Question

我有一个list view个按钮，其中每一行都有播放按钮。如果我点击第一个播放按钮它会改变暂停，但如果我按下第二行播放按钮，那么首先将保持暂停状态，但我想如果按下任何一个按钮，那么前一个回到它的播放饱和按钮和点击的按钮更改暂停。请帮忙

      if (position == mPlayingPosition&&equals(subscription_type_user)) {

                        textview_duration_Current.post(mUpdateTime);
                        //pb.setVisibility(View.VISIBLE);
                        Log.d("helyaa", String.valueOf(position));

                        mProgressUpdater.mBarToUpdate = pb;
                        mHandler.postDelayed(mProgressUpdater, 100);
                    } else {
                        Log.d("helnaa", String.valueOf(position));

                        //pb.setVisibility(View.GONE);
                        pb.setProgress(0);
                        textview_duration_Current.setText("");
                        if (mProgressUpdater.mBarToUpdate == pb) {
                            //this progress would be updated, but this is the wrong position

                            mProgressUpdater.mBarToUpdate = null;
                        }

我的列表点击活动

      mainListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View item,
                                int position, long id) {
            Planet planet = listAdapter.getItem(position);
            planet.toggleChecked();
            PlanetViewHolder viewHolder = (PlanetViewHolder) item.getTag();
            //  viewHolder.getCheckBox().setChecked( planet.isChecked() );


            if (planet.isChecked()) {
                Toast.makeText(Main_New.this, "Play", Toast.LENGTH_SHORT).show();
                //start playing item at position
                try {
                    mPlayer.reset();
                    mPlayer.setDataSource(String.valueOf(planet = listAdapter.getItem(position)));

                    mPlayer.prepare();
                    mPlayer.start();
                    //mPlayingPosition = position;
                    Log.d("OnlyPos", String.valueOf(position));



                    // Log.d("Postionof", String.valueOf(mPlayingPosition));

                    //Toast.makeText(this,"Position of"+mPlayingPosition,Toast.LENGTH_SHORT).show();


                    // Updating progress bar
                    //updateProgressBar();

                    //trigger list refresh, this will make progressbar start updating if visible

                } catch (IOException e) {
                    // Log.e( "unable to play: " + planetList.get(position));
                    e.printStackTrace();

                }
            }
            ;

        }
    });

Answer 1

试试这个

保留名为position

#Capture logs from user defined packages (by default logs captured only from "com.worklight" package)
wl.analytics.logs.packages=my.package.com

检查位置
```
BasicFileAttributes
```
getView()更新该变量位置;并执行if (position == selectedPosition) { // change the button color or whatever } else { // keep things in the normal way }调用setOnItemClickListener方法

完成！

Answer 2

设置listView父radioGroup并使用播放/暂停的自定义可绘制图像设置radioButton，如： drawable_state.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/pause"  android:state_checked="false" android:state_focused="true"/>
    <item android:drawable="@drawable/pause" android:state_checked="false" android:state_focused="false"/>
    <item android:drawable="@drawable/play" android:state_checked="true" android:state_focused="true"/>
    <item android:drawable="@drawable/play" android:state_checked="true" android:state_focused="false"/>
</selector>

在radioButton标记

中设置此样式属性

<style name="radionbutton"
        parent="Base.Widget.AppCompat.CompoundButton.RadioButton">
        <item name="android:button">@drawable/drawable_state</item>
        <item name="android:windowIsTranslucent">true</item>
        <item name="android:windowBackground">@android:color/transparent</item>
        <item name="android:windowContentOverlay">@null</item>
        <item name="android:windowNoTitle">true</item>
        <item name="android:windowIsFloating">false</item>

这将解决你的问题

如果单击按钮，则在Listview中更改按钮状态

2 个答案: