未调用方法onTouchEvent [英] Method onTouchEvent not being called

问题描述

我的方法有问题

@Override
public boolean onTouchEvent(MotionEvent event) {
    return gestureDetector.onTouchEvent(event);
}

从不被调用.任何想法为什么会这样?我正在构建一个Google的API 4.0.3应用程序，并且试图为我的ViewFliper启用滑动.但是，这是行不通的，因为从未调用过触摸.

is never called. Any ideas why is that so? I'm building a google's API 4.0.3 application, and I'm trying to enable swipes for my ViewFliper. However, it can't work because touch is never called.

代码:

 public class MainActivity extends SherlockMapActivity implements ActionBar.TabListener {

那是我的活动的声明.并检测到我已经执行过的刷卡操作:

Thats the declaration of my activity. and to detect swipes i have implemented that:

    SimpleOnGestureListener simpleOnGestureListener = new SimpleOnGestureListener(){

    @Override
    public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {

        float sensitvity = 50;
        if((e1.getX() - e2.getX()) > sensitvity){
            SwipeLeft();
        }else if((e2.getX() - e1.getX()) > sensitvity){
            SwipeRight();
        }

        return true;
    }

};
GestureDetector gestureDetector= new GestureDetector(simpleOnGestureListener);

谢谢.

main.xml:

 <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >

<ViewFlipper
    android:id="@+id/ViewFlipper"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="#ffffff" >

    <include
        android:layout_height="match_parent"
        layout="@layout/mymain" />

    <include layout="@layout/secondmain" />
    <include layout="@layout/thirdmain" />
    <include layout="@layout/fourthmain" />
</ViewFlipper>
</LinearLayout>

Edit2 :我所有包含的布局均实现了滚动视图.滚动可能会处理这些事件并对其进行处理吗?以及如何检测手势?

all of my included layouts have scrollview implemented. Is it possible that scroll takes those events and handles them? And how to detect gestures if so?

推荐答案

我找到了一个完美的解决方案.我实现了新方法:

I found a perfect solution. I implemented new method:

@Override
public boolean dispatchTouchEvent(MotionEvent event) {

    View v = getCurrentFocus();
    boolean ret = super.dispatchTouchEvent(event);

现在一切正常！

我的最终代码:

@Override
public boolean dispatchTouchEvent(MotionEvent event) {
    View v = getCurrentFocus();
    if (v instanceof EditText) {
        View w = getCurrentFocus();
        int scrcoords[] = new int[2];
        w.getLocationOnScreen(scrcoords);
        float x = event.getRawX() + w.getLeft() - scrcoords[0];
        float y = event.getRawY() + w.getTop() - scrcoords[1];
        if (event.getAction() == MotionEvent.ACTION_UP
                && (x < w.getLeft() || x >= w.getRight() || y < w.getTop() || y > w
                        .getBottom())) {

            InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
            imm.hideSoftInputFromWindow(getWindow().getCurrentFocus()
                    .getWindowToken(), 0);
        }
    }
    boolean ret = super.dispatchTouchEvent(event);
    return ret;
}

这篇关于未调用方法onTouchEvent的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！