android 动态更改主题,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

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

#f00

#ff0

@color/windowBackgroundColor1

#0000ff

#757575

#03A9F4

@color/windowBackgroundColor2

#1976D2

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