Android短信应用开发-优快云博客

android删除短信整个会话

1. getContentResolver().delete( 2. Uri.parse("content://sms/conversations/" + threadid, 3. "_id = " + idelete, null);

[功能]

1. 收信箱：显示所有收到的信息且实时显示即：当有新信息收到能自动刷新显示

2. 发信箱：显示所有已发信息同上

3. 编写新信息：鉴于一些问题打算不自行定义而只通过Intent调用系统的

[原理]

1. 通过目标Uri显示收信箱发信箱目标Uri：content://sms/inbox content://sms/sent

2. 实时刷新：一个办法是开辟thread 定时查询目标Uri 显示之但会带来一些效能影响所以决定使用ContentObserve监听目标Uri 当有变动由ContentObserve通知注册方该Uri:content://sms

3. 注意：ContentObserve不能监听: content://sms/inbox & content://sms/sent 而只能监听content://sms

[代码步骤]

1. 定义SMSObserver 用于监听目标并通过Handle通知注册方

 
   Java 代码 
  
 public  class SMSObserver extends ContentObserver{  
 public  final  static  int SMS_CHANGE= 0 ;  
  
 Handlerhandle; 
 public SMSObserver(Handlerh){  
 super (h);  
 //TODOAuto-generatedconstructorstub   
 handle=h; 
 } 
  
 public  void onChange( boolean selfChange){  
 //TODOAuto-generatedmethodstub   
 super .onChange(selfChange);  
  
 //notifySMSInbox&SMSSent   
 handle.sendEmptyMessage(SMS_CHANGE); 
 } 
  
 } 

2. 定义注册方：SMSInbox 鉴于SMSSent与其原理类似故打算以SMSInbox为例

> 2.1. 显示当前所有收信箱并与ListView适配

    Java代码 
  
 lv=(ListView)findViewById(R.id.list);  
  
 cursor=getContentResolver().query(Uri.parse("content://sms/inbox" ), null , null , null , null );  
  
 adapter=new ItemAdapter( this );  
 lv.setAdapter(adapter); 

> 2.2. 定义Handle 用于接受变动并注册与ContentObserve 当接到通知后查询目标Uri 并刷新显示

    Java代码 
  
 handler= new Handler(){  
 public  void handleMessage(Messagemsg){  
 if (msg.what==SMSObserver.SMS_CHANGE){  
 cursor=getContentResolver().query(Uri.parse("content://sms/inbox" ), null , null , null , null );  
 adapter.notifyDataSetChanged(); 
 } 
  
 } 
 }; 
 sObserver=new SMSObserver(handler);  
 this .getContentResolver().registerContentObserver(Uri.parse( "content://sms" ), true ,sObserver);  
  

> 2.3. SMSInbox 仅用于显示收信箱故定义 SMSDetails extends Activity 用于详细显示 sms信息

- 2.3.1. 定义布局：details.xml

    Java代码 
  
 <?xmlversion= "1.0" encoding= "utf-8" ?>  
 <LinearLayoutxmlns:Android ="http://schemas.android.com/apk/res/android"   
 android:orientation="vertical"   
 android:layout_width="fill_parent"   
 android:layout_height="fill_parent"   
 > 
 <TextView 
 android:id="@+id/detailsNumber"   
 android:layout_width="fill_parent"   
 android:layout_height="wrap_content"   
 /> 
 <TextView 
 android:id="@+id/detailsBody"   
 android:layout_width="fill_parent"   
 android:layout_height="200dip"   
 /> 
 <LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"   
 android:orientation="horizontal"   
 android:layout_width="300dip"   
 android:layout_height="wrap_content"   
 > 
 <Button 
 android:id="@+id/detailsReply"   
 android:layout_width="100dip"   
 android:layout_height="wrap_content"   
 android:layout_gravity="left"   
 android:text="回复"   
 /> 
 <Button 
 android:id="@+id/detailsOK"   
 android:layout_width="100dip"   
 android:layout_height="wrap_content"   
 android:layout_gravity="right"   
 android:text="确定"   
 /> 
 </LinearLayout> 
 </LinearLayout> 

