Android应用动态修改主题的方法示例
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
publicclassMainActivityextendsActivity{
privateTextViewtv;
@Override
protectedvoidonCreate(BundlesavedInstanceState){
if(MyApplication.SHOW_THEME_FLAG==MyApplication.SHOW_1_THEME_FLAG){
setTheme(R.style.MyTheme2);
}elseif(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("ActionBarTitle");
tv.setOnClickListener(newView.OnClickListener(){
@Override
publicvoidonClick(Viewview){
if(MyApplication.SHOW_THEME_FLAG==MyApplication.SHOW_1_THEME_FLAG){
MyApplication.SHOW_THEME_FLAG=MyApplication.SHOW_2_THEME_FLAG;
}elseif(MyApplication.SHOW_THEME_FLAG==MyApplication.SHOW_2_THEME_FLAG){
MyApplication.SHOW_THEME_FLAG=MyApplication.SHOW_1_THEME_FLAG;
}
IntentmIntent=getIntent();
finish();
overridePendingTransition(0,0);
startActivity(mIntent);
}
});
}
}
4.常用主题style设置
#f00 #ff0 @color/windowBackgroundColor1 #0000ff #757575 #03A9F4 @color/windowBackgroundColor2 #1976D2
总结
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