Android Tutorial 91

There are two types of Intent navigation between activities 1. Explicit Intent Navigation 2. Implicit Intent Navigation Following is an example of explicit Intent Navigation step1 : create new android application projects step2 : create new activity<SecondActivity.java> step3 : create new xml file<second_page.xml> under layout folder step4 : register the activity in manifest.xml file 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" >     <Button         android:id="@+id/button1"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:layout_centerHorizontal="true"         android:layout_centerVertical="true"    

Here is an example for multiple buttons, even we can handle multiple buttons with single method(onClick(View)) or with unanimous object of OnClickListener interface, activity_main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/LinearLayout2"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="horizontal"     tools:context=".MainActivity" >     <Button         android:id="@+id/button_save"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/button_save" />     <Button         android:id="@+id/button_cancel"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text=

Here one approach for button click event handling, in this approach we need to write individual methods for each and every button, it is complicated not recommended to use. activity_main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/LinearLayout1"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     tools:context=".MainActivity" >     <Button         android:id="@+id/click_button"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/button"         android:onClick="button_clicked" /> </LinearLayout> MainActivity.java import android.app.Activity; import android.os.Bundle; import android.view.View; import android.widget.

here is one more approach to handle button click event using unanimous class as follows activity_main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/LinearLayout1"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     tools:context=".MainActivity" >     <Button         android:id="@+id/click_button"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/button" /> </LinearLayout> MainActivity.java import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity { @Override

Create new project, go to activity_main.xml drag and drop  a button or add the following code. activity_main.xml <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/LinearLayout1"     android:layout_width="match_parent"     android:layout_height="match_parent"     android:orientation="vertical"     tools:context=".MainActivity" >     <Button         android:id="@+id/click_button"         android:layout_width="wrap_content"         android:layout_height="wrap_content"         android:text="@string/button" /> </LinearLayout> MainActivity.java import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast; public class MainActivity extends Activity impleme