You can run it on minSdk 21 as it is documented on [the framework&#39;s github page][1].
&gt;React Native apps may target iOS 11.0 and Android 5.0 (API 21) or newer.


  [1]: https://github.com/facebook/react-native#-requirements

 - for February 2020:
 - React Native apps may target iOS 10.0 and Android 4.1 (API 16) or
   newer. 
 - Expo supports Android 5+ and iOS 10+.

The supported iOS version changes all the time, but you can find it at any time by checking the Podfile on the official repository:

https://github.com/facebook/react-native/blob/main/template/ios/Podfile

For example, as of December 2021, the supported iOS version is 11.0.


What is the most efficient way to list all dependencies required to deploy a working project elsewhere (on a different OS, say)? 

Python 2.7, Windows dev environment, not using a virtualenv per project, but a global dev environment, installing libraries as needed, happily hopping from one project to the next. 

I&#39;ve kept track of most (not sure _all_) libraries I had to install for a given project. I have _not_ kept track of any sub-dependencies that came auto-installed with them. Doing `pip freeze` lists both, plus all the other libraries that were ever installed. 

Is there a way to list what you need to install, no more, no less, to deploy the project? 

**EDIT** In view of the answers below, some clarification. My project consists of a bunch of modules (that I wrote), each with a bunch of `import`s. Should I just copy-paste all the imports from all modules into a single file, sort eliminating duplicates, and throw out all from the standard library (and how do I know they are)? Or is there a better way? That&#39;s the question. 

List dependencies in Python

I received these errors when i started new project in android studio.
                  &gt; Error:(1) Error retrieving parent for item: No resource found that matches the given name &#39;android:TextAppearance.Material.Widget.Button.Borderless.Colored&#39;.

&gt;Error:(1) Error retrieving parent for item: No resource found that matches the given name &#39;android:TextAppearance.Material.Widget.Button.Borderless.Colored&#39;.

&gt;Error:Execution failed for task &#39;:app:processDebugResources&#39;.
&gt; com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process &#39;command &#39;C:\Program Files (x86)\Android\android-sdk\build-tools\23.0.2\aapt.exe&#39;&#39; finished with non-zero exit value 1

File in android project contains error is given below:

     &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
     &lt;resources&gt;
      &lt;style name=&quot;Base.TextAppearance.AppCompat.Widget.Button.Borderless.Colored&quot; parent=&quot;android:TextAppearance.Material.Widget.Button.Borderless.Colored&quot;/&gt;
      &lt;style name=&quot;Base.TextAppearance.AppCompat.Widget.Button.Colored&quot; parent=&quot;android:TextAppearance.Material.Widget.Button.Colored&quot;/&gt;
      &lt;style name=&quot;TextAppearance.AppCompat.Notification.Info.Media&quot;/&gt;
      &lt;style name=&quot;TextAppearance.AppCompat.Notification.Media&quot;/&gt;
      &lt;style name=&quot;TextAppearance.AppCompat.Notification.Time.Media&quot;/&gt;
      &lt;style name=&quot;TextAppearance.AppCompat.Notification.Title.Media&quot;/&gt;
     &lt;/resources&gt;

build.gradle:

    apply plugin: &#39;com.android.application&#39;
    android {
    compileSdkVersion 23
    buildToolsVersion &quot;23.0.2&quot;

    defaultConfig {
        applicationId &quot;com.example.anmol.checkboxapp&quot;
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName &quot;1.0&quot;
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.pro&#39;
        }
    }
    }
    dependencies {
    compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
    compile &#39;com.android.support:appcompat-v7:25.1.0&#39;
    }
If anyone have solution of this problem so please help      

Error retrieving parent for item: No resource found that matches the given name &#39;android:TextAppearance.Material.Widget.Button.Borderless.Colored&#39;

I can&#39;t find this information. Is it true that Android React Native runs on sdkMin18 and therefore makes it supported by most android versions?

Which version does React Native support (iOS and Android)?

<p>I can't find this information. Is it true that Android React Native runs on sdkMin18 and therefore makes it supported by most android versions?</p>


What is the benefit of using Retrofit in combination with Rxjava?

Why is RxJava often used with Retrofit?

&gt; Installation failed with message Invalid File:
&gt; K:\project\app\build\intermediates\split-apk\with_ImageProcessor\debug\slices\slice_0.apk.
&gt; It is possible that this issue is resolved by uninstalling an existing
&gt; version of the apk if it is present, and then re-installing.
&gt; 
&gt; WARNING: Uninstalling will remove the application data!
&gt; 
&gt; Do you want to uninstall the existing application?

i am running my project in android studio 2.3 beta 3 .

Installation failed with message Invalid File

I refer [this][1]. Schedules Activity is appeared when I click Schedules,  but first item color (Favorites) is always selected. It doesn&#39;t change Schedules item color from Favorites item color. And also, third item (Music). I use **android:state_checked** NOT **android:state_enabled**.&quot; If working with startActivity, it doesn&#39;t change Schedules item color from Favorites item color. If not, it change color. How to solve this color select problems.

activity_main.xml

    app:itemIconTint=&quot;@drawable/nav_item_color_state&quot;
    app:itemTextColor=&quot;@drawable/nav_item_color_state&quot;
    app:menu=&quot;@menu/bottom_navigation_main&quot;

@drawable/nav_item_color_state

    &lt;selector xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;&gt;
        &lt;item android:color=&quot;@color/white&quot; android:state_enabled=&quot;true&quot; /&gt;
        &lt;item android:color=&quot;@color/colorPrimaryDark&quot; android:state_enabled=&quot;false&quot; /&gt;
    &lt;/selector&gt;




  [1]: https://medium.com/@hitherejoe/exploring-the-android-design-support-library-bottom-navigation-drawer-548de699e8e0#.vmqn5e5xi

item selected color in android BottomNavigationView

I would like to modify Android OS (official image from AOSP) to add preprocessing to a normal phone call playback sound.

I&#39;ve already achieved this filtering for app audio playback (by modifying *HAL* and *audioflinger*).

I&#39;m OK with targeting only a specific device (Nexus 5X). Also, I only need to filter playback - I don&#39;t care about recording (uplink).

*UPDATE #1:* 

To make it clear - I&#39;m OK with modifying Qualcomm-specific drivers, or whatever part that it is that runs on Nexus 5X and can help me modify in-call playback.


*UPDATE #2:* 

I&#39;m attempting to create a Java layer app that routes the phone playback to the music stream in real time.

I&#39;ve already succeeded in installing it as a system app, getting permissions for initializing `AudioRecord` with `AudioSource.VOICE_DOWNLINK`. However, the recording gives blank samples; it doesn&#39;t record the voice call.

This is the code inside my worker thread:

    // Start recording
    int recBufferSize = AudioRecord.getMinBufferSize(44100, AudioFormat.CHANNEL_IN_STEREO, AudioFormat.ENCODING_PCM_16BIT);
    mRecord = new AudioRecord(MediaRecorder.AudioSource.VOICE_DOWNLINK, 44100, AudioFormat.CHANNEL_IN_STEREO, AudioFormat.ENCODING_PCM_16BIT, recBufferSize);

    // Start playback
    int playBufferSize = AudioTrack.getMinBufferSize(44100, AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_16BIT);
    mTrack = new AudioTrack(AudioManager.STREAM_MUSIC, 44100, AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_16BIT, playBufferSize, AudioTrack.MODE_STREAM);

    mRecord.startRecording();;
    mTrack.play();

    int bufSize = 1024;
    short[] buffer = new short[bufSize];
    int res;
    while (!interrupted())
    {
        // Pull recording buffers and play back
        res = mRecord.read(buffer, 0, bufSize, AudioRecord.READ_NON_BLOCKING);
        mTrack.write(buffer, 0, res, AudioTrack.WRITE_BLOCKING);
    }

    // Stop recording
    mRecord.stop();
    mRecord.release();
    mRecord = null;

    // Stop playback
    mTrack.stop();
    mTrack.release();;
    mTrack = null;


I&#39;m running on a Nexus 5X, my own AOSP custom ROM, Android 7.1.1. I need to find the place which will allow call recording to work - probably somewhere in `hardware/qcom/audio/hal` in platform code.

