下面列出了android.widget.ImageView#getTag ( ) 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。
static void setBitmapForView(View view, Bitmap bitmap, String url, boolean doAnim) {
if (view != null && bitmap != null && !TextUtils.isEmpty(url) && !bitmap.isRecycled() && view.getTag(R.id.view_tag) != null && view.getTag(R.id.view_tag).toString().equals(url)) {
view.setTag(R.id.view_result, Boolean.valueOf(true));
if (view instanceof ImageView) {
ImageView imageView = (ImageView) view;
if (imageView.getTag(R.id.imageview_atts) == null || !imageView.getTag(R.id.imageview_atts).toString().contains("background")) {
if (imageView.getTag(R.id.scale_type) instanceof ScaleType) {
imageView.setScaleType((ScaleType) imageView.getTag(R.id.scale_type));
} else {
imageView.setScaleType(ScaleType.FIT_XY);
}
imageView.setImageBitmap(bitmap);
} else {
view.setBackgroundDrawable(new BitmapDrawable(bitmap));
}
} else {
view.setBackgroundDrawable(new BitmapDrawable(bitmap));
}
if (doAnim) {
view.startAnimation(AnimationUtils.loadAnimation(BaseApplication.getInstance(), R.anim.fade_in));
}
}
}
@Override
public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) {
if (loadedImage != null) {
ImageView imageView = (ImageView) view;
String viewTag = (String)imageView.getTag();
if(!TextUtils.isEmpty(viewTag)) {
if(viewTag.equals(imageUri)) {
((ImageView) view).setImageBitmap(loadedImage);
Log.i(TAG, "hit tag");
} else{
Log.i(TAG, "miss tag");
}
} else {
Log.i(TAG, "have not tag");
((ImageView) view).setImageBitmap(loadedImage);
}
}
}
public void setCurrItem(int position) {
if (mImageViews != null) {
for (int i = 0; i < mImageViews.length; i++) {
if (style == STYLE_DOT) {
mImageViews[i].setImageDrawable(getGradientDrawable(position == i ? focusColor : norColor, radius));
} else if (style == STYLE_IMG) {
ImageView imageView = mImageViews[i];
if (imageView.getTag(R.id.TANGRAM_BANNER_INDICATOR_POS) == null) {
continue;
} else {
imageView.setTag(R.id.TANGRAM_BANNER_INDICATOR_POS, null);
ImageUtils.doLoadImageUrl(imageView, norUrl);
}
}
}
mImageViews[currentItemPos].setTag(R.id.TANGRAM_BANNER_INDICATOR_POS, currentItemPos);
if (style == STYLE_IMG) {
ImageUtils.doLoadImageUrl(mImageViews[currentItemPos], focusUrl);
}
}
}
public void deleteLast() {
int size = data.size();
if (size <= 0) {
return;
}
data.remove(size - 1);
final ImageView iv = (ImageView) ((FrameLayout) getChildAt(size - 1)).getChildAt(0);
if (iv.getVisibility() == View.VISIBLE) {
ScaleAnimation anim = new ScaleAnimation(1, 0, 1, 0, Animation.RELATIVE_TO_SELF,
0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
anim.setDuration(300);
anim.setFillAfter(true);
iv.startAnimation(anim);
if (iv.getTag() != null && iv.getTag() instanceof HideIvRunnable) {
iv.removeCallbacks((Runnable) iv.getTag());
}
HideIvRunnable r = new HideIvRunnable(iv);
iv.setTag(r);
iv.postDelayed(r, 300);
}
}
/**
* Load a bitmap from the thumbnail cache. If the bitmap is not in the
* cache, it will be loaded from the disk. This method should either be
* called if the ImageView's size has already been set or inside a Runnable
* which is posted to the ImageView's message queue.
