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起初，我真的知道有不止一個帖子，但沒有幫助我修復錯誤/ misstake。我很抱歉，如果它的轉發，並希望你們可以幫助我擺脫這個錯誤。pointerIndex超出範圍multitouch
11-28 17:36:36.110: W/dalvikvm(8380): threadid=1: thread exiting with uncaught exception (group=0x40a331f8)
11-28 17:36:36.110: E/AndroidRuntime(8380): FATAL EXCEPTION: main
11-28 17:36:36.110: E/AndroidRuntime(8380): java.lang.IllegalArgumentException: pointerIndex out of range
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.MotionEvent.nativeGetAxisValue(Native Method)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.MotionEvent.getX(MotionEvent.java:1974)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.main.TouchEventControler.processJoyPadTouchRelease(TouchEventControler.java:194)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.main.TouchEventControler.processRelease(TouchEventControler.java:237)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.main.TouchEventControler.processTouchEvent(TouchEventControler.java:88)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.main.GameField.onTouchEvent(GameField.java:142)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.View.dispatchTouchEvent(View.java:5546)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1938)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1375)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.app.Activity.dispatchTouchEvent(Activity.java:2364)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1886)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.View.dispatchPointerEvent(View.java:5726)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:2890)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2466)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewRootImpl.processInputEvents(ViewRootImpl.java:845)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2475)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.os.Handler.dispatchMessage(Handler.java:99)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.os.Looper.loop(Looper.java:137)
11-28 17:36:36.110: E/AndroidRuntime(8380): at android.app.ActivityThread.main(ActivityThread.java:4424)
11-28 17:36:36.110: E/AndroidRuntime(8380): at java.lang.reflect.Method.invokeNative(Native Method)
11-28 17:36:36.110: E/AndroidRuntime(8380): at java.lang.reflect.Method.invoke(Method.java:511)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
11-28 17:36:36.110: E/AndroidRuntime(8380): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
11-28 17:36:36.110: E/AndroidRuntime(8380): at dalvik.system.NativeStart.main(Native Method)
我做處理他們這樣，我很高興，它有時運行像我想它，如果它被認爲錯誤不崩潰：
public void processTouchEvent(MotionEvent event) {
// create an action
int action = (event.getActionMasked() & MotionEvent.ACTION_MASK);
// getting pointerindex
int pointerIndex = ((event.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> MotionEvent.ACTION_POINTER_INDEX_SHIFT);
// getting pointer id
//catch invalide
if(pointerIndex == MotionEvent.INVALID_POINTER_ID){
return;
}
int pointerId = event.findPointerIndex(pointerIndex);
// switch case for the action
switch (action) {
case MotionEvent.ACTION_DOWN: // if action down
processHitButtonTouch(event, pointerId);
processJoyPadTouch(event, pointerId);
break;
case MotionEvent.ACTION_POINTER_DOWN: // if pointer down (second
// finger/third)
processHitButtonTouch(event, pointerId);
processJoyPadTouch(event, pointerId);
break;
case MotionEvent.ACTION_UP: // if action up
processRelease(event, pointerId);
case MotionEvent.ACTION_POINTER_UP: // if action up second/third finger
processRelease(event, pointerId);
default:
break;
}
}
在我的那個開關調用methodes我只是獲取觸摸的位置並處理它們。我只是可以把一個getX（pointerIndex）放入一個try catch中，並在出現錯誤時返回。但沒有更好的方法？！
非常感謝所有幫助我已經得到的。
問及：
public void processJoyPadTouchRelease(MotionEvent event, int pointerId) {
int touchPosX = (int) event.getX(pointerId);
int touchPosY = (int) event.getY(pointerId);
if ((//dont freak out here! it's just looking for if the
//touch was inside the Joypad! Nothing more!!
//it's in breckets!
touchPosX > 2 * Config.BLOCKSIZE
&& touchPosX < 4 * Config.BLOCKSIZE
&& touchPosY > 3 * Config.BLOCKSIZE
&& touchPosY < 5 * Config.BLOCKSIZE
// touch up event handled
|| 2 * Config.BLOCKSIZE < touchPosX
&& touchPosX < (Config.BLOCKSIZE * 4)
&& touchPosY > (7 * Config.BLOCKSIZE)
&& touchPosY < (9 * Config.BLOCKSIZE)
// touch down handled
|| (touchPosX < 2 * Config.BLOCKSIZE
&& touchPosY > (5 * Config.BLOCKSIZE)
&& touchPosY < (7 * Config.BLOCKSIZE))
// touch left handled
|| (4 * Config.BLOCKSIZE < touchPosX
&& touchPosX < (Config.BLOCKSIZE * 6)
&& touchPosY > (5 * Config.BLOCKSIZE)
&& touchPosY < 7 * Config.BLOCKSIZE))
//touch right handled
//and the char isnt idle (so it's moving)
&& charac.getStatus() != Status.IDLE)
//THAN do =>>
{
charac.setStatus(Status.IDLE);
joyPad.status = Status.IDLE;
}
}
你可以將它與任何拋出錯誤的大小（）進行比較，並確保它不太大。 – codeMagic