安卓应用加入分享和其它应用打开列表。QQ,微信,文件管理等等

AndroidManifest.xml

注：我是测试.doc文件所以mimeType=“application/msword”，其它文件可以自行百度mimeType。如果分享和打开列表没有自己的应用就尝试更改mimeType和scheme

<activity android:name="com.example.lwyread.activity.ShareActivity"
            android:allowTaskReparenting="true"
            >
            <intent-filter>
                //其它方式打开
                <action android:name="android.intent.action.VIEW" />
                <category android:name="android.intent.category.DEFAULT"/>
                <category android:name="android.intent.category.BROWSABLE" />
                <data android:scheme="file"/>
                <data android:scheme="content"/>
                <data android:mimeType="application/msword"/>

            </intent-filter>
            <intent-filter>
                //分享
                <action android:name="android.intent.action.SEND"/>
                <category android:name="android.intent.category.DEFAULT"/>
                <category android:name="android.intent.category.BROWSABLE" />

                <!-- 	指定分享类型 -->
                <data android:mimeType="application/msword"/>
            </intent-filter>
        </activity>

Activity中，只测试了微信，QQ，文件管理的打开和分享

  private void init(){
        Intent intent = getIntent();
        String action = intent.getAction();//action
        String type = intent.getType();//类型
        String filePath = "";
        System.out.println(intent);
        if (Intent.ACTION_SEND.equals(action) && type != null) {
            Uri uri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
            //如果是媒体类型需要从数据库获取路径
            filePath = getRealPathFromURI(uri);

        } else if (Intent.ACTION_VIEW.equals(action) && type != null) {
            Uri uri = intent.getData();
            if (uri != null) {
                String scheme = uri.getScheme();
                System.out.println(scheme);
                String host = uri.getHost();
                System.out.println(host);//media或者别的
                String port = uri.getPort() + "";
                System.out.println(port);
                String path = uri.getPath();
                System.out.println(path);
                String query = uri.getQuery();
                System.out.println(query);
                if (host.equals("media")) {
                    filePath = getFilePathFromUri(this, uri);
                } else {
                    filePath = getFilePathFromUri2(this, uri);
                }

            }
        }
        File f = new File(filePath);
        Toast.makeText(this, filePath, Toast.LENGTH_LONG).show();

    }

    /**
     * 微信intent
     * Intent { act=android.intent.action.VIEW dat=content://com.tencent.mm.external.fileprovider/external/tencent/MicroMsg/Download/测试.doc
     * typ=application/msword flg=0x10400001 pkg=com.example.lwyread cmp=com.example.lwyread/.activity.ShareActivity }
     * QQintent
     * Intent { act=android.intent.action.VIEW cat=[android.intent.category.DEFAULT]
     * dat=content://com.tencent.mobileqq.fileprovider/external_files/storage/emulated/0/Android/data/com.tencent.mobileqq/Tencent/QQfile_recv/测试.doc
     * typ=application/msword flg=0x1 pkg=com.example.lwyread cmp=com.example.lwyread/.activity.ShareActivity (has extras) }
     * 文件管理intent
     * Intent { act=android.intent.action.VIEW dat=content://media/external/file/887 typ=application/msword flg=0x1 cmp=com.example.lwyread/.activity.ShareActivity }
     */
    //这种//media/external/file/887
    public static String getFilePathFromUri(Context context, Uri uri) {
        if (null == uri) return null;
        final String scheme = uri.getScheme();
        String data = null;
        if (scheme == null)
            data = uri.getPath();
        else if (ContentResolver.SCHEME_FILE.equals(scheme)) {
            data = uri.getPath();
        } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {
            Cursor cursor = context.getContentResolver().query(uri, new String[]{MediaStore.Images.ImageColumns
                    .DATA}, null, null, null);
            if (null != cursor) {
                if (cursor.moveToFirst()) {
                    int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
                    if (index > -1) {
                        data = cursor.getString(index);
                    }
                }
                cursor.close();
            }
        }
        return data;
    }
    //QQ微信这种//com.tencent.mm.external.fileprovider/external/tencent/MicroMsg/Download/测试.doc
    public static String getFilePathFromUri2(Context context, Uri uri) {
        try {
            List<PackageInfo> packs = context.getPackageManager().getInstalledPackages(PackageManager.GET_PROVIDERS);
            if (packs != null) {
                String fileProviderClassName = FileProvider.class.getName();
                for (PackageInfo pack : packs) {
                    ProviderInfo[] providers = pack.providers;
                    if (providers != null) {
                        for (ProviderInfo provider : providers) {
                            if (uri.getAuthority().equals(provider.authority)) {
                                if (provider.name.equalsIgnoreCase(fileProviderClassName)) {
                                    Class<FileProvider> fileProviderClass = FileProvider.class;
                                    try {
                                        Method getPathStrategy = fileProviderClass.getDeclaredMethod("getPathStrategy", Context.class, String.class);
                                        getPathStrategy.setAccessible(true);
                                        Object invoke = getPathStrategy.invoke(null, context, uri.getAuthority());
                                        if (invoke != null) {
                                            String PathStrategyStringClass = FileProvider.class.getName() + "$PathStrategy";
                                            Class<?> PathStrategy = Class.forName(PathStrategyStringClass);
                                            Method getFileForUri = PathStrategy.getDeclaredMethod("getFileForUri", Uri.class);
                                            getFileForUri.setAccessible(true);
                                            Object invoke1 = getFileForUri.invoke(invoke, uri);
                                            if (invoke1 instanceof File) {
                                                String filePath = ((File) invoke1).getAbsolutePath();
                                                return filePath;
                                            }
                                        }
                                    } catch (NoSuchMethodException e) {
                                        e.printStackTrace();
                                    } catch (InvocationTargetException e) {
                                        e.printStackTrace();
                                    } catch (IllegalAccessException e) {
                                        e.printStackTrace();
                                    } catch (ClassNotFoundException e) {
                                        e.printStackTrace();
                                    }
                                    break;
                                }
                                break;
                            }
                        }
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 通过Uri获取文件在本地存储的真实路径
     */
    private String getRealPathFromURI(Uri contentUri) {
        String[] proj = {MediaStore.MediaColumns.DATA};
        Cursor cursor = getContentResolver().query(contentUri, proj, null, null, null);
        if (cursor.moveToNext()) {
            return cursor.getString(cursor.getColumnIndex(MediaStore.MediaColumns.DATA));
        }
        cursor.close();
        return null;
    }

从网上找到不同教程，自己整合了一下。为自己后续提供方便。