1. 继承 Activity 不能继承 AppCompatActivity ;
2. 加入下面代码:(写在 setContentView(R.layout.activity_main);之前)
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
1. 继承 Activity 不能继承 AppCompatActivity ;
2. 加入下面代码:(写在 setContentView(R.layout.activity_main);之前)
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);