1.xml設(shè)置fitsSystemWindows = false
2.配置themes

3.onCreate中配置全面屏:
```java
window.decorView.systemUiVisibility=View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATIONor View.SYSTEM_UI_FLAG_LAYOUT_STABLE
// 設(shè)置狀態(tài)欄和導(dǎo)航欄為透明
if (Build.VERSION.SDK_INT >=Build.VERSION_CODES.LOLLIPOP) {
? ? window.statusBarColor =Color.TRANSPARENT
? ? window.navigationBarColor =Color.TRANSPARENT
}
```