1.使用API设置主题
如下所示，在Activity中使用setTheme
setTheme(R.style.MyTheme1);2.调用API的时机
需要在super.onCreate(savedInstanceState)之前调用setTheme
3.重新设置主题
要重新设置主题，则需要结束Activity，重新启动才可以
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(R.style.MyTheme2);
}else if(MyApplication.SHOW_THEME_FLAG == MyApplication.SHOW_2_THEME_FLAG){
setTheme(R.style.MyTheme1);
}
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv = findViewById(R.id.tv);
getActionBar().show();
getActionBar().setTitle("ActionBar Title");
tv.setOnClickListener(new View.OnClickListener() {
@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.常用主题style设置
<style name="MyTheme1" parent="@android:style/Theme.Material">
<!-- 状态栏 -->
<item name="android:colorPrimaryDark">#f00</item>
<!-- ActionBar颜色 -->
<item name="android:colorPrimary">#ff0</item>
<!-- 界面背景色 -->
<item name="android:windowBackground">@color/windowBackgroundColor1</item>
<!-- 导航栏颜色 -->
<item name="android:navigationBarColor">#0000ff</item>
</style>
<style name="MyTheme2" parent="@android:style/Theme.Material">
<!-- 状态栏 -->
<item name="android:colorPrimaryDark">#757575</item>
<!-- ActionBar颜色 -->
<item name="android:colorPrimary">#03A9F4</item>
<!-- 界面背景色 -->
<item name="android:windowBackground">@color/windowBackgroundColor2</item>
<!-- 导航栏颜色 -->
<item name="android:navigationBarColor">#1976D2</item>
</style>总结
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