Data sharing between Activities using Intent, When we create object for intent only we need to add some data to intent object and we need to read the data from targeted Activity, Following Example Explains How data sharing Takes place between Activities.
Step 1: Create New Application
Step 2: Write the following code in strings.xml
Strings.xml
</resources>
Step 3: Write the following code in activity_main.xml
activity_main.xml
Step 4: Write the following code in MainActivity.java
MainActivity.java
Step 4: Create new Activity (SecondActivity)
Step 5: Register SecondActivity in manifest file, add the following code in manifest.xml
AndroidManifest.xml
Step 6: Write the following code in activity_second.xml
activity_second.xml
Step 7: Write the following code in SecondActivity.java
SecondActivity.java
Step 1: Create New Application
Step 2: Write the following code in strings.xml
Strings.xml
<?xml version="1.0"encoding="utf-8"?>
<resources>
<string name="app_name">Intent Sharing</string>
<string name="main_button_cancel">Cancel</string>
<string name="title_activity_second">Second Activity</string>
<string name="main_button_submit">Submit</string>
<string name="main_button_submit_hint">Please Enter User Name</string>
<string name="main_button_cancel_hint">Please Enter Password</string>
Step 3: Write the following code in activity_main.xml
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity" >
<EditText
android:id="@+id/main_editText_usename"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:hint="@string/main_button_submit_hint" />
<EditText
android:id="@+id/main_editText_password"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/main_editText_usename"
android:layout_below="@+id/main_editText_usename"
android:layout_marginTop="20dp"
android:hint="@string/main_button_cancel_hint"
android:inputType="textPassword" />
<Button
android:id="@+id/main_button_submit"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/main_editText_password"
android:layout_below="@+id/main_editText_password"
android:layout_marginTop="23dp"
android:text="@string/main_button_submit" />
<Button
android:id="@+id/main_button_cancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/main_button_submit"
android:layout_alignBottom="@+id/main_button_submit"
android:layout_centerHorizontal="true"
android:text="@string/main_button_cancel" />
</RelativeLayout>
Step 4: Write the following code in MainActivity.java
MainActivity.java
importandroid.app.Activity;
importandroid.content.Intent;
import android.os.Bundle;
import android.view.View;
importandroid.view.View.OnClickListener;
importandroid.widget.Button;
importandroid.widget.EditText;
public class MainActivity extends Activity {
EditText edit_username, edit_password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button button_submit = (Button) findViewById(R.id.main_button_submit);
Button button_cancel = (Button) findViewById(R.id.main_button_cancel);
edit_username = (EditText) findViewById(R.id.main_editText_usename);
edit_password = (EditText) findViewById(R.id.main_editText_password);
button_submit.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String username = edit_username.getText().toString();
String password = edit_password.getText().toString();
Intent intent = new Intent(getApplicationContext(),
SecondActivity.class);
intent.putExtra("username", username);
intent.putExtra("password", password);
startActivity(intent);
finish();
}
});
button_cancel.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
edit_username.setText("");
edit_password.setText("");
}
});
}
}
Step 4: Create new Activity (SecondActivity)
Step 5: Register SecondActivity in manifest file, add the following code in manifest.xml
AndroidManifest.xml
<?xml version="1.0"encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.swamy.intentsharing"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="18" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.swamy.intentsharing.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity
android:name="com.swamy.intentsharing.SecondActivity"
android:label="@string/title_activity_second" >
</activity>
</application>
</manifest>
Step 6: Write the following code in activity_second.xml
activity_second.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SecondActivity" >
<TextView
android:id="@+id/second_textView_disp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
Step 7: Write the following code in SecondActivity.java
SecondActivity.java
importandroid.app.Activity;
importandroid.content.Intent;
import android.os.Bundle;
importandroid.widget.TextView;
public class SecondActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
TextView editText_disp = (TextView) findViewById(R.id.second_textView_disp);
Intent intent = getIntent();
String username = intent.getStringExtra("username");
String password = intent.getStringExtra("password");
editText_disp.append("Username : " + username + "\n");
editText_disp.append("Password : " + password);
}
}
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