我可以用这个代码打开画廊，
Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent, "Select Video"), PICK_VIDEO_REQUEST );
它在三星 Galaxy S5 上运行良好。但在某些手机中，图像会与视频一起显示。
我需要对代码进行哪些更改才能打开图库以显示仅视频？
返回结果时如何获取所选视频的真实路径？
【问题讨论】：
这是从图库中选择后获取视频路径的完整代码。
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Video"),REQUEST_TAKE_GALLERY_VIDEO);
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == REQUEST_TAKE_GALLERY_VIDEO) {
Uri selectedImageUri = data.getData();
// OI FILE Manager
filemanagerstring = selectedImageUri.getPath();
// MEDIA GALLERY
selectedImagePath = getPath(selectedImageUri);
if (selectedImagePath != null) {
Intent intent = new Intent(HomeActivity.this,
VideoplayAvtivity.class);
intent.putExtra("path", selectedImagePath);
startActivity(intent);
}
}
}
}
// UPDATED!
public String getPath(Uri uri) {
String[] projection = { MediaStore.Video.Media.DATA };
Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
if (cursor != null) {
// HERE YOU WILL GET A NULLPOINTER IF CURSOR IS NULL
// THIS CAN BE, IF YOU USED OI FILE MANAGER FOR PICKING THE MEDIA
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
【讨论】：
MediaStore.Video.Media.DATA
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent , SELECT_VIDEO);
【讨论】：
你会从这个方法getPath得到真正的Path
public static String getPath(final Context context, final Uri uri) {
final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
// DocumentProvider
if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
final String docId = DocumentsContract.getDocumentId(uri);
final String[] split = docId.split(":");
final String type = split[0];
if ("primary".equalsIgnoreCase(type)) {
return Environment.getExternalStorageDirectory() + "/" + split[1];
}
// TODO handle non-primary volumes
}
// DownloadsProvider
else if (isDownloadsDocument(uri)) {
final String id = DocumentsContract.getDocumentId(uri);
final Uri contentUri = ContentUris.withAppendedId(
Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));
return getDataColumn(context, contentUri, null, null);
}
// MediaProvider
else if (isMediaDocument(uri)) {
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 getDataColumn(context, contentUri, selection, selectionArgs);
}
}
// MediaStore (and general)
else if ("content".equalsIgnoreCase(uri.getScheme())) {
return getDataColumn(context, uri, null, null);
}
// File
else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
/**
* Get the value of the data column for this Uri. This is useful for
* MediaStore Uris, and other file-based ContentProviders.
*
* @param context The context.
* @param uri The Uri to query.
* @param selection (Optional) Filter used in the query.
* @param selectionArgs (Optional) Selection arguments used in the query.
* @return The value of the _data column, which is typically a file path.
*/
public static String getDataColumn(Context context, Uri uri, String selection,
String[] selectionArgs) {
Cursor cursor = null;
final String column = "_data";
final String[] projection = {
column
};
try {
cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
null);
if (cursor != null && cursor.moveToFirst()) {
final int column_index = cursor.getColumnIndexOrThrow(column);
return cursor.getString(column_index);
}
} finally {
if (cursor != null)
cursor.close();
}
return null;
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is ExternalStorageProvider.
*/
public static boolean isExternalStorageDocument(Uri uri) {
return "com.android.externalstorage.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is DownloadsProvider.
*/
public static boolean isDownloadsDocument(Uri uri) {
return "com.android.providers.downloads.documents".equals(uri.getAuthority());
}
/**
* @param uri The Uri to check.
* @return Whether the Uri authority is MediaProvider.
*/
public static boolean isMediaDocument(Uri uri) {
return "com.android.providers.media.documents".equals(uri.getAuthority());
}
public static MultipartBody.Part getMultiPartBody(String key, String mMediaUrl) {
if (mMediaUrl != null) {
File file = new File(mMediaUrl);
RequestBody requestFile = RequestBody.create(MediaType.parse("multipart/form-data"), file);
return MultipartBody.Part.createFormData(key, file.getName(), requestFile);
} else {
return MultipartBody.Part.createFormData(key, "");
}
}
}
【讨论】：
以下代码对我有用：
Intent videoPickIntent = new Intent(Intent.ACTION_PICK);
videoPickIntent.setType("video/*");
TheActivity.startActivityForResult(Intent.createChooser(videoPickIntent, "Please pick a video"), PickIntroductionVideo);
在 onActivityResult 中：
if (requestCode != PickIntroductionVideo)
return;
if (resultCode != Activity.RESULT_OK)
return true;
String pickedVideoUrl = FarayanUtility.getRealPathFromUri(getContext(), data.getData());
方法FarayanUtility.getRealPathFromUri是：
public static String getRealPathFromUri(Context context, Uri contentUri) {
Cursor cursor = null;
try {
String[] proj = {MediaStore.Images.Media.DATA};
cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} finally {
if (cursor != null) {
cursor.close();
}
}
}
【讨论】：
使用这个
Intent intent = new Intent (Intent.ACTION_PICK,MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
intent.setType("video/*");
startActivityForResult(Intent.createChooser(intent,"Select Video"),REQUEST_TAKE_GALLERY_VIDEO);
【讨论】：
Kotlin 版本
val intent = Intent(Intent.ACTION_PICK,MediaStore.Video.Media.EXTERNAL_CONTENT_URI)
intent.type = "video/*";
startActivityForResult(intent, REQUEST_VIDEO_CODE)
那么，?
fun parsePath(uri: Uri?): String? {
val projection = arrayOf(MediaStore.Video.Media.DATA)
val cursor: Cursor? = contentResolver.query(uri!!, projection, null, null, null)
return if (cursor != null) {
val columnIndex: Int = cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DATA)
cursor.moveToFirst()
cursor.getString(columnIndex)
} else null
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
super.onActivityResult(requestCode, resultCode, data)
if (resultCode == RESULT_OK) {
when (requestCode) {
REQUEST_VIDEO_CODE -> {
val videoUri: Uri = data?.data!!
val videoPath = getPath(videoUri)
Log.d("TAG", "$videoPath is the path that you need...")
