java - 如何在android中的自定义适配器类中调用相机 Intent ？

Question

我有一个名为 CustomListAdapter 的适配器类，我是这样写的，所以在这里我遇到了一个问题类转换异常任何人都建议我

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    if (convertView == null)
        convertView = inflater.inflate(R.layout.myplace, null);

    final ImageView ivCamera = (ImageView)convertView.findViewById(R.id.ivCamera);

    ivCamera.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            AlertDialog.Builder adb = new AlertDialog.Builder(v.getRootView().getContext());
            adb.setTitle("Do u Want to Take Photo");
            adb.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    count++;
                    String file = dir+count+".jpg";
                    File newfile = new File(file);
                    try {
                        newfile.createNewFile();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                    Uri outputFileUri = Uri.fromFile(newfile);

                    Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);

                    ((Activity) context).startActivityForResult(cameraIntent, TAKE_PHOTO_CODE);

                }
            });

            adb.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {

                }
            });

            adb.show();
        }
    });
}

我遇到类转换异常，请建议我如何解决此问题

在我的 Activity 中我调用这个方法

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    customListAdapter.onActivityResult(requestCode, resultCode, data);
    Bitmap bp = (Bitmap) data.getExtras().get("data");
    ivCamera.setImageBitmap(bp);
}

Answer 1

试试这个:

 @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        switch (requestCode) {
            case TAKE_PHOTO_CODE:
                if(resultCode == Activity.RESULT_OK) {
                    customListAdapter.onActivityResult(requestCode, resultCode, data);
            Bitmap bp = (Bitmap) data.getExtras().get("data");
            ivCamera.setImageBitmap(bp);
                }
                break;
        }
    }