Android L Recyclerview 低版本支援

2014 Google IO 釋出了三個新元件，

直接引入的話會有一點問題，

附上可以順利編譯的設定，

AndroidManifest.xml
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.semoncat.yourpackage">

    <uses-sdk
        tools:node="replace" />
        
        ...
        
</manifest>
build.gradle
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android {
    compileSdkVersion 20
    buildToolsVersion '20.0.0'

    defaultConfig {
        minSdkVersion 15
        targetSdkVersion 20
        versionCode 1
        versionName "1.0"
    }
}

dependencies {
    compile 'com.android.support:recyclerview-v7:+'
    compile 'com.android.support:cardview-v7:+'
    compile 'com.android.support:palette-v7:+'
}