设置apk不覆盖安装，只需要修改build.gradle中的applicationId即可，
但是在安装7.0以上版本时，
需要把AndroidManifest.xml文件中关于7.0的私有目录配置中的路径修改成和applicationId一样
<provider android:name=”android.support.v4.content.FileProvider” android:authorities=”${APP_APPLICATION_FILEPROVIDER}” android:exported=”false” android:grantUriPermissions=”true”> <meta-data android:name=”android.support.FILE_PROVIDER_PATHS” 美国高防vps android:resource=”@xml/file_paths” /></provider> defaultConfig { applicationId APP_APPLICATION_PACKAGE_PATH minSdkVersion 19 targetSdkVersion 28 versionCode 1.0 versionName “1.0” //AndroidManifest 占位符 manifestPlaceholders = [APP_APPLICATION_FILEPROVIDER: APP_APPLICATION_FILEPROVIDER]}buildTypes {//BuildConfig常量参数 release { buildConfigField “String”, “APP_APPLICATION_FILEPROVIDER”, “\”” + APP_APPLICATION_FILEPROVIDER + “\”” } debug { buildConfigField “String”, “APP_APPLICATION_FILEPROVIDER”, “\”” + APP_APPLICATION_FILEPROVIDER + “\”” }} /** * 7.0私有目录访问权限 */public static final String fileprovider_path = BuildConfig.APP_APPLICATION_FILEPROVIDER;
然后在gradle.properties中设置两个常量参数，就可以全局调用了，
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