Also I&#39;ve been looking at the function `voice_check_and_set_incall_rec_usecase` at `hardware/qcom/audio/hal/voice.c` However, I wasn&#39;t able to make sense of it (how to make it work the way I want it to).

*UPDATE #3:*

  I&#39;ve opened [a more-specific question](https://stackoverflow.com/questions/43818736/call-recording-make-audiosource-voice-downlink-work-on-nexus-5x-rooting-or-cu) about using `AudioSource.VOICE_DOWNLINK`, which might draw the right attention and will eventually help me solve this question&#39;s problem as well.


Modifying in-call voice playback in Android custom ROM

After having read [this article about Memory Leaks][1], I am wondering whether using lambdas in Kotlin Android project is safe. It&#39;s true that lambda syntax makes me program with more ease, but what about the Memory Leaks ?

As an example of the problematic, I&#39;ve taken a piece of code from one of my projects, where I build an AlertDialog. This code is inside the MainActivity class of my project.

    fun deleteItemOnConfirmation(id: Long) : Unit {
            val item = explorerAdapter.getItemAt(id.toInt())
            val stringId = if (item.isDirectory) R.string.about_to_delete_folder else R.string.about_to_delete_file

            val dialog = AlertDialog.Builder(this).
                    setMessage(String.format(getString(stringId), item.name)).setPositiveButton(
                    R.string.ok, {dialog: DialogInterface, id: Int -&gt;
                            val success = if (item.isDirectory) ExplorerFileManager.deleteFolderRecursively(item.name)
                            else ExplorerFileManager.deleteFile(item.name)
                            if (success) {
                                explorerAdapter.deleteItem(item)
                                explorerRecyclerView.invalidate()
                            }
                            else Toast.makeText(this@MainActivity, R.string.file_deletion_error, Toast.LENGTH_SHORT).show()
                        }).setNegativeButton(
                    R.string.cancel, {dialog: DialogInterface, id: Int -&gt;
                        dialog.cancel()
            })

            dialog.show()
    }

My question is very simple : can the two lambdas set for positive and negative buttons lead to Memory Leaks ? (I also mean, are kotlin lambdas simply converted to Java Anonymous functions ?)

Edit : Maybe I&#39;ve got my answer [in this Jetbrains Topic][2].


  [1]: https://medium.com/freenet-engineering/memory-leaks-in-android-identify-treat-and-avoid-d0b1233acc8#.yet4778q1
  [2]: https://discuss.kotlinlang.org/t/function-literals-and-reference-to-enclosing-class/416

Kotlin : safe lambdas (no memory leak)?

I have a slight issue when build my Xcode project, get tones of warning after update pod. It looks like this

[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/kDrX2.png

Already search the whole site here but still no luck. it doesn&#39;t affect the project but it is quite annoying. Anyone could help? 

How to remove the Xcode warning Apple Mach-O Linker Warning &#39;Pointer not aligned at address

When I read [Apple Docs][1], they mention 3 types of notification: local, remote, and silent.

Local notification can be inferred from its name, that is sent by the app locally.

However, what is the difference between the other two types?



  [1]: https://developer.apple.com/library/content/documentation/General/Conceptual/WatchKitProgrammingGuide/BasicSupport.html

What are different types of notifications in iOS and how to configure them correctly?

I have created the app id with APNS enabled and I configured both development and production certificate

Now when I create entitlements it is always displaying development even If I change the Provisioning profile to iTunes deployment also the entitlements is displayed as development

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
    &lt;!DOCTYPE plist PUBLIC &quot;-//Apple//DTD PLIST 1.0//EN&quot; &quot;http://www.apple.com/DTDs/PropertyList-1.0.dtd&quot;&gt;
    &lt;plist version=&quot;1.0&quot;&gt;
    &lt;dict&gt;
	&lt;key&gt;aps-environment&lt;/key&gt;
	&lt;string&gt;development&lt;/string&gt;
    &lt;/dict&gt;
    &lt;/plist&gt;


aps-environment is always development

My React Native app works in the XCode simulator with no issues, but when I run in a physical device, my iPhone, there&#39;s a problem. The app launches and gets stuck on the React Native splash screen, the after 10-15 seconds the app crashes/closes. What&#39;s the cause of this and how can I prevent it? 

