Android 获取签名和android studio设置签名

Generate Signed APK出错：java.util.zip.ZipException: duplicate entry: android/support/annotation/IntegerRes.class

需要在build.gradle app中添加如下内容

defaultConfig {
........//省略
// Enabling multidex support. trying to fix
multiDexEnabled true

}
//需要添加如下内容
packagingOptions {
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/license.txt'
exclude 'META-INF/NOTICE'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/notice.txt'
exclude 'META-INF/ASL2.0'
exclude 'META-INF/services/javax.annotation.processing.Processor'
}

获取安卓应用签名工具下载