In the list of arguments of a method callĪfter the new keyword in an object declaration In the right part of assignment statements Type-matching completion is useful in situations when it is possible to determine the appropriate type:
Smart type-matching code completion filters the suggestions list and shows only the types applicable to the current context. When invoked for the third time, basic code completion expands the suggestion list to all classes throughout the project, regardless of the dependencies.Ĭompletion in the Stream API chains is aware of type casts, so the list will not only contain items based on the existing call filter(String.class::isInstance), but also automatically typecasted suggestions. This shows inaccessible classes and members as well as static fields and methods. If necessary, press Ctrl+Space for the second time (or press Ctrl+Alt+Space). If automatic completion is disabled, press Ctrl+Space or choose Code | Code Completion | Basic from the main menu. By default, IntelliJ IDEA displays the code completion popup automatically as you type. If the necessary class is not yet imported, it will be imported automatically. When invoked for the third time in a row, IntelliJ IDEA will look for suggestions for classes and interface names in the entire project, regardless of dependencies. Invoking basic code completion for the second time shows inaccessible classes and members (these can be made public by applying an intention action). If basic code completion is applied to a part of a field, parameter, or variable declaration, IntelliJ IDEA suggests a list of possible names depending on the item type. However, IntelliJ IDEA does not recognize the structure of such files, and suggests options regardless of whether they are appropriate in the current context.īasic completion is also available for a non-English keyboard layout. When you invoke code completion, IntelliJ IDEA analyses the context and suggests the choices that are reachable from the current caret position (suggestions also include Live templates).Ĭode completion is available for custom file types. Basic completionīasic code completion helps you complete the names of classes, methods, fields, and keywords within the visibility scope. Import section covers various techniques of context-aware code completion that allow you to speed up your coding process. Here is the content of src/MainActivity.java
Run the application and choose a running android device and install the application on it and verify the results. Modify layout XML file res/layout/activity_main.xml add any GUI component if required. Modify src/MainActivity.java file to add AutoCompleteTextView code You will use Android Studio to create an Android application under a package package. To experiment with this example, you need to run this on an actual device or in an emulator. It crates a basic application that allows you to type in and it displays suggestions on your device. The below example demonstrates the use of AutoCompleteTextView class. This method displays the drop down on screen. This method sets text except that it can disable filtering SetText(CharSequence text, boolean filter) This method indicates whether the popup menu is showing This method returns the position of the dropdown view selection, if there is one This method returns returns the id for the view that the auto-complete drop down list is anchored to. This method returns optional hint text displayed at the bottom of the the matching list This method returns a filterable list adapter used for auto completion Apart from these methods, the other methods of Auto Complete are listed below. The setAdapter method is used to set the adapter of the autoCompleteTextView. The array adapter class is responsible for displaying the data as list in the suggestion box of the text field. (this,android.R.layout.simple_list_item_1,countries) String countries = getResources().getStringArray(R.array.list_of_countries) You can specify the list items as a string array in java or in strings.xml. The the next thing you need to do is to specify the list of suggestions items to be displayed. Its syntax is given below.Īctv = (AutoCompleteTextView) findViewById(R.id.autoCompleteTextView1) Its syntax is given below.Īfter that, you have to get a reference of this textview in java. In order to use AutoCompleteTextView you have to first create an AutoCompletTextView Field in the xml. The list of suggestions is displayed in a drop down menu from which the user can choose an item to replace the content of the edit box with. It provides suggestions automatically when the user is typing. If you want to get suggestions, when you type in an editable text field, you can do this via AutoCompleteTextView.