React native app stuck on splash screen on device but works in simulator

I have working open webLink url codes in `Swift3` but when I use it gives me this warning;

&gt;&#39;openURL&#39; was deprecated in iOS 10.0: Please use openURL:options:completionHandler: instead

How can I resolve it, my codes under below.

    let myUrl = &quot;http://www.google.com&quot;
     if !myUrl.isEmpty {
                                    UIApplication.shared.openURL(URL(string: &quot;\(myUrl)&quot;)!)
                                }

Thank you.

&#39;openURL&#39; was deprecated in iOS 10.0: Please use openURL:options:completionHandler: instead in Swift 3

I&#39;ve added Linux Biolinum fonts (http://www.dafont.com/linux-biolinum.font, LinBiolinum_R.ttf, LinBiolinum_RB.ttf) to my React Native project. Android version is OK. But on iOS I always see error *&quot;Unrecognized font family LinBiolinum_R&quot;*.

[![enter image description here][1]][1]


My style is:

    customFontRegular: {
        fontFamily: &#39;LinBiolinum_R&#39;,
    },

I&#39;ve tryied to rename font file and font family to &quot;MyFont&quot;, but the error appears again on iOS.

Any ideas?


  [1]: https://i.stack.imgur.com/MRD8Y.png

Unrecognized font family on iOS simulator with React Native

So a while ago I deleted the /ios directory in my react native app (let&#39;s call it X). I&#39;ve been developing and testing using the android emulator but now I&#39;d like to make sure it works on ios with xcode simulator etc. 

So my current idea is to create a new react native bare project (let&#39;s call it Y) with ios folder, then follow [these steps][1] to rename Y so that it has the name of X and then moving the /ios directory from Y into X and trying to `run-ios`. 

I&#39;ll update here how that goes, but I wondered if there is a better way and has nobody been in this situation before?

I&#39;ve googled lots of things &#39;regenerate ios folder&#39; &#39;deleted ios folder&#39; &#39;add ios folder to existing..&#39; and nothing helpful. Maybe my googlefu isn&#39;t good enough but if anyone has any suggestions, much appreciated.

Step 2 will be making sure it compiles because of dependencies and stuff but for now my goal is to just get the /ios folder back in the project and for React Native to be aware of it&#39;s existence (it has all the necessary config).

Thanks


  [1]: http://blog.tylerbuchea.com/renaming-a-react-native-project/

How can I regenerate ios folder in React Native project?

Is it possible to loop an identical component in Render function?

Something like this:

    ...

    onPress = () =&gt; {
     ...
    };

    initialArr = [[&quot;blue&quot;,&quot;text1&quot;],[&quot;red&quot;,&quot;text2&quot;]];
    buttonsListArr = [];

    for (let i = 0; i &lt; initialArr.length; i++) 
    {
     buttonsListArr.push(
       &lt;Button style={{borderColor:{initialArr[i][0]}}} onPress={this.onPress.bind(this)}&gt;{initialArr[i][1]}&lt;/Button&gt;
     );
    }

    ...

    render() {
      return (
        &lt;View style={...}&gt;
         {buttonsListArr}
        &lt;/View&gt;
    )};

I mean this is just finite list of components, so any components like ListView/ScrollView etc is not applicable in this particular case. This is just syntax question.


How to loop and render elements in React-native?

