android listview

Reprinted: http://blog.csdn.net/f8376904110/article/details/6460934 When using listview. Sometimes, when you customize the adapter, do you find that when printing logs in getview, you have repeatedly called it many times? Sometimes four times. Some are serious or even 10 times, when we move in listview. Each column is called many times, which greatly affects the efficiency! In fact, this is related to

, less than 5 to load the remaining). Look at the effect chart: A brief analysis of sequence times of Onscrolllistener eventsin the Android onscrolllistener whole event I'm mainly analyzing his execution sequence:Implement a listener interface for scrolling events new Abslistview.onscrolllistener () {@Override public void onscrollstatechanged (Abs ListView abslistview, int scrollstate) {switch

Differences and connections between ListView and ListActivity in Android Activity, androidlistactivity Differences between the use of ListView by Activity and ListActivity in Android: 1. Use of Activity: (1). concept: Each activity corresponds to a display interface, and each activity exclusively occupies the entire

Android listview and ListAdapter are used together. androidlistadapter The data display control that comes with Android in ListView. To use ListView to fill data, you must use an adapter to fill the data. Here we will introduce the ListAdapter adapter, as shown below: Java

Reprint Please specify source:http://blog.csdn.net/allen315410/article/details/40379159The latest version of Android 5.0 has been released recently, and for those of me who are not cold on new things, nature will also be concerned, in addition to the new UI design and user experience brought by the new android5.0, the most interesting for Android programmers is the 5.0 version of the SDK and a whole bunch o

ListView is a common Android control, when clicked on the ListView item, the orange background color is displayed by default, and the corresponding color is displayed when tumbling. This tends to be very uncoordinated with the actual software UI design style. By setting the ListView background color, the implementation

the ListView* Fourth parameter: is the array representation of the key of map* Fifth parameter: Make us list*/MapMmap1.put ("title", "I am the first feature");Mmap1.put ("icon", R.drawable.ic_launcher);MapMmap2.put ("title", "I am the second function");Mmap2.put ("icon", R.drawable.ic_launcher);MapMmap3.put ("title", "I am a third function");Mmap3.put ("icon", R.drawable.ic_launcher);Data.add (MMAP1);Data.add (MMAP2);Data.add (MMAP3);Mlistview.setada

Sample Code: This is a code for reading contacts: Copy codeThe Code is as follows: package com. ui. domain; Import java. util. ArrayList; Import java. util. List; Import android. app. Activity; Import android. database. Cursor; Import android. database. DataSetObserver; Import android. graphics. Color; Import

Set static data for ListView in Android Sometimes we need to set fixed data for a listview. below is how to set static data Layout file listview Homepage Then a layout file is the item of each listview, and listview_item.xml contains images and text

Android achieves the non-scroll Effect of ListView. androidlistview The expected result is that the ListView cannot be rolled, but the biggest problem is that there must be a click event with the ListView Item. If you do not need to click the event, it is easy to set the ListView