试图在Dialog中将ImageView设为完整大小不起作用

Question

I'm using Fragments , I would like to get full size image mImageReport when I tap on ImageView on my fragment. My second layout is test.xml (for Dialog).

I'm getting image from URL using Picasso

But the problem is my image doesn't appear on the new dialog (mImageReport). I don't know how to link the imageView from test.xml with the image I want in full screen in my fragment...

Here is my code.

Reports.java :

public class Reports extends Fragment {
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (container == null) {
            return null;
        }
        View view = inflater.inflate(R.layout.reports, container, false);
        ButterKnife.inject(this, view);

    final Dialog nagDialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar_Fullscreen);
    nagDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    nagDialog.setCancelable(false);
    nagDialog.setContentView(R.layout.test);
    Button btnClose = (Button)nagDialog.findViewById(R.id.btnIvClose);
    ImageView ivPreview = (ImageView)nagDialog.findViewById(R.id.iv_preview_image);

    // Loading image from url in ImageView ... HERE IS THE PROBLEM
    Picasso.with(mImageReport.getContext()).load(mCurrentReportString.getUrlImages()).into(ivPreview);
    mImageReport.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            nagDialog.show();
        }
    });

        btnClose.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View arg0) {

                nagDialog.dismiss();
            }
        });


        return view;
    }

test.xml :

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
                android:orientation="vertical" android:layout_width="match_parent"
                android:layout_height="match_parent">

    <ImageView android:layout_width="match_parent"
               android:layout_height="match_parent" android:id="@+id/iv_preview_image" />


    <Button android:layout_width="match_parent"
            android:layout_height="match_parent"   android:background="@drawable/fileclose"
            android:id="@+id/btnIvClose" android:layout_alignParentRight="true"
            android:layout_alignParentTop="true" />
    </RelativeLayout>

Answer 1

Call this method from fragment onCreateView or according to your requirements...

private void showImage() {
    final Dialog nagDialog = new Dialog(getActivity(),android.R.style.Theme_Translucent_NoTitleBar_Fullscreen);
    nagDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    nagDialog.setCancelable(false);
    nagDialog.setContentView(R.layout.test);
    Button btnClose = (Button)nagDialog.findViewById(R.id.btnIvClose);
    ImageView ivPreview = (ImageView)nagDialog.findViewById(R.id.iv_preview_image);

    // Loading image from url in ImageView ... HERE IS THE PROBLEM
    Picasso.with(getActivity()).load(mCurrentReportString.getUrlImages()).into(ivPreview);  

    btnClose.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View arg0) {

            nagDialog.dismiss();
        }
    });
    nagDialog.show();
}