*/
public void loadThumbnailBitmap(ImageWorkerTaskResource source,
ImageView target, int length) {
final int defaultCoverResource = getDefaultCoverResource(target
.getContext());
final String cacheKey;
if (source != null && (cacheKey = source.getImageLoaderCacheKey()) != null) {
final Object currentTag = target.getTag(R.id.imageloader_key);
if (currentTag == null || !cacheKey.equals(currentTag)) {
target.setTag(R.id.imageloader_key, cacheKey);
CachedBitmap cBitmap = getBitmapFromThumbnailCache(cacheKey);
if (cBitmap != null && cBitmap.getLength() >= length) {
target.setImageBitmap(cBitmap.getBitmap());
} else {
target.setImageResource(defaultCoverResource);
BitmapDecodeWorkerTask worker = new BitmapDecodeWorkerTask(
handler, target, source, length, IMAGE_TYPE_THUMBNAIL);
executor.submit(worker);
}
}
} else {
target.setImageResource(defaultCoverResource);
}
}
@Override
protected void onCancelled(Bitmap bitmap) {
if (imageViewReference != null) {//
ImageView imageView = imageViewReference.get();
if (imageView != null
&& imageView.getTag() != null
&& (imageView.getTag() instanceof FileDowloadProgressListener)) {
FileDowloadProgressListener imageProgressListener = (FileDowloadProgressListener) imageView
.getTag();
imageProgressListener.onCancel();
}
}
super.onCancelled(bitmap);
synchronized (mPauseWorkLock) {
mPauseWorkLock.notifyAll();
}
}
@Override
protected void onProgressUpdate(Object... values) {
if (!isCancelled()) {
if (imageViewReference != null && values != null
&& values.length > 0) {
ImageView imageView = imageViewReference.get();
if (imageView != null
&& imageView.getTag() != null
&& (imageView.getTag() instanceof FileDowloadProgressListener)) {
FileDowloadProgressListener imageProgressListener = (FileDowloadProgressListener) imageView
.getTag();
if (values[0] instanceof FileDowloadProgressListener.ProgressValue) {
FileDowloadProgressListener.ProgressValue v = (FileDowloadProgressListener.ProgressValue) values[0];
if (v.getDownloadType() == FileDowloadProgressListener.DownloadType.ERROR) {
imageView.setImageDrawable(null);
}
imageProgressListener.onProgress(v);
}
}
}
}
super.onProgressUpdate(values);
}
public ImageContainer get(String requestUrl, ImageView imageView, Drawable placeHolder, int maxWidth, int maxHeight) {
// Find any old image load request pending on this ImageView (in case this view was
// recycled)
ImageContainer imageContainer = imageView.getTag() != null && imageView.getTag() instanceof ImageContainer ? (ImageContainer) imageView.getTag() : null;
// Find image url from prior request
String recycledImageUrl = imageContainer != null ? imageContainer.getRequestUrl() : null;
// If the new requestUrl is null or the new requestUrl is different to the previous
// recycled requestUrl
if (requestUrl == null || !requestUrl.equals(recycledImageUrl)) {
if (imageContainer != null) {
// Cancel previous image request
imageContainer.cancelRequest();
imageView.setTag(null);
}
if (requestUrl != null) {
// Queue new request to fetch image
imageContainer = get(requestUrl, getImageListener(mResources, imageView, placeHolder, mFadeInImage), maxWidth, maxHeight);
// Store request in ImageView tag
imageView.setTag(imageContainer);
} else {
imageView.setImageDrawable(placeHolder);
imageView.setTag(null);
}
}
return imageContainer;
}
private static void loadImageFromCacheFile(ImageView imageView, File file, String tag) {
if (!(imageView.getTag() instanceof String)) return;
if (!imageView.getTag().equals(tag)) return;
try {
FileInputStream fis = new FileInputStream(file);
Bitmap bitmap = BitmapFactory.decodeStream(fis);
imageView.setImageBitmap(bitmap);
} catch (Exception e) {
e.printStackTrace();
}
}
static ImageLoadListener getImageLoadListener(ImageView view) {
if(view != null) {
ViewData data = (ViewData) view.getTag();
if(data != null && data.mListener != null) {
return data.mListener;
}
}
return NULL_LISTENER;
}
private static boolean isAlreadyProcessed(ImageView imageView, Uri uri) {
if(imageView != null) {
PhotoViewTag vt = (PhotoViewTag) imageView.getTag(TAG_PHOTO_INFOS);
return (vt != null && UriUtils.areEqual(uri, vt.uri));
}
return true;
}
/**
* Log the user out of all UT web services.
