這裡給大家分享我在網上總結出來的一些知識,希望對大家有所幫助 在AndroidManifest.xml註冊ACTION事件 <activity android:name="com.test.app.MainActivity" android:configChanges="orientation|ke ...
這裡給大家分享我在網上總結出來的一些知識,希望對大家有所幫助
在AndroidManifest.xml註冊ACTION事件
<activity android:name="com.test.app.MainActivity" android:configChanges="orientation|keyboardHidden|screenSize" android:label="這裡的名稱會對外顯示" android:launchMode="singleTask" android:screenOrientation="portrait"> //註冊接收分享 <intent-filter> <action android:name="android.intent.action.SEND" /> <category android:name="android.intent.category.DEFAULT" /> //接收分享的文件類型 <data android:mimeType="image/*" /> <data android:mimeType="application/msword" /> <data android:mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document" /> <data android:mimeType="application/vnd.ms-excel" /> <data android:mimeType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" /> <data android:mimeType="application/vnd.ms-powerpoint" /> <data android:mimeType="application/vnd.openxmlformats-officedocument.presentationml.presentation" /> <data android:mimeType="application/pdf" /> <data android:mimeType="text/plain" /> </intent-filter> //註冊預設打開事件,微信、QQ的其他應用打開 <intent-filter> <action android:name="android.intent.action.VIEW" /> <category android:name="android.intent.category.DEFAULT" /> //接收打開的文件類型 <data android:scheme="file" /> <data android:scheme="content" /> <data android:mimeType="image/*" /> <data android:mimeType="application/msword" /> <data android:mimeType="application/vnd.openxmlformats-officedocument.wordprocessingml.document" /> <data android:mimeType="application/vnd.ms-excel" /> <data android:mimeType="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" /> <data android:mimeType="application/vnd.ms-powerpoint" /> <data android:mimeType="application/vnd.openxmlformats-officedocument.presentationml.presentation" /> <data android:mimeType="application/pdf" /> <data android:mimeType="text/plain" /> </intent-filter> </activity>
在用於接收分享的Activity裡面加接收代碼
- 當APP進程在後臺時,會調用Activity的onNewIntent方法
- 當APP進程被殺死時,會調用onCreate方法
所以在兩個方法中都需要監聽事件
@Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); receiveActionSend(intent); } @Override protected void onNewIntent(Intent intent) { super.onNewIntent(intent); receiveActionSend(intent); }
receiveActionSend方法如下
public void receiveActionSend(Intent intent) { String action = intent.getAction(); String type = intent.getType(); //判斷action事件 if (type == null || (!Intent.ACTION_VIEW.equals(action) && !Intent.ACTION_SEND.equals(action))) { return; } //取出文件uri Uri uri = intent.getData(); if (uri == null) { uri = intent.getParcelableExtra(Intent.EXTRA_STREAM); } //獲取文件真實地址 String filePath = UriUtils.getFileFromUri(EdusohoApp.baseApp, uri); if (TextUtils.isEmpty(filePath)) { return; } //業務處理 . . . }
獲取真實路徑getFileFromUri方法
/** * 獲取真實路徑 * * @param context */ public static String getFileFromUri(Context context, Uri uri) { if (uri == null) { return null; } switch (uri.getScheme()) { case ContentResolver.SCHEME_CONTENT: //Android7.0之後的uri content:// URI return getFilePathFromContentUri(context, uri); case ContentResolver.SCHEME_FILE: default: //Android7.0之前的uri file:// return new File(uri.getPath()).getAbsolutePath(); } }
Android7.0之後的uri content:// URI需要對微信、QQ等第三方APP做相容
- 在文件管理選擇本應用打開時,url的值為content://media/external/file/85139
- 在微信中選擇本應用打開時,url的值為 content://com.tencent.mm.external.fileprovider/external/tencent/MicroMsg/Download/111.doc
- 在QQ中選擇本應用打開時,url的值為 content://com.tencent.mobileqq.fileprovider/external_files/storage/emulated/0/Tencent/QQfile_recv/
第一種為系統統一文件資源,能通過系統方法轉化為絕對路徑;
微信、QQ的為fileProvider,只能獲取到文件流,需要先將文件copy到自己的私有目錄。
方法如下:
/** * 從uri獲取path * * @param uri content://media/external/file/109009 * <p> * FileProvider適配 * content://com.tencent.mobileqq.fileprovider/external_files/storage/emulated/0/Tencent/QQfile_recv/ * content://com.tencent.mm.external.fileprovider/external/tencent/MicroMsg/Download/ */ private static String getFilePathFromContentUri(Context context, Uri uri) { if (null == uri) return null; String data = null; String[] filePathColumn = {MediaStore.MediaColumns.DATA, MediaStore.MediaColumns.DISPLAY_NAME}; Cursor cursor = context.getContentResolver().query(uri, filePathColumn, null, null, null); if (null != cursor) { if (cursor.moveToFirst()) { int index = cursor.getColumnIndex(MediaStore.MediaColumns.DATA); if (index > -1) { data = cursor.getString(index); } else { int nameIndex = cursor.getColumnIndex(MediaStore.MediaColumns.DISPLAY_NAME); String fileName = cursor.getString(nameIndex); data = getPathFromInputStreamUri(context, uri, fileName); } } cursor.close(); } return data; } /** * 用流拷貝文件一份到自己APP私有目錄下 * * @param context * @param uri * @param fileName */ private static String getPathFromInputStreamUri(Context context, Uri uri, String fileName) { InputStream inputStream = null; String filePath = null; if (uri.getAuthority() != null) { try { inputStream = context.getContentResolver().openInputStream(uri); File file = createTemporalFileFrom(context, inputStream, fileName); filePath = file.getPath(); } catch (Exception e) { } finally { try { if (inputStream != null) { inputStream.close(); } } catch (Exception e) { } } } return filePath; } private static File createTemporalFileFrom(Context context, InputStream inputStream, String fileName) throws IOException { File targetFile = null; if (inputStream != null) { int read; byte[] buffer = new byte[8 * 1024]; //自己定義拷貝文件路徑 targetFile = new File(context.getExternalCacheDir(), fileName); if (targetFile.exists()) { targetFile.delete(); } OutputStream outputStream = new FileOutputStream(targetFile); while ((read = inputStream.read(buffer)) != -1) { outputStream.write(buffer, 0, read); } outputStream.flush(); try { outputStream.close(); } catch (IOException e) { e.printStackTrace(); } } return targetFile; }