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I created a program and made APK file. After that i change the extension and put .zip file and when i extract that file it shows all my file.

It means anyone can extract and see, then there is no security.

How to do more security.

What I have tried:

I tried proguard for this. but how to incorporate with the APK file.
Herman<T>.Instance 10-May-16 9:41am    
Tried to set a password while creating the ZIP???
Mike (Prof. Chuck) 26-May-16 3:40am    
if proguard is used right, it obfuscates your apk, so all your classes and methods are named like a.aa.aba.a(x,xx,xzzx) and no one can read it.
Also release-sign your apk with a keystore and private key. You need to do that anyway before you can put your app to the play store.

Please follow the guidelines by Google.

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