android-imageview

问题 I am getting strange issue of White blank screen when i try to set image inside my image view after scaling it from bitmap. I am getting random size images from server , I just need to show them in my image view without loose in quality of image. i have taken one layout and add image view dynamically through code. Here is what i am doing in code :- Getting Url form server and scaling it accordingly :- url="http://www.petstory.co/attached_king_photos/hotel/7/attached

问题 I have searched a lot, but never found the right answer. Which way is better/faster to display small or big images? 回答1: This may not directly answer your question, but have you tried using Volley's NetworkImageView class ? Recently, I used Volley in a large project to display images, and it was faster and more stable than anything I've seen before. Volley is a networking library for Android developed by the good guys at Google, and it includes image downloading out of the box. It handles

问题 I have setup 2 activities - one and two . For activity 1, I have a EditText and a button. When user open the app, it will show Activity One(just like the screenshot) to prompt user to key in a number. For example, 1 or 2. What I am trying to do is that: I want to display a ImageView in activity 2 when user key in a number in EditText follow by a click on the button in activity 1. If user key in 1, it will display 1.png in activity 2 If user key in 2, it will display 2.png in activity 2 If

问题 Currently, I am trying an application for receive and display views from another mobile. When views received, I will convert it as a bitmap, and use ImageView to display them like imageView.setImagebitmap(xxx). However, I found the API performance is not good. As I need display the continous images (not a video), is there any method to speed up the display? Thank you 回答1: You should consider using SurfaceView instead of ImageView . Every time you call ImageView.setImageBitmap new

问题 I want current X & Y co ordinates of an ImageView on onCreate of Activity , is there any solution for the same ? Please share your idea on same. 回答1: Actually, when you call setContentView() the Android nutshell starts the views drawing on surface, Which you can observe on using viewTrewwObserve So you can not get the height and width of ImageView in onCreate() as its not currently draw yet. You can use, (Not tried) imageView.getViewTreeObserver().addOnGlobalLayoutListener( new

问题 I have image like pieces of pizza, and I want implement onClickListener only when I click on pizza? 回答1: pizzaImageView.setClickable(true); pizzaImageView.setOnClickListener(pizzaClickListener); private OnClickListener pizzaClickListener = new OnClickListener() { public void onClick(View view){ //Do code here } }; 来源： https://stackoverflow.com/questions/16315610/how-to-implement-onclicklistener-only-when-is-image-click

问题 I am trying to make a gallery app.I have two buttons for 'next' and 'back' when i press on next button the i need to show the next image also i need to change the images by swiping. I have tried with image adapter. but i dont know to change the images with buttons. 回答1: Try to use this tutorial for your reference to implement the Gallery with buttons . In this tutorial I use Arrow buttons for next and previous . I implement some more functionality in this tutorial. like: thumb and full image

问题 I am using a AsyncTask (1) in another AsyncTask (2). AsyncTask 1 fetches online user data, counts the number of entries in the response and for each entry, in onPostExecute displays a username and runs a new AsyncTask (2) to fetch a image from a server and load it into a ImageView . This all happens in onPostExecute . This is working flawlessly, the user data is fetched and shown, and the images are shown one by one for each entry. However, the itteration through the array and the updating of

问题 I'm trying to implement a handle to scale a view in android. Instead of using something like multitouch I want to be able to resize an image with just one finger. Here is my activity code. I feel as though I am very close there are a five things that don't work properly. The scaling is off. It grows at a much faster rate than it should. Solved Thanks @Salauyou The view will only grow, and not shrink. Solved Thanks @Salauyou The handle view doesn't move with the image. Solved Thanks @Salauyou

问题 This question already has answers here : How to pick an image from gallery (SD Card) for my app? (10 answers) Closed 6 years ago . I have an imageview with a default image, I want when user click the imageview to open an image selector then he selects his image from sdcard then the image is being on the imageview, this is my imageview xml <ImageView android:id="@+id/ivImage" android:layout_width="100dip" android:layout_height="100dip" android:layout_marginLeft="10dip" android