Question

我使用一个名为nexx的库，它是一个视频播放器。我有些崩溃取决于TouchListener。我真的不知道怎么了。这是问题

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.view.View.setOnTouchListener(android.view.View$OnTouchListener)' on a null object reference
       at com.awesome.app.video.NexxPlayerActivity.onPlayerError(Unknown Source:36)
       at tv.nexx.android.player.NexxPlayerAndroidImpl.notifyError(Unknown Source:19)
       at tv.nexx.android.player.NexxPlayerAndroidImpl.onPlayerLogicError(Unknown Source)
       at tv.nexx.android.player.logic.PlayerLogicStateMachine.firePlayerLogicError(Unknown Source:24)
       at tv.nexx.android.player.logic.PlayerLogicStateMachine.onMediaError(Unknown Source:16)
       at tv.nexx.android.player.logic.PlayerLogic$2.onMediaError(Unknown Source:6)
       at tv.nexx.android.player.logic.MediaManager$3.run(Unknown Source:23)
       at tv.nexx.android.player.TransactionGetMedia$1.onFail(Unknown Source:16)
       at tv.nexx.android.player.apiv3.APIManager$7$2.run(Unknown Source:6)
       at android.os.Handler.handleCallback(Handler.java:808)
       at android.os.Handler.dispatchMessage(Handler.java:101)
       at android.os.Looper.loop(Looper.java:166)
       at android.app.ActivityThread.main(ActivityThread.java:7425)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921)

我仅使用OnTouchListener这样：

    @Override
public void onPlayerError(String reason, String details) {
    Log.e(TAG, reason + " " + details);
    this.root.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            finish();
            return true;
        }
    });
    this.root.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });
}

这部分com.awesome.app.video.NexxPlayerActivity.onPlayerError(Unknown Source:36)说它进入了这两个侦听器，但是出了什么问题呢？

Answer 1

在某些情况下，当玩家抛出错误时，您的user_id视图似乎为空。我真的不知道您实现了什么流程，但是您应该在设置create_at之前检查它是否为this.root并采取另一种措施，或者解决其原因null

尝试调用虚拟方法'void android.view.View.setOnTouchListener

1 个答案: