Intent的详细解析以及用法

Intent的详细解析以及用法

     Android的四大组件分别为Activity 、Service、BroadcastReceiver（广播接收器）、ContentProvider（内容提供者），这四种组件是独立的，它们之间可以互相调用，协调工作，最终组成一个真正的Android应用，Intent的中文意思为“意图”，在Android中可以理解为想要做什么，实现activity之间的跳转。

Intent在Android中常见的使用：

显示网页:Uri uri = Uri.parse("http://www.google.com"); 

Intent it   = new Intent(Intent.ACTION_VIEW,uri); 

startActivity(it); 



显示地图:

Uri uri = Uri.parse("geo:38.899533,-77.036476"); 

Intent it = new Intent(Intent.Action_VIEW,uri); 

startActivity(it); 



路径规划:

Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en"); 

Intent it = new Intent(Intent.ACTION_VIEW,URI); 

startActivity(it); 



拨打电话:

调用拨号程序

Uri uri = Uri.parse("tel:xxxxxx"); 

Intent it = new Intent(Intent.ACTION_DIAL, uri);   

startActivity(it);   

Uri uri = Uri.parse("tel.xxxxxx"); 

Intent it =new Intent(Intent.ACTION_CALL,uri); 

要使用这个必须在配置文件中加入<uses-permission id="android.permission.CALL_PHONE" /> 









发送SMS/MMS

调用发送短信的程序



Intent it = new Intent(Intent.ACTION_VIEW); 

it.putExtra("sms_body", "The SMS text"); 

it.setType("vnd.android-dir/mms-sms"); 

startActivity(it);  

 

发送短信

Uri uri = Uri.parse("smsto:0800000123"); 

Intent it = new Intent(Intent.ACTION_SENDTO, uri); 

it.putExtra("sms_body", "The SMS text"); 

startActivity(it);   



发送彩信

Uri uri = Uri.parse("content://media/external/images/media/23"); 

Intent it = new Intent(Intent.ACTION_SEND); 

it.putExtra("sms_body", "some text"); 

it.putExtra(Intent.EXTRA_STREAM, uri); 

it.setType("image/png"); 

startActivity(it); 



发送Email

Uri uri = Uri.parse("mailto:[email protected]"); 

Intent it = new Intent(Intent.ACTION_SENDTO, uri); 

startActivity(it); 

Intent it = new Intent(Intent.ACTION_SEND); 

it.putExtra(Intent.EXTRA_EMAIL, "[email protected]"); 

it.putExtra(Intent.EXTRA_TEXT, "The email body text"); 

it.setType("text/plain"); 

startActivity(Intent.createChooser(it, "Choose Email Client"));   

Intent it=new Intent(Intent.ACTION_SEND);     

String[] tos={"[email protected]"};     

String[] ccs={"[email protected]"};     

it.putExtra(Intent.EXTRA_EMAIL, tos);     

it.putExtra(Intent.EXTRA_CC, ccs);     

it.putExtra(Intent.EXTRA_TEXT, "The email body text");     

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");     

it.setType("message/rfc822");     

startActivity(Intent.createChooser(it, "Choose Email Client")); 



添加附件

Intent it = new Intent(Intent.ACTION_SEND); 

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text"); 

it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3"); 

sendIntent.setType("audio/mp3"); 

startActivity(Intent.createChooser(it, "Choose Email Client")); 



播放多媒体

Intent it = new Intent(Intent.ACTION_VIEW); 

Uri uri = Uri.parse("file:///sdcard/song.mp3"); 

it.setDataAndType(uri, "audio/mp3"); 

startActivity(it); 

Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1"); 

Intent it = new Intent(Intent.ACTION_VIEW, uri); 

startActivity(it);

   

Uninstall 程序

Uri uri = Uri.fromParts("package", strPackageName, null); 

Intent it = new Intent(Intent.ACTION_DELETE, uri); 

startActivity(it); 



Install　程序

Uri installUri = Uri.fromParts("package", "xxx", null); 

returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri); 

//搜索应用 

Uri uri = Uri.parse("market://search?q=pname:pkg_name");   

Intent it = new Intent(Intent.ACTION_VIEW, uri);   

startActivity(it);   

//where pkg_name is the full package path for an application   

//显示指定应用的详细页面（这个好像不支持了，找不到app_id） 

Uri uri = Uri.parse("market://details?id=app_id");   

Intent it = new Intent(Intent.ACTION_VIEW, uri);   

startActivity(it);   

//where app_id is the application ID, find the ID   

//by clicking on your application on Market home   

//page, and notice the ID from the address bar 

打开另一程序

Intent i = new Intent();    

   ComponentName cn = new ComponentName("com.drip.android2",    

                   "com.drip.android2.AndroidSearch");    

         i.setComponent(cn);    

         i.setAction("android.intent.action.MAIN");    

         startActivityForResult(i, RESULT_OK); 

 

