Question

我正在开发一个应用程序，我试图通过图库将图像加载到我的应用程序。我正在使用Intent从图库中获取图片。存储在内部存储器中的图像完全在应用程序中，但存储在外部存储器中的图像将变为空白。

从图库中获取图片的代码：

Intent intent = new Intent();
        intent.setType("image/*");
        intent.setAction(Intent.ACTION_GET_CONTENT);//
        startActivityForResult(Intent.createChooser(intent, "Select File"), SELECT_FILE);

这是获取图像的位图和绝对路径（getPath（）返回图像的绝对路径）的代码：

Bitmap bm = null;
        String selectedImagePath = null;
        if (data != null) {
            try {
                bm = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());
                bm = scaleDownLargeImageWithAspectRatio(bm);
                ByteArrayOutputStream bytes = new ByteArrayOutputStream();
                bm.compress(Bitmap.CompressFormat.PNG, 90, bytes);
                byte[] byteArray = bytes.toByteArray();
                strProfileImage = Base64.encodeToString(byteArray, Base64.DEFAULT);
                selectedImagePath = getPath(HomeScreenActivity.this, data.getData());
                Log.e("ImagePath Gallery", data.getData().toString());
            } catch (IOException e) {
                e.printStackTrace();
            }
if (selectedImagePath != null) {
                    Uri currentImageUri = null;
                    if (Build.VERSION.SDK_INT >= 24) {
                        // wrap File object into a content provider. NOTE: authority here should match authority in manifest declaration
                        currentImageUri = FileProvider.getUriForFile(HomeScreenActivity.this, "com.example.sravanthiv.consumermobileapp_nonclinical_android.fileprovider", new File(selectedImagePath));  // use this version for API >= 24
                    } else {
                        currentImageUri = Uri.fromFile(new File(selectedImagePath));
                    }
                }

我使用currentImageUri在我的应用程序中加载图像。但有些是空白的（存储在外部存储器中），有些正在变得完美（存储在内部存储器中）。

我正在使用Picasso来加载图片： Picasso.with(mContext).load(Uri.parse(imagesList.get(currentPosition))).resize(135,135).centerCrop().into(holder.selfie_Imageview);

无法加载此路径： content://com.example.android.fileprovider/all_dirs/DCIM/Camera/IMG_20171226_161309.jpg

但是它能够加载此路径： content://com.example.android.fileprovider/all_dirs/IMG_20171226_161309.jpg

Answer 1

试试这个解决方案：

issued_date

{ "cols": [ {"id":"","label":"Sold Year","pattern":"","type":"string"}, {"id":"","label":"Unit Price","pattern":"","type":"number"} ], "rows": [{"c":[{"v":"2006","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2007","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2008","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2009","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2010","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2011","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2012","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2013","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2014","f":null},{"v":"0","f":"$0"}]},{"c":[{"v":"2015","f":null},{"v":"10700","f":"$10,700"}]},{"c":[{"v":"2015","f":null},{"v":"1280","f":"$1,280"}]},{"c":[{"v":"2016","f":null},{"v":"2500","f":"$2,500"}]},{"c":[{"v":"2016","f":null},{"v":"80500","f":"$80,500"}]},]}执行此操作：

private void galleryIntent() {
    Intent i = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
    startActivityForResult(i, Util.SELECT_FILE);
}

从图库所选图片中获取结果

onActivityResult

忘记图片真实路径

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

    if (resultCode == Activity.RESULT_OK) {
        if (requestCode == Util.SELECT_FILE) {
            onSelectFromGalleryResult(data);
        } 
    }

}

希望这有助于你...如果你需要任何帮助，你可以问

从android

1 个答案: