Android 常用设置：隐藏标题栏，设置状态栏透明(沉侵式)

 效果图：

 

@Override
protected void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	setContentView(R.layout.activity_first);

	//不显示标题
	ActionBar actionBar = getSupportActionBar();
	if (actionBar != null) {
		actionBar.hide();
	}
	SetStatusBarTransparent();//状态栏透明
	SetStatusBarTextColor(true);//状态栏文字变黑
}
  //设置状态栏字体为黑色
    private void SetStatusBarTextColor(boolean isBlack) {
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.M) {
            if (isBlack) {
                getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);//设置状态栏黑色字体
            } else {
                getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);//恢复状态栏白色字体
            }
        }
    }


    //设置半透明状态栏
    protected void SetStatusBarTransparent() {
        if (Build.VERSION.SDK_INT >= 21) {//21表示5.0
            View decorView = getWindow().getDecorView();
            int option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
            decorView.setSystemUiVisibility(option);
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);


        } else if (Build.VERSION.SDK_INT >= 19) {//19表示4.4
            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            //虚拟键盘也透明
            //getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
        }
    }