intent(this, TransitionThemeActivity.class); | |
startActivity(intent); | |
finish(); | |
} | |
} |
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<?xml version="1.0" encoding="utf-8"?> | |
<manifest xmlns:android="http://schemas.android.com/apk/res/android" | |
package="com.alimuzaffar.android.scratchpad" > | |
<application | |
android:allowBackup="true" | |
android:icon="@mipmap/ic_launcher" | |
android:label="@string/app_name" | |
android:theme="@style/AppThemeLight" > | |
<activity | |
android:name=".TransitionThemeActivity" | |
android:label="@string/app_name" > | |
<intent-filter> | |
<action android:name="android.intent.action.MAIN" /> | |
<category android:name="android.intent.category.LAUNCHER" /> | |
</intent-filter> | |
</activity> | |
</application> | |
</manifest> |
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<resources> | |
<style name="AppThemeLight" parent="Theme.AppCompat.Light"> | |
<!-- Customize your theme here. --> | |
<item name="android:windowAnimationStyle">@style/WindowAnimationTransition</item> | |
</style> | |
<style name="AppThemeDark" parent="Theme.AppCompat"> | |
<!-- Customize your theme here. --> | |
<item name="android:windowAnimationStyle">@style/WindowAnimationTransition</item> | |
</style> | |
<!-- This will set the fade in animation on all your activities by default --> | |
<style name="WindowAnimationTransition"> | |
<item name="android:windowEnterAnimation">@android:anim/fade_in</item> | |
<item name="android:windowExitAnimation">@android:anim/fade_out</item> | |
</style> | |
</resources> |
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