Android背景图覆盖状态栏（我的手机安卓版本是4.2.2）

 //ALT+Enter, 自行引入相应的包，

 1 public class MainActivity extends Activity {  
      
    @SuppressLint("InlinedApi")  
    @Override  
    protected void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        getWindow().requestFeature(Window.FEATURE_NO_TITLE);  
        if(VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {  
            Window window = getWindow();  
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS  
                    | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);  
            window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN  
                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION  
                            | View.SYSTEM_UI_FLAG_LAYOUT_STABLE);  
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);  
            window.setStatusBarColor(Color.TRANSPARENT);  
            window.setNavigationBarColor(Color.TRANSPARENT);  
        }  
  
        setContentView(R.layout.activity_main);  
    }  
  
}