我正在制作“Android游戏编程傻瓜”一书，我得到了例外
IllegalArgumentException: UnknownBitmapConfiguration。我一直在寻找可能造成这种情况但却没有运气的地方。我对编程很陌生，所以任何帮助都会受到赞赏。
这是我的WhackAMoleView.java
public WhackAMoleView(Context context, AttributeSet attrs){
super(context,attrs);
SurfaceHolder holder = getHolder();
holder.addCallback(this);
thread = new WhackAMoleThread(holder,context,
new Handler(){
@Override
public void handleMessage(Message m){
}
});
setFocusable(true);
}
public WhackAMoleThread getThread(){
return thread;
}
class WhackAMoleThread extends Thread{
public WhackAMoleThread(SurfaceHolder
surfaceHolder, Context context,
Handler handler){
mySurfaceHolder = surfaceHolder;
myContext = context;
backgroundImg =
BitmapFactory.decodeResource
(context.getResources(), R.drawable.title);
}
@Override
public void run(){
while (running){
Canvas c = null;
try {
c = mySurfaceHolder.lockCanvas(null);
synchronized (mySurfaceHolder){
draw(c);
}
}finally{
if(c != null){
mySurfaceHolder.unlockCanvasAndPost(c);
}
}
}
}
private void draw (Canvas canvas){
try{
canvas.drawBitmap(backgroundImg,0,0,null);
if (!onTitle){
canvas.drawBitmap(mole, mole1x, mole1y,null);
canvas.drawBitmap(mole, mole2x, mole2y, null);
canvas.drawBitmap(mole, mole3x, mole3y, null);
canvas.drawBitmap(mole, mole4x, mole4y, null);
canvas.drawBitmap(mole, mole5x, mole5y, null);
canvas.drawBitmap(mole, mole6x, mole6y, null);
canvas.drawBitmap(mole, mole7x, mole7y, null);
canvas.drawBitmap(mask, (int) 50* drawScaleW,
(int) 450* drawScaleH, null);
canvas.drawBitmap(mask, (int) 150* drawScaleW,
(int) 400* drawScaleH,null);
canvas.drawBitmap(mask, (int) 250* drawScaleW,
(int) 450* drawScaleH,null);
canvas.drawBitmap(mask, (int) 350* drawScaleW,
(int) 400* drawScaleH, null);
canvas.drawBitmap(mask, (int) 450* drawScaleW,
(int) 450* drawScaleH, null);
canvas.drawBitmap(mask, (int) 550* drawScaleW,
(int) 400* drawScaleH,null);
canvas.drawBitmap(mask, (int) 650* drawScaleW,
(int) 450* drawScaleH, null);
}
}catch (Exception e){
}
}
boolean doTouchEvent(MotionEvent event){
synchronized(mySurfaceHolder){
int eventaction = event.getAction();
int X = (int)event.getX();
int Y = (int)event.getY();
switch(eventaction){
case MotionEvent.ACTION_DOWN:
break;
case MotionEvent.ACTION_MOVE:
break;
case MotionEvent.ACTION_UP:
if(onTitle){
backgroundImg=
BitmapFactory.decodeResource
(myContext.getResources(),
R.drawable.background);
backgroundImg =
Bitmap.createScaledBitmap
(backgroundImg, screenW, screenH, true);
mask = BitmapFactory.decodeResource(myContext.getResources(),
R.drawable.mask);
mole = BitmapFactory.decodeResource(myContext.getResources(),
R.drawable.mole);
scaleW = (float) screenW/ (float)
backgroundOriginW;
scaleH = (float) screenH/ (float)
backgroundOriginH;
mask = Bitmap.createScaledBitmap(mask, (int)(mask.getWidth()*scaleW), (int)(mask.getHeight()*scaleH), true);
mole = Bitmap.createScaledBitmap(mole, (int)(mole.getWidth()*scaleW), (int)(mole.getHeight()*scaleH), true);
onTitle = false;
pickActiveMole();
}
break;
}
}
return true;
}
public void setSurfaceSize(int width,
int height){
synchronized (mySurfaceHolder){
screenW = width;
screenH = height;
backgroundImg = Bitmap.createScaledBitmap(
backgroundImg, width,
height, true);
drawScaleW = (float) screenW / 800;
drawScaleH = (float) screenH / 600;
mole1x = (int) (55* drawScaleW);
mole2x = (int) (155* drawScaleW);
mole3x = (int) (255* drawScaleW);
mole4x = (int) (355* drawScaleW);
mole5x = (int) (455* drawScaleW);
mole6x = (int) (555* drawScaleW);
mole7x = (int) (655* drawScaleW);
mole1y = (int) (475* drawScaleH);
mole2y = (int) (425* drawScaleH);
mole3y = (int) (475* drawScaleH);
mole4y = (int) (425* drawScaleH);
mole5y = (int) (475* drawScaleH);
mole6y = (int) (425* drawScaleH);
mole7y = (int) (475* drawScaleH);
}
}
public void setRunning(boolean b){
running = b;
}
private void animateMoles(){
if(activeMole == 1){
if(moleRising){
mole1y -= moleRate;
}else if (moleSinking){
mole1y += moleRate;
}
if(mole1y >= (int) (475* drawScaleH) || moleJustHit){
mole1y = (int) (475* drawScaleH);
pickActiveMole();
}
if(mole1y <= (int) (300* drawScaleH)){
mole1y = (int) (300* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
if(activeMole == 2){
if(moleRising){
mole2y -= moleRate;
}else if (moleSinking){
mole2y += moleRate;
}
if(mole2y >= (int) (425* drawScaleH) || moleJustHit){
mole2y = (int) (425* drawScaleH);
pickActiveMole();
}
if(mole2y <= (int) (250* drawScaleH)){
mole2y = (int) (250* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
if(activeMole == 3){
if(moleRising){
mole3y -= moleRate;
