Android 接收微信、QQ其他应用打开，第三方分享

Demo项目->github

在AndroidManifest.xml注册ACTION事件

<activity
    android:name="com.test.app.MainActivity"
    android:configChanges="orientation|keyboardHidden|screenSize"
    android:label="这里的名称会对外显示"
    android:launchMode="singleTask"
    android:exported="true"
    android:screenOrientation="portrait">
    //注册接收分享 
    <intent-filter> 
        <action android:name="android.intent.action.SEND" /> 
        <category android:name="android.intent.category.DEFAULT" />

                //接收分享的文件类型
                <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>
                
    //注册默认打开事件，微信、QQ的其他应用打开
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
                
                //接收打开的文件类型
                <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>

在用于接收分享的Activity里面加接收代码

1. 当APP进程在后台时，会调用Activity的onNewIntent方法
2. 当APP进程被杀死时，会调用onCreate方法

所以在两个方法中都需要监听事件

        @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();

            //判断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);
            }
            
            //获取文件真实地址
            String filePath = UriUtils.getFileFromUri(EdusohoApp.baseApp, uri);
            if (TextUtils.isEmpty(filePath)) {
                return;
            }

            //业务处理
            .
            .
            .
        }

获取真实路径getFileFromUri方法

        /**
         * 获取真实路径
         *
         * @param context
         */
        ```
    public static String getFileFromUri(Context context, Uri uri) {
        if (uri == null) {
            return null;
        }
        switch (uri.getScheme()) {
            case ContentResolver.SCHEME_CONTENT:
                if (isGooglePhotosUri(uri)) {
                    return uri.getLastPathSegment();
                } else if (isMediaDocument(uri)) {
                    // MediaProvider
                    final String docId = DocumentsContract.getDocumentId(uri);
                    final String[] split = docId.split(":");
                    final String type = split[0];
                    Uri contentUri = null;
                    if ("image".equals(type)) {
                        contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                    } else if ("video".equals(type)) {
                        contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                    } else if ("audio".equals(type)) {
                        contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                    }
                    final String selection = "_id=?";
                    final String[] selectionArgs = new String[]{split[1]};

                    return getFilePathFromContentUri(context, contentUri, selection, selectionArgs);
                } else if (isDownloadsDocument(uri)) {
                    // DownloadsProvider
                    final String id = DocumentsContract.getDocumentId(uri);
                    final Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
                    return getFilePathFromContentUri(context, contentUri, null, null);
                }

                return getFilePathFromContentUri(context, uri, null, null);
            case ContentResolver.SCHEME_FILE:
            default:
                //file://
                return new File(uri.getPath()).getAbsolutePath();
        }
    }

Android7.0之后的uri content:// URI需要对微信、QQ等第三方APP做兼容

• 在文件管理选择本应用打开时,url的值为content://media/external/file/85139
• 在微信中选择本应用打开时,url的值为 content://com.tencent.mm.external.fileprovider/external/tencent/MicroMsg/Download/111.doc
• 在QQ中选择本应用打开时,url的值为 content://com.tencent.mobileqq.fileprovider/external_files/storage/emulated/0/Tencent/QQfile_recv/
• content://com.android.providers.downloads.documents
• content://com.android.externalstorage.documents
• content://com.android.providers.media.documents
• content://com.google.android.apps.photos.content

第一种为系统统一文件资源，能通过系统方法转化为绝对路径；
微信、QQ的为fileProvider，只能获取到文件流，需要先将文件copy到自己的私有目录。
方法如下：

/**
 * 从uri获取path 或 拷贝
 */
private static String getFilePathFromContentUri(Context context, Uri uri, String selection, String[] selectionArgs) {
    if (null == uri) return null;
    String data = null;

    String[] filePathColumn = {MediaStore.MediaColumns.DATA, MediaStore.MediaColumns.DISPLAY_NAME};
    Cursor cursor = context.getContentResolver().query(uri, filePathColumn, selection, selectionArgs, null);
    if (null != cursor) {
        if (cursor.moveToFirst()) {
            int index = cursor.getColumnIndex(MediaStore.MediaColumns.DATA);
            if (index > -1) {
                data = cursor.getString(index);
                if (data == null || !fileIsExists(data)) {
                    //可能拿不到真实路径 或 文件不存在  走拷贝流程
                    int nameIndex = cursor.getColumnIndex(MediaStore.MediaColumns.DISPLAY_NAME);
                    String fileName = cursor.getString(nameIndex);
                    data = getPathFromInputStreamUri(context, uri, fileName);
                }
            } else {
                //拷贝一份
                int nameIndex = cursor.getColumnIndex(MediaStore.MediaColumns.DISPLAY_NAME);
                String fileName = cursor.getString(nameIndex);
                data = getPathFromInputStreamUri(context, uri, fileName);
            }
        }
        cursor.close();
    }
    return data;
}

/**
 * 用流拷贝文件一份到自己APP私有目录下
 *
 * @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];
        //自己定义拷贝文件路径
        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;
}

private static boolean isDownloadsDocument(Uri uri) {
    return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}

private static boolean isMediaDocument(Uri uri) {
    return "com.android.providers.media.documents".equals(uri.getAuthority());
}

public static boolean isGooglePhotosUri(Uri uri) {
    return "com.google.android.apps.photos.content".equals(uri.getAuthority());
}

//判断文件是否存在
private static boolean fileIsExists(String filePath) {
    try {
        File f = new File(filePath);
        if (!f.exists()) {
            return false;
        }
    } catch (Exception e) {
        return false;
    }
    return true;
}