why run the app directly in Android Studio，the result apk is unsigned

Question

I have configured the signature in the buildType code block, but when I run the app directly in Android Studio, the obtained apk is still unsigned, and I cannot get the signature information in the apk. enter image description here My build.gradle:

signingConfigs {
    debug {
        storeFile file('G:\\source\\AndroidSamples\\DiyView\\hwj.jks')
        storePassword '123456'
        keyAlias 'key0'
        keyPassword '123456'
    }
    release {
        storeFile file('G:\\source\\AndroidSamples\\DiyView\\hwj.jks')
        storePassword '123456'
        keyAlias 'key0'
        keyPassword '123456'
    }
}
buildTypes {
    release {
        minifyEnabled false
        signingConfig signingConfigs.release
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
    debug {
        minifyEnabled false
        signingConfig signingConfigs.debug
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}

apksigner verify -v.\app-debug.apk DOES NOT VERIFY ERROR: Missing META-INF/MANIFEST.MF

Answer 1

Change the build variant to release.

Simplest way is:

• double tap left shift key.
• Write variants.
• Click on build variants
• Select release from the dropdown.

At this point, click on Play button again.

Android Studio will install a signed apk.