ActivityNotFoundException是Android常见的一个异常，它通常发生在程序无法找到对应的Activity时。由于Android环境较为多样化，实在是需要全方位考虑。
1、最常见的会发生在AndroidManifest.xml文件没有配置需要的Activity路径所导致的，不赘述。
2、第一种情况较为常见，也容易排查。但是近期应用后台异常依然常常报ActivityNotFoundException，因此又调研了一番。跟Intent相关。我们都知道在Android程序中可以使用Intent方便的启动另一个Activity，而Android的SDK中也预置了一些系统级的Activity，常见的有发送短信、发送邮件、拨打电话、打开网页等。但是正如文章开头所说的Android手机种类繁多，在加载可定制的Rom，导致一些机型上面就是没有这些功能，因此如果不把这点考虑进去的话那么，那是必然要报异常的了。真是令人着急！！！下面是一些基本的调用方法，可以放心方便的在程序中使用了:)
public static void startDialer(Context context, String phoneNumber) { try { Intent dial = new Intent(); dial.setAction(Intent.ACTION_DIAL); dial.setData(Uri.parse("tel:" + phoneNumber)); context.startActivity(dial); } catch (ActivityNotFoundException ex) { Log.e(TAG, "Error starting phone dialer intent.", ex); Toast.makeText(context, "Sorry, we couldn't find any app to place a phone call!", Toast.LENGTH_SHORT).show(); } } public static void startSmsIntent(Context context, String phoneNumber) { try { Uri uri = Uri.parse("sms:" + phoneNumber); Intent intent = new Intent(Intent.ACTION_VIEW, uri); intent.putExtra("address", phoneNumber); intent.setType("vnd.android-dir/mms-sms"); context.startActivity(intent); } catch (ActivityNotFoundException ex) { Log.e(TAG, "Error starting sms intent.", ex); Toast.makeText(context, "Sorry, we couldn't find any app to send an SMS!", Toast.LENGTH_SHORT).show(); } } public static void startEmailIntent(Context context, String emailAddress) { try { Intent intent = new Intent(android.content.Intent.ACTION_SEND); intent.setType("plain/text"); intent.putExtra(android.content.Intent.EXTRA_EMAIL, new String[] { emailAddress }); context.startActivity(intent); } catch (ActivityNotFoundException ex) { Log.e(TAG, "Error starting email intent.", ex); Toast.makeText(context, "Sorry, we couldn't find any app for sending emails!", Toast.LENGTH_SHORT).show(); } } public static void startWebIntent(Context context, String url) { try { Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); context.startActivity(intent); } catch (ActivityNotFoundException ex) { Log.e(TAG, "Error starting url intent.", ex); Toast.makeText(context, "Sorry, we couldn't find any app for viewing this url!", Toast.LENGTH_SHORT).show(); } }
附加一些Android基本的Intent
1.从google搜索内容 Intent intent = new Intent(); intent.setAction(Intent.ACTION_WEB_SEARCH); intent.putExtra(SearchManager.QUERY,"searchString") startActivity(intent); 2.浏览网页 Uri uri = Uri.parse("http://www.google.com"); Intent it = new Intent(Intent.ACTION_VIEW,uri); startActivity(it); 3.显示地图 Uri uri = Uri.parse("geo:38.899533,-77.036476"); Intent it = new Intent(Intent.Action_VIEW,uri); startActivity(it); 4.路径规划 Uri uri = Uri.parse("http://maps.google.com/maps?f=dsaddr=startLat%20startLng&daddr=endLat%20endLng&hl=en"); Intent it = new Intent(Intent.ACTION_VIEW,URI); startActivity(it); 5.拨打电话 Uri uri = Uri.parse("tel:xxxxxx"); Intent it = new Intent(Intent.ACTION_DIAL, uri); startActivity(it); 6.调用发短信的程序 Intent it = new Intent(Intent.ACTION_VIEW); it.putExtra("sms_body", "The SMS text"); it.setType("vnd.android-dir/mms-sms"); startActivity(it); 7.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); String body="this is sms demo"; Intent mmsintent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("smsto", number, null)); mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body); mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, true); mmsintent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, true); startActivity(mmsintent); 8.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); StringBuilder sb = new StringBuilder(); sb.append("file://"); sb.append(fd.getAbsoluteFile()); Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.fromParts("mmsto", number, null)); // Below extra datas are all optional. intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_SUBJECT, subject); intent.putExtra(Messaging.KEY_ACTION_SENDTO_MESSAGE_BODY, body); intent.putExtra(Messaging.KEY_ACTION_SENDTO_CONTENT_URI, sb.toString()); intent.putExtra(Messaging.KEY_ACTION_SENDTO_COMPOSE_MODE, composeMode); intent.putExtra(Messaging.KEY_ACTION_SENDTO_EXIT_ON_SENT, exitOnSent); startActivity(intent); 9.发送Email Uri uri = Uri.parse("mailto:xxx@abc.com"); Intent it = new Intent(Intent.ACTION_SENDTO, uri); startActivity(it); 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")); 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")); 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")); 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); Uri uri = Uri.withAppendedPath(MediaStore.Audio.Media.INTERNAL_CONTENT_URI, "1"); Intent it = new Intent(Intent.ACTION_VIEW, uri); startActivity(it); 11.uninstall apk Uri uri = Uri.fromParts("package", strPackageName, null); Intent it = new Intent(Intent.ACTION_DELETE, uri); startActivity(it); 12.install apk Uri installUri = Uri.fromParts("package", "xxx", null); returnIt = new Intent(Intent.ACTION_PACKAGE_ADDED, installUri); 13. 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); 14.从gallery选取图片 Intent i = new Intent(); i.setType("image/*"); i.setAction(Intent.ACTION_GET_CONTENT); startActivityForResult(i, 11); 15. 打开录音机 Intent mi = new Intent(Media.RECORD_SOUND_ACTION); startActivity(mi); 16.显示应用详细列表 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 刚才找app id未果，结果发现用package name也可以 Uri uri = Uri.parse("market://details?id=<packagename>"); 这个简单多了 17寻找应用 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 18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); 19 打开另一程序 Intent i = new Intent(); ComponentName cn = new ComponentName("com.yellowbook.android2", "com.yellowbook.android2.AndroidSearch"); i.setComponent(cn); i.setAction("android.intent.action.MAIN"); startActivityForResult(i, RESULT_OK);