android.widget.ImageView#setAdjustViewBounds ( )源码实例Demo

下面列出了android.widget.ImageView#setAdjustViewBounds ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： ucar-weex-core 文件： WXEmbed.java

@Override
public void onException(NestedContainer container, String errCode, String msg) {
  if (TextUtils.equals(errCode, WXRenderErrorCode.WX_NETWORK_ERROR) && container instanceof WXEmbed) {
    final WXEmbed comp = ((WXEmbed)container);
    final ImageView imageView = new ImageView(comp.getContext());
    imageView.setImageResource(R.drawable.error);
    FrameLayout.LayoutParams layoutParams = new FrameLayout.LayoutParams(ERROR_IMG_WIDTH, ERROR_IMG_HEIGHT);
    layoutParams.gravity = Gravity.CENTER;
    imageView.setLayoutParams(layoutParams);
    imageView.setScaleType(ImageView.ScaleType.FIT_XY);
    imageView.setAdjustViewBounds(true);
    imageView.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View v) {
        imageView.setOnClickListener(null);
        imageView.setEnabled(false);
        comp.loadContent();
      }
    });
    FrameLayout hostView = comp.getHostView();
    hostView.removeAllViews();
    hostView.addView(imageView);
    WXLogUtils.e("WXEmbed", "NetWork failure :" + errCode + ",\n error message :" + msg);
  }
}

源代码2 项目： MaterialDesignLibrary 文件： ButtonFloat.java

public ButtonFloat(Context context, AttributeSet attrs) {
	super(context, attrs);
	setBackgroundResource(R.drawable.background_button_float);
	setBackgroundColor(backgroundColor);
	sizeRadius = 28;
	setDefaultProperties();
	icon = new ImageView(context);
	icon.setAdjustViewBounds(true);
	icon.setScaleType(ScaleType.CENTER_CROP);
	if(drawableIcon != null) {
		icon.setImageDrawable(drawableIcon);
	}
	LayoutParams params = new LayoutParams(Utils.dpToPx(sizeIcon, getResources()),Utils.dpToPx(sizeIcon, getResources()));
	params.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
	icon.setLayoutParams(params);
	addView(icon);		
	
}

源代码3 项目： cannonball-android 文件： ImageAdapter.java

@Override
public Object instantiateItem(ViewGroup container, final int position) {
    if (context.get() != null) {
        final int drawableId = theme.getImageList().get(position + 1);
        final ImageView view = new ImageView(context.get());
        view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT));
        view.setContentDescription(context.get().getResources().getString(R.string
                .content_desc_poempic));
        view.setScaleType(ImageView.ScaleType.CENTER_CROP);
        view.setAdjustViewBounds(true);
        view.setTag(drawableId);
        container.addView(view, 0);
        view.post(new Runnable() {
            @Override
            public void run() {
                ImageLoader.getImageLoader().load(drawableId, view);
            }
        });
        return view;
    }
    return null;
}

源代码4 项目： openlauncher 文件： ShareUtil.java

public void showMountSdDialog(@StringRes final int title, @StringRes final int description, @DrawableRes final int mountDescriptionGraphic, final Activity... activityOrNull) {
    Activity activity = greedyGetActivity(activityOrNull);
    if (activity == null) {
        return;
    }

    // Image viewer
    ImageView imv = new ImageView(activity);
    imv.setImageResource(mountDescriptionGraphic);
    imv.setAdjustViewBounds(true);

    AlertDialog.Builder dialog = new AlertDialog.Builder(activity);
    dialog.setView(imv);
    dialog.setTitle(title);
    dialog.setMessage(_context.getString(description) + "\n\n");
    dialog.setNegativeButton(android.R.string.cancel, null);
    dialog.setPositiveButton(android.R.string.yes, (dialogInterface, i) -> requestStorageAccessFramework(activity));
    AlertDialog dialogi = dialog.create();
    dialogi.show();
}

源代码5 项目： android 文件： TutorialActivity.java

/**
 * The last fragment is transparent to enable the swipe-to-finish behaviour seen on
 * Google's apps. So our viewpager circle indicator needs to show NUM_PAGES - 1
 * Source: https://gist.github.com/fiskurgit
 */
private void buildCircles(ViewGroup parent) {

    final float scale = getResources().getDisplayMetrics().density;
    final int padding = (int) (5 * scale + 0.5f);

    for (int i = 0; i < NUM_PAGES; i++) {
        ImageView circle = new ImageView(this);
        circle.setImageResource(R.drawable.circle);
        circle.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
        circle.setAdjustViewBounds(true);
        circle.setPadding(padding, 0, padding, 0);
        parent.addView(circle);
    }

    setIndicator(0);
}

源代码6 项目： Cardboard 文件： CardboardOverlayView.java

public CardboardOverlayEyeView(Context context, AttributeSet attrs) {
    super(context, attrs);
    imageView = new ImageView(context, attrs);
    imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
    imageView.setAdjustViewBounds(true);  // Preserve aspect ratio.
    addView(imageView);

    textView = new TextView(context, attrs);
    textView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 14.0f);
    textView.setTypeface(textView.getTypeface(), Typeface.BOLD);
    textView.setGravity(Gravity.CENTER);
    textView.setShadowLayer(3.0f, 0.0f, 0.0f, Color.DKGRAY);
    addView(textView);
}

源代码7 项目： SuperDialog 文件： SuperDialog.java

/**
 * 标题下方，内容文本上方的图片
 */
private void initImageView(ViewGroup viewRoot) {
    imageView = new ImageView(context);
    imageView.setAdjustViewBounds(true);
    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
    layoutParams.setMargins(dp2px(15), dp2px(5), dp2px(15), dp2px(5));
    imageView.setLayoutParams(layoutParams);
    viewRoot.addView(imageView);
    if (imageListener != null) {
        imageListener.onInitImageView(imageView);
    }
}

源代码8 项目： PagerTabIndicator 文件： PagerTabsIndicator.java

private View createImageView() {
    ImageView imageView = new ImageView(getContext());
    imageView.setPadding(tabPadding, tabPadding, tabPadding, tabPadding);
    imageView.setScaleType(ImageView.ScaleType.FIT_XY);
    imageView.setAdjustViewBounds(true);
    return imageView;
}

源代码9 项目： ImageLoader 文件： AlbumAdapter.java

@Override
protected void convert(@NonNull final BaseViewHolder helper, final Album item) {
    helper.getView(R.id.item_iv).setTag(R.id.item_iv,item);
    ImageView imageView = helper.getView(R.id.item_iv);
    imageView.setAdjustViewBounds(false);
    RelativeLayout.LayoutParams params = (RelativeLayout.LayoutParams) imageView.getLayoutParams();
    params.height = imageView.getContext().getResources().getDisplayMetrics().widthPixels/2;
    imageView.setLayoutParams(params);

    ImageLoader.with(helper.itemView.getContext())
            .file(item.cover)
            .scale(ScaleMode.CENTER_CROP)
            .loading(R.drawable.iv_loading_trans)
            .error(R.drawable.im_item_list_opt_error)
            .into(imageView);
    helper.setText(R.id.tv_info,item.name);
    helper.getConvertView().setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ImageListView listView = new ImageListView(v.getContext());
            ImageMediaCenterUtil.showViewAsDialog(listView);
            listView.showImagesInAlbum(item);
        }
    });





}

源代码10 项目： glide-support 文件： GeneratingAdapter.java

@Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
	ImageView view = new ImageView(parent.getContext());
	int height = parent.getContext().getResources().getDisplayMetrics().heightPixels / 3;
	view.setLayoutParams(new RecyclerView.LayoutParams(MATCH_PARENT, height));
	view.setAdjustViewBounds(true);
	view.setScaleType(ImageView.ScaleType.FIT_CENTER);
	return new RecyclerView.ViewHolder(view) {
	};
}

源代码11 项目： appinventor-extensions 文件： ViewUtil.java

/**
 * Sets the image for an ImageView.
 */
public static void setImage(ImageView view, Drawable drawable) {
  view.setImageDrawable(drawable);
  if (drawable != null) {
    view.setAdjustViewBounds(true);
  }
  view.requestLayout();
}

源代码12 项目： FastAccess 文件： FloatingView.java

public FloatingView(@NonNull Context context, @NonNull FloatingTouchCallback callback) {
    super(context);
    this.callback = callback;
    imageView = new ImageView(context);
    imageView.setAdjustViewBounds(true);
    imageView.setContentDescription(getResources().getString(R.string.app_name));
    setupImageView();
    addView(imageView);
    this.setOnTouchListener(this);
}

源代码13 项目： codeexamples-android 文件： ImageSwitcher1.java

public View getView(int position, View convertView, ViewGroup parent) {
    ImageView i = new ImageView(mContext);

    i.setImageResource(mThumbIds[position]);
    i.setAdjustViewBounds(true);
    i.setLayoutParams(new Gallery.LayoutParams(
            LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT));
    i.setBackgroundResource(R.drawable.picture_frame);
    return i;
}

源代码14 项目： LibreTasks 文件： ActivityDlgActionInput.java

public View getView(int position, View convertView, ViewGroup parent) {
  LinearLayout ll = new LinearLayout(context);
  ll.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.FILL_PARENT,
      LayoutParams.FILL_PARENT));
  ll.setMinimumHeight(50);
  ll.setOrientation(LinearLayout.HORIZONTAL);
  ll.setGravity(Gravity.CENTER_VERTICAL);

  ImageView iv = new ImageView(context);
  iv.setImageResource(attributes.get(position).getIconResId());
  iv.setAdjustViewBounds(true);
  iv.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.WRAP_CONTENT,
      LayoutParams.WRAP_CONTENT));
  if (listView.getCheckedItemPosition() == position) {
    iv.setBackgroundResource(R.drawable.icon_hilight);
  }

  TextView tv = new TextView(context);
  tv.setText(attributes.get(position).getDescriptionShort());
  tv.setLayoutParams(new AbsListView.LayoutParams(LayoutParams.FILL_PARENT,
      LayoutParams.FILL_PARENT));
  tv.setGravity(Gravity.CENTER_VERTICAL);
  tv.setPadding(10, 0, 0, 0);
  tv.setTextSize(14.0f);
  tv.setTypeface(Typeface.defaultFromStyle(Typeface.BOLD));
  tv.setTextColor(0xFFFFFFFF);
  tv.setMinHeight(46);

  ll.addView(iv);
  ll.addView(tv);

  return ll;
}

源代码15 项目： BorderMenu 文件： IconItem.java

public IconItem(BorderMenuActivity borderMenuActivity, int id, int idResource) {
	super(borderMenuActivity, id);
	icon = new ImageView(borderMenuActivity);
	setMinimumHeight(Utils.dpToPx(56, getResources()));
	setMinimumWidth(Utils.dpToPx(56, getResources()));
	icon.setAdjustViewBounds(true);
	icon.setScaleType(ScaleType.CENTER_CROP);
	icon.setImageResource(idResource);
	RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams(Utils.dpToPx(24, getResources()),Utils.dpToPx(24, getResources()));
	params.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
	icon.setLayoutParams(params);
	rippleSpeed = Utils.dpToPx(2, getResources());
	addView(icon);
}

源代码16 项目： BuildmLearn-Toolkit-Android 文件： VideoCollectionTemplate.java

@Override
public void editItem(final Activity activity, final int position) {

    LayoutInflater inflater = activity.getLayoutInflater();
    View dialogView = inflater.inflate(R.layout.video_dialog_edit_data, null);
    final AlertDialog dialog = new AlertDialog.Builder(activity)
            .setTitle(R.string.info_edit_title)
            .setView(dialogView,
                    activity.getResources().getDimensionPixelSize(R.dimen.spacing_left),
                    activity.getResources().getDimensionPixelSize(R.dimen.spacing_top),
                    activity.getResources().getDimensionPixelSize(R.dimen.spacing_right),
                    activity.getResources().getDimensionPixelSize(R.dimen.spacing_bottom))
            .setPositiveButton(R.string.info_template_ok, null)
            .setNegativeButton(R.string.info_template_cancel, null)
            .create();
    dialog.show();

    final VideoModel data = videoData.get(position);

    final ImageView thumb = (ImageView) dialogView.findViewById(R.id.thumb);
    final EditText title = (EditText) dialogView.findViewById(R.id.video_title);
    final EditText description = (EditText) dialogView.findViewById(R.id.video_description);
    final EditText link = (EditText) dialogView.findViewById(R.id.video_link);

    Picasso.with(mContext)
            .load(data.getThumbnailUrl())
            .transform(new RoundedTransformation(10, 10))
            .fit()
            .centerCrop()
            .into(thumb);

    thumb.setAdjustViewBounds(true);

    title.setText(data.getTitle().trim());
    description.setText(data.getDescription().trim());
    link.setText(data.getLink().trim());

    dialog.getButton(DialogInterface.BUTTON_POSITIVE).setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            if (validated(activity, title, description, link)) {

                String titleText = title.getText().toString().trim();
                String descriptionText = description.getText().toString().trim();
                String linkText = link.getText().toString().trim();

                setEmptyView(activity);

                if (linkText.equals(data.getLink())) {
                    data.setTitle(titleText);
                    data.setDescription(descriptionText);
                    adapter.notifyDataSetChanged();

                } else {
                    String convertedLink = convertLink(linkText);

                    if (NetworkUtils.isNetworkAvailable(mContext)) {
                        progress = new ProgressDialog(activity);
                        progress.setCancelable(false);
                        progress.show();
                        new VideoInfoTask().execute(convertedLink, linkText, String.valueOf(position));
                    } else {
                        Toast.makeText(mContext, R.string.network_error, Toast.LENGTH_SHORT).show();
                    }
                }

                dialog.dismiss();
            }

        }
    });
}

源代码17 项目： CatchPiggy 文件： ClassicMode.java

/**
 * 初始化棋盘状态和格子的实例
 */
private void initChildrenViews(Item.OnItemPressedListener onItemPressedListener) {
    BitmapDrawable unselectedDrawable = getUnselectedDrawable();
    BitmapDrawable selectedDrawable = getSelectedDrawable();
    BitmapDrawable occupiedDrawableLeft = getOccupiedDrawableLeft();
    BitmapDrawable occupiedDrawableRight = getOccupiedDrawableRight();
    BitmapDrawable guideDrawable = getGuideDrawable();

    for (int vertical = 0; vertical < mVerticalCount; vertical++) {
        for (int horizontal = 0; horizontal < mHorizontalCount; horizontal++) {
            Item tmp = new Item(getContext());
            tmp.setPadding(mItemPadding, mItemPadding, mItemPadding, mItemPadding);
            tmp.setOnItemPressedListener(onItemPressedListener);
            tmp.setPositions(horizontal, vertical);
            tmp.setUnSelectedBitmap(unselectedDrawable.getBitmap());
            tmp.setSelectedBitmap(selectedDrawable.getBitmap());
            tmp.setOccupiedBitmapLeft(occupiedDrawableLeft.getBitmap());
            tmp.setOccupiedBitmapRight(occupiedDrawableRight.getBitmap());
            tmp.setGuideBitmap(guideDrawable.getBitmap());
            mItems[vertical][horizontal] = tmp;
            addView(tmp);
        }
    }

    mSelectedView = new ImageView(getContext());
    mSelectedView.setAdjustViewBounds(true);

    mSelectedView.setImageResource(R.drawable.anim_drop_left);
    mDropLeftAnimationDrawable = (AnimationDrawable) mSelectedView.getDrawable();

    mSelectedView.setImageResource(R.drawable.anim_drop_right);
    mDropRightAnimationDrawable = (AnimationDrawable) mSelectedView.getDrawable();

    mSelectedView.setImageResource(R.drawable.anim_run_left);
    mGoLeftAnimationDrawable = (AnimationDrawable) mSelectedView.getDrawable();

    mSelectedView.setImageResource(R.drawable.anim_run_right);
    mGoRightAnimationDrawable = (AnimationDrawable) mSelectedView.getDrawable();

    mSelectedView.setVisibility(INVISIBLE);
    LayoutParams lp = new LayoutParams(selectedDrawable.getBitmap().getWidth(), selectedDrawable.getBitmap().getHeight());
    mSelectedView.setLayoutParams(lp);
    mSelectedView.setImageDrawable(selectedDrawable);
    addView(mSelectedView);

    mOccupiedView = new ImageView(getContext());
    mOccupiedView.setAdjustViewBounds(true);
    mOccupiedView.setScaleType(ImageView.ScaleType.FIT_XY);
    LayoutParams lp2 = new LayoutParams(occupiedDrawableLeft.getBitmap().getWidth(), occupiedDrawableLeft.getBitmap().getHeight());
    mOccupiedView.setLayoutParams(lp2);
    mOccupiedView.setVisibility(INVISIBLE);
    addView(mOccupiedView);

    mDropView = new ImageView(getContext());
    mDropView.setAdjustViewBounds(true);
    mDropView.setScaleType(ImageView.ScaleType.FIT_XY);
    float occupiedScale = getOccupiedScale(new BitmapDrawable(getResources(),
            BitmapFactory.decodeResource(getResources(), R.mipmap.ic_unselected)));
    MyLayoutParams lp3 = new MyLayoutParams((int) (mDropLeftAnimationDrawable.getIntrinsicWidth() * occupiedScale),
            (int) (mDropLeftAnimationDrawable.getIntrinsicHeight() * occupiedScale));
    mDropView.setLayoutParams(lp3);
    mDropView.setVisibility(INVISIBLE);
    addView(mDropView);

    mDropTouchView = new View(getContext());
    mDropTouchView.setLayoutParams(lp);
    mDropTouchView.setOnTouchListener(mDropTouchListener);
    addView(mDropTouchView);
}

源代码18 项目： FakeWeather 文件： WeatherChartView.java

private void letItGo() {
    removeAllViews();
    final LinearLayout dateTitleView = new LinearLayout(getContext());
    dateTitleView.setLayoutParams(rowParams);
    dateTitleView.setOrientation(HORIZONTAL);
    dateTitleView.setLayoutTransition(transition);
    dateTitleView.removeAllViews();

    final LinearLayout iconView = new LinearLayout(getContext());
    iconView.setLayoutParams(rowParams);
    iconView.setOrientation(HORIZONTAL);
    iconView.setLayoutTransition(transition);
    iconView.removeAllViews();

    final LinearLayout weatherStrView = new LinearLayout(getContext());
    weatherStrView.setLayoutParams(rowParams);
    weatherStrView.setOrientation(HORIZONTAL);
    weatherStrView.setLayoutTransition(transition);
    weatherStrView.removeAllViews();

    List<Integer> minTemp = new ArrayList<>();
    List<Integer> maxTemp = new ArrayList<>();
    for (int i = 0; i < dailyForecastList.size(); i++) {
        final TextView tvDate = new TextView(getContext());
        tvDate.setGravity(Gravity.CENTER);
        tvDate.setTextSize(TypedValue.COMPLEX_UNIT_SP, 10);
        tvDate.setTextColor(getResources().getColor(R.color.colorTextDark));
        tvDate.setVisibility(INVISIBLE);
        final TextView tvWeather = new TextView((getContext()));
        tvWeather.setGravity(Gravity.CENTER);
        tvWeather.setTextSize(TypedValue.COMPLEX_UNIT_SP, 10);
        tvWeather.setTextColor(getResources().getColor(R.color.colorTextDark));
        tvWeather.setVisibility(INVISIBLE);
        final ImageView ivIcon = new ImageView(getContext());
        ivIcon.setAdjustViewBounds(true);
        ivIcon.setScaleType(ImageView.ScaleType.FIT_CENTER);
        int padding = SizeUtils.dp2px(getContext(), 10);
        int width = SizeUtils.getScreenWidth(getContext()) / dailyForecastList.size();
        LayoutParams ivParam = new LayoutParams(width, width);
        ivParam.weight = 1;
        ivIcon.setLayoutParams(ivParam);
        ivIcon.setPadding(padding, padding, padding, padding);
        ivIcon.setVisibility(INVISIBLE);
        tvDate.setText(dailyForecastList.get(i).getDate());
        tvWeather.setText(dailyForecastList.get(i).getTxt());
        WeatherUtil.getInstance().getWeatherDict(dailyForecastList.get(i).getCode()).observeOn(AndroidSchedulers.mainThread()).subscribe(new SimpleSubscriber<WeatherBean>() {
            @Override
            public void onNext(WeatherBean weatherBean) {
                Glide.with(getContext()).load(weatherBean.getIcon()).diskCacheStrategy(DiskCacheStrategy.ALL).into(ivIcon);
            }
        });
        minTemp.add(Integer.valueOf(dailyForecastList.get(i).getMinTemp()));
        maxTemp.add(Integer.valueOf(dailyForecastList.get(i).getMaxTemp()));
        weatherStrView.addView(tvWeather, cellParams);
        dateTitleView.addView(tvDate, cellParams);
        iconView.addView(ivIcon);
        this.postDelayed(new Runnable() {
            @Override
            public void run() {
                tvDate.setVisibility(VISIBLE);
                tvWeather.setVisibility(VISIBLE);
                ivIcon.setVisibility(VISIBLE);
            }
        }, 200 * i);
    }
    addView(dateTitleView);
    addView(iconView);
    addView(weatherStrView);
    final ChartView chartView = new ChartView(getContext());
    chartView.setData(minTemp, maxTemp);
    chartView.setPadding(0, SizeUtils.dp2px(getContext(), 16), 0, SizeUtils.dp2px(getContext(), 16));
    addView(chartView, chartParams);
}

源代码19 项目： commcare-android 文件： MediaLayout.java

private View setupImage(String imageURI, String bigImageURI) {
    View mediaPane = null;
    try {
        int[] maxBounds = getMaxCenterViewBounds();
        final String imageFilename = ReferenceManager.instance().DeriveReference(imageURI).getLocalURI();
        final File imageFile = new File(imageFilename);
        if (imageFile.exists()) {
            Bitmap b = MediaUtil.inflateDisplayImage(getContext(), imageURI, maxBounds[0],
                    maxBounds[1]);
            if (b != null) {
                ImageView mImageView = new ImageView(getContext());
                if (useResizingImageView()) {
                    mImageView = new ResizingImageView(getContext(), imageURI, bigImageURI);
                    mImageView.setAdjustViewBounds(true);
                    mImageView.setMaxWidth(maxBounds[0]);
                    mImageView.setMaxHeight(maxBounds[1]);
                } else {
                    mImageView.setScaleType(ImageView.ScaleType.CENTER);
                }
                mImageView.setPadding(10, 10, 10, 10);
                if (imageFilename.toLowerCase().endsWith(IMAGE_GIF_EXTENSION)) {
                    Glide.with(mImageView).asGif()
                            .override(b.getWidth(), b.getHeight())
                            .load(imageFilename)
                            .into(mImageView);
                    b.recycle();
                } else {
                    mImageView.setImageBitmap(b);
                }
                mImageView.setId(IMAGE_VIEW_ID);
                mediaPane = mImageView;
            }
        } else {
            // An error hasn't been logged. We should have an image, but the file doesn't
            // exist.
            mediaPane = getMissingMediaView(imageURI,
                    StringUtils.getStringRobust(getContext(), R.string.video_download_prompt),
                    true);
        }
    } catch (InvalidReferenceException e) {
        Log.e(TAG, "image invalid reference exception");
        e.printStackTrace();
    }
    return mediaPane;
}

源代码20 项目： commcare-android 文件： SignatureWidget.java

public SignatureWidget(Context context, FormEntryPrompt prompt, PendingCalloutInterface pic) {
    super(context, prompt);

    this.pendingCalloutInterface = pic;

    mInstanceFolder =
            FormEntryInstanceState.mFormRecordPath.substring(0,
                    FormEntryInstanceState.mFormRecordPath.lastIndexOf("/") + 1);

    setOrientation(LinearLayout.VERTICAL);

    mErrorTextView = new TextView(context);
    mErrorTextView.setText("Selected file is not a valid image");

    // setup Blank Image Button
    mSignButton = new Button(getContext());
    WidgetUtils.setupButton(mSignButton,
            StringUtils.getStringSpannableRobust(getContext(), R.string.sign_button),
            mAnswerFontSize,
            !prompt.isReadOnly());

    // launch capture intent on click
    final FormIndex questionIndex = prompt.getIndex();
    mSignButton.setOnClickListener(v -> launchSignatureActivity(questionIndex));


    // finish complex layout
    addView(mSignButton);
    addView(mErrorTextView);

    // and hide the sign button if read-only
    if (prompt.isReadOnly()) {
        mSignButton.setVisibility(View.GONE);
    }
    mErrorTextView.setVisibility(View.GONE);

    // retrieve answer from data model and update ui
    mBinaryName = prompt.getAnswerText();

    // Only add the imageView if the user has signed
    if (mBinaryName != null) {
        mImageView = new ImageView(getContext());
        Display display =
                ((WindowManager)getContext().getSystemService(Context.WINDOW_SERVICE))
                        .getDefaultDisplay();
        int screenWidth = display.getWidth();
        int screenHeight = display.getHeight();

        File f = new File(mInstanceFolder + File.separator + mBinaryName);

        if (f.exists()) {
            Bitmap bmp = MediaUtil.getBitmapScaledToContainer(f, screenHeight, screenWidth);
            if (bmp == null) {
                mErrorTextView.setVisibility(View.VISIBLE);
            }
            mImageView.setImageBitmap(bmp);
        } else {
            mImageView.setImageBitmap(null);
        }

        mImageView.setPadding(10, 10, 10, 10);
        mImageView.setAdjustViewBounds(true);
        mImageView.setOnClickListener(v -> launchSignatureActivity(questionIndex));

        addView(mImageView);
    }
}

方法所在类

android.widget.ImageView