IllegalArgumentException: pointerIndex out of range pointerIndex=-1 pointerCount=1

使用PhotoView和ViewPager組合是出問題，具體錯誤如下

java.lang.IllegalArgumentException: pointerIndex out of range pointerIndex=-1 pointerCount=1
                                                                      at android.view.MotionEvent.nativeGetAxisValue(Native Method)
                                                                      at android.view.MotionEvent.getX(MotionEvent.java:2122)
                                                                      at android.support.v4.view.ViewPager.onInterceptTouchEvent(ViewPager.java:2064)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2212)
                                                                      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2671)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2358)
                                                                      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2671)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2358)
                                                                      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2671)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2358)
                                                                      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2671)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2358)
                                                                      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2671)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2358)
                                                                      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2671)
                                                                      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2358)
                                                                      at com.android.internal.policy.DecorView.superDispatchTouchEvent(DecorView.java:447)
                                                                      at com.android.internal.policy.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1871)
                                                                      at android.app.Activity.dispatchTouchEvent(Activity.java:3213)
                                                                      at android.support.v7.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:68)
                                                                      at com.android.internal.policy.DecorView.dispatchTouchEvent(DecorView.java:409)
                                                                      at android.view.View.dispatchPointerEvent(View.java:10232)

報錯是在ViewPager的onInterceptTouchEvent方法中，網上也有查此類錯誤的解決，說是：

=========================

修改frameworks\base\core\jni\android_view_MotionEvent.cpp的android_view_MotionEvent_nativeGetAxisValue方法

註釋掉

if (!validatePointerIndex(env, pointerIndex, pointerCount))
{return 0;｝

    改完後需重新編譯整個系統，然後替換lib庫，重新編譯整個系統一般需要半個多小時，這個方法就比較麻煩了

 

第二種方法是：捕獲IllegalArgumentException（非法參數異常）異常 即如

==============

上爲引文出自：https://blog.csdn.net/eoeandroida/article/details/7954398 點擊打開鏈接

於是乎，自定義View繼承ViewPager重寫onInterceptTouchEvent方法捕獲異常，確實解決了問題：

    @Override
    public boolean onInterceptTouchEvent(MotionEvent event) {
        try {
            return super.onInterceptTouchEvent(event);
        } catch (IllegalArgumentException  e) {
            e.printStackTrace();
        }
        return false ;
    }