*/
private void logout() {
app.logoutAll();
for (ImageView ib : featureButtons) {
enableFeature(ib);
if (((DashboardButtonData) ib.getTag()).loginProgress != null) {
((DashboardButtonData) ib.getTag()).loginProgress.setVisibility(View.GONE);
}
}
loginFailed = false;
resetChecks();
}
/**
* Sets a clicked cell on/off.
*
* @param image An image of a clicked cell.
* @param pos Position of a clicked cell.
* @return True, if cell is on and false otherwise.
*/
private boolean toggleLED(ImageView image, int pos) {
boolean isOn;
//Toast.makeText(this, "Pos :" + pos, Toast.LENGTH_SHORT).show();
int state = (Integer) image.getTag(R.id.ledState);
if(state != 1) {
DEVICE_CODE_ARRAY[pos] = 1;
image.setBackground(getApplication().getResources().getDrawable(R.drawable.red_white_led_btn));
image.setTag(R.id.ledState, 1);
isOn = true;
} else {
DEVICE_CODE_ARRAY[pos] = 0;
image.setBackground(getApplication().getResources().getDrawable(R.drawable.white_red_led_btn));
image.setTag(R.id.ledState, 0);
isOn = false;
// Update the code to consider the still ON LED below the toggled one
if(pos < 20) {
DEVICE_CODE_ARRAY[pos + 5] = 1;
}
}
image.setSelected(false);
int position = (Integer) image.getTag(R.id.position);
image.setContentDescription("" + position + getLEDStatus(pos));
return isOn;
}
public static ValidationStatus validate(ImageView imageView) {
if (!(imageView.getTag(R.id.v_required) instanceof String) || !(imageView.getTag(R.id.error) instanceof String)) {
return new ValidationStatus(true, null);
}
Boolean isRequired = Boolean.valueOf((String) imageView.getTag(R.id.v_required));
if (!isRequired) {
return new ValidationStatus(true, null);
}
Object path = imageView.getTag(R.id.imagePath);
if (path instanceof String && !TextUtils.isEmpty((String) path)) {
return new ValidationStatus(true, null);
}
return new ValidationStatus(false, (String) imageView.getTag(R.id.error));
}
/**
* 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 ) {
Object tag = view.getTag();
if(tag != null && tag instanceof String){
String baseURL = (String) tag;
if(baseURL.equals(response.getRequestUrl())){
view.setImageBitmap(response.getBitmap());
}
}else {
view.setImageBitmap(response.getBitmap());
}
} else if (defaultImageResId != 0) {
view.setImageResource(defaultImageResId);
}
}
};
}
public void loadMediaThumbnail(final BoxItem item, final ImageView targetImage) {
if (targetImage.getTag() == null){
ViewData data = new ViewData(TYPE_MEDIA, null);
targetImage.setTag(data);
}
loadThumbnail(item, targetImage);
}
/**
* Reset the checkmark overlays that act as temp login indicators to
* ensure they show the correct login status.