- 2.3.2. 其中2个TextView 分别显示信息地址和正文 2个Button 一个用于关闭当前窗口一个用于短信回复且自动填充收信人地址

    Java代码 
  
 public  class SMSDetails extends Activity{  
  
 TextViewtextNumber,textBody; 
 ButtonbtnOK,btnReply; 
  
 OnClickListenercl; 
  
 Stringaddress,body; 
 /**Calledwhentheactivityisfirstcreated.*/   
 @Override   
 public  void onCreate(BundlesavedInstanceState){  
 super .onCreate(savedInstanceState);  
 setContentView(R.layout.details); 
  
 textNumber=(TextView)findViewById(R.id.detailsNumber); 
 textBody=(TextView)findViewById(R.id.detailsBody); 
  
 btnReply=(Button)findViewById(R.id.detailsReply); 
 btnOK=(Button)findViewById(R.id.detailsOK); 
  
 Intenti=this .getIntent();  
 Bundlebundle=i.getExtras(); 
  
 address=bundle.getString("address" );  
 body=bundle.getString("body" );  
  
 textNumber.setText("from:" +address);  
 textBody.setText("messagebody:\n" +body);  
  
 cl=new OnClickListener(){  
  
 @Override   
 public  void onClick(Viewarg0){  
 //TODOAuto-generatedmethodstub   
 switch (arg0.getId()){  
 case R.id.detailsReply:  
 sendGoNativeNew(address); 
 break ;  
  
 case R.id.detailsOK:  
 sendBack(); 
 break ;  
 } 
 } 
  
 }; 
  
 btnReply.setOnClickListener(cl); 
 btnOK.setOnClickListener(cl); 
 } 
  
 public  void sendGoNativeNew(Stringaddress){  
 //nativesendsmsapp   
 IntentsendIntent=new Intent(Intent.ACTION_SENDTO,Uri.parse( "sms://" ));  
 //autofill"address"   
 sendIntent.putExtra("address" ,address);  
  
 startActivity(sendIntent); 
 } 
  
 public  void sendBack(){  
 Intenti=new Intent();  
 this .setResult(RESULT_OK,i);  
 this .finish();  
 } 
 } 

- 2.3.3. 点击SMSInbox 某项跳转到SMSDetails

    Java代码 
  
 lv.setOnItemClickListener( new OnItemClickListener(){  
 @Override   
 public  void onItemClick(AdapterView<?>arg0,Viewarg1, int arg2,  
 long arg3){  
 //TODOAuto-generatedmethodstub   
 cursor.moveToPosition(arg2); 
 Stringbody=cursor.getString(cursor.getColumnIndexOrThrow("body" )).toString();  
 Stringaddress=cursor.getString(cursor.getColumnIndexOrThrow("address" )).toString();  
  
 Bundleb=new Bundle();  
 b.putString("body" ,body);  
 b.putString("address" ,address);  
  
 Intentintent=new Intent(SMSInbox. this ,SMSDetails. class );  
 intent.putExtras(b); 
  
 startActivity(intent); 
 } 
  
 }); 

- 2.3.4. 其中item.xml 用于定义子项布局

    Xml代码 
  
 <? xml  version = "1.0"  encoding = "utf-8" ?>   
 < LinearLayout  xmlns:android = "http://schemas.android.com/apk/res/android"   
 android:orientation = "vertical"   
 android:layout_width = "fill_parent"   
 android:layout_height = "fill_parent"   
 >   
 < LinearLayout  xmlns:android = "http://schemas.android.com/apk/res/android"   
 android:orientation = "horizontal"   
 android:layout_width = "wrap_content"   
 android:layout_height = "wrap_content"   
 >   
 < ImageView   
 android:id = "@+id/body"   
 android:layout_width = "wrap_content"   
 android:layout_height = "wrap_content"   
 />   
 < TextView   
 android:id = "@+id/num"   
 android:layout_width = "wrap_content"   
 android:layout_height = 

android短信机制