138 Java Android Program to Send Data From Service to Activity in Android
Posted by Superadmin on December 06 2015 13:23:03

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Here is source code of the Program to Send Data From Service to Activity in Android. The program is successfully compiled and run on a Windows system using Eclipse Ide. The program output is also shown below.
The following code demonstrates to send an object from one activity to another , we can’t do that directly an approach to solve this problem has been demonstrated by using Parcable class in android to send object data from one activity to another.
Send data by

intent.putExtra("value", object);
and similarly retreive by –

Intent i = getIntent();
Myobject myObject = (Myobject) i.getParcelableExtra("value");

Main Activity

package com.example.javaandroidprogramtosenddatafromoneactivitytoanotherinandroid;

import android.os.Bundle;
import android.os.Parcel;
import android.os.Parcelable;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button mybuttton = (Button) findViewById(R.id.button1);
final EditText inp = (EditText) findViewById(R.id.inp);

mybuttton.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
int num = Integer.parseInt(inp.getText().toString());
Intent intent = new Intent(getApplicationContext(),
Second.class);
Myobject objMyobject = new Myobject();
objMyobject.mData = num;
intent.putExtra("value", objMyobject);
startActivity(intent);

}
});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

Myobject

package com.example.javaandroidprogramtosenddatafromoneactivitytoanotherinandroid;

import android.os.Parcel;
import android.os.Parcelable;

public class Myobject implements Parcelable {
int mData;

public int describeContents() {
return 0;
}

// write your object's data to the passed-in Parcel
public void writeToParcel(Parcel out, int flags) {
out.writeInt(mData);
}

public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
public Myobject createFromParcel(Parcel in) {
return new Myobject(in);
}

public Myobject[] newArray(int size) {
return new Myobject[size];
}
};

Myobject(Parcel in) {
mData = in.readInt();
}

Myobject() {
}
}

Second

package com.example.javaandroidprogramtosenddatafromoneactivitytoanotherinandroid;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.widget.TextView;

public class Second extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
TextView out = (TextView)findViewById(R.id.out);
Intent i = getIntent();
Myobject myObject = (Myobject) i.getParcelableExtra("value");
out.setText("Received : " + "\n"+myObject.mData);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.second, menu);
return true;
}

}