Question

我想将ImageView的可绘制来源设置为用户拍摄的照片，但它不起作用。

当用户拍照时，这是我的onActivityResult：

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
    if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
          Intent intent = new Intent(this, MyNewActivity.class);
          intent.putExtra("URI", imageUri.toString());
          startActivity(intent);
    }
}

这是Activity我要设置ImageView资源的部分：

if (getIntent().getStringExtra("URI") != null) {
    File imgFile = new File(getIntent().getStringExtra("URI"));

    if(imgFile.exists()){
         Bitmap myBitmap = BitmapFactory.decodeFile(imgFile.getAbsolutePath());
         contactImage.setImageBitmap(myBitmap);
    }
}

当我尝试这个时，我有一个这样的路径：“ file /// storage / emulated / O / fname_xxxx.jpg ”但它不起作用。

我尝试使用图片选择器并且它可以工作（使用“/ storage / emulated /...”这样的路径）！我真的不知道为什么......

Answer 1

 File imgFile = new File(getIntent().getStringExtra("URI"));

转换为

 File imgFile = new File("file:///storage/emulated/O/fname_xxxx.jpg");

但它应转换为

 File imgFile = new File("/storage/emulated/O/fname_xxxx.jpg");

请在使用前删除"file://"。

Answer 2

这对我有用

    if (getIntent().getStringExtra("URI") != null) {
        Uri myUri = Uri.parse(extras.getString("URI"));
        Picasso.with(RegisterActivity.this)
               .load(selectedImage)
               .into(contactImage);
    }

Answer 3

尝试以下代码拍摄相机和相机拍摄的Pic。也可以选择画廊

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

        if (resultCode == this.RESULT_OK) {
            if (requestCode == SELECT_FILE)
                onSelectFromGalleryResult(data);
            else if (requestCode == REQUEST_CAMERA)
                onCaptureImageResult(data);
        }
    }

    private void onCaptureImageResult(Intent data) {
        Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        thumbnail.compress(Bitmap.CompressFormat.JPEG, 90, bytes);

        File destination = new File(Environment.getExternalStorageDirectory(),
                System.currentTimeMillis() + ".jpg");
        FileOutputStream fo;
        try {
            destination.createNewFile();
            fo = new FileOutputStream(destination);
            fo.write(bytes.toByteArray());
            fo.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        profileIV.setImageBitmap(thumbnail);

        // CALL THIS METHOD TO GET THE URI FROM THE BITMAP
        Uri tempUri = getImageUri(getApplicationContext(), thumbnail);

        // CALL THIS METHOD TO GET THE ACTUAL PATH
         file = new File(getRealPathFromURI(tempUri));
    }

    @SuppressWarnings("deprecation")
    private void onSelectFromGalleryResult(Intent data) {

        Bitmap bm=null;
        if (data != null) {
            try {
                bm = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), data.getData());

                // CALL THIS METHOD TO GET THE URI FROM THE BITMAP
                Uri tempUri = getImageUri(getApplicationContext(), bm);

                // CALL THIS METHOD TO GET THE ACTUAL PATH
                 file = new File(getRealPathFromURI(tempUri));
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        profileIV.setImageBitmap(bm);
    }



    public String getRealPathFromURI(Uri uri) {
        Cursor cursor = getContentResolver().query(uri, null, null, null, null);
        cursor.moveToFirst();
        int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
        return cursor.getString(idx);
    }

Answer 4

点击图片

Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra("URI",Intent.URI_INTENT_SCHEME);
startActivityForResult(cameraIntent, CAMERA_REQUEST);

将onActivityResult（）方法替换为以下代码

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == CAMERA_REQUEST && resultCode == Activity.RESULT_OK) {
        Bitmap photo = (Bitmap) data.getExtras().get("URI");
        imageView.setImageBitmap(photo);
    }
}

Answer 5

我认为你是意图捆绑错误的URI数据尝试下面的代码

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
    if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) {
          Intent intent = new Intent(this, MyNewActivity.class);
          intent.putExtra("URI", data.getData().toString());
          startActivity(intent);
    }
}

这可能会有所帮助

Answer 6

我发现解决方案将“file：//”替换为“”：

if (getIntent().getStringExtra("URI") != null) {
            File imgFile = new File(getIntent().getStringExtra("URI").replace("file://", ""));
            if(imgFile.exists()){
                Picasso.with(this).load(imgFile).into(myImageView);
            }
        }

所以我得到了：

{{1}}

使用用户拍摄的照片设置ImageView

6 个答案: