1. Set up topics using API
As shown below, use setTheme in Activity
setTheme(.MyTheme1);
2. The timing of calling the API
Need to be in(savedInstanceState)Called setTheme before
3. Reset the theme
To reset the topic, you need to end the activity and restart it
public class MainActivity extends Activity {
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
if(MyApplication.SHOW_THEME_FLAG == MyApplication.SHOW_1_THEME_FLAG){
setTheme(.MyTheme2);
}else if(MyApplication.SHOW_THEME_FLAG == MyApplication.SHOW_2_THEME_FLAG){
setTheme(.MyTheme1);
}
(savedInstanceState);
setContentView(.activity_main);
tv = findViewById();
getActionBar().show();
getActionBar().setTitle("ActionBar Title");
(new () {
@Override
public void onClick(View view) {
if(MyApplication.SHOW_THEME_FLAG == MyApplication.SHOW_1_THEME_FLAG){
MyApplication.SHOW_THEME_FLAG = MyApplication.SHOW_2_THEME_FLAG;
}else if(MyApplication.SHOW_THEME_FLAG == MyApplication.SHOW_2_THEME_FLAG){
MyApplication.SHOW_THEME_FLAG = MyApplication.SHOW_1_THEME_FLAG;
}
Intent mIntent = getIntent();
finish();
overridePendingTransition(0,0);
startActivity(mIntent);
}
});
}
}
4. Common theme style settings
<style name="MyTheme1" parent="@android:style/">
<!-- Status bar -->
<item name="android:colorPrimaryDark">#f00</item>
<!-- ActionBarcolor -->
<item name="android:colorPrimary">#ff0</item>
<!-- Interface background color -->
<item name="android:windowBackground">@color/windowBackgroundColor1</item>
<!-- 导航栏color -->
<item name="android:navigationBarColor">#0000ff</item>
</style>
<style name="MyTheme2" parent="@android:style/">
<!-- Status bar -->
<item name="android:colorPrimaryDark">#757575</item>
<!-- ActionBarcolor -->
<item name="android:colorPrimary">#03A9F4</item>
<!-- Interface background color -->
<item name="android:windowBackground">@color/windowBackgroundColor2</item>
<!-- 导航栏color -->
<item name="android:navigationBarColor">#1976D2</item>
</style>
Summarize
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