1 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 2     android:layout_width="match_parent" 3     android:layout_height="match_parent" 4     android:orientation="horizontal" > 5  6     <LinearLayout 7         android:id="@+id/ll" 8         android:layout_width="wrap_content" 9         android:layout_height="wrap_content"10         android:layout_alignParentRight="true"11         android:gravity="center"12         android:orientation="vertical" >13 14         <ImageView15             android:id="@+id/image_btn"16             android:layout_width="wrap_content"17             android:layout_height="wrap_content"18             android:background="@null"19             android:src="@drawable/blank" />20 21         <Button22             android:id="@+id/select_btn"23             android:layout_width="wrap_content"24             android:layout_height="wrap_content"25             android:layout_below="@id/image_btn"26             android:layout_centerHorizontal="true"27             android:text="选择头像" />28     </LinearLayout>29 30     <TableLayout31         android:layout_width="wrap_content"32         android:layout_height="wrap_content"33         android:layout_toLeftOf="@id/ll"34         android:stretchColumns="1" >35 36         <TableRow>37 38             <TextView android:text="用户名:" />39 40             <EditText />41         </TableRow>42 43         <TableRow>44 45             <TextView android:text="密码:" />46 47             <EditText />48         </TableRow>49 50         <TableRow>51 52             <TextView android:text="确认密码:" />53 54             <EditText />55         </TableRow>56 57         <TableRow>58 59             <TextView android:text="E-mail地址:" />60 61             <EditText />62         </TableRow>63     </TableLayout>64 65 </RelativeLayout>

 1 <GridLayout xmlns:android="http://schemas.android.com/apk/res/android" 2     android:layout_width="match_parent" 3     android:layout_height="match_parent" 4     android:columnCount="4" 5     android:orientation="horizontal" > 6  7     <ImageView 8         android:id="@+id/image_01" 9         android:layout_width="wrap_content"10         android:layout_height="wrap_content"11         android:background="@null"12         android:src="@drawable/img01" />13 14     <ImageView15         android:id="@+id/image_02"16         android:layout_width="wrap_content"17         android:layout_height="wrap_content"18         android:background="@null"19         android:src="@drawable/img02" />20 21     <ImageView22         android:id="@+id/image_03"23         android:layout_width="wrap_content"24         android:layout_height="wrap_content"25         android:background="@null"26         android:src="@drawable/img03" />27 28     <ImageView29         android:id="@+id/image_04"30         android:layout_width="wrap_content"31         android:layout_height="wrap_content"32         android:background="@null"33         android:src="@drawable/img04" />34 35     <ImageView36         android:id="@+id/image_05"37         android:layout_width="wrap_content"38         android:layout_height="wrap_content"39         android:background="@null"40         android:src="@drawable/img05" />41 42     <ImageView43         android:id="@+id/image_06"44         android:layout_width="wrap_content"45         android:layout_height="wrap_content"46         android:background="@null"47         android:src="@drawable/img06" />48 49     <ImageView50         android:id="@+id/image_07"51         android:layout_width="wrap_content"52         android:layout_height="wrap_content"53         android:background="@null"54         android:src="@drawable/img07" />55 56     <ImageView57         android:id="@+id/image_08"58         android:layout_width="wrap_content"59         android:layout_height="wrap_content"60         android:background="@null"61         android:src="@drawable/img08" />62 63     <ImageView64         android:id="@+id/image_09"65         android:layout_width="wrap_content"66         android:layout_height="wrap_content"67         android:background="@null"68         android:src="@drawable/img09" />69 70 </GridLayout>

 1  <application 2         android:allowBackup="true" 3         android:icon="@drawable/ic_launcher" 4         android:label="@string/app_name" 5         android:theme="@style/AppTheme" > 6         <activity 7             android:name=".MainActivity" 8             android:label="@string/app_name" > 9             <intent-filter>10                 <action android:name="android.intent.action.MAIN" />11 12                 <category android:name="android.intent.category.LAUNCHER" />13             </intent-filter>14         </activity>15         <activity 16             android:name=".DialogActivity"17             android:label="选择头像"18             android:theme="@android:style/Theme.Dialog">19             20         </activity>21     </application>

