[英]BringToFront of the custom view inside a coordinator layout
Actually there is already similar question BringToFront doesn't work inside a coordinator layout 实际上已经存在类似的问题BringToFront在协调器布局中不起作用
However no of suggestions helped me to make bringToFront work within a coordinatorlayout. 然而,没有任何建议帮助我使bringToFront在Coordinatorlayout中工作。
Here is the layout-xml 这是layout-xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include layout="@layout/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
<android.support.v4.widget.DrawerLayout
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/main_content_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<fragment
android:id="@+id/navigation_drawer_container"
android:name="..."
android:layout_width="@dimen/navigation_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"/>
</android.support.v4.widget.DrawerLayout>
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/..."
android:clickable="true"
android:layout_gravity="bottom|end"
android:layout_marginRight="20dp"
android:layout_marginBottom="60dp"
app:borderWidth="0dp"/>
<CustomView
android:id="@+id/customview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentBottom="true"
android:orientation="vertical"
android:visibility="gone"
app:layout_behavior="..."/>
</android.support.design.widget.CoordinatorLayout>
The custom view is inherited from FrameLayout. 自定义视图继承自FrameLayout。 It can change its height. 它可以改变它的高度。
To bring the custom view to the front first I tried to add: 为了首先将自定义视图置于最前面,我尝试添加:
mCustomView.bringToFront();
Then 然后
mCustomView.requestLayout();
mCustomView.invalidate();
Finally also 最后也是
((View)mCustomView.getParent()).requestLayout();
But without success. 但没有成功。 The button is still on the top. 按钮仍位于顶部。
Did I missed anything? 我错过了什么吗?
Maybe there other possibilities to bring the custom view to front or to put the button under custom view? 也许有其他可能将自定义视图置于前面或将按钮置于自定义视图下?
I also tried to add a behaviour to the button, but since it's visibility depends not only on the custom view I thrown this approach away. 我还尝试向按钮添加一个行为,但由于它的可见性不仅取决于自定义视图,而且还抛弃了这种方法。
Thank you for any help in advance. 感谢您提前提供的任何帮助。
我终于找到了一个解决方法 - 如果我在AppBar上设置setEnabled(false)
,它会转到后台,无论API级别如何,我都可以在其上绘制其他内容。
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