android-viewpager

问题 I have a pager adapter that suppose to inflate a complex view representing a calendar. It takes around ~350 ms to inflate each year of the calendar. To improve performance I would like to implement the same mechanism that exists in the ListView array adapter of recycling views ( convertView parameter in getView() ). Here is my current getView() from the adapter. @Override protected View getView(VerticalViewPager pager, final DateTileGrid currentDataItem, int position) { mInflater =

问题 This question already has answers here : RecyclerView with only one item displayed on screen [duplicate] (2 answers) Closed 9 months ago . I tried adding on Scroll listener for recycler view and made some logic but i am not able to swipe one item at a time. I did some search on internet but i got some third party library which has custom recycler view. Can we implement one item swipe at a time in recycler view? If yes Please tell how? One item swipe at a time like this image. 回答1: This is

问题 I want an example of tab like this I searched but just got this. viewpageindicator I couldn't use this source. Can someone tell me another example of tab with sliding option. I think the viewpageindicator is not the same as google plays tabs. cause when i'm scrolling in google plays page the line below tabs moves while scrolling, But in viewpageindicator it's not. Thank you 回答1: First you need to create an xml layout file with viewpager android.support.v4.view.ViewPager Then inflate this

问题 I am trying to achieve this in a ViewPager The first fragment (blue) is displayed and the beginning of the next fragment must be displayed as well, so the user understands he can swipe to switch views. The idea is scroll 20% of the screen programmatically to the left. Any thoughts are welcome EDIT: This is exactly what I need to to: the central view needs to overlap both side views 回答1: You can try adding this to your PageAdapter: public float getPageWidth(int position) { if (position == 0 ||

问题 I used viewpager class to display sets of images instead of gallery class as its deprecated and customized it to show the text by using the below code , the problem is the same text showed for all images , what im trying to get is : Different text for each image , which explain it , lets say we have 5 images , it must has 5 different text each one describe its image . any advice will be appreciated , thanks The code: ImagePager public class ImagePager extends Activity { @Override public void

问题 Is there a way to add a viewpager as a listview item? I want to add it as a "header" on top of my listview before all real list items follow. I tried using addHeaderView() or declaring multiple view types in my list adapter, however, the viewpager never shows up whatever way I try. Has anyone done something similar? Help! 回答1: Quoting Dianne Hackborn, ViewPager is "just not intended to be used as an item in a list" 回答2: Do not use wrap_content , try to calculate and set ViewPager size

问题 I want to allow the user swipe in a ViewPager only from right to left. So once he passed a page he can't come back to it. How can this be done? I tried this solution: public class CustomViewPager extends ViewPager { float lastX = 0; boolean lockScroll = false; public CustomViewPager(Context context, AttributeSet attrs) { super(context, attrs); } public CustomViewPager(Context context) { super(context); } @Override public boolean onTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case

问题 I want to allow the user swipe in a ViewPager only from right to left. So once he passed a page he can't come back to it. How can this be done? I tried this solution: public class CustomViewPager extends ViewPager { float lastX = 0; boolean lockScroll = false; public CustomViewPager(Context context, AttributeSet attrs) { super(context, attrs); } public CustomViewPager(Context context) { super(context); } @Override public boolean onTouchEvent(MotionEvent ev) { switch (ev.getAction()) { case

问题 Into my project I am using viewpager with three tabs named History , Main , Map . Main activity contain Timer,stopwatch,etc. Map display the google map. and into History right now I am using only simple Textview. Viewpager flow direction : History - Main - Map I set the Main as the current item(Bydefault Main tag display).Now when I am swipe from Main > Map and Map > Main its working perfect. but when swipe from Main > History there is no error but back return from History to Main ( History >

问题 I've met the problem that trouble me for days. There is a ViewPager in the main activity which holds 3 Fragment s as tab fragments. In the first fragment there is a ListView which holds some views, and which is the most important, another ViewPager . I want to hold some photos in the sub ViewPager , and use some more fragments here. Now there is the trouble: When the first Fragment is stopped (The third fragment in the parent ViewPager is seen on screen) and resumed (the user switch to the