Develop Reference

How can I open my React Native App from the browser?

I would like to open my app from the browser.
example: I open a browser, type in: https://open.my.app, or app://www.example.com and have my app as an option come up.
I read about Deep Links and I am quite sure I set up my project properly, YET nothing happens when I either try to type and run: https://open.my.app, app://www.example.com
My AndroidManifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.somemobileapp">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
<application
android:name=".MainApplication"
android:label="#string/app_name"
android:icon="#mipmap/ic_launcher"
android:allowBackup="false"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:launchMode="singleTask"
android:label="#string/app_name"
android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
android:windowSoftInputMode="adjustResize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.BROWSABLE" />
<!-- Change these two in the future to a proper one -->
<data android:scheme="https" android:host="www.example.com" />
<data android:scheme="app" android:host="open.my.app" />
</intent-filter>
</activity>
<activity android:name="com.facebook.react.devsupport.DevSettingsActivity" />
</application>
</manifest>
So even after this, it's not working.

I know it will sound strange but keeping the data tag on first worked for me
<intent-filter>
<!-- data on first -->
<data android:scheme="http" android:host="abc.in"/>
<action android:name="android.intent.action.MAIN" />
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.BROWSABLE"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>

Trouble with Android apk

I have an app that I uploaded to the Google Play Store. It stops running once downloaded or can't be downloaded at all. I'm pretty sure there's something wrong with my manifest as that's the error. I'm going to add my app release apk and manifest file.
Asking if someone could help me find the issue, it shouldn't be a terrible error, but I can't seem to figure it out.
Thanks.
Manifest file below:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="com.Houston_Rockets_Team_App">
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme"
android:debuggable="false"
tools:ignore="HardcodedDebugMode">
<activity
android:name="com.Houston_Rockets_Team_App.Houston_Rockets_Team_App.MainActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name="com.Houston_Rockets_Team_App.Houston_Rockets_Team_App.PlayersActivity" android:label="#string/app_name">
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<!-- <data android:mimeType="image/png" /> -->
</intent-filter>
</activity>
<activity android:name="com.Houston_Rockets_Team_App.Houston_Rockets_Team_App.StaffActivity" android:label="#string/app_name">
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<!-- <data android:mimeType="image/png" /> -->
</intent-filter>
</activity>
<activity android:name="com.Houston_Rockets_Team_App.Houston_Rockets_Team_App.Settings" android:label="#string/app_name">
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<!-- <data android:mimeType="image/png" /> -->
</intent-filter>
</activity>
<activity android:name="com.Houston_Rockets_Team_App.Houston_Rockets_Team_App.AboutActivity" android:label="#string/app_name">
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<!-- <data android:mimeType="image/png" /> -->
</intent-filter>
</activity>
<activity android:name="com.Houston_Rockets_Team_App.Houston_Rockets_Team_App.EditPrefs" android:label="#string/app_name">
<intent-filter android:label="#string/app_name">
<action android:name="android.intent.action.SEND" />
<category android:name="android.intent.category.DEFAULT" />
<!-- <data android:mimeType="image/png" /> -->
</intent-filter>
</activity>
</application>
Here's the apk, I'm hoping it can be opened.
https://drive.google.com/file/d/18VT9Gl4adwBGuMa_omGWtjf0IM4Rc0RD/view?usp=sharing

-I found your bug and its mainActivity not found error raise.
-Please check your MainActivity path into the manifest and set right classpath into the manifest that will solve your error.

App not showing in launcher

After installing an app via the run command on Android Studio, the app launches correctly, I can see it in the applications list and account manager.
The problem is that it doesn't show up at all in the app launcher. (I have Google Launcher installed on the Nexus 5 device which I am testing on and everything was working fine before 6.0.1).
App name is "Pumpkin".
Here is the manifest
And here's the screenshot where Pumpkin's supposed to fit.

