今天上午解决的Bug，一上午的时间；
log:
11-01 14:49:14.826: E/InputEventReceiver(30810): Exception dispatching input event. 11-01 14:49:14.850: E/AndroidRuntime(30810): FATAL EXCEPTION: main 11-01 14:49:14.850: E/AndroidRuntime(30810): java.lang.NullPointerException 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.AbsListView.obtainView(AbsListView.java:2348) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.ListView.makeAndAddView(ListView.java:1845) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.ListView.fillDown(ListView.java:678) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.ListView.fillGap(ListView.java:642) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.AbsListView.trackMotionScroll(AbsListView.java:5602) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.AbsListView.scrollIfNeeded(AbsListView.java:3346) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.widget.AbsListView.onTouchEvent(AbsListView.java:3699) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.hades.newstyle.customviews.XListView.onTouchEvent(XListView.java:369) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.View.dispatchTouchEvent(View.java:7347) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2352) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2049) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.hades.newstyle.customviews.XListView.dispatchTouchEvent(XListView.java:303) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2358) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2063) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2064) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1513) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.app.Activity.dispatchTouchEvent(Activity.java:2510) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2012) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.View.dispatchPointerEvent(View.java:7527) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3682) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3610) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4862) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4822) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4974) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:179) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:171) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl.doConsumeBatchedInput(ViewRootImpl.java:4942) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.ViewRootImpl$ConsumeBatchedInputRunnable.run(ViewRootImpl.java:4996) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:776) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.Choreographer.doCallbacks(Choreographer.java:579) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.Choreographer.doFrame(Choreographer.java:546) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:762) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.os.Handler.handleCallback(Handler.java:725) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.os.Handler.dispatchMessage(Handler.java:92) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.os.Looper.loop(Looper.java:153) 11-01 14:49:14.850: E/AndroidRuntime(30810): at android.app.ActivityThread.main(ActivityThread.java:5326) 11-01 14:49:14.850: E/AndroidRuntime(30810): at java.lang.reflect.Method.invokeNative(Native Method) 11-01 14:49:14.850: E/AndroidRuntime(30810): at java.lang.reflect.Method.invoke(Method.java:511) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:848) 11-01 14:49:14.850: E/AndroidRuntime(30810): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:615) 11-01 14:49:14.850: E/AndroidRuntime(30810): at dalvik.system.NativeStart.main(Native Method)
跑的时候。APP一 滑动 就自动崩掉。
开始的时候：一直以为是事件分发的问题，Debug 了 好久也没有找到Exception dispatching input event. 中的 java.lang.NullPointerException，在哪里！ 找了一上午 也没有头绪。
之后检查，ListView 适配器中的GetView() 方法的时候，发现，convertView
没有给view 赋值，而且返回的是 view.
解决方案：
View view = convertView;
Code:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO 需要处理新款详情的 ListView布局
Log.i("love", "---getCount() size="+this.getCount());
//
View view = convertView;
if(view == null)
{
view = inflater.inflate(R.layout.fragment_new_fashtion_list_item, parent, false);
}
if(view != null)
{
ViewHolder holder = (ViewHolder)view.getTag();
if(holder == null)
{
holder = new ViewHolder();
holder.newImageView = (ImageView) view.findViewById(R.id.new_fashtion_item_image);
holder.newTitleView = (TextView) view.findViewById(R.id.new_fashtion_item_title);
holder.newShareBtn = (RadioButton) view.findViewById(R.id.new_fashtion_share_btn);
holder.newCollectionBtn = (RadioButton) view.findViewById(R.id.new_fashtion_collection_btn);
holder.newPriceBtn = (RadioButton) view.findViewById(R.id.new_fashtion_price_btn);
view.setTag(holder);
}
// 获取当前的数据实体。
NewStyleItemEntity entity = (NewStyleItemEntity)newStyleLists.get(position);
Log.i("love", "---position="+position);
Log.i("love", "---entity= "+newStyleLists.get(position).getPrice());
holder.newTitleView.setText(newStyleLists.get(position).getTitle());
holder.newPriceBtn.append(newStyleLists.get(position).getPrice());
//图片的下载：
}
return view;
}
Exception dispatching input event. use XlistView
原文地址：http://blog.csdn.net/love_javc_you/article/details/40680701
