arrayadapter

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am asking myself if it is possible, to combine a Spinner and a AutoCompleteTextView . Basically I want an AutoCompleteTextView , that shows all entries from Array when I click it. Does anybody know how to do that? 回答1: Try this code: ArrayAdapter myAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_dropdown_item_1line, YOUR_ARRAY); myAutoCompleteTextView.setAdapter(myAdapter ); 回答2: Just found out that this does exactly what I was asking for: final AutoCompleteTextView textView; final ArrayAdapter<String> arrayAdapter = new

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am new to Android Development. I purely like to work with JSON Objects and Arrays for my simple application considering the lightness of the JSON Carrier compared to XMLs. I had challenges with ArrayAdapter to populate the ListView. This is how I overcome and need your suggestions on it. Extend the Adaptor class. Then pass the JSONArray to the constructor. Here the constructor calls super with dummy String array setting the length of the JSONArray. Store the constructor arguments in class for further use. public myAdaptor(Context context,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I want to know the difference between using BaseAdapter and ArrayAdapter . I have been achieving what I want through ArrayAdapters . Does it affect the performance of the ListView on the adapter interface in which it is implemented ? And, the last question is, can i achieve anything doing with ListView using any of these Adapters , or, there are certain cases where specific adapter only can be used? 回答1: Here is the difference: BaseAdapter is a very generic adapter that allows you to do pretty much whatever you want. However, you have to do

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hi Guys I am getting a Cannot resolve constructor ArrayAdapter in my OnCreateView method with the listAdapter I am trying to list text data in my tabs and here is my main activity. Any help will be appreciated I am still a noobie in Java . public class MainActivity extends ActionBarActivity { private Toolbar toolbar; private ViewPager mPager; private SlidingTabLayout mTabs; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); toolbar = (Toolbar)

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: Hi Guys I am getting a Cannot resolve constructor ArrayAdapter in my OnCreateView method with the listAdapter I am trying to list text data in my tabs and here is my main activity. Any help will be appreciated I am still a noobie in Java . public class MainActivity extends ActionBarActivity { private Toolbar toolbar; private ViewPager mPager; private SlidingTabLayout mTabs; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); toolbar = (Toolbar)

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm relatively new to Android development and development overall. I'm having trouble grasping the syntax/process for ViewPager. I have several ListViews that I want to implement into a ViewPager. I've got the compatibility pack loaded and everything. But I haven't seen any complete examples of how to do this. I learn best by looking at examples. If someone can post an examples of any projects you've implemented this sort of thing in, please let me know. The issue is that I get a Null Pointer Exception on this line when trying to launch my

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I'm getting the following error: Error:(34, 53) error: no suitable constructor found for ArrayAdapter(AllStores,ListView,Response<List<Store>>) constructor ArrayAdapter.ArrayAdapter(Context,int,int,List<String>) is not applicable (actual and formal argument lists differ in length) constructor ArrayAdapter.ArrayAdapter(Context,int,List<String>) is not applicable (actual argument ListView cannot be converted to int by method invocation conversion) constructor ArrayAdapter.ArrayAdapter(Context,int,int,String[]) is not applicable (actual and

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: In my activity I implement a list which contains the names of some files. Every list's item refers to a layout in which I'd like to show the name of the images and a thumbnail of the image referenced. Ican show the the name using an ArrayAdapter but i don't know hot to insert the image thumbnail. All the image referenced stay in sd_card and i have the path of they. Here is the single row layout: and the layout of the activity and the activity code inherent adapter. ArrayAdapter> arrayAdapter = new ArrayAdapter (this,R.layout.row,R.id

ArrayAdapter是一个很简单的适配器，是BaseAdapter的子类。 ArrayAdapter绑定的数据是集合或数组，比较单一。视图是列表形式，ListView 或 Spinner. ArrayAdapter先看下它的构造方法有哪些,如下： ArrayAdapter(Context context, int resource) context:当前的上下文，不能为null resource:布局的资源ID，实例化视图时使用的TextView ArrayAdapter(Context context, int resource, int textViewResourceId) context:同上，不能为null resource:布局的资源ID，实例化视图时使用的layout textViewResourceId:要填充的布局资源中的TextView的id ArrayAdapter(Context context, int resource, T[] objects) ArrayAdapter(Context context, int resource, List<T> objects) context:同上，不能为null resource:布局的资源ID， 实例化视图时使用的 TextView objects:数据集合，不能为null ArrayAdapter

前言介绍： 关于 ListView 我们大家都应该是非常的熟悉了，在 Android 开发中是经常用到的，今天就再来回顾一下， ListView 的使用方法，和一些需要优化注意的地方，还有日常开发过程中的一些小技巧和经验。 ListView 简介 ListView 是 Android 系统为我们提供的一种列表显示的一种控件，使用它可以用来显示我们常见的列表形式。继承自抽象类 AdapterView 。 类的关系图： 表现形式 这就是一种最简单的 ListView 的表现形式，黑色框就是 ListView 控件，其中由一个个的 item 组成（红色框内容），然后可以通过向下滑动来查看很多的条目。 工作原理 ListView 仅是作为容器（列表），用于装载显示数据（就是上面的一个个的红色框的内容，也称为 item）。item 中的具体数据是由适配器（adapter）来提供的。 适配器（adapter）：作为 View （不仅仅指的 ListView）和数据之间的桥梁或者中介，将数据映射到要展示的 View 中。这就是最简单适配器模式，也是适配器的主要作用！ 当需要显示数据的时候，ListView 会从适配器（Adapter）中取出数据，然后来加载数据。 ListView 负责以列表的形式向我们展示 Adapter 提供的内容 缓存原理 前面讲了 ListView 负责把 Adapter