为GridView添加边框效果，供大家参考，具体内容如下

1.自定义GridView的item样式：

grid_item.xml文件

<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content" > <ImageView android:id="@+id/item_image" android:layout_width="115dp" android:layout_height="115dp" android:padding="8dp" android:background="@drawable/grid_selector" /> </LinearLayout>

2.设置GridView item的背景：
grid_selector.xml文件

<?xml version="1.0" encoding="utf-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_window_focused="false" android:drawable="@drawable/grid_normal" /> <item android:state_selected="true" android:drawable="@drawable/grid_pressed" /> <item android:state_pressed="true" android:drawable="@drawable/grid_pressed" /> </selector>

3.设置GridView的listSelector为透明：

android:listSelector="@android:color/transparent"

4.自定义GridView的adapter：

import java.util.ArrayList; import android.content.Context; import android.graphics.drawable.Drawable; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; public class GridAdapter extends BaseAdapter { private Context mContext = null; private LayoutInflater inflater = null; private ArrayList<Drawable> drawableList = null; public GridAdapter(Context c) { this.mContext = c; this.inflater = LayoutInflater.from(mContext); } public void setDataSource(ArrayList<Drawable> list){ this.drawableList = list; } public int getCount() { if(drawableList != null){ return drawableList.size(); }else{ return 0; } } public Object getItem(int position) { return drawableList.get(position); } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView = new ImageView(mContext); if (convertView == null) { convertView = inflater.inflate(R.layout.grid_item, null); imageView = (ImageView) convertView.findViewById(R.id.item_image); imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE); convertView.setTag(imageView); } else { imageView = (ImageView) convertView.getTag(); } imageView.setImageDrawable(drawableList.get(position)); return convertView; } }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。