Increase minSdk to 19 for Android in order to allow builds

[basvdijk]

I got the error

Task :file_picker:processDebugAndroidTestManifest FAILED

/build/file_picker/intermediates/tmp/manifest/androidTest/debug/tempFile1ProcessTestManifest3410324268530054149.xml:5:5-74 Error:
	uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:flutter_plugin_android_lifecycle] //build/flutter_plugin_android_lifecycle/intermediates/merged_manifest/debug/AndroidManifest.xml as the library might be using APIs not available in 16
	Suggestion: use a compatible library with a minSdk of at most 16,
		or increase this project's minSdk version to at least 19,
		or use tools:overrideLibrary="io.flutter.plugins.flutter_plugin_android_lifecycle" to force usage (may lead to runtime failures)

On https://github.com/miguelpruivo/flutter_file_picker/blob/master/android/build.gradle#L28 the minSdkVersion is 16

Please increase it to at least 19

When building in Flutter it gives:

uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:flutter_plugin_android_lifecycle] 

• Api 16 is from October 2012 - https://developer.android.com/tools/releases/platforms#4.1
• Api 19 from December 2013 - https://developer.android.com/tools/releases/platforms#4.4

[github-actions]

This issue is stale because it has been open for 7 days with no activity.

[BalasubramaniSundaram95]

[github-actions]

This issue is stale because it has been open for 7 days with no activity.