Question

这是一个调用意图来打开图片库的代码。

public void getImage() {
        Intent i = new Intent();
        i.setType("image/*");
        i.setAction(Intent.ACTION_GET_CONTENT);
        i.addCategory(Intent.CATEGORY_OPENABLE);
        //Intent customChooserIntent = Intent.createChooser(i, "Pick an image");
        startActivityForResult(i, 10);
 }

响应活动结果

public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == Activity.RESULT_OK) {
            if (requestCode == 10) {
                Uri selectedImageUri = data.getData();
                String selectedImagePath = getRealPathFromURI(selectedImageUri);
              }               
}

getRealPathfromURI（）的代码

public String getRealPathFromURI(Uri uri) {
        String[] projection = {MediaStore.Images.Media.DATA};
        @SuppressWarnings("deprecation")
        Cursor cursor = getActivity().managedQuery(uri, projection, null, null, null);
        int column_index = cursor
                .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }

Answer 1

一个非常简单的代码（经过测试）

图像：

if (Build.VERSION.SDK_INT <= 19) {
                        Intent i = new Intent();
                        i.setType("image/*");
                        i.setAction(Intent.ACTION_GET_CONTENT);
                        i.addCategory(Intent.CATEGORY_OPENABLE);
                        startActivityForResult(i, 10);
                    } else if (Build.VERSION.SDK_INT > 19) {
                        Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                        startActivityForResult(intent, 10);
                    }

视频：

if (Build.VERSION.SDK_INT <= 19) {
                        Intent i = new Intent();
                        i.setType("video/*");
                        i.setAction(Intent.ACTION_GET_CONTENT);
                        i.addCategory(Intent.CATEGORY_OPENABLE);
                        startActivityForResult(i, 20);
                    } else if (Build.VERSION.SDK_INT > 19) {
                        Intent intent = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Video.Media.EXTERNAL_CONTENT_URI);
                        startActivityForResult(intent, 20);
                    }

     @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == Activity.RESULT_OK) {

            if (requestCode == 10) {
                Uri selectedImageUri = data.getData();
                String selectedImagePath = getRealPathFromURI(selectedImageUri);
            } else if (requestCode == 20) {
                Uri selectedVideoUri = data.getData();
                String selectedVideoPath = getRealPathFromURI(selectedVideoUri);
            }

     public String getRealPathFromURI(Uri uri) {
            if (uri == null) {
                return null;
            }
            String[] projection = {MediaStore.Images.Media.DATA};
            Cursor cursor = getActivity().getContentResolver().query(uri, projection, null, null, null);
            if (cursor != null) {
                int column_index = cursor
                        .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
                cursor.moveToFirst();
                return cursor.getString(column_index);
            }
            return uri.getPath();
        }

Answer 2

我得到了简单的答案，只是基于android SDK版本加密路径。

public String getRealPathFromURI(Uri uri) {
    if (Build.VERSION.SDK_INT < 19) {
        String[] projection = {MediaStore.Images.Media.DATA};
        @SuppressWarnings("deprecation")
        Cursor cursor = getActivity().managedQuery(uri, projection, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    } else {
        String selectedImagePath = null;
        String wholeID = DocumentsContract.getDocumentId(uri);
       // Split at colon, use second item in the array
        String id = wholeID.split(":")[1];
        String[] column = {MediaStore.Images.Media.DATA};
        // where id is equal to
        String sel = MediaStore.Images.Media._ID + "=?";
        Cursor cursor = getActivity().getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel, new String[]{id}, null);
        int columnIndex = cursor.getColumnIndex(column[0]);
        if (cursor.moveToFirst()) {
            selectedImagePath = cursor.getString(columnIndex);
        }
        cursor.close();
        return selectedImagePath;
    }
}

Gallery为不同的Android版本返回Intent.ACTION_GET_CONTENT的不同媒体文件URI

2 个答案: