保持图像中的GridView选择 [英] Keep image in GridView selected

问题描述

我所做的：

您好，大家好， 我有一个GrindView，我充满了我的数据库。现在，图像显示那里，都是滚动的。但是，当我点击它，他们不保持选中。要查看该图片被选定我建造了一座Toastmessage这表明我，我点击了与onIemClickListner什么图片。

Hello Guys, I've got a GrindView which i filled over my Database. Now the Images shows up there and are scrollable. But when I click on it, they don't keep selected. To see which picture is selected I builded a Toastmessage which shows me what picture i clicked on with the onIemClickListner.

问：

我想，让被点击的图片，选择。所以，你点击的时间在GridView的一个形象，之后就一直选择。 我如何能实现呢？我会很高兴，如果有一个教程或codeSAMPLE，来看看它是如何工作的。

I'd like to let the Clicked Image, selected. So that you click on time on a Image in the GridView and afterwards it keeps selected. How can i realize that? I would be happy if there's a tutorial or a codesample, to see how it works.

的code

这就是我想，只有实际的形象得到不断选择的颜色，但它不到风度工作的正确方法，有时它只是改变了。

This is what i tried that only the actual image gets keeps selected with the colors but it dosn't work the right way, sometimes it just changes..

//Hier wird gemerkt welches bild
        gridview.setOnItemClickListener(new OnItemClickListener() {

        boolean color = false;
            View old;
            View v;

            public void onItemClick(AdapterView<?> parent, View vv, int position, long id) {
                Toast.makeText(SFilterConfigActivity.this, "" + position, Toast.LENGTH_SHORT).show();

                v = vv;

                //gridview.setSelection(position);

               if (color == false){
                v.setBackgroundColor(0xFF00FF00);
                old = v;
                color = true;

               }

               else {
                   old.setBackgroundColor(0x00000000);
                   v.setBackgroundColor(0xFF00FF00);

                   color = false;

               }
            }
        });

THX为你提前anwser

Thx for you anwser in advance

野生动物园

推荐答案

在调用setAdapter（）

After you call setAdapter()

像这样

setSelection（的setSelected，真）

setSelection(setSelected, true)

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