Android全屏设置及取消全屏设置

• 1、//在onCreat方法中setContentView（）之前插入
  requestWindowFeature(Window.FEATURE_NO_TITLE);//取消标题栏
  getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN ,
                WindowManager.LayoutParams. FLAG_FULLSCREEN);//全屏
  注：这种方法在启动activity时会闪现状态栏之后再全屏
  2、在manifest里面配置：<activity android:theme="@android:style/Theme.NoTitleBar.Fullscreen" />只在当前Activity内显示全屏
  <application  android:theme="@android:style/Theme.NoTitleBar.Fullscreen"  />为整个应用配置全屏显示
  3、/**
   * 全屏切换
   */
  public void fullScreenChange() {
  SharedPreferences mPreferences = PreferenceManager.getDefaultSharedPreferences(this);
  boolean fullScreen = mPreferences.getBoolean("fullScreen", false);
  WindowManager.LayoutParams attrs = getWindow().getAttributes(); 
  System.out.println("fullScreen的值:" + fullScreen);
  if (fullScreen) {
  attrs.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN); 
  getWindow().setAttributes(attrs); 
  //取消全屏设置
  getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);
  mPreferences.edit().putBoolean("fullScreen", false).commit() ;
  } else {
  attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN; 
  getWindow().setAttributes(attrs); 
  getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS); 
  mPreferences.edit().putBoolean("fullScreen", true).commit();
  }
  }