Question

我有一个ConstraintLayout，其中包含一些按钮，该ConstraintLayout（在某些情况下）位于FrameLayout的后面，后者将他隐藏了。

我只需要从此ConstraintLayout中带一个特定按钮到ToFront，而不是所有按钮。

应该注意的是，在我首先带ConstraintLayout（隐藏）之前，我不能带按钮。我该怎么办？

这是ConstraintLayout：

   <android.support.constraint.ConstraintLayout
    android:id="@+id/inside_call_btns_cl"
    android:layout_width="match_parent"
    android:layout_height="0dp"
    android:visibility="visible"
    app:layout_constraintBottom_toBottomOf="parent">
    <!--Buttons section-->
    <ToggleButton
        android:id="@+id/speaker_iv"
        android:layout_width="68dp"
        android:layout_height="68dp"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="30dp"
        android:background="@drawable/speaker_selector"
        android:checked="true"
        android:scaleType="fitCenter"
        android:textOff=""
        android:textOn=""
        app:layout_constraintBottom_toBottomOf="@+id/bonus_rl"
        app:layout_constraintEnd_toStartOf="@+id/bonus_rl"
        app:layout_constraintStart_toStartOf="parent"></ToggleButton>


    <ToggleButton
        android:id="@+id/mute_iv"
        android:layout_width="68dp"
        android:layout_height="68dp"
        android:layout_centerHorizontal="true"
        android:layout_marginBottom="30dp"
        android:background="@drawable/mute_selector"
        android:checked="false"
        android:scaleType="fitCenter"
        android:textOff=""
        android:textOn=""
        app:layout_constraintBottom_toBottomOf="@+id/bonus_rl"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toEndOf="@+id/bonus_rl" />


    <RelativeLayout
        android:id="@+id/bonus_rl"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="35dp"
        app:layout_constraintBottom_toTopOf="@+id/camera_switch_iv"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">


        <app.components.CircleImageView
            android:visibility="visible"
            android:id="@+id/mic_flag_civ"
            android:layout_width="67dp"
            android:layout_height="67dp"
            android:layout_centerInParent="true"
            android:alpha="0.3"
            android:src="@drawable/flag_united_states_of_america" />

        <ImageView
            android:visibility="visible"
            android:id="@+id/bonus_rl_iv"
            android:layout_width="68dp"
            android:clickable="false"
            android:layout_height="68dp"
            android:layout_marginTop="3dp"
            android:scaleType="fitCenter"
            android:background="@drawable/bonus_rl_disabled" />

    </RelativeLayout>

    <ImageView
        android:id="@+id/camera_switch_iv"
        android:layout_width="54dp"
        android:layout_height="54dp"
        android:layout_marginBottom="35dp"
        android:src="@drawable/ic_camera_switch"
        android:visibility="visible"
        app:layout_constraintBottom_toTopOf="@+id/decline_rl"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent" />

    <RelativeLayout
        android:id="@+id/decline_rl"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="30dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent">

        <app.components.CircleImageView

        </app.components.CircleImageView>

        <ImageView
            android:id="@+id/hang_up_iv"  
            ----
            ----
           ---- />

    </RelativeLayout>

</android.support.constraint.ConstraintLayout>

然后FrameLayout覆盖此ConstraintLayout，我只需要将 bonus_rl 放在前面

Answer 1

尝试：

view.getParent().bringChildToFront(view);
view.getParent().requestLayout();

如何仅将“ bringToFront（）”设置为特定视图（按钮）？

1 个答案: