無法從Picasso中的file：//路徑加載圖像

Question

我正在嘗試使用Picasso將ImageView從圖庫加載到ImageView 。

這是代碼

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if(resultCode!= Activity.RESULT_OK) return;

        switch (requestCode) {
            case PICK_GALLERY_IMAGE_REQUEST: {
                Uri imageUri = data.getData();
                Log.d(DEBGUG_TAG,"Image URI: "+imageUri.toString());


                Picasso picasso = Picasso.with(getApplicationContext());
                picasso.setLoggingEnabled(true);
                picasso.load(imageUri).error(R.drawable.c).into(testImgView, new com.squareup.picasso.Callback(){

                    @Override
                    public void onSuccess() {
                        Log.d(DEBGUG_TAG,"Success loading image from uri:PICASSO");
                    }

                    @Override
                    public void onError() {
                        Log.d(DEBGUG_TAG,"Cannot load image");
                    }
                });

問題是從圖庫中選擇圖像時會返回文件路徑

D/debug: Image URI: file:///storage/emulated/0/DCIM/Camera/IMG_20170126_211524.jpg

這似乎不適用於Picasso，因為返回錯誤並記錄D/debug: Cannot load image以錯誤方法D/debug: Cannot load image 。

但是，從另一個返回Uri應用中選擇相同的圖像，例如： D/debug: Image URI: content://com.google.android.apps.photos.contentprovider/-1/1/content%3A%2F%2Fmedia%2Fexternal%2Fimages%2Fmedia%2F90455/ORIGINAL/NONE/1757236944成功。

有什么辦法從文件路徑加載圖像嗎？

Answer 1

不要使用file：//，就像這樣使用它：

 Uri targetUri = data.getData();
            if (data.toString().contains("content:")) {
                imagePath = getRealPathFromURI(targetUri);
            } else if (data.toString().contains("file:")) {
                imagePath = targetUri.getPath();
            } else {
                imagePath = null;
            }

 public String getRealPathFromURI(Uri contentUri) {
    Cursor cursor = null;
    try {
        String[] proj = {MediaStore.Images.Media.DATA};
        cursor = 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();
        }
    }
}

Answer 2

嘗試以下代碼：

File imgFile = new  File("/sdcard/Images/test_image.jpg");

if(imgFile.exists()){

    Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());

    ImageView myImage = (ImageView) findViewById(R.id.imageviewTest);

    myImage.setImageBitmap(myBitmap);

}

Answer 3

嘗試使用ImageView的內置方法setImageURI獲取本地文件

testImgView.setImageURI(Uri.parse(imageUri));