Create Parent Activity and pass its information to Child Activity using Intents.
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1 Create Parent Activity and pass its information to Child Activity using Intents. /* MainActivity.java */ package com.example.first; import android.os.bundle; import android.app.activity; import android.view.menu; import android.view.view; import android.content.intent; import android.widget.*; public class MainActivity extends Activity { public static final String EXTRA_MESSAGE="com.example.First.MESSAGE"; public static final String EXTRA_MESSAGE1="com.example.First.MESSAGE1"; protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); 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); public void sendmessage(view view) { Intent intent=new Intent(this,DisplayMessageActivity.class); EditText t=(edittext)findviewbyid(r.id.message); String message=t.gettext().tostring(); EditText t1=(edittext)findviewbyid(r.id.edittext01); String message1=t1.gettext().tostring(); intent.putextra(extra_message,message); intent.putextra(extra_message1,message1); startactivity(intent); public void cleartext(view view) { EditText t=(edittext)findviewbyid(r.id.message); t.settext(""); EditText t1=(edittext)findviewbyid(r.id.edittext01); t1.settext("");
2 /*DisplayMessageActivity.java */ package com.example.first; import android.os.bundle; import android.app.activity; import android.view.menu; import android.view.menuitem; import android.support.v4.app.navutils; import android.annotation.suppresslint; import android.annotation.targetapi; import android.os.build; import android.content.intent; import android.widget.textview; public class DisplayMessageActivity extends Activity protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); Intent intent=getintent(); String username=intent.getstringextra(mainactivity.extra_message); String password=intent.getstringextra(mainactivity.extra_message1); String message=""; if(username.equals("te") && password.equals("batcha")) message="login Successful!"; else message="login Unsuccessful!"; TextView t1=new TextView(this); t1.settextsize(40); t1.settext(message); setcontentview(t1); Show the Up button in the action bar. setupactionbar(); /** * Set up the {@link android.app.actionbar, if the API is available. private void setupactionbar() { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { Override public boolean oncreateoptionsmenu(menu menu) { Inflate the menu; this adds items to the action bar if it is present.
3 getmenuinflater().inflate(r.menu.display_message, Override public boolean onoptionsitemselected(menuitem item) { switch (item.getitemid()) { case android.r.id.home: This ID represents the Home or Up button. In the case of this activity, the Up button is shown. Use NavUtils to allow users to navigate up one level in the application structure. For more details, see the Navigation pattern on Android Design: NavUtils.navigateUpFromSameTask(this); return super.onoptionsitemselected(item); /*activity_main.xml */ <LinearLayout xmlns:android=" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <EditText android:id="@+id/edittext01" android:layout_width="198dp" android:ems="10" android:hint="@string/to" > <requestfocus /> </EditText> <EditText android:id="@+id/message" android:layout_width="198dp" android:hint="@string/message" /> <Button android:id="@+id/send"
4 android:layout_width="wrap_content" android:onclick="sendmessage" /> <Button android:layout_width="wrap_content" android:onclick="cleartext" /></LinearLayout> /* acitivity_display_main.xml */ <RelativeLayout xmlns:android=" xmlns:tools=" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".displaymessageactivity" > <TextView android:layout_width="wrap_content" /> </RelativeLayout> /* Strings.xml */ <?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">first</string> <string name="action_settings">settings</string> <string name="hello_world">hello world, Hello Android</string> <string name="subject">subject</string> <string name="to">to</string> <string name="message">message</string> <string name="reset">clear</string> <string name="send">send</string> <string name="title_activity_display_message">my Message</string> </resources>
5 ********************************OUTPUT************************ Sonali K.
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