Android的：简单的GridView，在网格显示文本

问题描述

我下面就关于在GridView Android的教程中的例子，但不是展示形象，我想只是简单的显示使用一个TextView一些文字。事实证明似乎比我想象的更难。它可能看起来这是完全不必要的，它并没有一个有效的用例，但我想这一点，只是让自己熟悉SDK。

I'm following the example on the android tutorial about the GridView, but instead of showing image, i want to just simple show some text using a TextView. it turns out seems to be harder than i thought. it might seems like this is totally unnecessary and it doesn't have a valid use case, but i'm trying this out to just get myself familiar with the sdk.

让我的code是pretty的大致相同的的>，而是使用ImageAdapter，我创建了一个虚拟的适配器类似以下内容：

so my code is pretty much the same as the GridView example in http://developer.android.com/guide/tutorials/views/hello-gridview.html, but instead of using a ImageAdapter, i created a dummy adapter like following:

public class MyAdapter extends BaseAdapter {

    private Context context;
    private String[] texts = {"aaa", "bbb", "ccc", "ddd", "eee", "fff", "eee", "hhh", "iii"};

    public MyAdapter(Context context) {
        this.context = context;
    }

    public int getCount() {
        return 9;
    }

    public Object getItem(int position) {
        return null;
    }

    public long getItemId(int position) {
        return 0;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        TextView tv;
        if (convertView == null) {
            tv = new TextView(context);
            tv.setLayoutParams(new GridView.LayoutParams(85, 85));
        }
        else {
            tv = (TextView) convertView;
        }

            tv.setText(texts[position]);
        return tv;
    }
}

这一切似乎有效的给我，但运行该给我什么在屏幕上。而且也没有错误消息。也有一些可选择/点击（无形）块，如果我点击它们，但是文字是显而易见的未显示。我不知道是我的布局没有了android：文本造成这个问题？还是别的什么？

it all seems valid to me, but running this gives me nothing on the screen. and there's no error message. there are some selectable/clickable (invisible) blocks if i click them, but the text is obvious not shown. i wonder is my layout doesn't have the android:text causing this problem? or anything else?

任何反馈将是AP preciated并感谢您的帮助！

any feedback will be appreciated and thanks for your help!

推荐答案

我不知道这可能是造成你的问题。我跟着你链接到设立你好，GridView控件页面上的一步一步的指示，并用你的code，并能看到的文字。

I am not sure what could be causing your problem. I followed the step by step instructions on the page that you linked to to set up "Hello, GridView", and used your code and was able to see the text.

我改变的唯一的事情是，而不是为ImageAdapter创建一个类我用你的MyAdapter。在活动HelloGridView.java的onCreate我用MyAdapter，而不是ImageAdapter。我没有改变的布局都没有。

The only things I changed was rather than creating a class for ImageAdapter I used your MyAdapter. In the activity HelloGridView.java onCreate I used "MyAdapter" rather than "ImageAdapter". I didn't change the layout at all.

下面是运行您的code时，我所得到的截图。

Here is a Screenshot of what I get when running your code.

这篇关于Android的：简单的GridView，在网格显示文本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！