Android application compatibility with old APIs

Question

我使用API​​ 22创建了一个应用，我想知道是否有必要创建一个新项目以使其与以前的版本兼容（例如与API 19兼容），或者我是否可以做一些更简单有效的事情

Answer 1

If you're using gradle just set the minSdkVersion to the number you'd like to use:

defaultConfig {
    applicationId "com.example.mypackage"
    minSdkVersion 16
    targetSdkVersion 24
    versionCode 1
    versionName "1.0"
}

in the app's build.gradle file

Answer 2

There are 2 way,

1) Set your "minSdkVersion" from gradle file

or

2) In Android Studio,

File --> Project Structure --> app (on left menu) --> Flavors

then set "Min Sdk Version"