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Intent的几种用法  

2011-08-23 02:19:52|  分类: Others |  标签: |举报 |字号 订阅

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下面列出几种Intent的用法

1. 启动一个新的Activity

  1. Intent it = new Intent(Activity.Main.this, Activity2.class);
  2. startActivity(it);
2. 向下一个Activity传递数据(使用Bundle和Intent.putExtras)
  1. Intent it = new Intent(Activity.Main.this, Activity2.class);
  2. Bundle bundle=new Bundle();
  3. bundle.putString("name", "This is from MainActivity!");
  4. it.putExtras(bundle);      // it.putExtra(“test”, "shuju”);
  5. startActivity(it);            // startActivityForResult(it,REQUEST_CODE);
对于数据 的获取可以采用:
  1. Bundle bundle=getIntent().getExtras();
  2. String name=bundle.getString("name");
3. 向上一个Activity返回结果(使用setResult,针对startActivityForResult(it,REQUEST_CODE)启动 的Activity)
  1.         Intent intent=getIntent();
  2.         Bundle bundle2=new Bundle();
  3.         bundle2.putString("name", "This is from ShowMsg!");
  4.         intent.putExtras(bundle2);
  5.         setResult(RESULT_OK, intent);
4. 回调上一个Activity的结果处理函数(onActivityResult)
  1. @Override
  2.     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  3.         // TODO Auto-generated method stub
  4.         super.onActivityResult(requestCode, resultCode, data);
  5.         if (requestCode==REQUEST_CODE){
  6.             if(resultCode==RESULT_CANCELED)
  7.                   setTitle("cancle");
  8.             else if (resultCode==RESULT_OK) {
  9.                 String temp=null;
  10.                 Bundle bundle=data.getExtras();
  11.                 if(bundle!=null)  temp=bundle.getString("name");
  12.                 setTitle(temp);
  13.             }
  14.         }
  15.     }


显示网页:

  1. Uri uri = Uri.parse("http://www.google.com");
  2. Intent it  = new Intent(Intent.ACTION_VIEW,uri);
  3. startActivity(it);

显示地图:

  1. Uri uri = Uri.parse("geo:38.899533,-77.036476");
  2. Intent it = new Intent(Intent.Action_VIEW,uri);
  3. startActivity(it);

路径规划:

  1. Uri uri = Uri.parse("http://maps.google.com/maps?f=d&saddr=startLat%20startLng&daddr=endLat%20endLng&hl=en");
  2. Intent it = new Intent(Intent.ACTION_VIEW,URI);
  3. startActivity(it);

拨打电话:
调用拨号程序

  1. Uri uri = Uri.parse("tel:xxxxxx");
  2. Intent it = new Intent(Intent.ACTION_DIAL, uri);  
  3. startActivity(it); 
  1. Uri uri = Uri.parse("tel.xxxxxx");
  2. Intent it =new Intent(Intent.ACTION_CALL,uri);
  3. 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

  1. Intent it = new Intent(Intent.ACTION_VIEW);   
  2. it.putExtra("sms_body", "The SMS text");   
  3. it.setType("vnd.android-dir/mms-sms");   
  4. startActivity(it); 

发送短信

  1. Uri uri = Uri.parse("smsto:0800000123");   
  2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);   
  3. it.putExtra("sms_body", "The SMS text");   
  4. startActivity(it); 

发送彩信

  1. Uri uri = Uri.parse("content://media/external/images/media/23");   
  2. Intent it = new Intent(Intent.ACTION_SEND);   
  3. it.putExtra("sms_body", "some text");   
  4. it.putExtra(Intent.EXTRA_STREAM, uri);   
  5. it.setType("image/png");   
  6. startActivity(it);

发送Email


  1. Uri uri = Uri.parse("mailto:xxx@abc.com");
  2. Intent it = new Intent(Intent.ACTION_SENDTO, uri);
  3. startActivity(it);
  1. Intent it = new Intent(Intent.ACTION_SEND);   
  2. it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");   
  3. it.putExtra(Intent.EXTRA_TEXT, "The email body text");   
  4. it.setType("text/plain");   
  5. startActivity(Intent.createChooser(it, "Choose Email Client")); 
  1. Intent it=new Intent(Intent.ACTION_SEND);     
  2. String[] tos={"me@abc.com"};     
  3. String[] ccs={"you@abc.com"};     
  4. it.putExtra(Intent.EXTRA_EMAIL, tos);     
  5. it.putExtra(Intent.EXTRA_CC, ccs);     
  6. it.putExtra(Intent.EXTRA_TEXT, "The email body text");     
  7. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");     
  8. it.setType("message/rfc822");     
  9. startActivity(Intent.createChooser(it, "Choose Email Client"));  

添加附件

  1. Intent it = new Intent(Intent.ACTION_SEND);   
  2. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");   
  3. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/mysong.mp3");   
  4. sendIntent.setType("audio/mp3");   
  5. startActivity(Intent.createChooser(it, "Choose Email Client"));
  1. //发送附件
  2. Intent it = new Intent(Intent.ACTION_SEND);  
  3. it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");  
  4. it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");  
  5. sendIntent.setType("audio/mp3");  
  6. startActivity(Intent.createChooser(it, "Choose Email Client"));

播放多媒体

  1.   
  2. Intent it = new Intent(Intent.ACTION_VIEW);
  3. Uri uri = Uri.parse("file:///sdcard/song.mp3");
  4. it.setDataAndType(uri, "audio/mp3");
  5. startActivity(it);
  1. Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");   
  2. Intent it = new Intent(Intent.ACTION_VIEW, uri);   
  3. startActivity(it);  

Uninstall 程序

  1. Uri uri = Uri.fromParts("package", strPackageName, null);   
  2. Intent it = new Intent(Intent.ACTION_DELETE, uri);   
  3. startActivity(it);

uninstall apk

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

  2. returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);

install apk

  1. Intent intent = new Intent(Intent.ACTION_VIEW);   
  2. intent.setDataAndType(Uri.parse("file:///sdcard/test.apk"), "application/vnd.android.package-archive");   
  3.            
  4. startActivity(intent); 

play audio

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

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

 

  1. //搜索应用
  2. Uri uri = Uri.parse("market://search?q=pname:pkg_name");  
  3. Intent it = new Intent(Intent.ACTION_VIEW, uri);  
  4. startActivity(it);  
  5. //where pkg_name is the full package path for an application  

  6. //显示指定应用的详细页面(这个好像不支持了,找不到app_id)
  7. Uri uri = Uri.parse("market://details?id=app_id");  
  8. Intent it = new Intent(Intent.ACTION_VIEW, uri);  
  9. startActivity(it);  
  10. //where app_id is the application ID, find the ID  
  11. //by clicking on your application on Market home  
  12. //page, and notice the ID from the address bar
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