adapter

android - Updating ListView from AsyncTask called from custom adapter class

由 此生再无相见时 提交于 2021-02-07 10:30:25
问题 I am trying to update a ListView from an AsyncTask. I have this situation: Activity Class creates the list adapter from a custom Adapter class. Adapter class sets onClickListener on element from list item, and calls an AsyncTask located in a different Utilities class. How can I call notifyDataSetChanged from onPostExecute() method in the Utilities AsyncTask? 回答1: Include a Delegate as a callback to activate the refresh from within the original class. For example, add this interface: public

What is the difference between Two-way Adapter and Pluggable Adapter Pattern in C#?

由 ╄→гoц情女王★ 提交于 2021-02-07 03:47:50
问题 Both Two-way Adapter and Pluggable Adapter can access both the classes and also change the behavior of the method which is required to be changed. The following is my code: Two-Way Adapter public interface IAircraft { bool Airborne { get; } void TakeOff(); int Height { get; } } // Target public sealed class Aircraft : IAircraft { int height; bool airborne; public Aircraft() { height = 0; airborne = false; } public void TakeOff() { Console.WriteLine("Aircraft engine takeoff"); airborne = true;

What is the difference between Two-way Adapter and Pluggable Adapter Pattern in C#?

由 点点圈 提交于 2021-02-07 03:44:41
问题 Both Two-way Adapter and Pluggable Adapter can access both the classes and also change the behavior of the method which is required to be changed. The following is my code: Two-Way Adapter public interface IAircraft { bool Airborne { get; } void TakeOff(); int Height { get; } } // Target public sealed class Aircraft : IAircraft { int height; bool airborne; public Aircraft() { height = 0; airborne = false; } public void TakeOff() { Console.WriteLine("Aircraft engine takeoff"); airborne = true;

ConstraintLayout cannot be cast to android.widget.TextView

由 风流意气都作罢 提交于 2021-02-05 09:35:37
问题 I keep getting a runtime error when I try to launch an activity. Line where the error happen: private OnItemClickListener mDeviceClickListener = new OnItemClickListener() { public void onItemClick(AdapterView<?> av, View v, int arg2, long arg3) { textView1.setText("Csatlakozás..."); String info = ((TextView) v).getText().toString(); // <-- ERROR HERE String address = info.substring(info.length() - 17); Intent i = new Intent(DeviceListActivity.this, MainActivity.class); i.putExtra(EXTRA_DEVICE

Eclipse Glassfish, not publishing changes to required projects

由 ↘锁芯ラ 提交于 2021-02-05 07:47:47
问题 My setup is as follows: I am using Eclipse Version: Juno Service Release 2 Build id: 20130225-0426 and Glassfish 3.1.2. The glassfish adapter is version 5.0.1.201201241920 I have war maven project that is set up to require a jar maven project. I've configured the war Deployment assembly to include the jar project. I've turned off automatic publishing to glassfish (but turning it on does not solve the problem) The problem: If I make a change to a class in the jar project, the server will

Android Studio not picking up the minSdkVersion

由 你。 提交于 2021-01-29 20:23:48
问题 I already have 'android:minSdkVersion="11"' but setRemoteAdapter(..) is still complaining - am i missing something here? I have already tried "Make Project" and "Rebuild Project" 回答1: I had to change the build.gradle file in the project, the manifest is no the right place / enough. 来源： https://stackoverflow.com/questions/19629902/android-studio-not-picking-up-the-minsdkversion

post save user is inactive based on assigned user_group - Django Allauth

由 依然范特西╮ 提交于 2021-01-29 06:10:56
问题 I have two different user groups group_a and group_b. On register a user can choose the group he/she belongs to. I am using Django Allauth to handle all the user stuff so I've made a custom account adapter to handle the extra logic: custom_adapter.py class UserAccountAdapter(DefaultAccountAdapter): def save_user(self, request, user, form, commit=True): user = super(UserAccountAdapter, self).save_user(request, user, form, commit=False) user.voornaam = form.cleaned_data.get('first_name') user

notifydatasetchanged not working from async task

由 帅比萌擦擦* 提交于 2021-01-29 05:16:17
问题 hi i think my issue is related to this notifyDataSetChanged not working on RecyclerView im trying to refresh my layout from an async task but when im calling notify datasetchanged nothing happens, but if i create a new instance of the adapter and call notifydatasetchanged then it does work ive tried a few things to no avail and wonder what im doing wrong, i reference it like this public ListAdapter cardAdapter; then in onCreate i initialise everything to do with my recycler view, (the only

clicklistener not working in recyclerview

由 笑着哭i 提交于 2020-12-15 06:07:48
问题 Im following this link answer--> https://stackoverflow.com/a/32323801/12553303 ...on click of item im getting an error of invalid product id...but how do i get id from adapter to activity??????? i have used interface for click listener... need help in here --> RetrofitClient.instance.deletecart(token, dataList?.get(position)?.product_id.toString()) on debuuging this line following is my code :-- class CartAdapter(private val context: Context, private val dataList: MutableList<DataCart?>?) :

设计模式—适配器模式

由 社会主义新天地 提交于 2020-12-03 15:29:03
转载请注明出处： http://blog.csdn.net/singwhatiwanna/article/details/17659905 前言 适配器模式在设计模式体系中属于结构型模式，可以分为三类：类的适配器模式、对象的适配器模式和接口的适配器模式，由于类和接口的适配器模式需要适配器继承原有的类，而纯面向对象语言Java、C#都是不支持多继承的，这在一定程度上制约了类和接口的适配器模式的使用场景，故使用的时候要注意。 使用目的 ：将一个类的接口转换成客户希望的另外一个接口。适配器模式使得原本由于接口不兼容而不能一起工作的那些类可以一起工作。 类适配器模式 说明： 当新接口出现的时候，由于和老的接口不兼容，这个时候，我们采用一个适配器类实现新的接口并且继承老的业务类，这样就能同时处理新老业务。 示例代码： /** * 原始类 */ class Source { public void oldFunction() { System.out.println("oldFunction:Source"); } } interface Target { void oldFunction(); // 新接口 void newFunction(); } // 适配器，用来做接口转换 class Adapter extends Source implements Target { public
订阅 adapter