Intent的用法总结

Intent用法实例

1.无参数Activity跳转

Intent it = new Intent(Activity.Main.this, Activity2.class); startActivity(it);

2.向下一个Activity传递数据（使用Bundle和Intent.putExtras）
Intent it = new Intent(Activity.Main.this, Activity2.class); Bundle bundle=new Bundle(); bundle.putString("name", "This is from MainActivity!"); it.putExtras(bundle); // it.putExtra(“test”, "shuju”); startActivity(it); // startActivityForResult(it,REQUEST_CODE);  

对于数据的获取可以采用：

Bundle bundle=getIntent().getExtras(); 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）

Intent intent=getIntent(); Bundle bundle2=new Bundle(); bundle2.putString("name", "This is from ShowMsg!"); intent.putExtras(bundle2); setResult(RESULT_OK, intent);  

4.回调上一个Activity的结果处理函数（onActivityResult）

@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); if (requestCode==REQUEST_CODE){ if(resultCode==RESULT_CANCELED) setTitle("cancle"); else if (resultCode==RESULT_OK) { String temp=null; Bundle bundle=data.getExtras(); if(bundle!=null) temp=bundle.getString("name"); setTitle(temp); } } }  

下面是转载来的其他的一些Intent用法实例（转自javaeye） 

显示网页 

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

显示地图 

Uri uri = Uri.parse("geo:38.899533,-77.036476"); 2. Intent it = new Intent(Intent.ACTION_VIEW, uri); 3. startActivity(it); 4. //其他 geo URI 範例 5. //geo:latitude,longitude 6. //geo:latitude,longitude?z=zoom 7. //geo:0,0?q=my+street+address 8. //geo:0,0?q=business+near+city 9. //google.streetview:cbll=lat,lng&cbp=1,yaw,,pitch,zoom&mz=mapZoom  

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); //where startLat, startLng, endLat, endLng are a long with 6 decimals like: 50.123456  

打电话 

Uri uri = Uri.parse("tel:[phone]"); Intent it = new Intent(Intent.ACTION_DIAL, uri); startActivity(it); //直接打电话出去 Uri uri = Uri.parse("tel:[phone]"); Intent it = new Intent(Intent.ACTION_CALL, uri); startActivity(it); //用這個，要在 AndroidManifest.xml 中，加上 //<uses-permission id="android.permission.CALL_PHONE" />  

传送SMS/MMS 

//调用短信程序 Intent it = new Intent(Intent.ACTION_VIEW, uri); it.putExtra("sms_body", "The SMS text"); it.setType("vnd.android-dir/mms-sms"); startActivity(it); //传送消息 Uri uri = Uri.parse("smsto://0800000123"); Intent it = new Intent(Intent.ACTION_SENDTO, uri); it.putExtra("sms_body", "The SMS text"); startActivity(it); //传送 MMS 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);  

传送 Email 

Uri uri = Uri.parse("mailto:[e-mail]"); 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, "[e-mail]"); 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={"[e-mail]"}; 3. String[] ccs={"[e-mail]"}; 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"));  

 

传送附件

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 

Uri uri = Uri.parse("file:///sdcard/song.mp3"); Intent it = new Intent(Intent.ACTION_VIEW, uri); it.setType("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);  

Market 相关

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

显示某个应用的相关信息 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  

发起一个应用程序
ComponentName 两个参数一个是包名 一个是包下的主类 

final Intent intent = new Intent(Intent.ACTION_MAIN, null); intent.addCategory(Intent.CATEGORY_LAUNCHER); final ComponentName cn = new ComponentName("com.android.settings","com.android.settings.fuelgauge.PowerUsageSummary"); intent.setComponent(cn); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity( intent);  

 

Uninstall 应用程序

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

返回桌面

Intent unMyIntent = new Intent(Intent.ACTION_MAIN); unMyIntent.addCategory(Intent.CATEGORY_HOME); startActivity(unMyIntent);  

发邮件 

Uri uri = Uri.parse("mailto:[e-mail]"); Intent it = new Intent(Intent.ACTION_SENDTO, uri);  

发送文件

Intent intent = new Intent(); intent.setAction(Intent.ACTION_SEND); intent.setType(mimeType); intent.putExtra(Intent.EXTRA_STREAM, uri); startActivity(intent); 以上有两个变量需要说明: 1. mimeType: 如果是图片,则为"image/*",如果是音频,则为"audio/*",如果是视频,则为"video/*" 2. uri:如果是直接读取到文件路径并发送,则为Uri.fromFile(new File(filePath)); 如果是从数据库中查循出来的uri,则直接传入即可.  

发起市场程序 

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=pname:org.rabold.android.puzzleblox")); //Uri.parse("market://search?q=pname:org.rabold.android.puzzleblox")); startActivity(intent);  

 

来自：http://qq361119908.javaeye.com/blog/631534