AndroidQe: 2012

Friday 14 September 2012

TEMPERATURE COVERTER

Objective:

string.xml:

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

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

<string name="myClickHandler">myClickHandler</string>

<string name="show">Result is:</string>

<string name="celsius">to celsius</string>

<string name="fahrenheit">to fahrenheit</string>

<string name="calc">calculate</string>

</resources>

main.xml:

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

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

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical"

android:background="@color/myColor>

<EditText

android:layout_height="wrap_content"

android:id="@+id/editText1"

android:layout_width="fill_parent"

android:inputType="numberDecimal|numberSigned"></EditText>

<TextView

android:id="@+id/Tview1"

android:layout_height="wrap_content"

android:layout_width="fill_parent"

android:text="@string/show"

android:textSize="40dp"

android:textColor="@color/red"

android:inputType="numberDecimal|numberSigned"></TextView>

<RadioGroup

android:layout_height="wrap_content"

android:id="@+id/radioGroup1"

android:layout_width="match_parent">

<RadioButton

android:layout_width="wrap_content"

android:id="@+id/radio0"

android:layout_height="wrap_content"

android:text="@string/celsius"

android:textSize="25dp"

android:checked="true"></RadioButton>

<RadioButton

android:layout_width="wrap_content"

android:id="@+id/radio1"

android:layout_height="wrap_content"

android:text="@string/fahrenheit"

android:textSize="25dp"></RadioButton>

</RadioGroup>

<Button

android:id="@+id/button1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:text="@string/calc"></Button>

</LinearLayout>

TempConvertActivity.java

package com.android.temp;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.EditText;

import android.widget.RadioButton;

import android.widget.TextView;

import android.widget.Toast;

public class TempConvertActivity extends Activity implements View.OnClickListener{

/** Called when the activity is first created. */

EditText etext;

TextView Tview1;

RadioButton cbutton,fbutton;

Button btn;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

etext = (EditText) findViewById(R.id.editText1);

Tview1=(TextView)findViewById(R.id.Tview1);

cbutton=(RadioButton)findViewById(R.id.radio0);

fbutton=(RadioButton)findViewById(R.id.radio1);

btn=(Button)findViewById(R.id.button1);

btn.setOnClickListener(this);

}

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

if (etext.getText().length() == 0) {

Toast.makeText(this, "Please enter a valid number" , Toast.LENGTH_LONG).show();

}

else

{

float inputValue = Float.parseFloat(etext.getText().toString());

if(cbutton.isChecked())

{

float outputValue=(inputValue - 32)*5/9;

String text=String.valueOf(outputValue);

Tview1.setText(text);

}

else

{

float outputValue=(inputValue*9)/5+ 32;

String text=String.valueOf(outputValue);

Tview1.setText(text);

}

Wednesday 12 September 2012

XML- BASE PROGRAM

OBJECTIVE

Main.xml

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

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

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<TextView

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

android:textSize="30dp"

android:textColor="@color/Blue"/>

</LinearLayout>

String.xml

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

<string name="hello">Wellcome to Android first-Example</string>

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

</resources>

HelloxmlbaseActivity.java

package com.android.hello;

import android.app.Activity;

import android.os.Bundle;

public class HelloxmlbaseActivity extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

}

AndroidManifest.java

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

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

package="com.android.hello"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk android:minSdkVersion="8" />

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:name=".HelloxmlbaseActivity"

android:label="@string/app_name" >

<intent-filter>

</intent-filter>

</activity>

</application>

</manifest>

JAVA-BASE PROGRAM

JavabaseActivity.java

package com.android.Hello1;

import android.app.Activity;

import android.graphics.Color;

import android.os.Bundle;

import android.widget.TextView;

public class JavabaseActivity extends Activity {

/** Called when the activity is first created. */

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

//setContentView(R.layout.main);

TextView tv=new TextView(this);

tv.setText("Welcome to Android First-Example");

tv.setTextSize(30);

tv.setTextColor(Color.BLUE);

setContentView(tv);

}

AndroidManifest.xml

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

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

package="com.android.Hello1"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk android:minSdkVersion="8" />

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:label="@string/app_name"

android:name="JavabaseActivity" >

<intent-filter >

</intent-filter>

</activity>

</application>

</manifest>

HYBRID-BASE EXAMPLE

String.xml

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

<string name="app_name">Hello2</string>

<string name="hello">Welcome to Android First-Example</string>

<color name="Blue">#FFFFFF</color>

</resources>

Main.xml

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

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

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<TextView

android:id="@+id/TextV1"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:text="@string/hello"

android:textSize="30dp"

android:textColor="@color/Blue"/>

</LinearLayout>

Hello2Activity.java

package com.android.Hello2;

import android.app.Activity;

import android.os.Bundle;

import android.widget.TextView;

public class Hello2Activity extends Activity {

/** Called when the activity is first created. */

TextView tv;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

tv=(TextView)findViewById(R.id.TextV1);

tv.setText("This is modified Text");

tv.setTextSize(33);

