custom-adapter | 易学教程

How to use CustomAdapter with ListView from XML Async Task

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I achieved populate a ListView using StringBuilder from a Internet XML Source. With this code the listView is populated with only one String but I want populate the listview by elements: getIdLine and getTimeLeft (With CustomAdapter ) for customize the layout of the listView items in separated Strings. How to achieve this? EDITED CODE FragmentActivity.class private ListView listViewEMT; private ArrayList<HashMap<String, String>> yourList; ... AsyncTask protected void onPostExecute(String string) { super.onPostExecute(string); CustomAdapter adapter = new CustomAdapter(getActivity(), yourList);

App crashes when i click on checkbox in contact listview

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问题 I am new android Developer and i want to select multiple contacts in list view using check box but yet when i click any check box app is crashed I am Using a custom Adapter plz any one can help me my contactList ACtivity is following public class CustomAdapter extends ArrayAdapter<PhoneList> { int inflatr; Context ctxt; ArrayList<PhoneList> data=new ArrayList<PhoneList>(); public CustomAdapter(Context context, int resource, ArrayList<PhoneList> arr) { super(context, resource, arr); this

A custom adapter that displays different images from the web in a list

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问题 I have made a custom ArrayAdapter but it is not displaying the different images in each row of the list. It displays only the text but not the images from the server. Here is the code: THE CUSTOM ADAPTER: package com.findadoc; import android.app.Activity; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.TextView; import android

How to set Filter to ListView with CursorAdapter?

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问题 I have a ListView . which of it's items are from custom CursorAdapter . I have created separate layout for ListView items which is a CardView . I have six TextViews on each card they are Database values. Now i have to put a EditText to filter the ListView items according to the text entered in EditText. My Code is layout with ListView is <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout

How to use CustomAdapter with ListView from XML Async Task

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问题 I achieved populate a ListView using StringBuilder from a Internet XML Source. With this code the listView is populated with only one String but I want populate the listview by elements: getIdLine and getTimeLeft (With CustomAdapter ) for customize the layout of the listView items in separated Strings. How to achieve this? EDITED CODE FragmentActivity.class private ListView listViewEMT; private ArrayList<HashMap<String, String>> yourList; ... AsyncTask protected void onPostExecute(String

Use CustomAdapter to change how ListView is displayed

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问题 My XML that I would like to use for custom adapter: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity

Issue in setting Textview's text in Custom Adapter for Android

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问题 I am not able to set textview's setText property inside getView() method of Custom Adapter. I already tried below solutions but it does not work for me : Solution One Solution Two Solution Three Listview.xml file : <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/imgLayout" android:layout_width="match_parent" android:layout_height="match_parent"> <ListView android:id="@+id/list" android:layout_width="fill_parent

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

After maintaining collapse/expand state for N-level or Multilevel expandablelistview some subgroups are not displayed

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问题 I worked a lot to create **N-level expandableListView. I am able to make it to any level but my requirement is to maintain the state of opened groups even after scroll. I tried with multiple ways but still unsuccessful. This Expandable listview is meeting with all company requirement other than this issue. *This is one way, which i tried. I am able to save the states within objects but few subgroups are not getting displayed. * I tried with onMeasure(width,height) method to maintain the

How to set Filter to ListView with CursorAdapter?

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I have a ListView . which of it's items are from custom CursorAdapter . I have created separate layout for ListView items which is a CardView . I have six TextViews on each card they are Database values. Now i have to put a EditText to filter the ListView items according to the text entered in EditText. My Code is layout with ListView is <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#1d4563"> <ListView android:layout_width="wrap_content"