所以我正在为Android制作一个木琴应用程序,我遇到了一个问题,我不知道如何正确使用onTouch。现在我可以按下一个图像并播放声音,但我不能同时播放两个声音,也不能用手指向下滑动木琴并播放所有声音,它只播放按下的第一个图像。我知道这是因为onTouch和Multitouch,但我不知道如何做到这一点,我找不到任何相关的示例代码,任何帮助表示赞赏!
这是我的主要活动
public class Xylophone extends Activity {
private Player mSoundManager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_xylophone);
mSoundManager = new Player();
mSoundManager.initSounds(getBaseContext());
mSoundManager.addSound(1, R.raw.note01);
mSoundManager.addSound(2, R.raw.note02);
mSoundManager.addSound(3, R.raw.note03);
mSoundManager.addSound(4, R.raw.note04);
mSoundManager.addSound(5, R.raw.note05);
mSoundManager.addSound(6, R.raw.note06);
mSoundManager.addSound(7, R.raw.note07);
mSoundManager.addSound(8, R.raw.note08);
ImageView img01 = (ImageView) findViewById(R.id.imageView1);
img01.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
mSoundManager.playSound(1);
return false;
}
});
ImageView img02 = (ImageView) findViewById(R.id.imageView2);
img02.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
mSoundManager.playSound(2);
return false;
}
});
这是我的SoundPool活动
public class Player {
private SoundPool mSoundPool;
private HashMap<Integer, Integer> mSoundPoolMap;
private AudioManager mAudioManager;
private Context mContext;
public Player()
{
}
public void initSounds(Context theContext) {
mContext = theContext;
mSoundPool = new SoundPool(8, AudioManager.STREAM_MUSIC, 0);
mSoundPoolMap = new HashMap<Integer, Integer>();
mAudioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
}
public void addSound(int Index,int SoundID)
{
mSoundPoolMap.put(Index, mSoundPool.load(mContext, SoundID, 1));
}
public void playSound(int index) {
int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
mSoundPool.play(mSoundPoolMap.get(index), streamVolume, streamVolume, 1, 0, 1f);
}
public void playLoopedSound(int index) {
int streamVolume = mAudioManager.getStreamVolume(AudioManager.STREAM_MUSIC);
mSoundPool.play(mSoundPoolMap.get(index), streamVolume, streamVolume, 1, -1, 1f);
}
}
这是我的布局
<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" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerVertical="true"
android:orientation="horizontal" >
<ImageView
android:id="@+id/imageView1"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:adjustViewBounds="true"
android:cropToPadding="false"
android:scaleType="fitXY"
android:src="@drawable/button01" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:scaleType="fitXY"
android:src="@drawable/button02" />
答案 0 :(得分:1)
您必须尝试的不是覆盖每个按钮的onTouch方法。
相反,在您的主要活动中,让它实现OnTouchListener。
然后,当然,您需要实现/覆盖OnTouchListener的方法。所以现在,如果您将主视图和/或每个按钮(自己看看哪个有效!)注册到OnTouchListener,您将获得所有触摸(多点触摸)。
查看MotionEvent课程了解更多详情
public class Xylophone extends Activity implements onTouchLister{
public static final String TAG = "Xylophone";
@Override
public void onCreate(Bundle savedInstanceState) {
/*Either have your parent view register THIS (Xylophone) as its listener, or have each button register THIS(Xylophone) as its listener.*/
yourParentView.setOnTouchListener(this);
//or
img02.setOnTouchListener(this);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
Log.i(TAG, "ID:" + Integer.toString(v.getId()));
Log.i(TAG, "Pointer count: " + event.getPointerCount());
Log.i(TAG, "Action: " + event.getActionMasked());
Log.i(TAG, "Action index: " + event.getActionIndex());
}