Get all information in a android phone

                         Get all information in a android phone

*#*#4636#*#*

XML Parsing in Android

                       XML Parsing in Android

Xml stands for extensible markup language.There are  types of parsing methods in android

1 SaxPullparser

2 DOM parser

Here we are using SaxPullparser ,because it is more efficient that any other parser in android.

Following is a example for XML parsing using  SaxPullparser 

CustomXML.java

package fortyonepost.com.cx;

import java.io.IOException;

import org.xmlpull.v1.XmlPullParser;

import org.xmlpull.v1.XmlPullParserException;

import teste.com.teste.R;

import android.app.Activity;

import android.content.res.Resources;

import android.content.res.XmlResourceParser;

import android.os.Bundle;

import android.util.Log;

import android.widget.Toast;

public class CustomXML extends Activity 

{

//this object will store a reference to the Activity's resources

private Resources resources;

//this integer will store the XMLResourceParser events

private int event;

//a boolean that will tell if it's the tag we are looking for

private boolean isCorrectTag = false;

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

    @Override

    public void onCreate(Bundle savedInstanceState) 

    {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        

        //get the application's resources

        resources = this.getResources();

        

        try 

        {

         GetAttributes("tutorial");

         GetAttributes("level1");

} 

        catch (XmlPullParserException e) 

{

         //Display a toast message.

Toast.makeText(this, "Could not retrieve the current parser event", Toast.LENGTH_SHORT);

} 

        catch (IOException e) 

{

         //Display a toast message.

Toast.makeText(this, "Could not read XML file", Toast.LENGTH_SHORT);

}

    }

    

    public void GetAttributes(String tagName) throws XmlPullParserException, IOException

{

     //get a XmlResourceParser object to read contents of the 'custom.xml' file

XmlResourceParser parser = resources.getXml(R.xml.custom);

//get the initial parser event

event = parser.getEventType();

//while haven't reached the end of the XML file 

    while (event != XmlPullParser.END_DOCUMENT) 

    {

     //get the type of the event

     event = parser.getEventType();

    

     //if parser finds a new tag and its name equals 'tagName'

            if (event == XmlPullParser.START_TAG && parser.getName().contentEquals(tagName)) 

            {

             //print the attribute values at LogCat

             //print the ID

             Log.i("CustomXML", "id:" + parser.getIdAttribute());

            

             //print the difficulty

             float difficulty = parser.getAttributeFloatValue(null, "difficulty", 0.0f);

             Log.i("CustomXML", "difficulty:" + Float.toString(difficulty));

            

             //print the number of enemies

             int enemies = parser.getAttributeIntValue(null, "enemies", 0);

             Log.i("CustomXML", "enemies:" + Integer.toString(enemies));

             //Found the tag, set the boolean to true

             isCorrectTag = true;

            } 

            else if (event == XmlPullParser.TEXT && isCorrectTag)

            {

             //Print the tag's content

             Log.i("CustomXML", parser.getText());

             //set isCorrectTag to false;

             isCorrectTag = false;

             //break the loop, we already found what we were looking for

             break;

            }

            //go to the next tag

            parser.next();

    }

    //Release resources associated with the parser

    parser.close();

}

}

place a xml file in res-xm1-custom.xml

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

<resources>

<tutorial id="level" difficulty="1.5" enemies="3">The tutorial.</tutorial>

<level1 id="level" difficulty="2.6" enemies="10">The first level.</level1>

</resources>

check the logcat in your emulator for output  

 

http://androiddeveloperszone.blogspot.in/

Android Custom Spinner with Intent

          Android Custom Spinner with Intent  

 Following is a example program for custom spinner in android and user can select a particular item and leads to specific activity.

NewspinnerActivity.java

package adsdfd.ghgh;

 

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.ArrayAdapter;

import android.widget.ImageView;

import android.widget.Spinner;

import android.widget.TextView;

 

public class NewspinnerActivity extends Activity {

    String[] strings = {"CoderzHeaven","Google",

            "Microsoft", "Apple", "Yahoo","Samsung"};

 

    String[] subs = {"Heaven of all working codes ","Google sub",

            "Microsoft sub", "Apple sub", "Yahoo sub","Samsung sub"};

 

 

    int arr_images[] = { R.drawable.icon,

                         R.drawable.icon, R.drawable.icon,

                         R.drawable.icon, R.drawable.icon, R.drawable.icon};

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

 

        Spinner mySpinner = (Spinner)findViewById(R.id.spinner);

        mySpinner.setAdapter(new MyAdapter(NewspinnerActivity.this, R.layout.row, strings));

    }

 

    public class MyAdapter extends ArrayAdapter<String>{

 

        public MyAdapter(Context context, int textViewResourceId,   String[] objects) {

            super(context, textViewResourceId, objects);

        }

 

        @Override

        public View getDropDownView(int position, View convertView,ViewGroup parent) {

            return getCustomView(position, convertView, parent);

            

            

           

        }

 

        @Override

        public View getView(int position, View convertView, ViewGroup parent) {

          System.out.println("abcdddddddddddd"+position);

          

          

          Intent i=new Intent(getApplicationContext(),abcd.class);

          startActivity(i);

          

          

          

            return getCustomView(position, convertView, parent);

            

        }

 

        public View getCustomView(int position, View convertView, ViewGroup parent) {

 

            LayoutInflater inflater=getLayoutInflater();

            View row=inflater.inflate(R.layout.row, parent, false);

            TextView label=(TextView)row.findViewById(R.id.company);

            label.setText(strings[position]);

 

            TextView sub=(TextView)row.findViewById(R.id.sub);

            sub.setText(subs[position]);

 

            ImageView icon=(ImageView)row.findViewById(R.id.image);

            icon.setImageResource(arr_images[position]);

 

            return row;

            }

        }

   }

then following are the xml  file and in main.xml

<?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"

      android:background="@drawable/icon"

    >

<TextView

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="@string/hello"

    />

<Spinner

    android:id="@+id/spinner"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:drawSelectorOnTop="true"

    android:prompt="@string/prompt"

    />

</LinearLayout>

then the row.xml

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

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

 android:layout_width="fill_parent"

 android:layout_height="wrap_content"

 android:orientation="vertical"

 android:padding="3dip"

>

    <ImageView

         android:id="@+id/image"

         android:layout_width="wrap_content"

         android:layout_height="wrap_content"

         android:src="@drawable/icon"/>

    <TextView

         android:layout_toRightOf="@+id/image"

         android:padding="3dip"

         android:layout_marginTop="2dip"

         android:textColor="@drawable/red"

         android:textStyle="bold"

         android:id="@+id/company"

         android:text="CoderzHeaven"

         android:layout_marginLeft="5dip"

         android:layout_width="wrap_content"

         android:layout_height="wrap_content"/>

     <TextView

         android:layout_toRightOf="@+id/image"

         android:padding="2dip"

         android:textColor="@drawable/darkgrey"

         android:layout_marginLeft="5dip"

         android:id="@+id/sub"

         android:layout_below="@+id/company"

         android:text="Heaven of all working codes"

         android:layout_width="wrap_content"

         android:layout_height="wrap_content"/>

</RelativeLayout>

abcd.class

package adsdfd.ghgh;

import android.app.Activity;

import android.os.Bundle;

public class abcd extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.abcd);

}

}

http://androiddeveloperszone.blogspot.in/

Download Android Codes From SkyBlueAndroid

use hex color codes instead of color names in Java

use hex color codes instead of color names in Java






  paint.setColor(Color.parseColor("#9d4807"));


click here

How to start a Activity from Service in Android

 
                     How to start a Activity from Service in Android

 within the service


                        Intent dialogIntent = new Intent(getBaseContext(), tone1.class);
  dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
  getApplication().startActivity(dialogIntent);

marquee Example in Android

              marquee Example in Android
















<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/MarqueeText"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:ellipsize="marquee"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:freezesText="true"
        android:marqueeRepeatLimit="marquee_forever"
       android:textSize="30dp"
        android:scrollHorizontally="true"
        android:singleLine="true"
        android:text="hai friends Distance is aaaaaaaaaaaa aaaaaaaaa" >
    </TextView>

</LinearLayout>

Set an onClickListner method to MapActivity

  Set an  onClickListner method to MapActivity

1) First do the setContentView, after that the Button is findable. The system could not find your Button now, so that's why it is a null. Your MapView map also would be a null in your code. 2) If you define an object within {} it is only available within that {} You probably going to need the Object "but" later, so make it a private variable of the class. 3) Classname should start with a capital. 4) Visit anddev.org or some site like that for coding problems, xda seems to be more focused on system/firmware issues, not application code. So, this should work: public class MainActivity extends MapActivity { final Button but; final MapView map; @Override public boolean isRouteDisplayed() { return false; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); but = (Button) findViewById(R.id.gpsButton); but.setOnClickListener(new View.OnClickListener() { public void onClick(View v){ } }); map = (MapView) findViewById(R.id.myMap); } }

remove title bar in Android

How to remove title bar in Android




<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="jithu.c"
      android:versionCode="1"
      android:versionName="1.0">
    <uses-sdk android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>

    <application android:icon="@drawable/icon" android:label="@string/app_name"
     android:theme="@android:style/Theme.NoTitleBar">
   
   
        <activity android:name=".PlacefinderdemoActivity"
     
                  android:label="@string/app_name">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <uses-library android:required="true" android:name="com.google.android.maps"></uses-library>
        <activity android:name=".alm.alarm"></activity>
    </application>
</manifest>

Asynchronous tasks in Android applications

Asynchronous tasks in Android applications

When we are writing an application and we want to perform a heavy background operation we have to start a new thread that will handle this operation and then publish the results on the UI thread for further processing. Having to manipulate threads can very often lead to complex pieces of code and it is pretty easy to mess things up really fast!

Android provides a class that enables proper and easy use of the UI thread and makes our life really easy. AsychTask is a class that allows to perform background operations and publish results on the UI thread without having to manipulate threads and/or handlers. An asynchronous task is defined by a computation that runs on a background thread and whose result is published on the UI thread. An asynchronous task is defined by 3 generic types, called Params, Progress and Result, and 4 steps (functions), calledonPreExecute, doInBackground, onProgressUpdate and onPostExecute.

AsyncTask must be subclassed to be used and the subclass must override at least one method (doInBackground), and most often will override a second one ( onPostExecute). Now let's take a look at the three types used by an asynchronous task:

1. Params: The type of the parameters sent to the task upon execution.
2. Progress: The type of the progress units published during the background computation.
3. Result: The type of the result of the background computation.

If a type is not used by an asynchronous task, then this type is marked as unused using the type Void. Now let's take a look at the 4 steps a task goes through when it is executed:

1. onPreExecute: Invoked on the UI thread immediately after the task is executed. This step is normally used to setup the task, for instance by showing a progress bar in the user interface.
2. doInBackground: Invoked on a background thread after onPreExecute finishes executing. This function is used to perform background operations/computations that can take a long time. In this function we can use publishProgress to publish one or more units of progress. These values are published on the UI thread, in theonProgressUpdate step.
3. onProgressUpdate: Invoked on the UI thread after a call to publishProgress.Usually it is used  to animate a progress bar.
4.  onPostExecute: Invoked on the UI thread after doInBackground finishes executing. The result of the background computation is passed to this step as a parameter.

A task can be cancelled at any time by invoking cancel function. Below I am quoting an example of the use of AsynchTask:

package a.b;

 

import android.app.Activity;

import android.content.Intent;

import android.os.AsyncTask;

import android.os.Bundle;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.ProgressBar;

import android.widget.Toast;

 

public class Ayntaskdemo1Activity extends Activity {

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

 private ProgressBar mProgressBar;

 private Button mCalculationButton;

  

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

         

        mProgressBar = (ProgressBar) findViewById(R.id.progress_bar);

        mCalculationButton = (Button) findViewById(R.id.calculation);

         

        mCalculationButton.setOnClickListener(new OnClickListener() {

    

   @Override

   public void onClick(View v) {

    // TODO Auto-generated method stub

    CalculationTask task = new CalculationTask();

    task.execute();

   }

  });

    }

     

    /** Task that handles the procedure to store a route on the local database */

    private class CalculationTask extends AsyncTask<Void, Integer, Long> {

     

     @Override

     protected void onPreExecute() {

      // Initialize bar

      mProgressBar.setProgress(0);

     }

      

     @Override

     protected Long doInBackground(Void... data) {

      // Store route

      long counter = 0;

      for(int i = 1; i <= 10000000; i++) {

       counter += i;

       if(i % 100000 == 0) {

        publishProgress((int) i/100000);

       }

      }

       

      return counter;

     }

      

     @Override

     protected void onProgressUpdate(Integer... progress) {

      mProgressBar.setProgress(progress[0]);

        }

      

     @Override

     protected void onPostExecute(Long result) {

    Class gallery;

         try

         {

          gallery=Class.forName("a.b.gallery");

          Intent i=new Intent(Ayntaskdemo1Activity.this,gallery);

       //     startActivityForResult(i,PICK_EXISTING_PHOTO_RESULT_CODE);

                 startActivity(i);

         }

         catch(ClassNotFoundException e)

         {

          e.printStackTrace();

         }

      // Publish result

      Toast.makeText(getApplicationContext(), "Counter is " + result, Toast.LENGTH_LONG).show();

     }

    }

}

JSON parsing example 1

JSON  parsing  example 1

package a.b;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import android.widget.Toast;

public class Jsonparsedemo1Activity extends Activity {
TextView tv1,tv2;

