java - 尝试在对话框中使 ImageView 全尺寸不起作用

Question

我正在使用Fragments，当我点击 fragment 上的ImageView时，我想获得全尺寸图像mImageReport。我的第二个布局是 test.xml(用于对话框)。

我使用 Picasso 从 URL 获取图像

但问题是我的图像没有出现在新对话框(mImageReport)上。我不知道如何将 test.xml 中的 imageView 与我想要在 fragment 中全屏显示的图像链接...

这是我的代码。

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;
    }

测试.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

从 fragment onCreateView 调用此方法或根据您的要求...

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();
}