Android/DiskLruCache

準備

以下追加

• app/build.gradle

dependencies {
    implementation 'com.jakewharton:disklrucache:2.0.2'
}

公式?

https://github.com/JakeWharton/DiskLruCache

google https://android.googlesource.com/platform/libcore/+/jb-mr2-release/luni/src/main/java/libcore/io/DiskLruCache.java

okhttp3 https://github.com/square/okhttp/blob/master/okhttp/src/main/java/okhttp3/internal/cache/DiskLruCache.java

mopub https://github.com/mopub/mopub-android-sdk/blob/master/mopub-sdk/mopub-sdk-base/src/main/java/com/mopub/common/DiskLruCache.java

使い方サンプル

参考:mopubでの使い方 https://github.com/mopub/mopub-android-sdk/blob/master/mopub-sdk/mopub-sdk-base/src/main/java/com/mopub/common/CacheService.java

permission追加

context.getExternalCacheDir()を使っており、KitKatから不要となったが、それ以前では必要なので以下のように追加する

<uses-permission
    android:name="android.permission.WRITE_EXTERNAL_STORAGE"
    android:maxSdkVersion="18" />

http://wada811.blogspot.com/2014/09/storage-access-and-permission-in-android.html