直接解壓包是不行的，編譯後出現各種問題，比如.9圖片的報錯

Error:Execution failed for task ':app:mergeDebugResources'.
> Error: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: 

解決方案如下：

1、下載apktool http://download.csdn.net/detail/baodinglaolang/9820742

2、安裝步驟：mac為例

Move both files (apktool.jar & apktool) to /usr/local/bin (root needed)
Make sure both files are executable (chmod +x)
Try running apktool via cli

3、執行

apktool d -f xxx.apk