}else if (moleSinking){
mole3y += moleRate;
}
if(mole3y >= (int) (475* drawScaleH) || moleJustHit){
mole3y = (int) (475* drawScaleH);
pickActiveMole();
}
if(mole3y <= (int) (300* drawScaleH)){
mole3y = (int) (300* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
if(activeMole == 4){
if(moleRising){
mole4y -= moleRate;
}else if (moleSinking){
mole4y += moleRate;
}
if(mole4y >= (int) (425* drawScaleH) || moleJustHit){
mole4y = (int) (425* drawScaleH);
pickActiveMole();
}
if(mole4y <= (int) (250* drawScaleH)){
mole4y = (int) (250* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
if(activeMole == 5){
if(moleRising){
mole5y -= moleRate;
}else if (moleSinking){
mole5y += moleRate;
}
if(mole5y >= (int) (475* drawScaleH) || moleJustHit){
mole5y = (int) (475* drawScaleH);
pickActiveMole();
}
if(mole5y <= (int) (300* drawScaleH)){
mole5y = (int) (300* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
if(activeMole == 6){
if(moleRising){
mole6y -= moleRate;
}else if (moleSinking){
mole6y += moleRate;
}
if(mole6y >= (int) (425* drawScaleH) || moleJustHit){
mole6y = (int) (425* drawScaleH);
pickActiveMole();
}
if(mole6y <= (int) (250* drawScaleH)){
mole6y = (int) (250* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
if(activeMole == 7){
if(moleRising){
mole7y -= moleRate;
}else if (moleSinking){
mole7y += moleRate;
}
if(mole7y >= (int) (475* drawScaleH) || moleJustHit){
mole7y = (int) (475* drawScaleH);
pickActiveMole();
}
if(mole7y <= (int) (300* drawScaleH)){
mole7y = (int) (300* drawScaleH);
moleRising = false;
moleSinking = true;
}
}
}
private void pickActiveMole(){
activeMole = new Random().nextInt(7) + 1;
moleRising = true;
moleSinking = false;
}
}
@Override
public boolean onTouchEvent(MotionEvent event){
return thread.doTouchEvent(event);
}
@Override
public void surfaceChanged(SurfaceHolder holder, int
format, int width, int height){
thread.setSurfaceSize(width, height);
}
@Override public void surfaceCreated(SurfaceHolder holder){
thread.setRunning(true);
if(thread.getState() == Thread.State.NEW){
thread.start();
}
}
@Override
public void surfaceDestroyed(SurfaceHolder holder){
thread.setRunning(false);
}
}
我的WhackAMoleActivity
public class WhackAMoleActivity extends Activity{
private static final int TOGGLE_SOUND = 1;
private boolean soundEnabled = true;
private WhackAMoleView myWhackAMoleView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags
(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.whackamole_layout);
myWhackAMoleView = (WhackAMoleView)
findViewById(R.id.mole);
myWhackAMoleView.setKeepScreenOn(true);
}
public boolean onCreateOptionsMenu(Menu menu){
MenuItem toggleSound = menu.add(0, TOGGLE_SOUND,
0,"Toggle Sound");
return true;
}
public boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId()){
case TOGGLE_SOUND:
String soundEnabledText = "Sound On";
if(soundEnabled){
soundEnabled=false;
soundEnabledText="Sound Off";
}else{
soundEnabled = true;
}
Toast.makeText(this, soundEnabledText, Toast.LENGTH_SHORT).show();
break;
}
return false;
}
}
错误消息......
11-29 17:58:51.008: E/InputEventReceiver(21188): Exception dispatching input event.
11-29 17:58:51.008: E/MessageQueue-JNI(21188): Exception in MessageQueue callback: handleReceiveCallback
11-29 17:58:51.048: E/MessageQueue-JNI(21188): java.lang.IllegalArgumentException: unknown bitmap configuration
11-29 17:58:51.048: E/MessageQueue-JNI(21188): at android.graphics.Bitmap.nativeCreate(Native Method)
11-29 17:58:51.048: E/MessageQueue-JNI(21188): at android.graphics.Bitmap.createBitmap(Bitmap.java:929)
11-29 17:58:51.048: E/MessageQueue-JNI(21188): at android.graphics.Bitmap.createBitmap(Bitmap.java:902)
11-29 17:58:51.048: E/MessageQueue-JNI(21188): at android.graphics.Bitmap.createBitmap(Bitmap.java:834)
11-29 17:58:51.048: E/MessageQueue-JNI(21188): at android.graphics.Bitmap.createScaledBitmap(Bitmap.java:710)
11-29 17:58:51.048: E/MessageQueue-JNI(21188): at com.agpfd.whackamole.WhackAMoleView$WhackAMoleThread.doTouchEvent(WhackAMoleView.java:151)
任何帮助将不胜感激，谢谢：）
答案 0 :(得分：0)
嘿，我刚想通了...... 在WhackAMoleThread构造函数中，我从未声明
的值 BackgroundOriginW
BackgroundOriginH
所以当我尝试执行这些行
时scaleW = (float) screenW/ (float)
backgroundOriginW;
scaleH = (float) screenH/ (float)
backgroundOriginH;
他们从未收到
所需的价值mask = Bitmap.createScaledBitmap(mask, (int)(mask.getWidth()*scaleW), (int)(mask.getHeight()*scaleH), true);
mole = Bitmap.createScaledBitmap(mole, (int)(mole.getWidth()*scaleW), (int)(mole.getHeight()*scaleH), true);
也是我的错，我没有发布我的变量声明给你们看，所以你们更难以帮助......
我很感激，但谢谢你们的帮助!!!