}

AndroidManifest.xml

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

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

package="com.android.Hello2"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk android:minSdkVersion="8" />

<application

android:icon="@drawable/ic_launcher"

android:label="@string/app_name" >

<activity

android:label="@string/app_name"

android:name=".Hello2Activity" >

<intent-filter >

</intent-filter>

</activity>

</application>

</manifest>

Map

AndroidManifest.xml

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

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

package="com.adaptive.map" android:versionCode="1" android:versionName="1.0">

<uses-sdk android:minSdkVersion="14" />

<uses-permission android:name="android.permission.INTERNET"></uses-permission>

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"></uses-permission>

<intent-filter>

</intent-filter>

</activity>

<uses-library android:required="true" android:name="com.google.android.maps" />

</application>

</manifest>

map_activity.xml

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

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

android:id="@+id/mainlayout" android:orientation="vertical"

android:layout_width="fill_parent" android:layout_height="fill_parent">

<com.google.android.maps.MapView

android:id="@+id/mapview" android:layout_width="fill_parent"

android:layout_height="fill_parent" android:clickable="true"

android:apiKey="0sZ2uYOryArwt-zf6TeXndgeZH1VMhRxixDGXDg" />

</RelativeLayout>

MapAppActivity.java

package com.adaptive.map;

import android.content.Context;

import android.location.Criteria;

import android.location.Location;

import android.location.LocationListener;

import android.location.LocationManager;

import android.os.Bundle;

import com.google.android.maps.GeoPoint;

import com.google.android.maps.MapActivity;

import com.google.android.maps.MapController;

import com.google.android.maps.MapView;

public class MapAppActivity extends MapActivity {

private MapController mapController;

private MapView mapView;

private LocationManager locationManager;

@SuppressWarnings("deprecation")

public void onCreate(Bundle bundle) {

super.onCreate(bundle);

setContentView(R.layout.map_activity); // bind the layout to the activity

// create a map view

// RelativeLayout linearLayout = (RelativeLayout)

// findViewById(R.layout.map_activity);

// Create MapView

mapView = (MapView) findViewById(R.id.mapview);

mapView.setBuiltInZoomControls(true);

mapView.setStreetView(true);

// Get MapView Controller

mapController = mapView.getController();

mapController.setZoom(14); // Zoom 1 is world view

// Get LocationManager

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

// Get Location Provider

String prov = locationManager.getBestProvider(new Criteria(), true);

// Connect Location Provider with Location Listener

locationManager.requestLocationUpdates(prov, 0, 0,

new GeoUpdateHandler());

}

@Override

protected boolean isRouteDisplayed() {

return false;

}

public class GeoUpdateHandler implements LocationListener {

@Override

public void onLocationChanged(Location location) {

int lat = (int) (location.getLatitude() * 1E6);

int lng = (int) (location.getLongitude() * 1E6);

GeoPoint point = new GeoPoint(lat, lng);

mapController.animateTo(point); // New Map with passed location

// parameter is drawn

}

@Override

public void onProviderDisabled(String provider) {

}

@Override

public void onProviderEnabled(String provider) {

}

@Override

public void onStatusChanged(String provider, int status, Bundle extras) {

}

// Script to capture Longitude and Latitude

// javascript:void(prompt('',gApplication.getMap().getCenter()));

}

Friday 7 September 2012

ListDynamicActivity.java

package com.android.ListDynamic;

import java.util.ArrayList;

import android.app.Activity;

import android.app.ListActivity;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

public class ListDynamicActivity extends ListActivity {

// LIST OF ARRAY STRINGS WHICH WILL SERVE AS LIST ITEMS

ArrayList<String> listItems = new ArrayList<String>();

// DEFINING STRING ADAPTER WHICH WILL HANDLE DATA OF LISTVIEW

ArrayAdapter<String> adapter;

// RECORDING HOW MUCH TIMES BUTTON WAS CLICKED

int clickCounter = 0;

@Override

public void onCreate(Bundle icicle) {

super.onCreate(icicle);

setContentView(R.layout.main);

adapter = new ArrayAdapter<String>(this,

android.R.layout.simple_list_item_1, listItems);

setListAdapter(adapter);

}

// METHOD WHICH WILL HANDLE DYNAMIC INSERTION

public void addItems(View v) {

listItems.add("Clicked : " + clickCounter++);

adapter.notifyDataSetChanged();

}

Main.xml

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

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

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<Button

android:id="@+id/addBtn"

android:layout_width="fill_parent"

android:layout_height="wrap_content"

android:onClick="addItems"

android:text="Add New Item" />

<ListView

android:id="@android:id/list"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:drawSelectorOnTop="false" />

</LinearLayout>

Output