 1 import android.content.Intent; 2 import android.os.Bundle; 3 import android.view.View; 4 import android.view.View.OnClickListener; 5 import android.widget.Button; 6 import android.widget.ImageView; 7  8 public class MainActivity extends LifeCycleActivity { 9 10     Button select;11     ImageView showPic;12 13     public static final int SELECT_PIC = 1;14 15     @Override16     protected void onCreate(Bundle savedInstanceState) {17         super.onCreate(savedInstanceState);18         setContentView(R.layout.activity_main);19 20         select = (Button) findViewById(R.id.select_btn);21         showPic = (ImageView) findViewById(R.id.image_btn);22 23         select.setOnClickListener(new OnClickListener() {24             @Override25             public void onClick(View v) {26                 Intent intent = new Intent(MainActivity.this,27                         DialogActivity.class);28                 startActivityForResult(intent, SELECT_PIC);29             }30         });31 32     }33         @Override34     protected void onActivityResult(int requestCode, int resultCode, Intent data) {35         if (requestCode == SELECT_PIC && resultCode == RESULT_OK) {36             int imgid = data.getIntExtra("image", -1);37             //更换图片38             if(imgid!=-1){39                 showPic.setImageResource(imgid);40             }41         }42     }43 44 }45 46         

 1 import android.content.Intent; 2 import android.os.Bundle; 3 import android.view.View; 4 import android.view.View.OnClickListener; 5 import android.widget.ImageView; 6  7 public class DialogActivity extends LifeCycleActivity { 8  9     ImageView[] iv = new ImageView[9];10     11 //    int[] ids = { R.id.image_01, R.id.image_02, R.id.image_03, R.id.image_04,12 //            R.id.image_05, R.id.image_06, R.id.image_07, R.id.image_08,13 //            R.id.image_09 };14 //    int[] imgId = { R.drawable.img01, R.drawable.img02, R.drawable.img03,15 //            R.drawable.img04, R.drawable.img05, R.drawable.img06,16 //            R.drawable.img07, R.drawable.img08, R.drawable.img09 };17 18     @Override19     protected void onCreate(Bundle savedInstanceState) {20         super.onCreate(savedInstanceState);21         setContentView(R.layout.activity_dialog);22         23         //使用反射24         for (int i = 0; i < iv.length; i++) {25             final int finalI = i+1;26             String name = "image_0"+finalI;27             try {28                 //获取其他类29                 Class cls = R.id.class;30                 //获取类的属性,getField(name)获取属性，getInt(null)获取属性对应的值31                 //null代表的是静态变量，非静态变量需要传递对象32                 int id = cls.getField(name).getInt(null);33                 iv[i] = (ImageView) findViewById(id);34                 iv[i].setOnClickListener(new OnClickListener() {35                     @Override36                     public void onClick(View v) {37                         38                         //返回数据39                         Intent intent = getIntent();40                         Class cls2 = R.drawable.class;41                         try {42                             //内部类使用外部局部变量，需要final43                             int imgid2 = cls2.getField("img0"+finalI).getInt(null);44                             intent.putExtra("image", imgid2);45                             setResult(RESULT_OK, intent);46                             finish();47                         } catch (Exception e) {48                             e.printStackTrace();49                         }50                     }51                 });52                 53             } catch (Exception e) {54                 e.printStackTrace();55             } 56         }57 58 //        for (int i = 0; i < iv.length; i++) {59 //            final int finalI = i;60 //            //给每一个ImageView找到id61 //            iv[i] = (ImageView) findViewById(ids[i]);62 //            //设置点击事件监听63 //            iv[i].setOnClickListener(new OnClickListener() {64 //                @Override65 //                public void onClick(View v) {66 //                    //返回数据67 //                    Intent intent = getIntent();68 //                    //内部类使用外部局部变量，需要final69 //                    intent.putExtra("image", imgId[finalI]);70 //                    setResult(RESULT_OK, intent);71 //                    finish();72 //                }73 //            });74 //        }75     }76 77 }