您好我正在创建ViewFlipper，如下所示。
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@android:color/white"
android:orientation="vertical" >
<ViewFlipper
android:id="@+id/vfShow"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
</ViewFlipper>
</LinearLayout>
处理
等事件ViewFlipperSampleActivity.java
public class ViewFlipperSampleActivity extends Activity {
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private ViewFlipper vf;
private Context mContext;
private final GestureDetector detector = new GestureDetector(
new MyGestureDetector());
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fliper);
mContext = this;
vf = (ViewFlipper) this.findViewById(R.id.vfShow);
vf.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(final View view, final MotionEvent event) {
detector.onTouchEvent(event);
return true;
}
});
vf.addView(addImageView(R.drawable.a));
vf.addView(addImageView(R.drawable.b));
vf.addView(addImageView(R.drawable.c));
vf.addView(addImageView(R.drawable.d));
}
View addImageView(int resId) {
ImageView iv = new ImageView(this);
iv.setImageResource(resId);
return iv;
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
try {
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
vf.setInAnimation(AnimationUtils.loadAnimation(mContext,
R.anim.left_in));
vf.setOutAnimation(AnimationUtils.loadAnimation(mContext,
R.anim.left_out));
vf.showNext();
return true;
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
vf.setInAnimation(AnimationUtils.loadAnimation(mContext,
R.anim.right_in));
vf.setOutAnimation(AnimationUtils.loadAnimation(mContext,
R.anim.right_out));
vf.showPrevious();
return true;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
}
}
现在我迷惑如何使用viewflipper在特定图像上播放声音？请帮我解决这个问题。
由于
更新： -
public class SoundClass {
static MediaPlayer theme1 = null, theme2 = null, theme3 = null,
theme4 = null, theme5 = null, theme6 = null;
static MediaPlayer[] mPlayers = { theme1, theme2, theme3, theme4, theme5,
theme6 };
static Integer[] resources = { R.raw.one, R.raw.two, R.raw.three,
R.raw.four, R.raw.five, R.raw.six, R.raw.seven, R.raw.eight,
R.raw.nine, R.raw.ten, R.raw.eleven, R.raw.twelve, R.raw.thirteen,
R.raw.fourteen, R.raw.fifteen, R.raw.sixteen, R.raw.seventeen,
R.raw.eighteen, R.raw.ninteen, R.raw.twenty };
static Context ctxt = null;
public SoundClass(Context context) {
ctxt = context;
}
public static void createAndPlay(int id, Context context) {
System.out.println(" --- in CreateAndPlay --->>> " + id);
if (id >= 0 && id <= 20)
stopAndRelease(id - 1);
mPlayers[id] = MediaPlayer.create(context, resources[id]);
if (mPlayers[id] != null && !mPlayers[id].isPlaying()) {
mPlayers[id].start();
mPlayers[id].setLooping(false);
}
}
public static void stopAndRelease(int id) {
if (id >= 0) {
// System.out.println(" --- in StopAndRelease if condition --->>> "+id);
if (mPlayers[id] != null && mPlayers[id].isPlaying()) {
// System.out.println("in StopAndRelease 2nd if condition --->>> "+" mPlayers[id] -->> "+mPlayers[id]+" mPlayers[id].isPlaying() -> "+mPlayers[id].isPlaying());
mPlayers[id].stop();
mPlayers[id].reset();
mPlayers[id].release();
mPlayers[id] = null;
}
}
}
public static void mute(int id) {
if (mPlayers[id] != null && mPlayers[id].isPlaying()) {
mPlayers[id].pause();
}
}
public static void unMute(int id) {
if (mPlayers[id] != null && !mPlayers[id].isPlaying()) {
mPlayers[id].start();
}
}
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY) {
try {
// right to left swipe
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
vf_letters.setInAnimation(AnimationUtils.loadAnimation(
mContext, R.anim.left_in));
vf_letters.setOutAnimation(AnimationUtils.loadAnimation(
mContext, R.anim.left_out));
if (count < 20) {
count += 1;
