Splash隐藏状态栏和导航栏

/**
 * 隐藏状态栏和导航栏
 */
public void hideBar() {
    int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hide nav bar
            | View.SYSTEM_UI_FLAG_FULLSCREEN; // hide status bar

    if (android.os.Build.VERSION.SDK_INT >= 19) {
        uiFlags |= View.SYSTEM_UI_FLAG_IMMERSIVE;//0x00001000; // SYSTEM_UI_FLAG_IMMERSIVE_STICKY: hide
    } else {
        uiFlags |= View.SYSTEM_UI_FLAG_LOW_PROFILE;
    }

    try {
        getWindow().getDecorView().setSystemUiVisibility(uiFlags);
    } catch (Exception e) {
    }

}

设置无标题：

			requestWindowFeature(Window.FEATURE_NO_TITLE);

设置属性：

	 WindowManager.LayoutParams lp = getWindow().getAttributes();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
        lp.layoutInDisplayCutoutMode = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES;
    }
    getWindow().setAttributes(lp);

设置背景图片

int id = getBackgroundDrawableId();
    if (id > 0) {
        getWindow().getDecorView().setBackground(getDrawable(getBackgroundDrawableId()));//设置背景
    }
    protected int getBackgroundDrawableId() {
    return R.mipmap.splash_bg; //获取splash窗口背景资源
}