Intent應該算是Android中特有的東西。你可以在Intent中指定程序要執行的動作（比如：view,edit,dial），以及程序執行到該動作時所需要的資料。都指定好后，只要調用startActivity()，Android系統會自動尋找最符合你指定要求的應用程序，并執行該程序。
下面列出幾種Intent的用法
顯示網頁:
- Uri uri = Uri.parse("http://www.google.com");
- Intent it = new Intent(Intent.ACTION_VIEW,uri);
- startActivity(it);
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顯示地圖:
- Uri uri = Uri.parse("geo:38.899533,-77.036476");
- Intent it = new Intent(Intent.Action_VIEW,uri);
- startActivity(it);
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路徑規劃:
- 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);
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撥打電話:
調用撥號程序
- Uri uri = Uri.parse("tel:xxxxxx");
- Intent it = new Intent(Intent.ACTION_DIAL, uri);
- startActivity(it);
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- Uri uri = Uri.parse("tel.xxxxxx");
- Intent it =new Intent(Intent.ACTION_CALL,uri);
- 要使用這個必須在配置文件中加入<uses-permission id="android.permission.CALL_PHONE" />
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發送SMS/MMS
調用發送短信的程序
- Intent it = new Intent(Intent.ACTION_VIEW);
- it.putExtra("sms_body", "The SMS text");
- it.setType("vnd.android-dir/mms-sms");
- startActivity(it);
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發送短信
- Uri uri = Uri.parse("smsto:0800000123");
- Intent it = new Intent(Intent.ACTION_SENDTO, uri);
- it.putExtra("sms_body", "The SMS text");
- startActivity(it);
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發送彩信
- 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);
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發送Email
- Uri uri = Uri.parse("mailto:xxx@abc.com");
- Intent it = new Intent(Intent.ACTION_SENDTO, uri);
- startActivity(it);
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- Intent it = new Intent(Intent.ACTION_SEND);
- it.putExtra(Intent.EXTRA_EMAIL, "me@abc.com");
- it.putExtra(Intent.EXTRA_TEXT, "The email body text");
- it.setType("text/plain");
- startActivity(Intent.createChooser(it, "Choose Email Client"));
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- Intent it=new Intent(Intent.ACTION_SEND);
- String[] tos={"me@abc.com"};
- String[] ccs={"you@abc.com"};
- 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"));
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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"));
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播放多媒體
-
- Intent it = new Intent(Intent.ACTION_VIEW);
- Uri uri = Uri.parse("file:///sdcard/song.mp3");
- it.setDataAndType(uri, "audio/mp3");
- startActivity(it);
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- Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1");
- Intent it = new Intent(Intent.ACTION_VIEW, uri);
- startActivity(it);
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Uninstall 程序
- Uri uri = Uri.fromParts("package", strPackageName, null);
- Intent it = new Intent(Intent.ACTION_DELETE, uri);
- startActivity(it);
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|
uninstall apk
- Uri uninstallUri = Uri.fromParts("package", "xxx", null);
- returnIt = new Intent(Intent.ACTION_DELETE, uninstallUri);
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install apk
- Uri installUri = Uri.fromParts("package", "xxx", null);
- returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri);
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play audio
- Uri playUri = Uri.parse("file:///sdcard/download/everything.mp3");
- returnIt = new Intent(Intent.ACTION_VIEW, playUri);
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- //發送附件
- Intent it = new Intent(Intent.ACTION_SEND);
- it.putExtra(Intent.EXTRA_SUBJECT, "The email subject text");
- it.putExtra(Intent.EXTRA_STREAM, "file:///sdcard/eoe.mp3");
- sendIntent.setType("audio/mp3");
- startActivity(Intent.createChooser(it, "Choose Email Client"));
- //搜索應用
- 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
- //顯示指定應用的詳細頁面（這個好像不支持了，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
/** *//**
* 獲得包安裝Intent
* @param tempFile
* @return
*/
public static Intent getPackageInstallIntent(File tempFile)
{
Uri mPackageURI = Uri.fromFile(tempFile);
Intent in = new Intent();
in.setAction(Intent.ACTION_VIEW);
in.addCategory(Intent.CATEGORY_DEFAULT);
in
.setComponent(new ComponentName(
"com.android.packageinstaller",
"com.android.packageinstaller.PackageInstallerActivity"));
in.setDataAndType(mPackageURI,
"application/vnd.android.package-archive");
in.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
return in;
}
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posted on 2010-02-18 11:23
TiGERTiAN 閱讀(9850)
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