// if (isMute)
SoundClass.createAndPlay(count, LettersScreen.this);
vf_letters.showNext();
} else {
SoundClass.stopAndRelease(count);
count = 0;
// if(isMute)
SoundClass.createAndPlay(count, LettersScreen.this);
}
return true;
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE
&& Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
vf_letters.setInAnimation(AnimationUtils.loadAnimation(
mContext, R.anim.right_in));
vf_letters.setOutAnimation(AnimationUtils.loadAnimation(
mContext, R.anim.right_out));
if (count > 0) {
SoundClass.stopAndRelease(count);
count -= 1;
// if (isMute)
SoundClass.createAndPlay(count, LettersScreen.this);
vf_letters.showPrevious();
} else {
SoundClass.stopAndRelease(count);
count = 20;
// if(isMute)
SoundClass.createAndPlay(count, LettersScreen.this);
vf_letters.showPrevious();
}
return true;
}
} catch (Exception e) {
e.printStackTrace();
}
return false;
}
答案 0 :(得分：2)
这可能不完美，但会提供有关如何实施
的想法class MyGestureDetector extends SimpleOnGestureListener
{
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)
{
try
{
if(Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH)
return false;
// right to left swipe
if(e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)
{
analogflipper.setInAnimation(slideLeftIn);
analogflipper.setOutAnimation(slideLeftOut);
// System.out.println(" Flipping next... ");
if(count < 5)
{
count += 1;
if(isMute)
SoundClass.CreateAndPlay(count, AnalogClockTime.this);
analogflipper.showNext();
}
else
{
SoundClass.StopAndRelease(count);
count = 0;
if(isMute)
SoundClass.CreateAndPlay(count, AnalogClockTime.this);
analogflipper.showNext();
}
/*else
count = 0;*/
}
else if(e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY)
{
analogflipper.setInAnimation(slideRightIn);
analogflipper.setOutAnimation(slideRightOut);
// System.out.println(" Flipping previous... ");
if(count > 0)
{
SoundClass.StopAndRelease(count);
count -= 1;
if(isMute)
SoundClass.CreateAndPlay(count, AnalogClockTime.this);
analogflipper.showPrevious();
}
else
{
SoundClass.StopAndRelease(count);
count = 5;
if(isMute)
SoundClass.CreateAndPlay(count, AnalogClockTime.this);
analogflipper.showPrevious();
}
/*else
count = 4;*/
}
}
catch (Exception e)
{
// System.out.println("Exception...");
}
return false;
}
}
此类处理所有声音创建，播放等任务
public class SoundClass
{
static MediaPlayer theme1 = null, theme2 = null, theme3 = null, theme4 = null, theme5 = null, theme6 = null;
static MediaPlayer[] mPlayers = { theme1, theme2, theme3, theme4, theme5, theme6 };
static Integer[] resources = {R.raw.theme1, R.raw.theme2, R.raw.theme3, R.raw.theme4, R.raw.theme5, R.raw.theme6};
static Context ctxt = null;
public SoundClass(Context context)
{
ctxt = context;
}
public static void createAndPlay(int id, Context context)
{
System.out.println(" --- in CreateAndPlay --->>> "+id);
if(id >= 0 && id <= 5)
StopAndRelease(id - 1);
mPlayers[id] = MediaPlayer.create(context, resources[id]);
if(mPlayers[id] != null && !mPlayers[id].isPlaying())
{
mPlayers[id].start();
mPlayers[id].setLooping(true);
}
}
public static void stopAndRelease(int id)
{
if(id >= 0)
{
// System.out.println(" --- in StopAndRelease if condition --->>> "+id);
if(mPlayers[id] != null && mPlayers[id].isPlaying())
{
// System.out.println("in StopAndRelease 2nd if condition --->>> "+" mPlayers[id] -->> "+mPlayers[id]+" mPlayers[id].isPlaying() -> "+mPlayers[id].isPlaying());
mPlayers[id].stop();
mPlayers[id].reset();
mPlayers[id].release();
mPlayers[id] = null;
}
}
}
public static void mute(int id)
{
if(mPlayers[id] != null && mPlayers[id].isPlaying())
{
mPlayers[id].pause();
}
}
public static void unMute(int id)
{
if(mPlayers[id] != null && !mPlayers[id].isPlaying())
{
mPlayers[id].start();
}
}
}