这里给大家分享我在网上总结出来的一些知识,希望对大家有所帮助

在AndroidManifest.xml注册ACTION事件

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:screenOrientation="portrait">

//注册接收分享

//接收分享的文件类型

//注册默认打开事件,微信、QQ的其他应用打开

//接收打开的文件类型

在用于接收分享的Activity里面加接收代码

当APP进程在后台时,会调用Activity的onNewIntent方法当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:

//Android7.0之后的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/

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

*

* @param uri content://media/external/file/109009

*

* FileProvider适配

* 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;

}

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