kotlin

问题 Everything looks good. Need help in finding a mistake in code. By the logs that is the snapshot from firebase DataSnapshot { key = SecondGame, value = {background=https://firebasestorage.googleapis.com/v0/b/fantasygameapp11.appspot.com/o/background_black.jpg?alt=media&token=b3ec1477-6b52-48b4-9296-f57f63f26837, description=SecondGameDescription, tag=https://firebasestorage.googleapis.com/v0/b/fantasygameapp11.appspot.com/o/hot_icon.png?alt=media&token=65516b45-1aca-4cac-9a39-3eddefffe499,

问题 Now I'm studying to show AlertDialog when RecyclerView item clicked. However, I don't know how to set the adapter for click listener. Could you give me a tip? Firstly, I tried to put the AlertDialog in this Main Activity. Is this right position? MainActivity class MainActivity : AppCompatActivity() { private val foodList = listOf( FoodModel("Noodle", 2), FoodModel("Cake", 3), FoodModel("Pizza", 4), FoodModel("Stake", 5), FoodModel("Chicken", 4) ) override fun onCreate(savedInstanceState:

问题 We created a multi-platform framework file by building my project with the following packForXCode . It creates a framework file of the size 5.3 MB , which is too large. When I add it as part of my iOS extension module, it fails during initiation. The file works fine when inited in the main app. My pack for Xcode: task packForXcode(type: Sync) { final File frameworkDir = new File(buildDir, "xcode-frameworks") final String mode = project.findProperty("XCODE_CONFIGURATION")?.toUpperCase() ?:

问题 I have a project on kotlin multiplatform and want to use kotlin react for that. Added dependencies to build.gradle: implementation("org.jetbrains:kotlin-react:16.13.0-pre.94-kotlin-1.3.70") implementation("org.jetbrains:kotlin-react-dom:16.13.0-pre.94-kotlin-1.3.70") implementation(npm("react", "16.13.1")) implementation(npm("react-dom", "16.13.1")) however i got a Uncaught ReferenceError: module is not defined in kotlin-react-dom.js and kotlin-react.js i found that it because of core-js,

问题 I'm making a Google Maps app. I've put on the API key, and the default code runs without any problems, but I don't know how to localize my position... I looked around and found this document: Kotlin API But still when I try to import: import com.google.android.location.Location the first "location" will appear in red... It looks like this API document is deprecated, so I don't know what to import or use to build my app... How can I fix this? 回答1: Try this code for getting the current location

问题 I'm making a Google Maps app. I've put on the API key, and the default code runs without any problems, but I don't know how to localize my position... I looked around and found this document: Kotlin API But still when I try to import: import com.google.android.location.Location the first "location" will appear in red... It looks like this API document is deprecated, so I don't know what to import or use to build my app... How can I fix this? 回答1: Try this code for getting the current location

问题 I'm making a Google Maps app. I've put on the API key, and the default code runs without any problems, but I don't know how to localize my position... I looked around and found this document: Kotlin API But still when I try to import: import com.google.android.location.Location the first "location" will appear in red... It looks like this API document is deprecated, so I don't know what to import or use to build my app... How can I fix this? 回答1: Try this code for getting the current location

问题 In Jetpack Compose, how can I display a large list of data while laying out only the visible items, instead of composing and laying out every item on the initial layout pass? This would be similar to RecyclerView and ListView in the View toolkit. One could use a for loop to place all of the components inside of a Column in a VerticalScroller , but this would result in dropped frames and poor performance on larger numbers of items. Note: this is intended as a canonical self-answered question

问题 In Jetpack Compose, how can I display a large list of data while laying out only the visible items, instead of composing and laying out every item on the initial layout pass? This would be similar to RecyclerView and ListView in the View toolkit. One could use a for loop to place all of the components inside of a Column in a VerticalScroller , but this would result in dropped frames and poor performance on larger numbers of items. Note: this is intended as a canonical self-answered question

问题 Actual Code: My Main Activity: class MainActivity : AppCompatActivity() { private lateinit var binding: ActivityMainBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMainBinding.inflate(layoutInflater) val rollButton = binding.rollButton rollButton.setOnClickListener { rollDice() } setContentView(binding.root) } private fun rollDice() { val randomDiceRoll = Random.nextInt(6) + 1 Toast.makeText(this, randomDiceRoll.toString(),