废话不多说，先上效果图 
因为最近需要做朋友圈功能，所以在此记录一下，其实很多人不明白的一点应该是在图片的排列上面吧，不规则的排列，其实很简单的，就是一个GridView，然而你xml光光写GridView是不行的哦，你们会发现，图片只显示一行，而且这个gridView还可以滑动，是吧，其实我们得重写GridView的onMeasure方法，使其扩大至内容的最大状态。
- 项目类图
内容不多，接下来就一一讲解吧
- PictureGridView.java
重写GridView的onMeasure方法
public class PictureGridView extends GridView { public PictureGridView(Context context) { super(context); // TODO Auto-generated constructor stub } public PictureGridView(Context context, AttributeSet attrs) { super(context, attrs); // TODO Auto-generated constructor stub } public PictureGridView(Context context, AttributeSet attrs, int defStyleAttr) { super(context, attrs, defStyleAttr); // TODO Auto-generated constructor stub } //重写onMeasure里面方法，使界面撑到最大 @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { heightMeasureSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2, MeasureSpec.AT_MOST); super.onMeasure(widthMeasureSpec, heightMeasureSpec); } }- WindowSize.java 用来获取当前屏幕的宽度
public class WindowSize { public static int getWidth(Context context) { WindowManager manager = (WindowManager) context .getSystemService(Context.WINDOW_SERVICE); int width = manager.getDefaultDisplay().getWidth(); return width; } }- MainActivity.java
public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ListView listview = (ListView) findViewById(R.id.listview); listview.setAdapter(new MyListViewAdapter(this)); } } - main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.example.qq.MainActivity" > <ListView android:id="@+id/listview" android:layout_width="match_parent" android:layout_height="match_parent" > </ListView> </RelativeLayout>- MyListViewAdapter.java
class MyListViewAdapter extends BaseAdapter { private Context context; List<String> data; public MyListViewAdapter(Context context) { this.context = context; //生成9条数据 data = new ArrayList<String>(); for (int i = 0; i < 9; i++) { data.add(""); } } @Override public int getCount() { // TODO Auto-generated method stub return 10;// 返回10条数据 } @Override public Object getItem(int arg0) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { holder = new ViewHolder(); convertView = LayoutInflater.from(context).inflate(R.layout.item, parent, false); holder.gridview = (PictureGridView) convertView .findViewById(R.id.gridView); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } int num = position % data.size() + 1;//获取当前的图片数目 int col = 1;//默认列数 Log.i("tag", "num" + num); if (num == 1) { holder.gridview.setNumColumns(1); col = 1; } else if (num == 2 || num == 4) { holder.gridview.setNumColumns(2); col = 2; } else { holder.gridview.setNumColumns(3); col = 3; } holder.gridview.setAdapter(new MyGridViewAdapter(context, num, col)); holder.gridview.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int position, long arg3) { Toast.makeText(context, "" + position, 0).show(); } }); return convertView; } private class ViewHolder { PictureGridView gridview; } }- item.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <ImageView android:layout_width="30dp" android:layout_height="30dp" android:layout_margin="10dp" android:src="@drawable/ic_launcher" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:gravity="center_vertical" android:orientation="vertical" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="信奇哥得永生" android:textSize="15dp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="17:66" android:textColor="#777" android:textSize="13dp" /> </LinearLayout> </LinearLayout> <com.example.qq.PictureGridView android:verticalSpacing="5dp" android:horizontalSpacing="5dp" android:id="@+id/gridView" android:layout_width="match_parent" android:layout_height="wrap_content" /> </LinearLayout>- MyGridViewAdapter.java
public class MyGridViewAdapter extends BaseAdapter { Context context; int num; int col; public MyGridViewAdapter(Context context, int num, int col) { this.context = context; this.num = num; this.col = col; } @Override public int getCount() { // TODO Auto-generated method stub return num; } @Override public Object getItem(int position) { // TODO Auto-generated method stub return null; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(final int position, View convertView, ViewGroup parent) { ImageView img = new ImageView(context); img.setScaleType(ImageView.ScaleType.CENTER_CROP); int width = WindowSize.getWidth(context);// 获取屏幕宽度 Log.i("tag", "width" + width); int height = 0; width = width / col;// 对当前的列数进行设置imgView的宽度 height = width; img.setLayoutParams(new AbsListView.LayoutParams(width, height)); img.setImageResource(R.drawable.user_photo); img.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(context, "" + position, 0).show(); } }); return img; } 好了，代码已经展示出了，技巧大家应该也明白了吧，很简单的，虽然我这做的潦草
但思想还是存在的，即便是加载网络图片，也是这样，先获取图片的url数量，然后来判断该怎么设置GridView的列，设置好列后把列数传给GridViewAdapter，让adapter去设置图片的宽度，为了适应屏幕，我们获取了屏幕的宽度然后除以列数，图片的填充样式也设置了ImageView.ScaleType.CENTER_CROP，为了使图片看起来更美观一点，其实我之前还想到了一点，不知道是不是这样做的，就是我们上传图片的时候，服务端应该生成了两种图片，一种是缩略图，一种是原图，我们qq空间中显示的应该是缩略图，然后点击查看显示原图，那么这个缩略图的宽高按照当前最流行的机型的宽度来设置的话，应该屏幕适应会更好点吧，再加上ImageView设置了ImageView.ScaleType.CENTER_CROP，这样就绝不会产生图片上下带空白的效果了。
create by 2016/3/6 15:51
author wangqi
再啰嗦两句，今天星期天，天气晴，我在淮南师范图书馆6楼敲代码=.=
