android studio build.gradle quick couse 1 by pkrss

== android studio build.gradle ==

1.define custom variable in module build.gradle:

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def a = true
def b = "string"

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2.use if condition variable in module build.gradle:

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if(a)
    apply plugin: 'com.android.library'
else
    apply plugin: 'com.android.application'

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3.define custom global whole module variable in one project build.gradle:

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1. define it in project root build.gradle:
project.ext.set("buildRelease", true)

2.used it in sub module build.gradle:
if(buildRelease)
    apply plugin: 'com.android.library'
else
    apply plugin: 'com.android.application'

//
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4.define task in build.gradle: (sample with widows path style)

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def proguardJar(String target){
    exec{
        workingDir './../../tools/guard'
        commandLine 'cmd', '/c', 'proguard5.2.1\\bin\\proguard.bat',"-include", 'profile/' + target + '.txt'
    }
}
def makeJar(String target){
    exec{
        executable "jar"   //jar program
        args "cvf","../../tools/guard/injars/" + target + ".jar"
        args "-C", "../" + target + "/build/intermediates/classes/release"
        args "","."
    }

    proguardJar(target)
}

def releaseDocSource(String ver){
    exec{
        workingDir './../../tools/bat'
        commandLine 'cmd', '/c', 'copyres.bat',ver
    }
}

task buildLib(dependsOn:['build'])<< {
    makeJar("benshoujisdk")
    releaseDocSource("1.1.13")
}

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5. how to run custom task in android studio

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it is called 'Gradle projects', in right panel of android studio, then click num 4 button, it likes green ring, and comment  'Execute Gradle Task'. then will open one popup window

line one Gradle project: click right drop button,select one project,
line two Command line: type task name, like above "buildLib"
line three: click ok.
after that,you can see the logs in "Run" or "Gradle Console" panel in the bottom of android studio.

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6. how to add one exist android studio module in android studio project.

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copy your exist andriod studio module folder into andriod studio project.
then edit settings.gradle, and add it: include ':your new module folder name'

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7. what is the shortkey like undo ctrl+z

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in some editor,it call ctrl+y,but in android studio,default is shirt+ctrl+z
and:
alt+f7: see useage of some class or function
f7: step in
f8: step over
f9: run
esc: close quick search float bar

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8. add some libs or module or aar depends

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1.edit your module/build.gradle:
dependencies {
    compile(name: 'CyberLink4Android', ext: 'aar')  // add depends: CyberLink4Android aar
    // compile fileTree(include: ['*.jar'], dir: 'libs')  // add depends: all libs/* jar
    compile 'com.android.support:support-v4:23.0.1'  // add depends: android.support.v4 by online mode
    compile project(':mdns')  // add depends: mdns module project depends
}

//
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9. jni ndk developer quickly tip

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1.install ndk
edit your ndk and sdk path in local.properties,like this:
ndk.dir=D\:\\sdk\\android-ndk-r10e
sdk.dir=D\:\\sdk\\androidsdk

2.copy files into your module/src/main/jni


3.edit gradle.properties,if not exist,create it
android.useDeprecatedNdk=true

4,edit your module build.gradle, like bellow: (some is not need,modify as your need)

android {
    sourceSets.main {
        jniLibs.srcDir 'src/main/libs'
        jni.srcDirs = []
    }
    defaultConfig {

        ndk {
            moduleName "jdns_sd"
            ldLibs "log"
            abiFilters "armeabi", "x86"
            cFlags "-DMDNS_DEBUGMSGS=0 -DTARGET_OS_ANDROID -DUSES_BROADCAST_AND_MULTICAST -DNOT_HAVE_SA_LEN -DUSES_NETLINK" +
                    " -I${project.buildDir}/../src/main/jni -I${project.buildDir}/../src/main/jni/mDNSShared -I${project.buildDir}/../src/main/jni/mDNSCore -I${project.buildDir}/../src/main/jni/mDNSPosix"
        }
    }
    buildTypes {
        release {
            debuggable false
            jniDebuggable false
            minifyEnabled false
        }
        debug {
            debuggable true
            jniDebuggable true
            ndk {
                cFlags "-g -D_DEBUG -UNDEBUG"
            }
        }
    }
}


task genJavaH(dependsOn: ['build']) << {
    exec {
        workingDir 'src/main'
        commandLine 'javah', '-force', '../../build/intermediates/classes/debug', '-o', 'jni/DNSSD.java.h','com.apple.dnssd.AppleDNSSD com.apple.dnssd.AppleBrowser com.apple.dnssd.AppleResolver com.apple.dnssd.AppleRegistration com.apple.dnssd.AppleQuery com.apple.dnssd.AppleDomainEnum com.apple.dnssd.AppleService com.apple.dnssd.AppleDNSRecord com.apple.dnssd.DNSSDEmbedded'
    }
}


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