onTouchEvent中的CoordinatorLayout NullPointerException

Question

我得到NullPointerException的onTouchEvent的CoordinatorLayout.

我使用DrawerLayout与CollapsingToolbarLayout支持Android程序兼容性的v23.0.0库.

我的观察是在滚动CollapsingToolbarLayout或点击抽屉项目时随机发生崩溃.

有没有人面临这个问题？任何解决这个例外的工作？

logcat的:

08-22 15:16:34.657: E/AndroidRuntime(27596): java.lang.NullPointerException: Attempt to invoke virtual method 'float android.view.MotionEvent.getX()' on a null object reference
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.view.View.onTouchEvent(View.java:9321)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.support.design.widget.CoordinatorLayout.onTouchEvent(CoordinatorLayout.java:449)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.view.View.dispatchTouchEvent(View.java:8388)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2398)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2158)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.support.v4.widget.DrawerLayout.cancelChildViewTouch(DrawerLayout.java:1491)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.support.v4.widget.DrawerLayout$ViewDragCallback.peekDrawer(DrawerLayout.java:1739)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.support.v4.widget.DrawerLayout$ViewDragCallback.access$000(DrawerLayout.java:1624)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.support.v4.widget.DrawerLayout$ViewDragCallback$1.run(DrawerLayout.java:1630)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.os.Handler.handleCallback(Handler.java:739)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.os.Handler.dispatchMessage(Handler.java:95)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.os.Looper.loop(Looper.java:135)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at android.app.ActivityThread.main(ActivityThread.java:5221)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at java.lang.reflect.Method.invoke(Native Method)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at java.lang.reflect.Method.invoke(Method.java:372)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:898)
08-22 15:16:34.657: E/AndroidRuntime(27596):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:693)
08-22 15:16:35.965: I/Process(27596): Sending signal. PID: 27596 SIG: 9

Answer 1

这适合我. https://code.google.com/p/android/issues/detail?id=183166

@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
    try {
        return super.dispatchTouchEvent(ev);
    } catch (Exception e) {
        return false;
    }
}

Answer 2

根据Kevin Salazar提供的链接,如果您将支持库更新到版本23.0.1,则会修复该错误