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Get activity in kotlin

Web前言 随着金三银四的到来,这段时间陆续开启了面试的热潮,目前Kotlin作为Android日常开发中的主要的语言基础,无疑成为Android面试中常考的一部分,为了检验自身巩固自己 … WebJan 1, 2024 · Quoting the Kotlin documentation: Methods that follow the Java conventions for getters and setters (no-argument methods with names starting with get and single …

How to pass and get value from fragment and activity

WebAug 13, 2024 · Initially, my guess was that intents are used to go to another activity, and that it needs another intent to go back to the previous activity. Another guess was that you use EXTRA data on the intent to get data to ToolsActivity, so somehow the EXTRA data is also to be used to get data back to the MainActivity. Both guesses seem to be naive. WebAug 5, 2024 · Simply you can start an Activity in KOTLIN by using this simple method, val intent = Intent (this, SecondActivity::class.java) intent.putExtra ("key", value) startActivity (intent) Share Improve this … i cant fall in love without you chords https://deardiarystationery.com

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WebAug 5, 2024 · Use below code to start your Activity. // start your activity by passing the intent startActivity (Intent (this, Page2::class.java).apply { // … WebJan 9, 2024 · When the activity is destroyed and recreated, such as during a screen orientation change, the context reference results in a memory leak, because it references a destroyed context. I believe you can demonstrate this problem by changing your screen orientation until your app crashes due to the leak. – Daniel C Jacobs Sep 24, 2024 at 16:07 Web7. One more way is:: Write a method in your adapter lets say public void callBack () {}. Now while creating an object for adapter in activity override this method. Override method will be called when you call the method in adapter. Myadapter adapter = new Myadapter () { @Override public void callBack () { // dosomething } }; Share. i cant fight this feeling anymore chords

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Get activity in kotlin

Set data from Viewmodel to activity android kotlin

WebDec 26, 2024 · So in Activity you can do next: mViewModel.mName.observe(this) { it?.let { tv_emp_name.setText(it.empName) } } Also following Kotlin style guidelines it's better to …

Get activity in kotlin

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WebSep 13, 2016 · Everything can be done in a single line: startActivity ("id" to 2, "name" to "Kotlin") This will create a set of extras for the intent with the values specified by the list of pairs the function is receiving as a parameter. Share Improve this answer Follow edited May 22, 2024 at 22:56 DarkCygnus 7,230 4 38 57 WebJun 17, 2024 · Kotlin Java class MainActivity : AppCompatActivity() { // Using the viewModels () Kotlin property delegate from the activity-ktx // artifact to retrieve the ViewModel in the activity scope private val viewModel: ItemViewModel by viewModels() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState)

WebMar 29, 2024 · Drive an activity's state. One key aspect of testing your app's activities involves placing your app's activities in particular states. To define this "given" part of your tests, use instances of ActivityScenario , part of the AndroidX Test library. Using this class, you can place your activity in states that simulate device-level events. WebNov 4, 2024 · So make sure you have the right type. is ContextWrapper -> baseContext.getActivity () is a recursive call. You can get the activity from your …

WebMay 21, 2024 · In kotlin don't use getters and setters as like in java.The correct format of the kotlin is given below. val textView: TextView = findViewById (R.id.android_text) as … WebDec 20, 2010 · Another Kotlin Extension solution. If your activity's view is declared in xml (ex activity_root.xml), open the xml and assign an id to the root view: …

WebFeb 20, 2024 · To pass and get value from fragment and activity, val mFragment = Fragment() val mArgs = Bundle() mArgs.putInt("Key", value) …

WebJun 11, 2024 · 1 Answer. Sorted by: 0. To get the Context in the Fragment from AndroidX support library you can use method requireContext () If you need an Activity instance to … i cant face christmasWebAug 13, 2024 · The second activity is started from clicking a MenuItem on the Toolbar widget, defined in the res/menu/menu_main.xml layout. The second activity is shown … money advice service benefitsWebJul 28, 2024 · getActivity () / context in a ViewHolder in Kotlin Android. I'm building a ViewHolder and Adapter for a Fragment and when I try to make an OnClick for the … i cant face work tomorrow