how to hide "API URL" and "API KEY" from "ApiResources.java"

Question

my ApiResources.java look like this

package com.example.utils;

import com.example.R;

public class ApiResources {

    public static String adStatus="0",adMobBannerId="null", adMobInterstitialId="null", adMobPublisherId="null";


    String URL = "http://example/api/";

    String API_SECRECT_KEY = "api_secret_key=1kkzczxc8fny1fagc";

Answer 1

Step 1: Defining your key outside source code

Place the below line in your user-level gradle.properties file.

MyAwesomeApp_ApiKey="your-api-key-goes-here"

I prefer to use this format <Project Name>_<Key Property Name> so that I don’t mix up keys for different projects by mistake.

Step 2: Importing the key in your project

• Open your module-level build.gradle file (usually the one where you define dependencies for your app).
• Add your property in each of your build types.
• If you want to access the key from Java, then add it as a buildConfigField.
• If you want to access the key in your XML files (layouts and other resources), then add it as a resValue.

After doing that your build.gradle might look like this

buildTypes {
  debug {
    buildConfigField 'String', "ApiKey", MyAwesomeApp_ApiKey
    resValue 'string', "api_key", MyAwesomeApp_ApiKey
  }
  release {
    minifyEnabled false
    proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    buildConfigField 'String', "ApiKey", MyAwesomeApp_ApiKey
    resValue 'string', "api_key", MyAwesomeApp_ApiKey
  }
}

Step 3: Using the key in your app's code

• In Java now you can simply replace all your uses of API_SECRET_KEY with BuildConfig.ApiKey.
• In XML, you can refer to the key using @string/api_key.