searchview

问题 Hi everyone I'm having a problem between two devices. In practice using the InputType and the KeyListener I'm manipulating an EditText to make it receive the commas and numbers from the numeric pad (for more background check my previous question). Using the following code I'm able to do something like that: editText.setInputType(InputType.TYPE_CLASS_NUMBER + InputType.TYPE_NUMBER_FLAG_DECIMAL); editText.setKeyListener(DigitsKeyListener.getInstance("0123456789,")); Unfortunately this doesn't

问题 I am developing an android app which shows a list of countries affected by Coronavirus , the total number of confirmed cases and total Deaths. I am using a JSON API to get the data and displaying it using a RecyclerView . The app works fine , and i get a list of all the countries with their respective case counts. I want to add a search option so that the users can filter the list and find a specific country. How do i do that? I am new to programming , if someone could help with this that

问题 I have a recyclerview and I want to search in it with help of searchview. I want my searched characters to be colored and be specific. I am programming with Kotlin. 回答1: After a hard effort I found the answer myself. I use a function like this: fun colorsearch(a:String,charText: String):SpannableStringBuilder{ var l = 0 var b:ArrayList<Int> b = ArrayList() var w = 0 var i = 0 if (charText!=""){ label@ while (i < a.length) { var j=0 while (j<charText.length){ Log.v("abc", j.toString()) if (i =

问题 I've noticed that there is no working solution that shows how to use filter on a listView items using the actionbar, that works on older Android versions (like 2.3.x). The only example I've found is in the file "LoaderCursorSupport.java" of the fragments example. However, it only works when the searchView can be created, meaning starting from Android 3.x, as shown in the code: View searchView=SearchViewCompat.newSearchView(getActivity()); if(searchView!=null) ... The above bug (or missing

问题 This code works fine if the item we entered in search view matches but if we enter some query which does not match ...application is crashing in android. Here Main_ATMItemList is the list in which whole list of results are returned. Please help me what I need to add so that the code works even the query does not match. I have created this method in adapter class public void setFilter(String queryText) { visibleObjects = new ArrayList<>(); for (RouteByATMList.Route_ATM item : Main_ATMItemList)

问题 I am trying to add a SearchView to Material Design Toolbar / ActionBar such that the SearchView is expanded by default and takes up the entire space of the Toolbar width-wise. I have the following Toolbar so far. The problem with it is: I want the Search icon to have the same distance from the left edge of the screen as that of the X icon from the right edge of the screen. How can I do that? The X icon appears only when I start typing a search query, and then it disappears if I cancel the

问题 I am trying to add a SearchView to Material Design Toolbar / ActionBar such that the SearchView is expanded by default and takes up the entire space of the Toolbar width-wise. I have the following Toolbar so far. The problem with it is: I want the Search icon to have the same distance from the left edge of the screen as that of the X icon from the right edge of the screen. How can I do that? The X icon appears only when I start typing a search query, and then it disappears if I cancel the

问题 In my application I'd like to create something like this: I want all the AppBar to appear / disappear but using CollapingToolbarLayout doesn't work for me. I tried with something like: <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent" android:layout_height="match_parent" android:fitsSystemWindows="true"> <android.support.design.widget.AppBarLayout

问题 With android Paging library it is really easy to load data from Database in chunks and ViewModel provides automatic UI update and data survival. All these frameworks modules help us create a great app in android platform. A typical android app has to show a list of items and allows user to search that list. And this what I want to achieve with my app. So I have done an implementation by reading many documentations, tutorials and even stackoverflow answers. But I am not so sure whether I am

问题 I am making database app using room, mvvm, livedata . I have Prepopulated it with some data. Now i have two options either i am going to show that prepoulated data when app turns on via recyclerview or show it when i search it using SearchView inside recyclerView. The Problem is when i search for particular item, itw shows that item when i complete my word and when i try to go back either my resView back empty or it always stays on that item. i wanna try sometime realtime like: when i enter