android設置界面全屏

//設置界面全屏

//獲取decorView
View decorView = getWindow().getDecorView();

//判斷版本
if (Build.VERSION.SDK_INT > 11 && Build.VERSION.SDK_INT < 19) {
    //11~18版本
    decorView.setSystemUiVisibility(View.GONE);
} else if(Build.VERSION.SDK_INT >= 19) {
    //19及以上版本
    //SYSTEM_UI_FLAG_HIDE_NAVIGATION:隱藏導航欄
    //SYSTEM_UI_FLAG_IMMERSIVE_STICKY:從狀態欄下拉會半透明懸浮顯示一會兒狀態欄和導航欄
    //SYSTEM_UI_FLAG_FULLSCREEN:全屏
    int options = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
            View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY |
            View.SYSTEM_UI_FLAG_FULLSCREEN;

    //設置到控件
    decorView.setSystemUiVisibility(options);
}