}
}
}
}
【讨论】：
type()时，它正在打开图像选择器，我不知道为什么？？
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == 1) {
Uri selectedVideoUri = data.getData();
// OI FILE Manager
String filemanagerstring = selectedVideoUri.toString();
vidPath = filemanagerstring;
// MEDIA GALLERY
String selectedVideoPath = getPath(selectedVideoUri);
if (selectedVideoPath != null) {
vidPath = selectedVideoPath;
}
}
}
}
//this function returns null when using IO file manager
public String getPath(Uri uri) {
String[] projection = { MediaStore.Video.Media.DATA };
getContentResolver();
Cursor cursor = getApplicationContext().getContentResolver().query(uri, projection, null, null, null);
if (cursor != null) {
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
如果getpath() 函数返回“null”，则可能是因为您没有正确设置权限。您需要做的就是将其粘贴到您的清单中：
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
将此粘贴到<application> 标记之前，然后，一旦您加载您的应用程序，请转到设置-> 应用程序-> YourApp -> 权限，然后将所有权限设置为true。一旦你这样做了，这段代码应该可以完美运行
【讨论】：
private fun openGalleryForVideo() {
val intent = Intent()
intent.type = "video/*"
intent.action = Intent.ACTION_PICK
startActivityForResult(Intent.createChooser(intent, "Select Video"),Constants.REQUEST_VIDEO)
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
if (requestCode == Constants.REQUEST_VIDEO){
if (resultCode == Activity.RESULT_OK){
if (data?.data != null) {
val uriPathHelper = URIPathHelper()
val videoFullPath = uriPathHelper.getPath(requireContext(), data.data!!)
if (videoFullPath != null) {
val file = File(videoFullPath)
UploadVideoAPICall(file)
}
}
}
}
}
class URIPathHelper {
fun getPath(context: Context, uri: Uri): String? {
val isKitKatorAbove = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT
// DocumentProvider
if (isKitKatorAbove && DocumentsContract.isDocumentUri(context, uri)) {
// ExternalStorageProvider
if (isExternalStorageDocument(uri)) {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
val type = split[0]
if ("primary".equals(type, ignoreCase = true)) {
return Environment.getExternalStorageDirectory().toString() + "/" + split[1]
}
} else if (isDownloadsDocument(uri)) {
val id = DocumentsContract.getDocumentId(uri)
val contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"), java.lang.Long.valueOf(id))
return getDataColumn(context, contentUri, null, null)
} else if (isMediaDocument(uri)) {
val docId = DocumentsContract.getDocumentId(uri)
val split = docId.split(":".toRegex()).toTypedArray()
val type = split[0]
var contentUri: Uri? = null
if ("image" == type) {
contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
} else if ("video" == type) {
contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI
} else if ("audio" == type) {
contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI
}
val selection = "_id=?"
val selectionArgs = arrayOf(split[1])
return getDataColumn(context, contentUri, selection, selectionArgs)
}
} else if ("content".equals(uri.scheme, ignoreCase = true)) {
return getDataColumn(context, uri, null, null)
} else if ("file".equals(uri.scheme, ignoreCase = true)) {
return uri.path
}
return null
}
fun getDataColumn(context: Context, uri: Uri?, selection: String?, selectionArgs: Array<String>?): String? {
var cursor: Cursor? = null
val column = "_data"
val projection = arrayOf(column)
try {
cursor = context.getContentResolver().query(uri!!, projection, selection, selectionArgs,null)
if (cursor != null && cursor.moveToFirst()) {
val column_index: Int = cursor.getColumnIndexOrThrow(column)
return cursor.getString(column_index)
}
} finally {
if (cursor != null) cursor.close()
}
return null
}
fun isExternalStorageDocument(uri: Uri): Boolean {
return "com.android.externalstorage.documents" == uri.authority
}
fun isDownloadsDocument(uri: Uri): Boolean {
return "com.android.providers.downloads.documents" == uri.authority
}
fun isMediaDocument(uri: Uri): Boolean {
return "com.android.providers.media.documents" == uri.authority
}
}
【讨论】：
使用
Intent intent = new Intent();
intent.setType("video/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
startActivityForResult(Intent.createChooser(intent,"Select Video"),REQUEST_TAKE_GALLERY_VIDEO);
【讨论】：
Intent intent = new Intent(Intent.ACTION_PICK,MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
fileUri = getOutputMediaFileUri(MEDIA_TYPE_VIDEO);
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult(intent,
CAMERA_CAPTURE_VIDEO_REQUEST_CODE);
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Uri selectedImageUri = data.getData();
imagePath = getPath(selectedImageUri);
}
public String getPath(Uri uri) {
String[] projection = { MediaStore.Video.Media.DATA };
Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
if (cursor != null) {
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
} else
return null;
}
【讨论】：