Create application to display log of various lifecycle events of Android Activity. Please make at least three activities

                main.xml                              second.xml                                    setting.xml

main.xml (code)

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

    <LinearLayout

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content">

      <TextView

            android:id="@+id/uname"

            android:layout_width="80dp"

            android:layout_height="wrap_content"

            android:text="@string/Uname">

      </TextView>

      <EditText

            android:id="@+id/utextbox"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content">

      </EditText>

    </LinearLayout>

    <LinearLayout

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content">

      <TextView

            android:id="@+id/pass"

            android:layout_width="80dp"

            android:layout_height="wrap_content"

            android:text="@string/Pass">

      </TextView>

      <EditText

            android:id="@+id/ptextbox"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:password="true">

      </EditText>

    </LinearLayout>

    <LinearLayout

      android:orientation="horizontal"

      android:layout_width="fill_parent"

      android:layout_height="wrap_content"

      android:gravity="center">

      <Button

            android:id="@+id/login"

            android:layout_width="70dp"

            android:layout_height="wrap_content"

            android:text="@string/Login">

      </Button>

      <Button

            android:id="@+id/clear"

            android:layout_width="70dp"

            android:layout_height="wrap_content"

            android:text="@string/Clear">

      </Button>

    </LinearLayout>

   

</LinearLayout>

second.xml (code)

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="vertical"

  android:layout_width="match_parent"

  android:layout_height="match_parent"

  android:id="@+id/mainLayout"

  android:gravity="center">

      <TextView

             android:id="@+id/welcomeNote"

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:text="Welcome !!"

            android:textAppearance="?android:attr/textAppearanceLarge"

            android:gravity="center">

</TextView>

      <Button

            android:id="@+id/setting"

            android:layout_width="90dp"

            android:layout_height="wrap_content"

            android:text="@string/setting"

            android:textSize="20dp"

            android:gravity="center">

</Button>

     

</LinearLayout>

setting.xml (code)

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout

  xmlns:android="http://schemas.android.com/apk/res/android"

  android:orientation="vertical"

  android:layout_width="match_parent"

  android:layout_height="match_parent"

  android:gravity="center">

    <TextView

      android:layout_width="wrap_content"

      android:text="@string/msg"

      android:layout_height="wrap_content"

      android:textAppearance="?android:attr/textAppearanceLarge"

      android:id="@+id/cs"

      android:textSize="30dp"

      android:gravity="center"

      android:textColor="@color/yellow">

    </TextView>    

</LinearLayout>

strings.xml

<?xml version="1.0" encoding="utf-8"?>

<resources>

    <string name="hello">Hello World, Ex1Activity!</string>

    <string name="app_name">Ex1</string>

    <string name="Uname">User Name : </string>

    <string name="Pass">Password : </string>

    <string name="Login">Login</string>

    <string name="Clear">Clear</string>

    <string name="WelcomeNote">Welcome </string>

    <string name="setting">Setting</string>

    <string name="msg">Coming Soon...</string>

</resources>

color.xml (How to add new xml file ?)

<?xml version="1.0" encoding="UTF-8"?>

<resources>

        <color name="yellow">#FFFF00</color>      

</resources>

Ex1Activity.java

package com.exc.first;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class Ex1Activity extends Activity {

    /**

     * Called when the activity is first created.

     */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

       

      //read component from xml file

        Button login = (Button)findViewById(R.id.login);

       

      /**

       * set OnClickListener on button

       * so that code which is in between { } is run on click on login button

       */

        login.setOnClickListener(new OnClickListener() {

                 

                  @Override

                  public void onClick(View v) {

                        // TODO Auto-generated method stub

                       

                        /**

                         * make Intent to call other activity

                         * here Ex1Activity.this to go second.class

                         * on click login button

                         */

                        Intent SecAct = new Intent(Ex1Activity.this,second.class);

                       

                        //start second activity

                        startActivity(SecAct);

                       

                  }

            });

       

       

    }

    @Override

      protected void onStart() {

            // TODO Auto-generated method stub

            super.onStart();

            /**

             * it show massage on LogCat when Activity starts

             */

            Log.i("Login Activity", "Start");

      }

     

      @Override

      protected void onPause() {

            // TODO Auto-generated method stub

            super.onPause();

            /**

             * It show massage on LogCat when Activity OnPause

             */

            Log.i("Login Activity", "Pause");

      }

      @Override

      protected void onRestart() {

            // TODO Auto-generated method stub

            super.onRestart();

            /**

             * it show massage on LogCat when Activity onRestart

             */

            Log.i("Login Activity", "Restart");

      }

      @Override

      protected void onResume() {

            // TODO Auto-generated method stub

            super.onResume();

