Android CardView with ListView inside - onTouchLis

2019-05-27 04:41发布

问题:

Here's a test project which shows the issue dropbox link: https://www.dropbox.com/sh/8s3v9ydcj6jvpl8/AACZ2VRP2N9R1ec7pxrsAn0ga?dl=0

I have a cardview with a listview inside. I will need the click item in list view too and I want to be able to move the entire cardview using the ontouchlistener too. I have set a onTouchListener on the cardview but it doesn't work.

Code:

Put this in build.gradle:

compile 'com.android.support:cardview-v7:22.0+'

MainActivity:

package com.XXXXXXXX.testontouch;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.CardView;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import java.util.ArrayList;
import java.util.List;

public class MainActivity extends AppCompatActivity {

    private ListView mylistview;
    private CardView mycardview;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mycardview = (CardView)findViewById(R.id.mycardview);
        mylistview = (ListView) findViewById(R.id.myListView);

        List<String> your_array_list = new ArrayList<String>();
        your_array_list.add("foo");
        your_array_list.add("bar");
        your_array_list.add("foo");
        your_array_list.add("bar");
        your_array_list.add("foo");
        your_array_list.add("bar");
        your_array_list.add("foo");
        your_array_list.add("bar");
        your_array_list.add("foo");
        your_array_list.add("bar");
        your_array_list.add("foo");
        your_array_list.add("bar");
        your_array_list.add("foo");
        your_array_list.add("bar");


        ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
                this,
                android.R.layout.simple_list_item_1,
                your_array_list );

        mylistview.setAdapter(arrayAdapter);
        mycardview.setCardElevation(20);
        mycardview.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {

                System.out.println("TOuchedddd");
                return true;
            }
        });

    }
}

The TOuchedddd never prints. If I remove the ListView from the cardview, then it starts working.

So somehow the listView is consuming the touch events instead of the parent cardview first.

XML for MainActivity:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.pranapps.testontouch.MainActivity">



<android.support.v7.widget.CardView
    xmlns:card_view="http://schemas.android.com/apk/res-auto"
    android:layout_gravity="center"
    android:layout_width="match_parent"
    android:layout_height="200dp"
    android:id="@+id/mycardview"
    card_view:cardUseCompatPadding="true">

    <ListView
        android:layout_width="match_parent"
        android:layout_height="fill_parent"
        android:id="@+id/myListView"
        android:dividerHeight="0.2dp"
        android:overScrollMode="always"
        android:smoothScrollbar="true"
        android:groupIndicator="@null"
        ></ListView>


</android.support.v7.widget.CardView>

</RelativeLayout>

I have tried both true and false for the android:clickable, android:focusable and android:focusableInTouchMode. no luck.

Please help with suggestions to try! Thanks!

EDIT: Before downvoting, please at least leave a comment on why you are downvoting.