如何在android设备中从pick文件获取绝对路径？

3phpmpom  于 2021-09-13  发布在  Java
关注(0)|答案(3)|浏览(304)

我尝试了很多方法，但并没有返回我想要的路径，我怎样才能得到绝对路径？
这是我找回的

/document/image:29163

意图守则

binding.buttonSetVoiceGallery.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent();
                intent.setType("*/*");
                intent.setAction(Intent.ACTION_GET_CONTENT);
                startActivityForResult(intent, 0);
            }
        });

当activityresult

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0 && resultCode == RESULT_OK) {

            Log.d(TAG,data.getData().getPath());
        }
    }
Javaandroidandroid-intent

3条答案

按热度按时间
kh212irz

kh212irz1#

请尝试以下代码以获取绝对路径：

@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 0 && resultCode == RESULT_OK) {

            Log.d(TAG,data.getData().getPath());
            Object objImg = data.getExtras().get("path");
            Log.e("Selected", "" + objImg.toString());
            /*--getting image uri from object--*/
            Uri selectedImage = Uri.parse(String.valueOf(objImg));
            Log.e("Selected Image", "" + selectedImage);
            /*--create file object using uri--*/
            File myFile = new File(selectedImage.getPath());
            String path = myFile.getAbsolutePath();
            Log.e("AbsolutePath---", ""+path);
        }
    }
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wmvff8tz

wmvff8tz2#

@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable @org.jetbrains.annotations.Nullable Intent data) {

    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == 0 && resultCode == RESULT_OK) {
        if (data != null) {
            File file = new File(getFileFromUri(mContext, data.getData()));
            Log.i("absolute_path", file.getAbsolutePath());
        }
    }
}

private static String getFileFromUri(final Context context, final Uri uri) {

    if (DocumentsContract.isDocumentUri(context, uri)) {

        if (isExternalStorageDocument(uri)) {

            final String docId = DocumentsContract.getDocumentId(uri);
            final String[] split = docId.split(":");
            final String type = split[0];

            String path = null;
            if ("primary".equalsIgnoreCase(type)) {
                if (split.length > 1) {
                    path = Environment.getExternalStorageDirectory() + "/" + split[1];
                } else {
                    path = Environment.getExternalStorageDirectory() + "/";
                }
            } else {
                path = "storage" + "/" + docId.replace(":", "/");
            }

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                try {
                    MediaStoreUtils mediaStoreUtils = new MediaStoreUtils();
                    InputStream in = context.getContentResolver().openInputStream(uri);
                    Uri uriValue = mediaStoreUtils.savePDFFile(context, in, getMimeTypeFromURI(context, uri), "Document_Name");
                    Log.i("NEWURII = ", uriValue.toString());
                    if (uriValue != null) {
                        return getFileFromUri(context, uriValue);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            } else
                return path;

        } else if (isDownloadsDocument(uri)) {

            String fileName = getFilePath(context, uri);
            if (fileName != null) {
                return Environment.getExternalStorageDirectory().toString() + "/Download/" + fileName;
            }

            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);

        } 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);

        } else if (isGoogleDocsUri(uri) || isOneDriveUri(uri) || isBoxUri(uri)) {

            return getDriveFilePath(uri, context);
        }
    } else if ("content".equalsIgnoreCase(uri.getScheme())) {

        // Return the remote address
        if (isGooglePhotosUri(uri))
            return uri.getLastPathSegment();

        return getDataColumn(context, uri, null, null);

    } else if ("file".equalsIgnoreCase(uri.getScheme())) {

        return uri.getPath();
    }

    return null;
}

private 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 index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

private static String getFilePath(Context context, Uri uri) {

    final String[] projection = {
            MediaStore.MediaColumns.DISPLAY_NAME
    };
    try (Cursor cursor = context.getContentResolver().query(uri, projection, null, null,
            null)) {
        if (cursor != null && cursor.moveToFirst()) {
            final int index = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DISPLAY_NAME);
            return cursor.getString(index);
        }
    }
    return null;
}

public static String getMimeTypeFromURI(Context mContext, Uri uri) {

    ContentResolver cR = mContext.getContentResolver();
    MimeTypeMap mime = MimeTypeMap.getSingleton();

    return cR.getType(uri);
}

private static boolean isExternalStorageDocument(Uri uri) {
    return "com.android.externalstorage.documents".equals(uri.getAuthority());
}

