Android Academy Weekly Quizz

AndroidManifest.xml

<manifest
        xmlns:android="http://schemas.android.com/apk/res/android"
        package="com.package.here">
      
    <application
            android:name="com.package.here.MyApplication"
            android:allowBackup="true"
            android:icon="@drawable/ic_launcher"
            android:label="@string/app_name"
            android:theme="@style/AppTheme">

Class.java

package com.package.here;

import android.content.Context;

public class MyClass {
    
    //Usage of our contextor class
    public void someMethod(){
        Context context = Contextor.getInstance().getContext();
        context.getResources().getDrawable(R.drawable.btn_add_extra);
    }
}

Contextor.java

package com.package.here;

import android.content.Context;

public class Contextor {

    private static Contextor instance;

    public static Contextor getInstance(){
        if(instance==null){
            instance = new Contextor();
        }
        return instance;
    }

    private Context mContext;

    public Contextor(){}

    public void init(Context context){
        mContext = context;
    }

    public Context getContext(){
        return mContext;
    }
}

MyApplication.java

package com.package.here;

import android.app.Application;

public class MyApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();
        Contextor.getInstance().init(getApplicationContext());
    }
}