Android 常用的控件

1.TextView

2.EditText

3.Button

4.Menu

@Override
public boolean onCreateOptionsMenu(Menu menu) {
menu.add(0,1,1,R.string.hello) ;
menu.add(0,2,2,R.string.app_name);
return super.onCreateOptionsMenu(menu);
}

//选中菜单选项时触发事件
@Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
if(item.getItemId()==1){
finish() ;
}
return super.onMenuItemSelected(featureId, item);
}