I want to save file to files system on Android to this path "/efs/wifi/" I created My file by FileWriter writer =new FileWriter (file,true) i want save this file to path above For root devices Another thing how can i copy from sd card to same path above "efs/wifi/" Please help me .
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Welcome to Stackoverflow! Please take a look at the link to review how to ask a good question. This will help others understand what you're looking for and provide a great answer. https://stackoverflow.com/help/how-to-ask – tarheel Nov 22 '17 at 02:31
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You can use libsupersu to make application for root device.
Add dependency to your gradle file:
compile 'eu.chainfire:libsuperuser:1.0.0.+'
In your code, ask root permission by:
Shell.SU.available();
After your app grant permission from user, you can copy file to anywhere to want.
Son Tieu
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Please write the code who will save my file to files system wirhout problems . Thanx for answer – Moataz Alking Nov 22 '17 at 02:48