Your Intent-Filter seems to be wrong. Change to:
<activity
android:name="com.pumpkin.activities.SplashScreenActivity"
android:label="#string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<data android:scheme="pumpkin.com" android:host="open" />
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
</intent-filter>
</activity>

Add this intent filter to your splash screen activity:
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>

your deep link
https://sureassure.com
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<activity android:name=".Main2Activity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="https"
android:host="sureassure.com" // website name
/>
</intent-filter>
</activity>
</application>

my android application doesn't appear on my phone when I installed it

I've developed my first Android application and I have published it on Google play, but when I try to install it, it installs but doesn’t appear on the phone.
Here is the manifestAndroid.xml , I believe that my configuration is the reason why.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="testconverteo.ismail.converteo"
android:versionCode="5"
android:versionName="1.1b" >
<uses-permission android:name = "android.permission.INTERNET" />
<uses-permission android:name = "android.permission.ACCESS_NETWORK_STATE" />
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="15" />
<!-- Used for Google Play Store Campaign Measurement-->
<application
android:name="Myapp"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<service android:name="com.google.android.gms.analytics.CampaignTrackingService" />
<receiver android:name="com.google.android.gms.analytics.CampaignTrackingReceiver"
android:exported="true">
<intent-filter>
<action android:name="com.android.vending.INSTALL_REFERRER" />
</intent-filter>
</receiver>
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<!-- The BROWSABLE category is required in order for the intent filter to be accessible from a web browser -->
<category android:name="android.intent.category.BROWSABLE" />
<!-- Accepts URIs that begin with "http://www.appconverteo.com/application” -->
<data android:scheme="http"
android:host="www.appconverteo.com"
android:pathPrefix="/application" />
</intent-filter>
</activity>
<activity
android:name=".LoginDisplayActivity"
android:label="#string/title_activity_login_display" />
</application>
</manifest>
What should I do to solve this problem ?
Thanks

you need to separate the .MainActivity intent filter into two different intent filters.
one filter to appear on the launcher and a separate filter to be browsable.
<!-- this makes it available to the launcher -->
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<!-- this makes it openable with browser -->
<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.BROWSABLE" />
<!-- Accepts URIs that begin with "http://www.appconverteo.com/application” -->
<data android:scheme="http"
android:host="www.appconverteo.com"
android:pathPrefix="/application" />
</intent-filter>
ps.: you should test BEFORE pushing to Google Play.

You should have 2 intent filters inside your manifest, one for each intent type you want to receive.
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="http"
android:host="www.appconverteo.com"
android:pathPrefix="/application" />
</intent-filter>
</activity>
From android docs:
http://developer.android.com/guide/components/intents-filters.html
When you want to handle multiple kinds of intents, but only in
specific combinations of action, data, and category type, then you
need to create multiple intent filters.

I had the same issue and my solution was to remove another intent filter I assigned to another activity I tested before. Maybe this helps someone.

Custom scheme doesn't seem to launch in the app intent

I'm trying to create an Android app that needs to use OAuth to authenticate (with the Google Wave data API)
I've specified a custom scheme in my AndroidManifest.xml so that any views to a url beginning "braindump://" should go to my app:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.enigmagen.braindump"
android:versionName="0.1"
android:versionCode="1">
<uses-sdk android:minSdkVersion="7"></uses-sdk>
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application
android:icon="#drawable/icon"
android:label="#string/app_name"
android:debuggable="true">
<activity
android:name=".BrainDump"
android:label="#string/app_name"
android:launchMode="singleInstance">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="braindump" />
</intent-filter>
</activity>
</application>
</manifest>
All that happens though is that after the redirect, the browser address shows the correct URL, but the page content is
You do not have permission to open this page.
braindump://rest_of_address_here
Is there a specific permission that needs to be set to allow this sort of behaviour?

I had the exact same problem (OAuth) and this is how I fixed it.
I've separated my Main from the class that will act on the URI.
Here's how the AndroidManifest.xml should look like:
<?xml version="1.0" encoding="utf-8"?>
[snip]
<activity android:label="#string/app_name" android:name="MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:label="#string/app_name" android:name="OAUTHActivity">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="myscheme" android:host="oauth" />
</intent-filter>
</activity>
</application>
[/snip]
And I was able to open URIs like myscheme//oauth?oauth_verifier=xxx&oauth_token=yyy

Actually, it's possible to do it with only one activity, just creating one more intent filter. Like this:
<activity android:name=".MyActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW"/>
<category android:name="android.intent.category.DEFAULT"/>
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="my_scheme" android:host="my_app_host.com" />
</intent-filter>
</activity>

I don't think this is exactly the cause of your problem, but I got this same error "You do not have permission to open this page" and it was because I was using a scheme with a capital letter. eg "Celly" instead of "celly". This worked fine in the emulator but failed on real devices. Changing it all to lowercase fixed it.

According to the common tasks that should be:
<scheme android:name="braindump" />