Share_prefrence_guj
//aa share preference ma simple login and logout che
//aama ek vkhart je name thi login kreyu hse to pche ae page nai khule direct second page khulse
step 1:xmal1
step 2:java1
step 3:xml2
step 4:java2
Step 1:xml1
<?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">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText"
android:layout_below="@+id/textView2"
android:layout_marginTop="67dp"
android:hint="Name"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText2"
android:layout_below="@+id/editText"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:hint="Pass" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText3"
android:layout_below="@+id/editText2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:hint="Email" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Save"
android:id="@+id/button"
android:layout_below="@+id/editText3"
android:layout_centerHorizontal="true"
android:layout_marginTop="50dp" />
</LinearLayout>
Step:java1
public class MainActivity extends AppCompatActivity {
EditText ed1,ed2,ed3;
Button b1;
public static final String MyPREFERENCES = "MyPrefs" ;
public static final String Name = "nameKey";
public static final String Phone = "phoneKey";
public static final String Email = "emailKey";
SharedPreferences sharedPreferences;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.signin);
ed1=findViewById(R.id.editText);
ed2=findViewById(R.id.editText2);
ed3=findViewById(R.id.editText3);
sharedPreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
if(sharedPreferences.contains(Name)) {
Intent intent = new Intent(MainActivity.this, Main2Activity.class);
startActivity(intent);
}
b1=findViewById(R.id.button);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String n=ed1.getText().toString();
String ph=ed2.getText().toString();
String e=ed3.getText().toString();
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(Name, n);
editor.putString(Phone, ph);
editor.putString(Email, e);
editor.commit();
Toast.makeText(MainActivity.this,"Thanks",Toast.LENGTH_LONG).show();
}
});
}
}
Step 3:xml2
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/logout"
android:text="LOGOUT"/>
Step 4:java2
package demoproject.aalap.com.sql;
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.Button;
public class Main2Activity extends AppCompatActivity {
Button logout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
logout=findViewById(R.id.logout);
logout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
SharedPreferences preferences =getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.clear();
editor.commit();
finish();
}
});
}
}
//aama ek vkhart je name thi login kreyu hse to pche ae page nai khule direct second page khulse
step 1:xmal1
step 2:java1
step 3:xml2
step 4:java2
Step 1:xml1
<?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">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText"
android:layout_below="@+id/textView2"
android:layout_marginTop="67dp"
android:hint="Name"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText2"
android:layout_below="@+id/editText"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:hint="Pass" />
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/editText3"
android:layout_below="@+id/editText2"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:hint="Email" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Save"
android:id="@+id/button"
android:layout_below="@+id/editText3"
android:layout_centerHorizontal="true"
android:layout_marginTop="50dp" />
</LinearLayout>
Step:java1
public class MainActivity extends AppCompatActivity {
EditText ed1,ed2,ed3;
Button b1;
public static final String MyPREFERENCES = "MyPrefs" ;
public static final String Name = "nameKey";
public static final String Phone = "phoneKey";
public static final String Email = "emailKey";
SharedPreferences sharedPreferences;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.signin);
ed1=findViewById(R.id.editText);
ed2=findViewById(R.id.editText2);
ed3=findViewById(R.id.editText3);
sharedPreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
if(sharedPreferences.contains(Name)) {
Intent intent = new Intent(MainActivity.this, Main2Activity.class);
startActivity(intent);
}
b1=findViewById(R.id.button);
b1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
String n=ed1.getText().toString();
String ph=ed2.getText().toString();
String e=ed3.getText().toString();
SharedPreferences.Editor editor = sharedPreferences.edit();
editor.putString(Name, n);
editor.putString(Phone, ph);
editor.putString(Email, e);
editor.commit();
Toast.makeText(MainActivity.this,"Thanks",Toast.LENGTH_LONG).show();
}
});
}
}
Step 3:xml2
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/logout"
android:text="LOGOUT"/>
Step 4:java2
package demoproject.aalap.com.sql;
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.Button;
public class Main2Activity extends AppCompatActivity {
Button logout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main2);
logout=findViewById(R.id.logout);
logout.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
SharedPreferences preferences =getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
SharedPreferences.Editor editor = preferences.edit();
editor.clear();
editor.commit();
finish();
}
});
}
}
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