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());
}

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

private static boolean isGoogleDocsUri(Uri uri) {
    return "com.google.android.apps.docs.storage".equals(uri.getAuthority()) || "com.google.android.apps.docs.storage.legacy".equals(uri.getAuthority());
}

private static boolean isOneDriveUri(Uri uri) {
    return "com.microsoft.skydrive.content.StorageAccessProvider".equals(uri.getAuthority());
}

private static boolean isBoxUri(Uri uri) {
    return "com.box.android.documents".equals(uri.getAuthority());
}

private static String getDriveFilePath(Uri uri, Context context) {
    Uri returnUri = uri;
    Cursor returnCursor = context.getContentResolver().query(returnUri, null, null, null, null);
    /*
     * Get the column indexes of the data in the Cursor,
     *     * move to the first row in the Cursor, get the data,
     *     * and display it.
     * */
    int nameIndex = returnCursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
    int sizeIndex = returnCursor.getColumnIndex(OpenableColumns.SIZE);
    returnCursor.moveToFirst();
    String name = (returnCursor.getString(nameIndex));
    String size = (Long.toString(returnCursor.getLong(sizeIndex)));
    File file = new File(context.getFilesDir(), name);
    try {
        InputStream inputStream = context.getContentResolver().openInputStream(uri);
        FileOutputStream outputStream = new FileOutputStream(file);
        int read = 0;
        int maxBufferSize = 1 * 1024 * 1024;
        int bytesAvailable = inputStream.available();

        //int bufferSize = 1024;
        int bufferSize = Math.min(bytesAvailable, maxBufferSize);

        final byte[] buffers = new byte[bufferSize];
        while ((read = inputStream.read(buffers)) != -1) {
            outputStream.write(buffers, 0, read);
        }
        Log.e("File Size", "Size " + file.length());
        inputStream.close();
        outputStream.close();
        Log.e("File Path", "Path " + file.getPath());
        Log.e("File Size", "Size " + file.length());
    } catch (Exception e) {
        Log.e("Exception", e.getMessage());
    }
    return file.getPath();
}
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ymzxtsji

ymzxtsji3#

binding.buttonSetVoiceGallery.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {

   Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            launcher.launch(intent);
                }
            });

 ActivityResultLauncher<Intent> launcher = registerForActivityResult(
            new ActivityResultContracts.StartActivityForResult(),
            new ActivityResultCallback<ActivityResult>() {
                @Override
                public void onActivityResult(ActivityResult result) {
                    if (result.getResultCode() == Activity.RESULT_OK ) {
                   Intent data = result.getData();
                    Uri uri= data.getData();
                     File file = new File(FileMyutils.getPath(getContext(),uri));    
                    }
                }
            });

public class FileMyutils {
    private static final String TAG = "FileUtils";
    @WorkerThread
    @Nullable
    public static String getReadablePathFromUri(Context context, Uri uri) {

        String path = null;
        if ("file".equalsIgnoreCase(uri.getScheme())) {
            path = uri.getPath();
        }

        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
            path = getPath(context, uri);
        }

        if (TextUtils.isEmpty(path)) {
            return path;
        }

        Log.d(TAG, "get path from uri: " + path);
        if (!isReadablePath(path)) {
            int index = path.lastIndexOf("/");
            String name = path.substring(index + 1);
            String dstPath = context.getCacheDir().getAbsolutePath() + File.separator + name;
            if (copyFile(context, uri, dstPath)) {
                path = dstPath;
                Log.d(TAG, "copy file success: " + path);
            } else {
                Log.d(TAG, "copy file fail!");
            }
        }
        return path;
    }

    public static String getPath(final Context context, final Uri uri) {
        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                Log.d("External Storage", docId);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }
            } else if (isDownloadsDocument(uri)) {

                String dstPath = context.getCacheDir().getAbsolutePath() + File.separator + getFileName(context,uri);

                if (copyFile(context, uri, dstPath)) {
                    Log.d(TAG, "copy file success: " + dstPath);
                    return dstPath;

                } else {
                    Log.d(TAG, "copy file fail!");
                }

            } 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);
            }
        } else if ("content".equalsIgnoreCase(uri.getScheme())) {
            return getDataColumn(context, uri, null, null);
        } else if ("file".equalsIgnoreCase(uri.getScheme())) {
            return uri.getPath();
        }
        return null;
    }

    public static String getFileName(Context context, Uri uri) {

        Cursor cursor = context.getContentResolver().query(uri,null,null,null,null);
        int nameindex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME);
        cursor.moveToFirst();

        return  cursor.getString(nameindex);
    }

    private 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;
    }

    private static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    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());
    }

    private static boolean isReadablePath(@Nullable String path) {
        if (TextUtils.isEmpty(path)) {
            return false;
        }
        boolean isLocalPath;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            if (!TextUtils.isEmpty(path)) {
                File localFile = new File(path);
                isLocalPath = localFile.exists() && localFile.canRead();
            } else {
                isLocalPath = false;
            }
        } else {
            isLocalPath = path.startsWith(File.separator);
        }
        return isLocalPath;
    }

    private static boolean copyFile(Context context, Uri uri, String dstPath) {
        InputStream inputStream = null;
        OutputStream outputStream = null;
        try {
            inputStream = context.getContentResolver().openInputStream(uri);
            outputStream = new FileOutputStream(dstPath);

            byte[] buff = new byte[100 * 1024];
            int len;
            while ((len = inputStream.read(buff)) != -1) {
                outputStream.write(buff, 0, len);
            }
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

            if (outputStream != null) {
                try {
                    outputStream.close();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
        return true;
    }

}
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