我有一项活动，展示了recyclerView以及Native Admob广告。广告正在加载，一切正常，但当有人点击广告时，应用就会崩溃。此外，崩溃不是每次都发生，而是每10次发生一次。
这是日志：
Process: aculix.com.rakshabandhan, PID: 16098
java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.LinearLayout.setOnClickListener(android.view.View$OnClickListener)' on a null object reference
at aculix.com.rakshabandhan.Fragments.OneFragment$2.onItemClick(OneFragment.java:133)
at aculix.com.rakshabandhan.RecyclerItemClickListener.onInterceptTouchEvent(RecyclerItemClickListener.java:36)
at android.support.v7.widget.RecyclerView.dispatchOnItemTouchIntercept(RecyclerView.java:2628)
at android.support.v7.widget.RecyclerView.onInterceptTouchEvent(RecyclerView.java:2674)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2175)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2632)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2321)
at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:416)
at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1808)
at android.app.Activity.dispatchTouchEvent(Activity.java:3065)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:71)
at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:378)
at android.view.View.dispatchPointerEvent(View.java:10244)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4444)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4312)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3859)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3912)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3878)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4005)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3886)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4062)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3859)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3912)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3878)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3886)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3859)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6253)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6227)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6188)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6356)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents(Native Method)
at android.view.InputEventReceiver.consumeBatchedInputEvents(InputEventReceiver.java:176)
答案 0 :(得分：0)
我解决了这个问题。为了处理点击，我使用了另一个类，如下所示。
Reset-Digital Channel 1-Digital
Time [s]
-0.002204 1.0 0.0
-0.001124 0.0 NaN
-0.000000 1.0 NaN
0.000551 0.0 NaN
... ...
-0.001505 NaN 1.0
0.000302 NaN 0.0
0.000932 NaN 1.0
0.002538 NaN 0.0
... ...
然后在片段中，我正在设置点击监听器，如下所示
Reset-Digital Channel 1-Digital
Time [s]
0.000302 NaN 0.0
0.000551 0.0 NaN
0.000932 NaN 1.0
0.002538 NaN 0.0
-0.000000 1.0 NaN
-0.001124 0.0 NaN
-0.001505 NaN 1.0
-0.002204 1.0 0.0
... ...
现在我正在处理适配器内的点击监听器，如下所示，它运行正常。
public class RecyclerItemClickListener implements RecyclerView.OnItemTouchListener {
private OnItemClickListener mListener;
public interface OnItemClickListener {
public void onItemClick(View view, int position);
}
GestureDetector mGestureDetector;
public RecyclerItemClickListener(Context context, OnItemClickListener listener) {
mListener = listener;
mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView view, MotionEvent e) {
View childView = view.findChildViewUnder(e.getX(), e.getY());
if (childView != null && mListener != null && mGestureDetector.onTouchEvent(e)) {
mListener.onItemClick(childView, view.getChildAdapterPosition(childView));
}
return false;
}
@Override
public void onTouchEvent(RecyclerView view, MotionEvent motionEvent) {
}
@Override
public void onRequestDisallowInterceptTouchEvent(boolean disallowIntercept) {
}}