adapter

摘自： https://www.cnblogs.com/kingsleylam/p/11784777.html ThreadPoolExecutor源码中的适配器模式 什么是适配器模式 网上已有很多的教程，不细讲了。可以参考： 五分钟了解设计模式(3)---适配器模式 在适配器模式中，一定要识别清楚，Target Adaptee Adapter分别是哪些类或接口，这样才能知道是谁转成谁。 Target: 最终给上下文调用的类 Adaptee: 被适配的类，即需要转成Target Adapter: 将Target和Adaptee连接起来，起转换作用 ThreadPoolExecutor中submit方法用到的适配器模式 ThreadPoolExecutor类提供了submit方法，共有3个重载。这三个方法最终调用到的是execute(Runnable r) 方法，返回一个Future类型的对象（具体为FutureTask类型），相比直接调用execute(Runnable r)方法，调用方可以获得任务执行的结果。三个submit方法， 都使用了适配器模式，才能将顺利调用execute(Runnable r)方法。 先看看public Future submit(Callable task) 在这个方法中，Target是Runnable

I'm setting a custom SimpleCursorAdapter to a ListView. For some reason FriendAdapter's getView() is called twice for every item in the DB. After some investigation (I have no wrap_content in my contact_list.xml), I can still not figure out why. What could be the reasons? Anybody can help? Thanks ContactSelection.java public class ContactSelection extends ListActivity { private WhipemDBAdapter mDbHelper; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mDbHelper = new WhipemDBAdapter(this); mDbHelper.open(); setContentView(R.layout.contact_list);

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 have implemented the search functionality in my android application along with the sorting of recycler view items in ascending and descending order.I have used action bar icons to perform these operations.My ascending and descending order icons works properly when I don't click search bar icon at all,but as soon as I click on my search bar icon to search something and then I try to sort my recycler view list by clicking on the sorting icons then it doesnt performs sorting.What is the issue? Here is my code for my activity and adapter-->

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 using the firebase messaging service for messaging and notifications. I can't seem to be able to pass an incoming message from the service to the adapter so that when the message is received it can be inserted into the RecycleView List. I tried using BroacastIntent as follows : public class messaging extends FirebaseMessagingService { @Override public void onMessageReceived(RemoteMessage m) { store(m.getData()); broadcastIntent(); } public void broadcastIntent() { Intent intent = new Intent(); intent.setAction("com.myApp.CUSTOM_EVENT");

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 coding a custom adapter for a ListView that has a custom list to it. obviously, I have to write the getView function. so here is my code: /*1*/ public View getView(int position, View convertView, ViewGroup parent) { /*2*/ View vi = convertView; /*3*/ if (convertView == null) /*4*/ vi = inflater.inflate(R.layout.result_list_item, null); /*5*/ /*6*/ TextView title = (TextView) vi.findViewById(R.id.tvTitle); /*7*/ TextView subtitle = (TextView) vi.findViewById(R.id.tvSubTitle); /*8*/ ImageView image = (ImageView) vi.findViewById(R.id

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): 由 翻译 强力驱动 问题: I want to set up an onClickListener within my RecyclerView adapter so I can easily refer to the other views to retrieve their tags. Is it possible to set up an onClickListener in a RecyclerView adapter? How would I do it? Would it affect performance? Here is my RecyclerView adapter: public class PostRecyclerAdapter extends RecyclerView . Adapter < PostRecyclerAdapter . ViewHolder > { private Context context ; private List < Post > mDataset ; public static class ViewHolder extends RecyclerView . ViewHolder implements View .

Is there a way to attach dynamic adapter to EditText? What I want is - when a key is pressed on EditText, my code to do a search in (some) custom store and provide suggestions (instead of static Xml-list or array). This store is not a database; I think CursorAdapter is for database results only. Example code snippets are welcomed. ankitjaininfo I found the solution and posted the answer to this question . Write a custom SimpleCursorAdapter . Override runQueryOnBackgroundThread() method and return a new MatrixCursor based on the input contraint. Associate this adapter to the autocomplete

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: When trying to connect with a remote Oracle database via JDBC I receive the following exception: java.sql.SQLRecoverableException: IO-fout: The Network Adapter could not establish the connection at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:419) at oracle.jdbc.driver.PhysicalConnection. (PhysicalConnection.java:536) at oracle.jdbc.driver.T4CConnection. (T4CConnection.java:228) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtension.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:521) at