如何避免选择，而在Android的拖动图像画廊 [英] How to avoid selector while dragging image in Gallery in Android

问题描述

我有一系列的照片显示的图像。当用户点击一个，他们被带到不同的看法。
我想给一些反馈给用户，当他们执行的点击，就在视图更改之前。

I have a series of images shown in a Gallery. WHen the user clicks on one, they are taken to a different view. I want to give some feedback to the user when they perform the click, just before the view changes.

因此​​，我定义了一个选择：

I defined a selector thus:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true" android:drawable="@drawable/pic_frame_pressed" />
    <item android:drawable="@drawable/pic_frame" /> <!-- default -->
</selector>

这工作。当用户点击图像上在显示一帧的画廊...

This works. When the user clicks on an image in the gallery a frame is displayed...

但是，它也示出当用户拖动画廊背部和使用图像脱颖而出。

But, it is also shown when the user is dragging the gallery back and fore using an image.

我看了看不同的状态，我可以找到一个选择：

I looked at the different states I could find for a selector:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
    <item
        android:color="hex_color"
        android:state_pressed=["true" | "false"]
        android:state_focused=["true" | "false"]
        android:state_selected=["true" | "false"]
        android:state_checkable=["true" | "false"]
        android:state_checked=["true" | "false"]
        android:state_enabled=["true" | "false"]
        android:state_window_focused=["true" | "false"] />
</selector>

和我想他们也没有找到一个组合，只有当用户在图像上单击射击（选中总是如火灾因为这是在画廊中心的图像）

and I tried them but couldn't find a combination that only fired when the user clicked on the image (e.g. "selected" always fires for the image that is in the center of the Gallery)

我需要一种state_clicked...

I need a kind of "state_clicked"...

推荐答案

我在这里遇到了同样的情况

我发现的唯一的解决办法是处理后台切换自己的OnItemClick事件（这是不优雅：/）：

I face the same situation here
The only solution I found is to handle the background switch myself on the OnItemClick event (which is not elegant :/) :

            mGallery.setOnItemClickListener(new OnItemClickListener(){
            @Override
            public void onItemClick(AdapterView<?> parent, View clickedView, int position, long id) {
                for(int i = 0; i < parent.getChildCount(); i++){
                    parent.getChildAt(i).setBackgroundResource(R.drawable.bg_menu);
                    ((TextView) parent.getChildAt(i)).setTextColor(getResources().getColor(R.color.white));
                }
                clickedView.setBackgroundResource(R.drawable.bg_menu_selected);
                ((TextView) clickedView).setTextColor(getResources().getColor(R.color.dark_blue));
                ((SectionAdapter) mGallery.getAdapter()).setSelected(position);
            }
        });

正如你可以看到我所选择的位置存储我的适配器上，以显示与当他们重绘（失去焦点）正确的布局
项目
我真的很想找到另一种解决办法，但我还不


如果有人得到了它，我会很高兴地听到：D

As you can see I store the selected position on my adapter in order to display the items with the correct layout when they are redraw (lose focus)
I really wanted to find another solution but I don't yet

If anyone got it I'll be pleased to hear :D

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