今天在做一个app引导界面的时候，想设置成全屏显示，一直报错aused by: android.util.AndroidRuntimeException:
requestFeature() must be called before adding content，百度了很多都不行后来实在没办法了，Google了一下，终于解决了，由于我用的是Google最新的开发工具，继承的是ActionBarActivity,改成继承Activity 完美解决！！
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//supportRequestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS); //取消标题 requestWindowFeature(Window.FEATURE_NO_TITLE); //取消状态栏 this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); // 写在 super.onCreate(savedInstanceState);this.setContentView(R.layout.activity_main); 之前
public class MainActivity extends Activity {
private ViewPager mPager;
private ArrayList mPageViews;
private MyPagerAdapter mPageAdapter;
private ViewPager mFramePager;
private ArrayList mFramePageViews;
private MyPagerAdapter mFramePageAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
//supportRequestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
//取消标题
requestWindowFeature(Window.FEATURE_NO_TITLE);
//取消状态栏
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
super.onCreate(savedInstanceState);
this.setContentView(R.layout.activity_main);
initViewPager();
} 
