SharedPreferences at Activity Level

Android Manifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.sparity.visitmdnow">


    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />


    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">


        <activity android:name=".SplashActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />


                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>


        <activity
            android:name=".LoginActivity"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="adjustPan|stateHidden" />
        <activity
            android:name=".HomeActivity"
            android:screenOrientation="portrait"
            android:windowSoftInputMode="adjustPan|stateHidden" />


        <service android:name=".notification.MyFirebaseMessagingService">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT" />
            </intent-filter>
        </service>
        <service android:name=".notification.FirebaseIDService">
            <intent-filter>
                <action android:name="com.google.firebase.INSTANCE_ID_EVENT" />
            </intent-filter>
        </service>
    </application>




</manifest>


activity_main.xml










<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/pageLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"




    tools:context="com.example.saketh.sharedprefdemo.MainActivity">


    <Switch
        android:id="@+id/pageColorSwitch"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="20dp"
        android:text="True Green" />


    <EditText
        android:id="@+id/etName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="74dp"
        android:hint="Eneter your name" />


    <EditText
        android:id="@+id/etProfession"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Enter your professional" />


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">


        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="saveAccountData"
            android:text="save" />


        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:onClick="loadAccountData"
            android:text="load" />
    </LinearLayout>


    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:onClick="openSecondActivity"
        android:text="open second activity" />


    <TextView
        android:id="@+id/txvName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="Person Name"
        android:textColor="#969494"
        android:textSize="25sp"
        android:textStyle="bold" />


    <TextView
        android:id="@+id/txvProfession"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:text="Profession"
        android:textColor="#969494"
        android:textSize="25sp"
        android:textStyle="bold" />




</LinearLayout>








MainActivity.java





package com.example.saketh.sharedprefdemo;


import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Switch;
import android.widget.TextView;


public class MainActivity extends AppCompatActivity {
    private EditText etName,etProfession;
    private TextView txvName,txvProfession;
    private Switch pageColorSwitch;
    private LinearLayout pageLayout;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        etName=(EditText) findViewById(R.id.etName);
        etProfession=(EditText) findViewById(R.id.etProfession);
        txvName=(TextView) findViewById(R.id.txvName);
        txvProfession=(TextView) findViewById(R.id.txvProfession);
        pageColorSwitch=(Switch) findViewById(R.id.pageColorSwitch);
        pageLayout=(LinearLayout) findViewById(R.id.pageLayout);
    }


    public void saveAccountData(View view) {
        SharedPreferences sharedPreferences=getPreferences(Context.MODE_PRIVATE);
        SharedPreferences.Editor editor=sharedPreferences.edit();
        editor.putString("name",etName.getText().toString());
        editor.putString("profession",etProfession.getText().toString());
        editor.putInt("prof_id",287);
        editor.apply();//editor.commit
    }


    public void loadAccountData(View view) {
        SharedPreferences sharedPreferences=getPreferences(Context.MODE_PRIVATE);
        String name=sharedPreferences.getString("name","N/A");
        String profession=sharedPreferences.getString("profession","N/A");
        int profId=sharedPreferences.getInt("prof_id",0);
        txvName.setText(name);
        String profstr=profession+"-"+profId;
        txvProfession.setText(profstr);
    }


    public void openSecondActivity(View view) {
        Intent in=new Intent(getApplicationContext(),SecondActivitys.class);
        startActivity(in);
    }
}




activity_second__activitys.xml










<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="20dp">


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">


        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:onClick="loadAccountData"
            android:text="load" />


        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:onClick="clearAccountData"
            android:text="clear" />


        <Button
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:onClick="removeProfessionKey"
            android:text="remove" />
    </LinearLayout>


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:layout_marginTop="30dp"
        android:text="Person Name"
        android:textColor="#969494"
        android:textSize="24sp"
        android:textStyle="bold" />


    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"


        android:text="Profession"
        android:textColor="#969494"
        android:textSize="20sp"
        android:textStyle="bold" />


</LinearLayout>





SecondActivitys.java





package com.example.saketh.sharedprefdemo;


import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;


public class SecondActivitys extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second_activitys);
    }


    public void loadAccountData(View view) {
    }


    public void clearAccountData(View view) {
    }


    public void removeProfessionKey(View view) {
    }
}