How to manage custom preference layout

Question

I have a custom preference with an image and two text and I need to change the image programmatically.

I am able to get the custom preference view and to find the Im

Answer 1

I tried getView routine but it doesn't work for me, finally I got it through with a custom Preference:

public class ImageViewPreference extends Preference {
    private ImageView mImageView;
    private Bitmap mPhoto;

    public ImageViewPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        this.setWidgetLayoutResource(R.layout.pref_account_image);
        if (mPhoto == null) {
            mPhoto = BitmapFactory.decodeResource(
                    getContext().getResources(), R.drawable.icon);
        }
    }

    @Override
    protected void onBindView(View view) {
        super.onBindView(view);
        mImage = (ImageView) view.findViewById(R.id.pref_imageView);
        mImage.setImageBitmap(mPhoto);
    }

    public void setImage(Intent imageData) {
        mPhoto = data.getParcelableExtra("data");
    }
}

And here is the Preference.xml:

<PreferenceCategory
    android:key="@string/pref_category_myNote_key"
    android:title="@string/pref_category_myNote" >
    <com.flounder.xeniaNote.view.ImageViewPreference
        android:key="@string/pref_image_key"
        android:title="@string/pref_image"
        android:widgetLayout="@layout/pref_account_image" />
</PreferenceCategory>

And call mImagePref.setImage to change your ImageView in the callback method onPreferenceClick.

I wish it helps! Good luck.

Answer 2

What if you put all images under res/drawable and then access them through R.drawable. ? This approach has always worked for me. If you don't have compelling reasons for using URI this approach might be worth trying. Even if you have to use URI I would suggest to test this approach and get it working. Then at least you would know that there is something wrong with the value of the 'path' and not your implementation in general.