Question

我有一个简单的CoordinatorLayout，其中ConstraintLayout作为底页和其他2个视图。底页工作正常，但我似乎无法在任何视图上获得触摸事件。

的xml：

<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:animateLayoutChanges="true">

    <include layout="@layout/app_bar" />

    <include layout="@layout/content_main"/>

    <View
        android:id="@+id/way_finding_pin_background"
        android:layout_width="52dp"
        android:layout_height="52dp"
        android:elevation="4dp"
        android:layout_marginStart="@dimen/fab_margin"
        android:layout_marginEnd="@dimen/fab_margin"
        android:background="@drawable/way_finding_pin_background"
        app:layout_anchor="@+id/way_finding_bar_content"
        app:layout_anchorGravity="top|start"
        />

    <ImageView
        android:id="@+id/way_finding_pin"
        android:layout_width="36dp"
        android:layout_height="36dp"
        android:layout_marginStart="24dp"
        android:src="@drawable/ic_add_location"
        android:elevation="4dp"
        android:clickable="true"
        android:focusable="true"
        android:duplicateParentState="true"
        app:layout_anchor="@+id/way_finding_bar_content"
        app:layout_anchorGravity="top|start"
        />

    <android.support.constraint.ConstraintLayout
        android:id="@+id/way_finding_bar_content"
        android:layout_width="match_parent"
        android:layout_height="420dp"
        android:elevation="3dp"
        app:behavior_peekHeight="64dp"
        app:behavior_hideable="false"
        tools:visibility="visible"
        android:background="@android:color/darker_gray"
     app:layout_behavior="android.support.design.widget.BottomSheetBehavior"
        >


    </android.support.constraint.ConstraintLayout>

</android.support.design.widget.CoordinatorLayout>

的活动：

wayFindingBar.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                Log.d(TAG, "onTouch() bar called with: v = [" + v + "], event = [" + event + "]");
                wayFindingPin.onTouchEvent(event);
                return true;
            }
        });

wayFindingPinBkg.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                Log.d(TAG, "onTouch() pin background called with: v = [" + v + "], event = [" + event + "]");
                wayFindingPin.onTouchEvent(event);
                return true;
            }
        });

wayFindingPin.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_DOWN) {
                    Log.d(TAG, "onTouch() pin called with: view = [" + view + "], event = [" + event + "]");
                    return true;
                } else {
                    return false;
                }
            }
        });

活动中的所有onTouch侦听器都没有被调用过。在这种情况下如何拦截触摸事件？

Answer 1

我真的不知道为什么会发生，但是“ android：animateLayoutChanges” =“ true”是原因。我没有足够的时间来找出原因。您应该尝试一下。

未调用底部单元格onTouch（）

1 个答案: