下面列出了android.widget.ImageView#setImageBitmap ( ) 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。
/**
* The default implementation of ImageListener which handles basic functionality
* of showing a default image until the network response is received, at which point
* it will switch to either the actual image or the error image.
* @param view The imageView that the listener is associated with.
* @param defaultImageResId Default image resource ID to use, or 0 if it doesn't exist.
* @param errorImageResId Error image resource ID to use, or 0 if it doesn't exist.
*/
public static ImageListener getImageListener(final ImageView view,
final int defaultImageResId, final int errorImageResId) {
return new ImageListener() {
@Override
public void onErrorResponse(VolleyError error) {
if (errorImageResId != 0) {
view.setImageResource(errorImageResId);
}
}
@Override
public void onResponse(ImageContainer response, boolean isImmediate) {
if (response.getBitmap() != null) {
view.setImageBitmap(response.getBitmap());
} else if (defaultImageResId != 0) {
view.setImageResource(defaultImageResId);
}
}
};
}
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
LinearLayout contentView = new LinearLayout(this);
ImageView imageView0 = new ImageView(this);
imageView0.setImageBitmap(ShadowBitmapFactory.create("AndroidGodEye-Bitmap", null, new Point(200, 100)));
ImageView imageView1 = new ImageView(this);
imageView1.setImageBitmap(ShadowBitmapFactory.create("AndroidGodEye-Bitmap", null, new Point(200, 100)));
ImageView imageView2 = new ImageView(this);
imageView2.setImageBitmap(ShadowBitmapFactory.create("AndroidGodEye-Bitmap", null, new Point(200, 100)));
imageView3 = new ImageView(this);
imageView3.setImageBitmap(ShadowBitmapFactory.create("AndroidGodEye-Bitmap", null, new Point(200, 100)));
contentView.addView(imageView0);
contentView.addView(imageView1);
contentView.addView(imageView2);
contentView.addView(imageView3);
setContentView(contentView);
imageView0.measure(50, 50);
imageView0.layout(0, 0, 50, 50);
imageView1.measure(500, 500);
imageView1.layout(0, 0, 500, 500);
imageView2.measure(210, 95);
imageView2.layout(0, 0, 210, 95);
imageView3.measure(50, 50);
imageView3.layout(0, 0, 50, 50);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater inf = LayoutInflater.from(mContext);
view = inf.inflate(R.layout.list_item, null);
}
Item item = (Item) getItem(position);
TextView titleView = (TextView) view.findViewById(R.id.textTitle);
TextView summaryView = (TextView) view.findViewById(R.id.textSummary);
ImageView iv = (ImageView) view.findViewById(R.id.imageView);
titleView.setText(item.title);
summaryView.setText(item.summary);
if (item.image != null) {
iv.setImageBitmap(item.image);
} else {
iv.setImageDrawable(mContext.getResources().getDrawable(R.drawable.ic_noimage));
}
return view;
}
private void createFileName() {
LayoutInflater inflater = getLayoutInflater();
Bitmap resizedBitmap = Bitmap.createBitmap(favoriteIcon);
@SuppressLint("InflateParams") View alertLayout = inflater.inflate(R.layout.layout_shortcut, null);
shortcutNameEditText = alertLayout.findViewById(R.id.shortcut_name_edittext);
AlertDialog alertDialog = createExitDialog();
alertDialog.setTitle(R.string.add_home);
alertDialog.setView(alertLayout);
alertDialog.show();
shortcutNameEditText.setHint(webViewTitle);
ImageView imageShortcut = alertDialog.findViewById(R.id.fav_imageView);
if (imageShortcut != null) {
imageShortcut.setImageBitmap(StaticUtils.getCircleBitmap(resizedBitmap));
}else{
Log.d("Null", "");
}
alertDialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(ContextCompat.getColor(this, R.color.md_blue_600));
alertDialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextColor(Color.LTGRAY);
}
public void DisplayImage(String url, ImageView imageView) {
imageViews.put(imageView, url);
Bitmap bitmap = memoryCache.get(url);
if (bitmap != null) {
imageView.setImageBitmap(bitmap);
} else {
queuePhoto(url, imageView);
imageView.setImageDrawable(new ColorDrawable(Color.WHITE));
}
}
private void generateQRCode() {
try {
qrCode = new BarcodeEncoder().encodeBitmap(ADD_FRIEND_URL + uid,
BarcodeFormat.QR_CODE, 768, 768);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
ImageView image = new ImageView(this);
image.setImageBitmap(qrCode);
builder.setView(image);
dialog = builder.create();
} catch (Exception ignored) {
}
}
/**
* @param coverView 被覆盖的view，用于生产浮层View
* @return 需要跟随手势浮动的 View
*/
protected View createFloatView(View coverView) {
ImageView floatView = new ImageView(coverView.getContext());
coverView.destroyDrawingCache();
coverView.setDrawingCacheEnabled(true);
Bitmap bitmap = coverView.getDrawingCache();
if (bitmap != null && !bitmap.isRecycled()) {
floatView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
floatView.setImageBitmap(bitmap);
}
return floatView;
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
// Get the monster for the current row
Monster monster = mMonsterCursor.getMonster();
AssetManager manager = context.getAssets();
// Set up the text view
TextView monsterNameTextView = (TextView) view.findViewById(R.id.item_label);
ImageView monsterImage = (ImageView) view.findViewById(R.id.item_image);
RelativeLayout itemLayout = (RelativeLayout) view.findViewById(R.id.listitem);
String cellText = monster.getName();
String cellImage = "icons_monster/" + monster.getFileLocation();
monsterNameTextView.setText(cellText);
// Read a Bitmap from Assets
try {
InputStream open = manager.open(cellImage);
Bitmap bitmap = BitmapFactory.decodeStream(open);
// Assign the bitmap to an ImageView in this layout
monsterImage.setImageBitmap(bitmap);
} catch (IOException e) {
e.printStackTrace();
}
itemLayout.setTag(monster.getId());
itemLayout.setOnClickListener(new MonsterClickListener(context, monster.getId()));
}
@Override
protected void onPostExecute(Bitmap bitmap) {
if (isCancelled()) {
bitmap = null;
}
if (imageViewReference != null && bitmap != null) {
final ImageView imageView = imageViewReference.get();
final BitmapWorkerTask bitmapWorkerTask =
getBitmapWorkerTask(imageView);
if (this == bitmapWorkerTask && imageView != null) {
if (!mCardThumbnail.applyBitmap(imageView,bitmap))
imageView.setImageBitmap(bitmap);
sendBroadcast();
mLoadingErrorResource=false;
}
}else{
sendBroadcast(false);
if (mCardThumbnail!=null && mCardThumbnail.getErrorResourceId()!=0){
if (!mLoadingErrorResource){
//To avoid a loop
loadBitmap(mCardThumbnail.getErrorResourceId(), mImageView);
}
mLoadingErrorResource=true;
}
}
}
@NonNull
private ImageView updateScreenshotViewWithSnapshot(Bitmap snapshot) {
ImageView screenshotView = navigationView.findViewById(R.id.screenshotView);
screenshotView.setVisibility(View.VISIBLE);
screenshotView.setImageBitmap(snapshot);
return screenshotView;
}
/**
* Called when a row view is being updated.
*
* @param board
* @param rowView
* @param entry
*/
public void onRowViewUpdate(NotificationBoard board, RowView rowView, NotificationEntry entry) {
if (DBG) Log.v(TAG, "onRowViewUpdate - " + entry.ID);
ImageView iconView = (ImageView) rowView.findViewById(R.id.icon);
TextView titleView = (TextView) rowView.findViewById(R.id.title);
TextView textView = (TextView) rowView.findViewById(R.id.text);
TextView whenView = (TextView) rowView.findViewById(R.id.when);
ProgressBar bar = (ProgressBar) rowView.findViewById(R.id.progress);
if (entry.iconDrawable != null) {
iconView.setImageDrawable(entry.iconDrawable);
} else if (entry.smallIconRes != 0) {
iconView.setImageResource(entry.smallIconRes);
} else if (entry.largeIconBitmap != null) {
iconView.setImageBitmap(entry.largeIconBitmap);
}
titleView.setText(entry.title);
textView.setText(entry.text);
if (entry.showWhen) {
whenView.setText(entry.whenFormatted);
}
if (entry.progressMax != 0 || entry.progressIndeterminate) {
bar.setVisibility(View.VISIBLE);
bar.setIndeterminate(entry.progressIndeterminate);
if (!entry.progressIndeterminate) {
bar.setMax(entry.progressMax);
bar.setProgress(entry.progress);
}
} else {
bar.setVisibility(View.GONE);
}
}
public View createImageView(int imgResId){
ImageView imageView = new ImageView(this);
imageView.setLayoutParams(new CoolViewPager.LayoutParams());
imageView.setScaleType(ImageView.ScaleType.FIT_XY);
if(imgs.get(""+imgResId) != null){
imageView.setImageBitmap(imgs.get(""+imgResId));
}else{
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 2;
Bitmap bitmap = BitmapFactory.decodeResource(getResources(),imgResId,options);
imgs.put(""+imgResId,bitmap);
imageView.setImageBitmap(bitmap);
}
return imageView;
}
public static void getRoundedShape(ImageView scaleBitmapImageview) {
Drawable scaleDrawable = scaleBitmapImageview.getDrawable();
BitmapDrawable bitmapDrawable = ((BitmapDrawable) scaleDrawable);
Bitmap bitmap = bitmapDrawable.getBitmap();
Bitmap targetBitmap = null;
try {
int targetWidth = 100;
int targetHeight = 100;
targetBitmap = Bitmap.createBitmap(targetWidth, targetHeight,
Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(targetBitmap);
Path path = new Path();
path.addCircle(
((float) targetWidth - 1) / 2,
((float) targetHeight - 1) / 2,
(Math.min(((float) targetWidth), ((float) targetHeight)) / 2),
Path.Direction.CCW);
canvas.clipPath(path);
Bitmap sourceBitmap = bitmap;
canvas.drawBitmap(
sourceBitmap,
new Rect(0, 0, sourceBitmap.getWidth(), sourceBitmap
.getHeight()), new Rect(0, 0, targetWidth,
targetHeight), null);
} catch (Exception e) {
// e.printStackTrace();
}
scaleBitmapImageview.setImageBitmap(targetBitmap);
// return targetBitmap;
}
/**
* Add an action to set the image of an image view. Can be called multiple times.
*/
public BaseViewHolder setImageBitmap(int viewId, Bitmap bitmap) {
ImageView view = getView(viewId);
view.setImageBitmap(bitmap);
return this;
}
public void setImageBitmap(int viewId, Bitmap bitmap) {
ImageView target = findViewById(viewId);
target.setImageBitmap(bitmap);
}
/** display platform list */
public void afterPlatformListGot() {
int size = platformList == null ? 0 : platformList.length;
views = new View[size];
final int dp_24 = dipToPx(getContext(), 24);
LayoutParams lpItem = new LayoutParams(dp_24, dp_24);
final int dp_9 = dipToPx(getContext(), 9);
lpItem.setMargins(0, 0, dp_9, 0);
FrameLayout.LayoutParams lpMask = new FrameLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
lpMask.gravity = Gravity.LEFT | Gravity.TOP;
int selection = 0;
for (int i = 0; i < size; i++) {
FrameLayout fl = new FrameLayout(getContext());
fl.setLayoutParams(lpItem);
if (i >= size - 1) {
fl.setLayoutParams(new LayoutParams(dp_24, dp_24));
}
llPlat.addView(fl);
fl.setOnClickListener(this);
ImageView iv = new ImageView(getContext());
iv.setScaleType(ScaleType.CENTER_INSIDE);
iv.setImageBitmap(getPlatLogo(platformList[i]));
iv.setLayoutParams(new FrameLayout.LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
fl.addView(iv);
views[i] = new View(getContext());
views[i].setBackgroundColor(0xcfffffff);
views[i].setOnClickListener(this);
String platformName = platformList[i].getName();
for(Platform plat : platforms) {
if(platformName.equals(plat.getName())) {
views[i].setVisibility(View.INVISIBLE);
selection = i;
}
}
views[i].setLayoutParams(lpMask);
fl.addView(views[i]);
}
final int postSel = selection;
UIHandler.sendEmptyMessageDelayed(0, 333, new Callback() {
public boolean handleMessage(Message msg) {
HorizontalScrollView hsv = (HorizontalScrollView)llPlat.getParent();
hsv.scrollTo(postSel * (dp_24 + dp_9), 0);
return false;
}
});
}
private void refreshPanel(LinearLayout[] llCells, Object[] logos) {
int cellBack = R.getBitmapRes(page.getContext(), "ssdk_oks_classic_platform_cell_back");
int disableBack = R.getBitmapRes(page.getContext(), "ssdk_oks_classic_platfrom_cell_back_nor");
for (int i = 0; i < logos.length; i++) {
ImageView ivLogo = R.forceCast(llCells[i].getChildAt(0));
TextView tvName = R.forceCast(llCells[i].getChildAt(1));
if (logos[i] == null) {
ivLogo.setVisibility(View.INVISIBLE);
tvName.setVisibility(View.INVISIBLE);
llCells[i].setBackgroundResource(disableBack);
llCells[i].setOnClickListener(null);
} else {
ivLogo.setVisibility(View.VISIBLE);
tvName.setVisibility(View.VISIBLE);
llCells[i].setBackgroundResource(cellBack);
llCells[i].setOnClickListener(this);
llCells[i].setTag(logos[i]);
if (logos[i] instanceof CustomerLogo) {
CustomerLogo logo = R.forceCast(logos[i]);
if (logo.logo != null) {
ivLogo.setImageBitmap(logo.logo);
} else {
ivLogo.setImageBitmap(null);
}
if (logo.label != null) {
tvName.setText(logo.label);
} else {
tvName.setText("");
}
} else {
Platform plat = R.forceCast(logos[i]);
String name = plat.getName().toLowerCase();
int resId = R.getBitmapRes(ivLogo.getContext(),"ssdk_oks_classic_" + name);
if (resId > 0) {
ivLogo.setImageResource(resId);
} else {
ivLogo.setImageBitmap(null);
}
resId = R.getStringRes(tvName.getContext(), "ssdk_" + name);
if (resId > 0) {
tvName.setText(resId);
} else {
tvName.setText("");
}
}
}
}
}
/**
* load image into image view
*
* @param thumbernailPath
* @param iv
* @param position
* @return the image exists or not
*/
private boolean showImageView(final String thumbernailPath, final ImageView iv, final String localFullSizePath,final EMMessage message) {
// first check if the thumbnail image already loaded into cache
Bitmap bitmap = EaseImageCache.getInstance().get(thumbernailPath);
if (bitmap != null) {
// thumbnail image is already loaded, reuse the drawable
iv.setImageBitmap(bitmap);
return true;
} else {
new AsyncTask<Object, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(Object... args) {
File file = new File(thumbernailPath);
if (file.exists()) {
return EaseImageUtils.decodeScaleImage(thumbernailPath, 160, 160);
} else if (new File(imgBody.thumbnailLocalPath()).exists()) {
return EaseImageUtils.decodeScaleImage(imgBody.thumbnailLocalPath(), 160, 160);
}
else {
if (message.direct() == EMMessage.Direct.SEND) {
if (localFullSizePath != null && new File(localFullSizePath).exists()) {
return EaseImageUtils.decodeScaleImage(localFullSizePath, 160, 160);
} else {
return null;
}
} else {
return null;
}
}
}
protected void onPostExecute(Bitmap image) {
if (image != null) {
iv.setImageBitmap(image);
EaseImageCache.getInstance().put(thumbernailPath, image);
} else {
if (message.status() == EMMessage.Status.FAIL) {
if (EaseCommonUtils.isNetWorkConnected(activity)) {
new Thread(new Runnable() {
@Override
public void run() {
EMClient.getInstance().chatManager().downloadThumbnail(message);
}
}).start();
}
}
}
}
}.execute();
return true;
}
}
public void selectTo(int startPosition, int targetPostion){
ImageView startView = dotViews.get(startPosition);
ImageView targetView = dotViews.get(targetPostion);
startView.setImageBitmap(unselectedBitmap);
targetView.setImageBitmap(selectedBitmap);
}
public ViewHolderHelper setImageBitmap(int viewId, Bitmap bitmap) {
ImageView view = getView(viewId);
view.setImageBitmap(bitmap);
return this;
}