            /**

             * it show massage on LogCat when Activity OnResume

             */

            Log.i("Login Activity", "Resume");

      }

     

      @Override

      protected void onStop() {

            // TODO Auto-generated method stub

            super.onStop();

            /**

             * it show massage on LogCat when Activity Stop

             */

            Log.i("Login Activity", "Stop");

      }

      @Override

      protected void onDestroy() {

            // TODO Auto-generated method stub

            super.onDestroy();

            /**

             * it show massage on LogCat when Activity Destroys

             */

            Log.i("Login Activity", "Destroy");

      }

}

second.java (How to add new java file ? )

package com.exc.first;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.util.Log;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class second extends Activity{

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            // TODO Auto-generated method stub

            super.onCreate(savedInstanceState);

            setContentView(R.layout.second);

           

            //read button from xml file

            Button setting =(Button)findViewById(R.id.setting);

            setting.setOnClickListener(new OnClickListener() {

                 

                  @Override

                  public void onClick(View v) {

                        // TODO Auto-generated method stub

                       

                        Intent goToSetting = new Intent(second.this,setting.class); //go to third Activity

                        startActivity(goToSetting);                    

                  }

            });

           

      }

      @Override

      protected void onStart() {

            // TODO Auto-generated method stub

            super.onStart();

            /**

             * it show massage on LogCat when Activity starts

             */

            Log.i("Second Activity", "Start");

      }

     

      @Override

      protected void onPause() {

            // TODO Auto-generated method stub

            super.onPause();

            /**

             * it show massage on LogCat when Activity on pause

             */

            Log.i("Second Activity", "Pause");

      }

      @Override

      protected void onRestart() {

            // TODO Auto-generated method stub

            super.onRestart();

            /**

             * it show massage on LogCat when Activity Restart

             */

            Log.i("Second Activity", "Restart");

      }

      @Override

      protected void onResume() {

            // TODO Auto-generated method stub

            super.onResume();

            /**

             * it show massage on LogCat when Activity Resume

             */

            Log.i("Second Activity", "Resume");

      }

     

      @Override

      protected void onStop() {

            // TODO Auto-generated method stub

            super.onStop();

            /**

             * it show massage on LogCat when Activity  stop

             */

            Log.i("Second Activity", "Stop");

      }

      @Override

      protected void onDestroy() {

            // TODO Auto-generated method stub

            super.onDestroy();

            /**

             * it show massage on LogCat when Activity Destroy

             */

            Log.i("Second Activity", "Destroy");

      }

}

setting.java

package com.exc.first;

import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

public class setting extends Activity {

      @Override

      protected void onCreate(Bundle savedInstanceState) {

            // TODO Auto-generated method stub

            super.onCreate(savedInstanceState);

            setContentView(R.layout.setting);

           

           

      }

      @Override

      protected void onStart() {

            // TODO Auto-generated method stub

            super.onStart();

            /**

             * it show massage on LogCat when Activity starts

             */

            Log.i("Third Activity", "Start");

      }

     

      @Override

      protected void onPause() {

            // TODO Auto-generated method stub

            super.onPause();

            /**

             * it show massage on LogCat when Activity Pause

             */

            Log.i("Third Activity", "Pause");

      }

      @Override

      protected void onRestart() {

            // TODO Auto-generated method stub

            super.onRestart();

            /**

             * it show massage on LogCat when Activity Restarts

             */

            Log.i("Third Activity", "Restart");

      }

      @Override

      protected void onResume() {

            // TODO Auto-generated method stub

            super.onResume();

            /**

             * it show massage on LogCat when Activity Resume

             */

            Log.i("Third Activity", "Resume");

      }

     

      @Override

      protected void onStop() {

            // TODO Auto-generated method stub

            super.onStop();

            /**

             * it show massage on LogCat when Activity stop

             */

            Log.i("Third Activity", "Stop");

      }

      @Override

      protected void onDestroy() {

            // TODO Auto-generated method stub

            super.onDestroy();

            /**

             * it show massage on LogCat when Activity Destroy

             */

            Log.i("Third Activity", "Destroy");

      }

}

and don't forget to enter entry of your new java file into manifest file

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

      package="com.exc.first"

      android:versionCode="1"

      android:versionName="1.0">

    <uses-sdk android:minSdkVersion="10" />

    <application android:icon="@drawable/icon" android:label="@string/app_name">

        <activity android:name=".Ex1Activity"

                  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=".second"

                  android:label="@string/app_name">

           

        </activity>

        <activity android:name=".setting"

                  android:label="@string/app_name">

           

        </activity>

    </application>

</manifest>

Output

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• How to add LogCat ?