摘要：存文件得时候，报错 1.权限问题添加权限：WRITE_EXTERNAL_STORAGE 2.目录要一层一层创建，先从最外层开始 阅读全文

摘要：Add this to you project-level build.gradle: buildscript { repositories { mavenCentral() } dependencies { classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8' } } Add this to your module-level build.gradle: apply plugin: 'android-apt' android { ... } dependencies { compile 'com.jakewharton:butterknife:8.0.1' apt 'com.jakewharton:butterknife-compiler:8.0.1' } 阅读全文