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MainActivity launchMode is singleTask (#27373)
Summary:
Most RN apps have single activity, and developers expect to resume application from background when app icon pressed. But Android default configuration creates a new activity instance, which confuses developers, see #27370 and #27368.

This PR changes template manifest so that when app icon pressed, background app will resume instead of creating a new activity, therefore match developers expectations. Also it's required to make Linking work.

## Changelog

[Android] [Changed] - MainActivity launchMode is singleTask
Pull Request resolved: #27373

Test Plan: RNTester will resume background app, instead of creating a new instance when app icon pressed

Differential Revision: D18766373

Pulled By: mdvacca

fbshipit-source-id: 697e9c5bf92ec958de265b060dffb50f7b74d157
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dulmandakh authored and facebook-github-bot committed Dec 2, 2019
1 parent 7e6fae2 commit 7a42596438018129d52ff04899ab4ddabd27cdcb
Showing 2 changed files with 2 additions and 0 deletions.
@@ -35,6 +35,7 @@
android:name=".RNTesterActivity"
android:label="@string/app_name"
android:screenOrientation="fullSensor"
android:launchMode="singleTask"
android:configChanges="orientation|screenSize|uiMode" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
@@ -14,6 +14,7 @@
android:name=".MainActivity"
android:label="@string/app_name"
android:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
android:launchMode="singleTask"
android:windowSoftInputMode="adjustResize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

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