废话不多说直接上代码

if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {//5.0 全透明实现

Window window = getWindow();

window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN

| View.SYSTEM_UI_FLAG_LAYOUT_STABLE);

window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

window.setStatusBarColor(Color.TRANSPARENT);

WindowManager.LayoutParams lp = getWindow().getAttributes();

lp.layoutInDisplayCutoutMode = WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES;

getWindow().setAttributes(lp);

} else {//4.4 全透明状态栏

getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);

}

LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES是允许在刘海区域布局

还有其他两种

image.png