这是我的源代码。
/*
* This code is a modification of the Android LunarLander example.
*/
package net.simplifiedcoding.detectoutgoingcalls.view;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.media.MediaPlayer;
import android.net.Uri;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.RotateAnimation;
import net.simplifiedcoding.detectoutgoingcalls.R;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* View that draws, takes keystrokes, etc. for a simple LunarLander game.
* <p/>
* Has a mode which RUNNING, PAUSED, etc. draw() renders the
* ship, and does an invalidate() to prompt another draw() as soon as possible
* by the system.
*/
public class RotaryDialerView extends View {
private float rotorAngle = 0F;
private final Drawable rotorDrawable;
private final int r1 = 50;
private final int r2 = 160;
private double lastFi;
private int startN;
public MediaPlayer mPlayer;
private int width;
private int height;
private boolean soundRotating;
android.media.MediaPlayer.OnCompletionListener soundListener;
private boolean playSound;
MainActivity activity = new MainActivity();
public RotaryDialerView(Context context) {
this(context, null);
soundListener = new android.media.MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer mediaplayer) {
stop();
}
};
}
public RotaryDialerView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public RotaryDialerView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
playSound = false;
startN = -1;
soundRotating = false;
rotorDrawable = context.getResources().getDrawable(R.drawable.dialer);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
int availableWidth = getRight() - getLeft();
int availableHeight = getBottom() - getTop();
int x = availableWidth / 2;
int y = availableHeight / 2;
canvas.save();
rotorDrawable.setBounds(0, 0, rotorDrawable.getIntrinsicWidth(),
rotorDrawable.getIntrinsicHeight());
if (rotorAngle != 0) {
canvas.rotate(rotorAngle, x, y);
}
rotorDrawable.draw(canvas);
canvas.restore();
}
protected void onMeasure(int i, int j) {
height = android.view.View.MeasureSpec.getSize(j);
width = android.view.View.MeasureSpec.getSize(i);
setMeasuredDimension(width, height);
}
@Override
public boolean onTouchEvent(MotionEvent event) {
final float x0 = width / 2;
final float y0 = height / 2;
float x1 = event.getX();
float y1 = event.getY();
float x = x0 - x1;
float y = y0 - y1;
double r = Math.sqrt(x * x + y * y);
double sinfi = y / r;
double fi = Math.toDegrees(Math.asin(sinfi));
if (x1 > x0 && y0 > y1) {
fi = 180D - fi;
} else if (x1 > x0 && y1 > y0) {
fi = 180D - fi;
} else if (x0 > x1 && y1 > y0) {
fi += 360D;
}
boolean isComplete = false;
switch (event.getAction()) {
case MotionEvent.ACTION_MOVE:
Log.e("MotionEvent.ACTION_MOVE", "" + MotionEvent.ACTION_MOVE);
if (r > r1 && r < r2) {
if (!soundRotating) {
soundRotating = true;
playSound(startN);
}
final float angle2 = rotorAngle % 360;
int number2 = Math.round(angle2 - 20) / 30;
rotorAngle += Math.abs(fi - lastFi) + 0.25f;
rotorAngle %= 360F;
lastFi = fi;
if (startN >= 10 && !isComplete) {
isComplete = true;
}
// if (number2 < startN || startN == 0 && !isComplete) {
invalidate();
//}
return false;
}
case MotionEvent.ACTION_DOWN:
// playMusic();
// mPlayer2.pause();
calculateStartN(rotorAngle);
rotorAngle = 0F;
lastFi = fi;
return true;
// }
//return false;
case MotionEvent.ACTION_UP:
//mPlayer2.pause();
soundRotating = false;
final float angle = rotorAngle % 360;
int number = Math.round(angle - 20) / 30;
playSound_2(number);
final float fl22 = Math.round(angle - 20) - number * 30;
Log.e("angle", "" + fl22);
