需要达到的效果是：点击菜单中选项，添加表情图标，图标放在一个dialog类型的activity中：

首先在manifest中注册这个activity：

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使用GridView布局，显示图标

icon_dialog_activity.xml

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Java文件中，如下使用

1 public class IconDialog extends Activity  {  2     @Override  3     protected void onCreate(Bundle savedInstanceState) {  4         super.onCreate(savedInstanceState);  5         setContentView(R.layout.icon_dialog_activity);  6         //取得GridView对象  7         GridView gridview = (GridView) findViewById(R.id.gridview);          8         //添加元素给gridview  9         gridview.setAdapter(new ImageAdapter(this)); 10         // 设置Gallery的背景 11         gridview.setBackgroundResource(R.drawable.paper_01); 12         //事件监听 13         gridview.setOnItemClickListener(new OnItemClickListener() { 14             public void onItemClick(AdapterView
      parent, View v, int position, long id) 15             { 16                 Toast.makeText(IconDialog.this, " the " + (position + 1) , Toast.LENGTH_SHORT).show(); 17                  18                 Intent resultValue = new Intent(IconDialog.this,MiniNoteConfige.class); 19                 resultValue.putExtra("icon",position); 20                 setResult(RESULT_OK, resultValue); 21                 finish(); 22             }  23         }); 24     } 25      26     public class ImageAdapter extends BaseAdapter{ 27         // 定义Context 28         private Context        mContext; 29         // 定义整型数组 即图片源 30         private Integer[]    mImageIds    = { 31                 R.drawable.clip1, 32                 R.drawable.clip2,  33                 R.drawable.clip3,  34                 R.drawable.clip4, 35                 R.drawable.clip5, 36                 R.drawable.clip6,  37                 R.drawable.clip7, 38                 R.drawable.clip8,  39                 R.drawable.clip9,  40                 R.drawable.clip10, 41                 R.drawable.clip11, 42                 R.drawable.clip12,  43                 R.drawable.clip13,  44                 R.drawable.clip14,  45                 R.drawable.clip15,  46                 R.drawable.clip16,  47                 R.drawable.clip17, 48                 R.drawable.clip18,  49                 R.drawable.clip19,  50                 R.drawable.clip20, 51                 R.drawable.clip21, 52                 R.drawable.clip22,  53                 R.drawable.clip23,  54                 R.drawable.clip24,  55                 R.drawable.clip25,  56                 R.drawable.clip26,  57                 R.drawable.clip27, 58                 R.drawable.clip28 59         }; 60          61         public ImageAdapter(Context c){ 62             mContext = c; 63         } 64  65         // 获取图片的个数 66         public int getCount(){ 67             return mImageIds.length; 68         } 69  70         // 获取图片在库中的位置 71         public Object getItem(int position){ 72             return position; 73         } 74  75  76         // 获取图片ID 77         public long getItemId(int position){ 78             return position; 79         } 80  81         public View getView(int position, View convertView, ViewGroup parent) 82         { 83             ImageView imageView; 84             if (convertView == null){ 85                 // 给ImageView设置资源 86                 imageView = new ImageView(mContext); 87                 // 设置布局 图片120×120显示 88                 imageView.setLayoutParams(new GridView.LayoutParams(85, 85)); 89                 // 设置显示比例类型 90                 imageView.setScaleType(ImageView.ScaleType.FIT_CENTER); 91             }else 92             { 93                 imageView = (ImageView) convertView; 94             } 95  96             imageView.setImageResource(mImageIds[position]); 97             return imageView; 98         } 99     }100 }

跳转界面，显示图标界面

1 Intent intent = new Intent(MiniNoteConfige.this, IconDialog.class);  2 startActivityForResult(intent, RESULT_FOR_ICON);

至于图标返回接收问题，我还没有找到更好的方法，这里就不写了