build.gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 25
    buildToolsVersion "25.0.3"

    defaultConfig {
        applicationId "com.universal.textboom"
        minSdkVersion 19
        targetSdkVersion 21
    }

    signingConfigs {
        release {
            storeFile file('xxx')
            storePassword 
            keyAlias 
            keyPassword 
        }
    }

    lintOptions {
        checkReleaseBuilds false
        // Or, if you prefer, you can continue to check for errors in release builds,
        // but continue the build even when errors are found:
        abortOnError false
    }

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

        debug {
            signingConfig signingConfigs.release
        }
    }
}

dependencies {
    compile files('libs/csopensdk.jar')
    compile files('libs/okhttp-2.7.5.jar')
    compile files('libs/okio-1.7.0.jar')
    compile 'com.android.support:support-v4:25.3.1'
    compile 'com.android.support:appcompat-v7:25.3.1'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
}