horizontalscrollview | 易学教程

Click event of HorizontalScrollView

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问题 I have a horizontalscrollview inside which i have a bunch of images. Now i need to detect the click event in case any of the image is clicked within it. In short, i need the index of the image placed inside the horizontalscrollview, which was clicked. <HorizontalScrollView android:id="@+id/horizontalScrollView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/bgcolor" > <LinearLayout android:layout_width="match_parent" android:layout

How to set the linear layout width in a HorizontalScrollView?

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问题 I have a LinearLayout (let's call it A )that it's width set to fill_parent , this layout contains a bunch of another LinearLayouts (let's call them B ), I want the screen only display four B 's so i assigned the weight_sum of A as 4 and assigned each one of B 's as 1 , now i want to add a HorizontalScrollView so that if i have like 6 layouts of B only four will be displayed and the other two will be scrolled. I build this HorizontalScrollView to contain the A layout(as the

horizontalscrollview inside viewpager

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问题 I have a viewpager with 2 to 4 pages. One of these pages presentes data in table form. To do so i use a vertical scroll and a horizontal scroll. Due to conflicts between horizontalscrollview and viewpager, sometimes, scrolling does nothing. I want to scroll the page while it has scroll left. When it reaches the edge, another swipe gesture will make it change the page of view pager, following guideline from http://developer.android.com/design/patterns/swipe-views.html where it states: "If a

Android: ListView in HorizontalScrollView performance issues

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问题 I have a need for both horizontal and vertical scrolling of some data in my app. I've overridden HorizontalScrollView and I've allowed it to take an Adapter to populate its data. It behaves much like a horizontal ListView would behave, except I'm not doing any view recycling. Each item in my custom HorizontalScrollView is a ListView whose items are also populated with an Adapter . Each item in the ListView is a complex view. I'm able to scroll horizontally, and vertically just fine except

scaling around mid point of two fingers in android

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问题 I have a HorizontalScrollView in which there are multiple views inside it. I have implemented pinch zoom gesture in which multiple views, which are between my two fingers, are scaled. But I am facing one glitch. When I am doing pinch zoom, the mid point of pinch zoom is moving but for user experience I want this point to be remain fixed and other things should adjust itself while scaling so that mid point remains static. Can someone tell me how to do it. onDraw() method of custom view is Rect

implement HorizontalScrollView inside ListView

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问题 I implement successful HorizontalScrollView using this sample code and this . which will fetch the data from a server but now I'm trying to make a horizontal scroll view inside a ListView , i not find the right way!!! So that each element of list Will contain this : > RelativeLayout(vertical) > RelativeLayout > ImageView > TextView > HorizontalScrollView > LinearLayout (horizontal) MainActivity actorsList = new ArrayList<Actors>(); new JSONAsyncTask().execute("http://microblogging.wingnity

HorizontalScrollView custom adapter?

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问题 I'm trying to make a Gallery widget using HorizontalScrollView , So inside the HorizontalScrollView I add ImageView s, and the problem is that I'm going to add 600+ images! Can I make some kind of a custom adapter in order to override the GetView method and utilize convertView in order to make the app smoother and avoid adding 600+ views at the same time? 回答1: HorizontalScrollView can contain only one View , so you have to draw that whole View anytime you are drawing any part of it. This

HorizontalScrollView: CustomAdapter with getView() doesn't reuse convertViews like ListView

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问题 In one of my past projects I implemented a "Time Picker Carousel". It is based on a HorizontalScrollView . The user can pick a time while scrolling this view. The time value is calculated from the X-Offset of the HorizontalScrollView . I wanted to share this project at github, but while cleaning up the code I realized some bad performance issue. The HorizontalScrollView is populated with a custom ArrayAdapter . The getView() uses a Holder for the convertView . I thought it might work as an

Click event of HorizontalScrollView

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I have a horizontalscrollview inside which i have a bunch of images. Now i need to detect the click event in case any of the image is clicked within it. In short, i need the index of the image placed inside the horizontalscrollview, which was clicked. <HorizontalScrollView android:id="@+id/horizontalScrollView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="@drawable/bgcolor" > <LinearLayout android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal" > <ImageView android:id="@+id/imageview1" android

Horizontal Scroll View with Custom View child

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问题 I am trying to implement a custom view inside of a HorizontalScrollView parent. The custom view repeatedly draws a line to its Canvas based on timing from a Handler. I want to set the visible width of the Custom view to be 1207px x 548px, but I want the line to be able to extend beyond what is visible and I want to allow the user to then be able to horizontally scroll to see more of the line. Before I was just surrounding my Custom View class with a frame layout with a fixed width and height,