   /** Called when the activity is first created. */
   @Override
   public void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.main);
       tv1=(TextView)findViewById(R.id.textView1);
       tv2=(TextView)findViewById(R.id.textView2);
     //  {"id":12,"name":12,"status":"ok","volumes":[{"id":17592,"name":"root","status":"ok"}]}
     
     
       final String customJSON = "{\"id\":12,\"name\":12,\"status\":\"ok\",\"volumes\":[{\"id\":17592,\"name\":\"root\",\"status\":\"ok\"}]}";     //  tv1.setText(customJSON);
       try
       {
   
      JSONObject  jobj=new JSONObject(customJSON);
      String id=jobj.getString("id");
      String myname=jobj.getString("name");
      String status1=jobj.getString("status");
      String result1="id1="+id+"\n"+"name1="+myname+"\n"+"status1"+status1;
      tv1.setText(result1);
     
     
     
      JSONArray jarray=jobj.getJSONArray("volumes");
      JSONObject myobj=jarray.getJSONObject(0);
      String  id2=myobj.getString("id");
      String myname2=myobj.getString("name");
      String status2=myobj.getString("status");
      String  result="id2="+id2+"\n"+"name2="+myname2+"\n"+"status2"+status2;
     
      tv2.setText(result);
     
       }
       catch (JSONException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
      Toast.makeText(Jsonparsedemo1Activity.this, e.toString(), Toast.LENGTH_LONG).show();
     }
      }
    }

Android Animation Example 2

                    Android Animation Example 2

SurfaceActivity.java

package a.b;

import android.app.Activity;

import android.content.Context;

import android.graphics.Bitmap;

import android.graphics.BitmapFactory;

import android.graphics.Canvas;

import android.os.Bundle;

import android.view.MotionEvent;

import android.view.SurfaceHolder;

import android.view.SurfaceView;

import android.view.View;

import android.view.View.OnTouchListener;

public class SurfaceActivity extends Activity  implements OnTouchListener {

Myview abc;

float x,y;

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

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

        abc=new Myview(this);

        abc.setOnTouchListener(this);

        setContentView(abc);

        x=0;

        y=0;

    }

@Override

protected void onPause() {

// TODO Auto-generated method stub

super.onPause();

abc.pause();

}

@Override

protected void onResume() {

// TODO Auto-generated method stub

super.onResume();

abc.resume();

}

@Override

public boolean onTouch(View arg0, MotionEvent event) {

// TODO Auto-generated method stub

x=event.getX();

y=event.getY();

return false;

}

public class Myview extends SurfaceView implements Runnable{

SurfaceHolder myholder;

Thread t=null ;

boolean isRunning=false;

public Myview(Context context) {

// TODO Auto-generated constructor stub

super(context);

myholder=getHolder();

}

public void pause()

{

isRunning=false;

while(true)

{

try {

t.join();

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

break;

}

t=null;

}

public void resume()

{

isRunning=true;

t=new Thread(this);

t.start();

}

@Override

public void run() {

// TODO Auto-generated method stub

while(isRunning)

{

if(!myholder.getSurface().isValid())

continue;

Canvas canvas=myholder.lockCanvas();

canvas.drawRGB(02, 02, 1);

if(x !=0 && y !=0)

{

Bitmap test=BitmapFactory.decodeResource(getResources(),R.drawable.f);

canvas.drawBitmap(test,x,y,null);

}

myholder.unlockCanvasAndPost(canvas);

}

}

}

}

set theme in manifest

set theme in manifest

android:theme="@android:Style/Theme.Wallpaper.NoTitleBar"

Introduction to Animation In Android

             Introduction to Animation In Android

AninmationdemoActivity.java

package a.b;

import android.app.Activity;
import android.os.Bundle;

public class AninmationdemoActivity extends Activity {

Myanimation anim;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        anim=new Myanimation(this);
        setContentView(anim);
    }
}




Myanimation .java


package a.b;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.view.View;

public class Myanimation extends View {
      Bitmap img,img1,img2,img3;
      float changey;
public Myanimation(Context context) {
super(context);
// TODO Auto-generated constructor stub
img=BitmapFactory.decodeResource(getResources(), R.drawable.r);
img1=BitmapFactory.decodeResource(getResources(), R.drawable.b);

changey = 0;
}
@Override
protected void onDraw(Canvas canvas)
{
super.onDraw(canvas);
canvas.drawColor(Color.WHITE);
canvas.drawBitmap(img, (canvas.getWidth()/2),changey,null);
canvas.drawBitmap(img1, (canvas.getWidth()/8),changey,null);

if(changey < canvas.getHeight())
{
changey +=5;
}else
{
changey =0;
}
invalidate();

}

}