Android中的ViewPager在更新内容的时候报java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0异常
2016-09-08 17:36
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报错如下:
Fatal Exception: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
at java.util.ArrayList.get(ArrayList.java:304)
at android.support.v4.view.ViewPager.performDrag(SourceFile:2162)
at android.support.v4.view.ViewPager.onTouchEvent(SourceFile:2081)
at android.view.View.dispatchTouchEvent(View.java:7348)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2235)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1932)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at com.sothree.slidinguppanel.SlidingUpPanelLayout.dispatchTouchEvent(SourceFile:962)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1974)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1426)
at android.app.Activity.dispatchTouchEvent(Activity.java:2446)
at android.support.v7.internal.view.WindowCallbackWrapper.dispatchTouchEvent(SourceFile:60)
at android.support.v7.internal.view.WindowCallbackWrapper.dispatchTouchEvent(SourceFile:60)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1922)
at android.view.View.dispatchPointerEvent(View.java:7528)
at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3626)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3554)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4818)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4778)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4930)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:179)
at android.os.MessageQueue.nativePollOnce(MessageQueue.java)
at android.os.MessageQueue.next(MessageQueue.java:125)
at android.os.Looper.loop(Looper.java:140)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(NativeStart.java)
解决办法:
public class OnOffViewPager extends ViewPager {
public boolean enabled = true;
public OnOffViewPager(Context context) {
super(context);
}
public OnOffViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if(this.enabled) {
if (getCurrentItem() == 0 && getChildCount() == 0) {
return false;
}
return super.onTouchEvent(ev);
} else {
return false;
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if(this.enabled) {
if (getCurrentItem() == 0 && getChildCount() == 0) {
return false;
}
return super.onInterceptTouchEvent(ev);
} else {
return false;
}
}
Fatal Exception: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
at java.util.ArrayList.get(ArrayList.java:304)
at android.support.v4.view.ViewPager.performDrag(SourceFile:2162)
at android.support.v4.view.ViewPager.onTouchEvent(SourceFile:2081)
at android.view.View.dispatchTouchEvent(View.java:7348)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2235)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1932)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at com.sothree.slidinguppanel.SlidingUpPanelLayout.dispatchTouchEvent(SourceFile:962)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2241)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1946)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1974)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1426)
at android.app.Activity.dispatchTouchEvent(Activity.java:2446)
at android.support.v7.internal.view.WindowCallbackWrapper.dispatchTouchEvent(SourceFile:60)
at android.support.v7.internal.view.WindowCallbackWrapper.dispatchTouchEvent(SourceFile:60)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1922)
at android.view.View.dispatchPointerEvent(View.java:7528)
at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3626)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3554)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4818)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4778)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4930)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:179)
at android.os.MessageQueue.nativePollOnce(MessageQueue.java)
at android.os.MessageQueue.next(MessageQueue.java:125)
at android.os.Looper.loop(Looper.java:140)
at android.app.ActivityThread.main(ActivityThread.java:5299)
at java.lang.reflect.Method.invokeNative(Method.java)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(NativeStart.java)
解决办法:
public class OnOffViewPager extends ViewPager {
public boolean enabled = true;
public OnOffViewPager(Context context) {
super(context);
}
public OnOffViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if(this.enabled) {
if (getCurrentItem() == 0 && getChildCount() == 0) {
return false;
}
return super.onTouchEvent(ev);
} else {
return false;
}
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
if(this.enabled) {
if (getCurrentItem() == 0 && getChildCount() == 0) {
return false;
}
return super.onInterceptTouchEvent(ev);
} else {
return false;
}
}
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