Programmer algorithm practice must read, common Java API skills to share>>>

1. In the menu bar, find tools – > Android-> Enable ADB integration, check

2. Add debuggable true to buildtypes of build.gradle in app module, such as:

buildTypes {
        release {
            debuggable true
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }

3. Close studio, unplug the device, connect the device again and open studio