pinchzoom

问题 I am trying to use both scalegesture listener and gesturelistener in the view. Everything works perfectly if the scale is 1 but if the scale is set to some other value, the image jerks to a new position and then scales smoothly. Part of my code looks like as follows: public class SimpleView extends View { Bitmap image; ScaleGestureDetector scaleGesture; GestureDetector gestures; float touchX, touchY; float horizontalOffset; float verticalOffset; float scale; public SimpleView(Context context)

问题 I need to add a pinch zoom for that gridview.I didn't find any samples regarding to add a pinch zoom in gridview.So far my layout looks like this.I need to add a pinch zoom to that gridview. activity_main.xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/relativeLayout" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" > <LinearLayout android:id="@+id

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: android multitouch image zooming? how to implement pinch zooming on a Imageview, programmatically created in android ? 回答1: See this : http://vivin.net/2011/12/04/implementing-pinch-zoom-and-pandrag-in-an-android-view-on-the-canvas/ and How can I get zoom functionality for images? also see : http://androidtrainningcenter.blogspot.se/2012/04/pinching-zoom-in-android-image-view-or.html and : http://www

问题 I have an activity with LinearLayout as its main Layout. In that layout, there is a button that adds a View (R.layout.motor_block) to the main layout (R.id.layout): LayoutInflater inflater = (LayoutInflater)this.getSystemService( Context.LAYOUT_INFLATER_SERVICE ); View iv = inflater.inflate( R.layout.motor_block, null ); RelativeLayout rl = (RelativeLayout) findViewById(R.id.layout); rl.addView(iv); This works fine, but when I add more Views, the screen gets filled up with them so I need a

问题 I'm trying to figure out how to reset the zoom level in a webpage for ios. It seems that when the user does a pinch zoom in/out the zoom feature no longer works. I want pinch gestures, but want to programatically reset the zoom. Anyone have ideas on changing zoom dynamically with Javascript/jQuery? <meta id="viewportMeta" name="viewport" content="user-scalable=1, initial-scale=0.5, maximum-scale=0.5, minimum-scale=0.5" /> $(document).ready(function () { $("#zoomOut").click(function(){ $('meta

问题 I have in my layout recycler view for gallery application. I want to incorporate a pinch touch event listner such that the recycler view column no. increases or decreases on pich in and out. I have seen this type of interface in many gallery application. What is the best way to acheive this so that the transition is smooth. Small Video link :- http://sendvid.com/s68fiqpd I tried using below code (as provided by @Yogesh Rathi) but results is not what I want to achieve. import android.content

问题 This question already has an answer here : Make UICollectionView zoomable? (1 answer) Closed 5 years ago . I am confused. I have a UICollectionView . I have my own UICollectionViewLayout subclass (iow, I am not using the Flow thing). UICollectionView instance is a subclass of UIScrollView . It adds multiple subviews. But questions like Properly zooming a UIScrollView that contains many subviews seem to say that scrollable views should just have one subview to "scroll the whole view". Seems

问题 I have a working JQM application that I'd like to display some images in. The images currently are in their own iframe so they can be scrolled separately from the app. I'd like to be able to pinch zoom only the images within the iframe as well. I realize if I adjust the following code snippet that I can enable pinch zoom but this enabled it for the entire application. <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no;" /> By removing

问题 Can multi-touch events be tested on the Android Emulator? Or is there any way to test this without an actual device? I am using the 2.0 sdk and want to test zoom-in/zoom-out with two fingers. 回答1: UPDATE: Yes, now there is (not for the 2.x Android, but the latest ones). In case people still searching with this function, if you are using default emulator from android studio, for mac user you can hold command button , and for windows/linux i believe it is alt button while left clicking with

问题 I want to implement Pinch Zoom on Imageview, with in View Pager similar to Default Android Gallery. I have found multiple source over GitHub, But the zoom and sliding just work for only first image. What I have tried: 1.) TouchImageView 2.) PhotoView 3.) Android Touch Gallery All the above links works fine for single image view. But when it comes to Images in View pager, They have some glitches and only works fine for first image in the View Pager. When we scroll over to 3rd 4th image in view