打开联系人列表

<1>              

    Intent i = new Intent();    

    i.setAction(Intent.ACTION_GET_CONTENT);    

    i.setType("vnd.android.cursor.item/phone");    

    startActivityForResult(i, REQUEST_TEXT);    

  

   <2>    

   Uri uri = Uri.parse("content://contacts/people");    

   Intent it = new Intent(Intent.ACTION_PICK, uri);    

   startActivityForResult(it, REQUEST_TEXT);    

打开录音机

Intent mi = new Intent(Media.RECORD_SOUND_ACTION);    

         startActivity(mi); 

 

  从gallery选取图片   

Inten t i = new Intent();  

  i.setType("image/*");    

       i.setAction(Intent.ACTION_GET_CONTENT);    

       startActivityForResult(i, 11);  

 

打开照相机

<1>Intent i = new Intent(Intent.ACTION_CAMERA_BUTTON, null);    

          this.sendBroadcast(i);    

    <2>long dateTaken = System.currentTimeMillis();    

         String name = createName(dateTaken) + ".jpg";    

         fileName = folder + name;    

         ContentValues values = new ContentValues();    

         values.put(Images.Media.TITLE, fileName);    

         values.put("_data", fileName);    

         values.put(Images.Media.PICASA_ID, fileName);    

         values.put(Images.Media.DISPLAY_NAME, fileName);    

         values.put(Images.Media.DESCRIPTION, fileName);    

         values.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, fileName);    

         Uri photoUri = getContentResolver().insert(    

                   MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);    

              

         Intent inttPhoto = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);    

         inttPhoto.putExtra(MediaStore.EXTRA_OUTPUT, photoUri);    

         startActivityForResult(inttPhoto, 10);  

  

播放多媒体

Intent it = new Intent(Intent.ACTION_VIEW);    

Uri uri = Uri.parse("file:///sdcard/song.mp3");    

it.setDataAndType(uri, "audio/mp3");    

startActivity(it);    



或者   

Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");      

Intent it = new Intent(Intent.ACTION_VIEW, uri);      

startActivity(it);    

    

或者   

Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");   

returnIt = new Intent(Intent.ACTION_VIEW, playUri);   

发送Email

Uri uri = Uri.parse("mailto:[email protected]");

Intent it = new Intent(Intent.ACTION_SENDTO, uri);

startActivity(it);

 

或者:

Intent intent = new Intent(Intent.ACTION_SEND);

intent.putExtra(Intent.EXTRA_EMAIL, address);

intent.putExtra(Intent.EXTRA_SUBJECT, filename);

intent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + filename)); ;

intent.setType("text/csv");

startActivity(Intent.createChooser(intent, "EMail File"));

 

或者:

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_EMAIL, "[email protected]");

it.putExtra(Intent.EXTRA_TEXT, "The email body text");

it.setType("text/plain");

startActivity(Intent.createChooser(it, "Choose Email Client"));

 

或者:

Intent it=new Intent(Intent.ACTION_SEND);

String[] tos={"[email protected]"};

String[] ccs={"[email protected]"};

it.putExtra(Intent.EXTRA_EMAIL, tos);

it.putExtra(Intent.EXTRA_CC, ccs);

it.putExtra(Intent.EXTRA_TEXT, "The email body text");

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

it.setType("message/rfc822");

startActivity(Intent.createChooser(it, "Choose Email Client"));

 

或者:

Intent it = new Intent(Intent.ACTION_SEND);

it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");

it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");

sendIntent.setType("audio/mp3");

startActivity(Intent.createChooser(it, "Choose Email Client"));



 后台发送短信

注册权限

<uses-permission android:name="android.permission.SEND_SMS" />

代码实现 :

// 获取信息内容

String message ;

// 移动运营商允许每次发送的字节数据有限，我们可以使用Android给我们提供 的短信工具。

if (message != null) {

SmsManager sms = SmsManager.getDefault();

// 如果短信没有超过限制长度，则返回一个长度的List。

List<String> texts = sms.divideMessage(message);

for (String text : texts) {

sms.sendTextMessage(“这里是接收者电话号码”,  “这里是发送者电话号码”,  “这里是短信内容”,  null, null);

}

}

//说明

sms.sendTextMessage(destinationAddress, scAddress, text, sentIntent, deliveryIntent)：

destinationAddress:接收方的手机号码

scAddress:发送方的手机号码

text:信息内容

sentIntent:发送是否成功的回执，

DeliveryIntent:接收是否成功的回执，

 

从google搜索内容

Intent intent = new Intent();    

intent.setAction(Intent.ACTION_WEB_SEARCH);    

intent.putExtra(SearchManager.QUERY,"searchString")    

startActivity(intent);  

APK 安装

Intent intent =new Intenet();

String filepath="/SDCard/XXX.apk";

intent.setDataAndType(Uri.parse("file://" + filepath),"application/vnd.android.package-archive");

starActivity(intent);

//activity之间的跳转

Intent intent=new Intent();

intent.setClass(MainActivity.this, SecondActivity.class);

startActivity(intent);