*/
private void resetChecks() {
boolean persistentLoginEnabled = settings.getBoolean(getString(R.string.pref_logintype_key), false);
for (ImageView featureButton : featureButtons) {
DashboardButtonData button = (DashboardButtonData) featureButton.getTag();
if (button.authCookie != null) {
button.checkOverlay.setVisibility(persistentLoginEnabled ? View.GONE : View.VISIBLE);
if (button.authCookie.hasCookieBeenSet()) {
button.checkOverlay.setAlpha(1f);
} else {
button.checkOverlay.setAlpha(CHECK_TRANSLUCENT_OPACITY);
}
}
}
}
@Override
public void bindView(View view, final Context context, Cursor cursor) {
final ImageView imageView = (ImageView) view;
ViewHolder holder = (ViewHolder) imageView.getTag();
int width = cursor.getInt(holder.widthIndex);
int height = cursor.getInt(holder.heightIndex);
final String url = cursor.getString(cursor.getColumnIndex(Photo.image_url));
if (width == 0 || height == 0) { // fall back, if width or height not provide
width = (int) mFactor;
height = (int) (Constants.GOLDEN_RATIO * width);
} else {
height = (int) (mFactor * height / width);
}
Picasso.with(context)
.load(url)
.placeholder(mColors[((int) (Math.random() * N))])
.resize((int) mFactor, height)
.into(imageView);
final String name = cursor.getString(holder.nameIndex);
view.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// clear
imageView.getDrawable().clearColorFilter();
imageView.invalidate();
// intent
Intent intent = new Intent(context, HelloActivity.class);
intent.setAction(HelloActivity.ACTION_FROM_GRID);
intent.putExtra(Photo.image_url, url);
intent.putExtra(Photo.name, name);
context.startActivity(intent);
}
});
}
/**
* Gets the image view bitmap loader.
*
* @param imageView the image view
*/
public static BitmapLoader getBitmapLoader(ImageView imageView) {
if (imageView != null) {
Object object = imageView.getTag();
if (object instanceof WeakReference<?>) {
@SuppressWarnings("unchecked")
WeakReference<BitmapLoader> bitmapLoaderReference = (WeakReference<BitmapLoader>) object;
return bitmapLoaderReference.get();
}
}
return null;
}
private void requestForImageView(ImageView imageView,final SingleConfig config) {
/* config.setBitmapListener(new SingleConfig.BitmapListener() {
@Override
public void onSuccess(Bitmap bitmap) {
imageView.setImageBitmap(bitmap);
}
@Override
public void onFail(Throwable e) {
if(config.getErrorResId() >0){
imageView.setImageResource(config.getErrorResId());
}
}
});
requestBitmap(config);
return;*/
checkWrapContentOrMatchParent(config);
//GenericDraweeHierarchy hierarchy=null;
GenericDraweeHierarchy hierarchy = GenericDraweeHierarchyBuilder.newInstance(imageView.getContext().getResources()).build();
setupHierarchy(hierarchy,config);
// 数据-model
ImageRequest request = buildRequest(config);
//设置controller
DraweeHolder draweeHolder= (DraweeHolder) imageView.getTag(R.id.fresco_drawee);
PipelineDraweeControllerBuilder controllerBuilder = buildPipelineDraweeController(config,request);
if (draweeHolder == null) {
draweeHolder=DraweeHolder.create(hierarchy,imageView.getContext());
}else {
controllerBuilder.setOldController(draweeHolder.getController());
draweeHolder.setHierarchy(hierarchy);
}
draweeHolder.setController(controllerBuilder.build());
//imageview的特殊处理
ViewStatesListener mStatesListener=new ViewStatesListener(draweeHolder);
imageView.addOnAttachStateChangeListener(mStatesListener);
// 判断是否ImageView已经 attachToWindow
if (ViewCompat.isAttachedToWindow(imageView)) {
draweeHolder.onAttach();
}
//设置scaletype
//setImageViewScaleType(imageView,config);
// if (ViewC.isAttachedToWindow()) {
// draweeHolder.onAttach();
// }
// 保证每一个ImageView中只存在一个draweeHolder
imageView.setTag(R.id.fresco_drawee,draweeHolder);
// 拿到数据
imageView.setImageDrawable(draweeHolder.getTopLevelDrawable());
}