I am working on [tutorial][1] for React Native navigation. I found out that all layout starts loading from top of screen instead of below of the status bar. This causes most layouts to overlap with the status bar. I can fix this by adding a padding to the view when loading them. Is this the actual way to do it? I don&#39; think manually adding padding is an actual way to solve it. Is there a more elegant way to fix this?

    import React, { Component } from &#39;react&#39;;
    import { View, Text, Navigator } from &#39;react-native&#39;;

    export default class MyScene extends Component {
        static get defaultProps() {
                return {
                        title : &#39;MyScene&#39;    
                };  
        }   
        render() {
                return (
                        &lt;View style={{padding: 20}}&gt; //padding to prevent overlap
                                &lt;Text&gt;Hi! My name is {this.props.title}.&lt;/Text&gt;
                        &lt;/View&gt; 
                )   
        }    
    }

Below shows the screenshots before and after the padding is added.
[![enter image description here][2]][2]


  [1]: http://facebook.github.io/react-native/docs/using-navigators.html#content
  [2]: https://i.stack.imgur.com/e25r1.jpg

How to prevent layout from overlapping with iOS status bar

I have built an application with flutter that works like a reminder.&lt;br&gt;
How can I display notifications to the user even though the app is closed?

Flutter: Push notifications even if the app is closed

My android application using Kotlin is throwing this exception when I try to Run &#39;app&#39; in the emulator o in my cellphone. When I build my project it runs well, with no errors.

I am using: 

- SDK 28 (Android 9.0 (Pie))
- Gradle 5.1.1
- Gradle Plugin 3.5.0-alpha03
- Kotlin 1.3.10
- Java 1.8.0_151
- OSX 10.13.2


```
    org.gradle.internal.exceptions.LocationAwareException: buildOutput.apkData must not be null
    	at org.gradle.initialization.exception.DefaultExceptionAnalyser.transform(DefaultExceptionAnalyser.java:99)
    	at org.gradle.initialization.exception.DefaultExceptionAnalyser.collectFailures(DefaultExceptionAnalyser.java:65)
    	at org.gradle.initialization.exception.MultipleBuildFailuresExceptionAnalyser.transform(MultipleBuildFailuresExceptionAnalyser.java:39)
    	at org.gradle.initialization.exception.StackTraceSanitizingExceptionAnalyser.transform(StackTraceSanitizingExceptionAnalyser.java:29)
    	at org.gradle.initialization.DefaultGradleLauncher.finishBuild(DefaultGradleLauncher.java:194)
    	at org.gradle.initialization.DefaultGradleLauncher.finishBuild(DefaultGradleLauncher.java:141)
    	...
    Caused by: java.lang.IllegalStateException: buildOutput.apkData must not be null
    	at com.android.build.gradle.internal.ide.EarlySyncBuildOutput$Companion$load$2.invoke(EarlySyncBuildOutput.kt:103)
    	at com.android.build.gradle.internal.ide.EarlySyncBuildOutput$Companion$load$2.invoke(EarlySyncBuildOutput.kt:67)
    	at kotlin.sequences.TransformingSequence$iterator$1.next(Sequences.kt:174)
    	at kotlin.sequences.SequencesKt___SequencesKt.toCollection(_Sequences.kt:691)
    	at kotlin.sequences.SequencesKt___SequencesKt.toMutableList(_Sequences.kt:721)
    	at kotlin.sequences.SequencesKt___SequencesKt.toList(_Sequences.kt:712)
    	...
```


Cause: buildOutput.apkData must not be null

Why I didn&#39;t see Auto-Renewable Subscription in iTunes Connect -&gt; In-App Purchases -&gt; Select the In-App Purchase you want to create.

I see only Consumable, Non-Consumable, Non-Renewing Subscription
[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/FUbRQ.png

Why I didn&#39;t see Auto-Renewable Subscription in iTunes Connect

I want to install xcode to deploy a cross platform flutter application but I cant find enough space for Xcode is there any alternative solutions to just installing it on the internal storage

Content Type	Original Author	Original Content on Stackoverflow
Question	Joe	View Question on Stackoverflow
Solution 1 - Android	Murat Karagöz	View Answer on Stackoverflow
Solution 2 - Android	Artem Bochkarev	View Answer on Stackoverflow
Solution 3 - Android	laurent	View Answer on Stackoverflow

Which version does React Native support (iOS and Android)?

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

Solution 3 - Android

Error retrieving parent for item: No resource found that matches the given name 'android:TextAppearance.Material.Widget.Button.Borderless.Colored'

List dependencies in Python

Attributions