if (number > 0) {
if (number == 10) {
number = 0;
}
// if (fl2 < 8.0 && fl2 > 4.0) {
fireDialListenerEvent(number);
//return true;
//}
}
rotorAngle = 0F;
post(new Runnable() {
public void run() {
float fromDegrees = angle;
Animation anim = new RotateAnimation(fromDegrees, 0, Animation.RELATIVE_TO_SELF, 0.5F, Animation.RELATIVE_TO_SELF, 0.5F);
anim.setInterpolator(AnimationUtils.loadInterpolator(getContext(), android.R.anim.decelerate_interpolator));
anim.setAnimationListener(animListener);
anim.setDuration((long) (angle * 5F));
startAnimation(anim);
// playSound();
// angle = 00;//x0;
}
});
startN = -1;
isComplete = false;
return true;
default:
break;
}
return super.onTouchEvent(event);
}
public interface DialListener {
void onDial(int number);
}
private final List<DialListener> dialListeners = new ArrayList<DialListener>();
public void addDialListener(DialListener listener) {
dialListeners.add(listener);
}
public void removeDialListener(DialListener listener) {
dialListeners.remove(listener);
}
private void fireDialListenerEvent(int number) {
for (DialListener listener : dialListeners) {
listener.onDial(number);
Log.e("position ", "Reached");
}
}
private android.view.animation.Animation.AnimationListener animListener = new android.view.animation.Animation.AnimationListener() {
public void onAnimationEnd(Animation animation) {
activity.stopVibrate();
}
public void onAnimationRepeat(Animation animation) {
}
public void onAnimationStart(Animation animation) {
}
};
public void playSound(int n) {
try {
Log.e("n value is", "" + n);
boolean mStartPlaying = true;
if (mStartPlaying == true) {
mPlayer = new MediaPlayer();
Uri uri = Uri.parse("android.resource://net.simplifiedcoding.detectoutgoingcalls/" + activity.SOUNDS_R[n]);
mPlayer.setOnCompletionListener(soundListener);
mPlayer.setDataSource(getContext(), uri);
mPlayer.prepare();
mPlayer.setLooping(false);
mPlayer.start();
} else {
// stopPlaying();
//rePlay.setText("Replay");
mPlayer.stop();
mPlayer.release();
mPlayer = null;
}
mStartPlaying = !mStartPlaying;
} catch (IOException e) {
Log.e("ERR", "prepare() failed");
}
}
public void playSound_2(int n) {
try {
boolean mStartPlaying = true;
if (mStartPlaying == true) {
mPlayer = new MediaPlayer();
Uri uri = Uri.parse("android.resource://net.simplifiedcoding.detectoutgoingcalls/" + activity.SOUNDS_S[n]);
mPlayer.setOnCompletionListener(soundListener);
mPlayer.setDataSource(getContext(), uri);
mPlayer.prepare();
mPlayer.setLooping(false);
mPlayer.start();
} else {
// stopPlaying();
//rePlay.setText("Replay");
mPlayer.stop();
mPlayer.release();
mPlayer = null;
}
mStartPlaying = !mStartPlaying;
} catch (IOException e) {
Log.e("ERR", "prepare() failed");
}
}
public void stop() {
try {
mPlayer.release();
mPlayer.stop();
return;
}
// Misplaced declaration of an exception variable
catch (Exception mediaplayer) {
return;
}
}
private void calculateStartN(double d) {
if (d >= 0.0D && d < 30D) {
startN = 5;
} else {
if (d >= 30D && d < 60D) {
startN = 4;
return;
}
if (d >= 60D && d < 90D) {
startN = 3;
return;
}
if (d >= 90D && d < 120D) {
startN = 2;
return;
}
if (d >= 120D && d <= 150D) {
startN = 1;
return;
}
if (d >= 210D && d < 240D) {
startN = 0;
return;
}
if (d >= 240D && d < 270D) {
startN = 9;
return;
}
if (d >= 270D && d < 300D) {
startN = 8;
return;
}
if (d >= 300D && d < 330D) {
startN = 7;
return;
}
if (d >= 330D && d <= 360D) {
startN = 6;
return;
}
}
}
}
问题是，当我旋转拨号号码时，它不会在到达该点时弯腰。它会有争议地旋转出来。
这是示例源代码 http://www.ssaurel.com/blog/how-to-create-a-rotary-dialer-application-for-android/ 每件事情都是完美的，但唯一的问题是旋转在到达终点时没有停止