I'm trying to develop an app for my (very) old Android phone with Gingerbread, api 10.
But with android studio as IDE the problems seem to go on forever:
- in project wizard, only api>=14 is supported
- so I choose 14 and want to change later on
- I change minSdkVersion in build.gradle(:app) to 10 ->
minSdkVersion 10 cannot be smaller than version 14 declared in library - so I change
implementation 'com.android.support:appcompat-v7:26.1.0'toimplementation 'com.android.support:appcompat-v7:25.1.0' - I get errors¹ that some generated gradle chache files "values-v14.xml" are missing ressources
…and that's the point I don't know how to go on
As I thought, it can't be true, a project throws that manny errors, and I did not create a single class and did not write a single line of code, I tried building from commandline.
It works, but I got used to IDE-features and don't like missing them. So my question is:
How to develop a legacy android app for api levels down to 10 with android studio?
Is there a guide to go on fitting the project to api 10?
Was I on the "right" path at all?
Is there maybe a skeleton-project for a api level 10 app, which I could import (as if I could choose api 10 in project wizard)?
I am aware of the reasons, Google doesn't support api<14 anymore.
Still I don't see why I shouldn't be able to use my perfectly healthy hardware.
And still would I like to be able to write a simple app for my old phone.
¹ error log:
Information:Gradle tasks [:app:assembleDebug]
/home/aik/.gradle/caches/transforms-1/files-1.1/appcompat-v7-25.1.0.aar/2ab2d76d88a035b2d8a733b1b9a020a8/res/values-v14/values-v14.xml
Error:(8, 5) error: style attribute 'android:attr/textAllCaps' not found.
Error:resource android:style/TextAppearance.Material not found.
Error:resource android:style/TextAppearance.Material.Body1 not found.
Error:resource android:style/TextAppearance.Material.Body2 not found.
/home/aik/test_api10/app/build/intermediates/incremental/mergeDebugResources/merged.dir/values-v14/values-v14.xml
Error:(5) style attribute 'android:attr/textAllCaps' not found.
Error:resource android:style/TextAppearance.Material.Button not found.
Error:resource android:style/TextAppearance.Material.Caption not found.
Error:resource android:style/TextAppearance.Material.Display1 not found.
Error:resource android:style/TextAppearance.Material.Display2 not found.
Error:resource android:style/TextAppearance.Material.Display3 not found.
Error:resource android:style/TextAppearance.Material.Display4 not found.
Error:resource android:style/TextAppearance.Material.Headline not found.
Error:resource android:style/TextAppearance.Material.Inverse not found.
Error:resource android:style/TextAppearance.Material.Large not found.
/home/aik/test_api10/app/build/intermediates/incremental/mergeDebugResources/merged.dir/values-v11/values-v11.xml
Error:(6) error: resource android:attr/textColorHighlightInverse not found.
Error:(7) error: resource android:attr/textColorLinkInverse not found.
Error:(12) error: resource android:attr/textColorHighlightInverse not found.
Error:(13) error: resource android:attr/textColorLinkInverse not found.
Error:resource android:style/TextAppearance.Material.Large.Inverse not found.
Error:resource android:style/TextAppearance.Material.Widget.PopupMenu.Large not found.
Error:resource android:style/TextAppearance.Material.Widget.PopupMenu.Small not found.
Error:java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details
Error:java.util.concurrent.ExecutionException: com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details
Error:com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details
Error:Execution failed for task ':app:processDebugResources'.
> Failed to execute aapt
Information:BUILD FAILED in 10s
Information:25 errors
Information:0 warnings
Information:See complete output in console
EDIT I modified my gradle:app to match with the one from ישו אוהב אותך's skeleton-project. I did have to change compileSdkVersion, targetSdkVersion and androidTestImplementation in addition to my tries mentioned above. File looks like this now:
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
defaultConfig {
applicationId "dj.kai.test_api10"
minSdkVersion 10
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:25.4.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
// this is the last support test for api >= 9
androidTestImplementation 'com.android.support.test:runner:1.0.0'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.0'
}
