如何改变周围HelloGallery图像边框厚度 [英] How to change border thickness around images in HelloGallery

问题描述

我真的不知道，如果它的边框的厚度，或者需要改变图像周围的空白。我从来没有与风格的工作之前，只是创造了第一次styles.xml和colors.xml文件。我已经改变了背景颜色为红色，使用下面的image_border.xml的code。但我不知道如何改变HelloGallery在图像周围的边框厚度。

也许它不是在这个文件中。但究竟需要的东西在code写入？

 ＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;层列表的xmlns：机器人=htt​​p://schemas.android.com/apk/res/android＆GT;
    ＆LT;项目的android：顶部=1DP机器人：左=1DP
        机器人：右=1DP机器人：底部=1DP＆GT;
        ＆LT;形状机器人：形状=矩形＆GT;
            [固体机器人：色=@色/红/＆GT;
        ＆LT; /形状＆GT;
    ＆LT; /项目＆GT;
＆LT; /层列表＆gt;
 

编辑：答案实际上可能修改code的这一部分的问题，因为我是能够改变边界的颜色的和形象在这里的大小

 公共查看getView（INT位置，查看convertView，
      父母的ViewGroup）{
        ImageView的I =新ImageView的（mContext）;        位图BM = BitmapFactory.de codeFILE（
        FileList.get（位置）的ToString（））;
        i.setImageBitmap（BM）;
        i.setLayoutParams（新Gallery.LayoutParams（160，180））;
        i.setScaleType（ImageView.ScaleType.FIT_XY）;
        i.setBackgroundResource（mGalleryItemBackground）;
        i.setBackgroundColor（Color.BLUE）;
        返回我;
    }
 

解决方案

图像周围的边框其实是背景​​填充：

i.setPadding（1，1，1，1）;

I'm not really sure if it's the thickness of the border or the margin around the image that needs to be changed. I have never worked with styles before, and just created a styles.xml and colors.xml file for the first time. I have changed the background color to Red, using the code below in image_border.xml. But I do not know how to change the border thickness around the images in HelloGallery.

Perhaps it's not in this file. But what exactly needs to be written in the code?

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:top="1dp" android:left="1dp" 
        android:right="1dp" android:bottom="1dp">
        <shape android:shape="rectangle">
            <solid android:color="@color/red" />
        </shape>
    </item>
</layer-list>

Edit: The answer might actually be a matter of modifying this portion of the code, since I was able to change the border color and image size here:

    public View getView(int position, View convertView,
      ViewGroup parent) {
        ImageView i = new ImageView(mContext);

        Bitmap bm = BitmapFactory.decodeFile(
        FileList.get(position).toString());
        i.setImageBitmap(bm);
        i.setLayoutParams(new Gallery.LayoutParams(160, 180));
        i.setScaleType(ImageView.ScaleType.FIT_XY);
        i.setBackgroundResource(mGalleryItemBackground);
        i.setBackgroundColor(Color.BLUE);
        return i;
    }

解决方案

The border around the image actually is background padding:

i.setPadding(1, 1, 1, 1);

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