Play video in Android

Hi All,

Make sure you create a folder in res directory 'raw' in 'res'

Ref : http://www.coders-hub.com/p/android.html

SQLite Delete

Hi All,

See the code

mainactivity.java

------------------------------------------------------------------------------------

protected void onCreate(Bundle savedInstanceState) {

            //HUP2();

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main5);

            lstview=(ListView)findViewById(R.id.lst_book);

           

           

           

            int i=0;

            //listitem=new String[5];

           

            db=SQLiteDatabase.openDatabase("data/data/com.example.lms/databases/mydb", null, SQLiteDatabase.OPEN_READONLY);

            String s="select * from tbl_book";

            Cursor c=db.rawQuery(s, null);

            int count=c.getCount();

           

            listitem=new String[count];

            if(c!=null)

            {    

                  if(c.moveToFirst())

                  {

                        do

                        {

                              String book=c.getString(1);

                              listitem[i]=book;

                              i++;

                        }while(c.moveToNext());

                  }

            }

            ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.lst,R.id.txt_view_book,listitem);

            lstview.setAdapter(adapter);

      lstview.setOnItemClickListener(new OnItemClickListener() {

           

            @Override

            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

                  // TODO Auto-generated method stub

                  String entry= (String) parent.getAdapter().getItem(position);

                  t1.speak(entry, TextToSpeech.QUEUE_FLUSH, null);

                  //String message = entry.getMessage();

                  //Toast.makeText(getApplicationContext(), entry, Toast.LENGTH_LONG).show();

                  Intent in=new Intent(Main5Activity.this,Main8Activity.class);

                 

                   in.putExtra("txt_view_book",entry);

                   startActivity(in);

            }

      });

           

      }

 ====================================================================

  Main8Activity.java

 ====================================================================

protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            setContentView(R.layout.activity_main8);

            Intent in=getIntent();

            entry=in.getStringExtra("txt_view_book");

            tx2=(EditText) findViewById(R.id.txt_view);

            tx2.setText(entry);

      }

     

      public void deletbook(View view)

      {

           

            //db=SQLiteDatabase.openDatabase("data/data/com.example.lms/databases/mydb", null, SQLiteDatabase.OPEN_READONLY);

            db=this.openOrCreateDatabase("mydb", MODE_PRIVATE, null);

            String s="delete from tbl_book where b_title like '"+tx2.getText()+"'";

            db.execSQL(s);

            Toast.makeText(getApplicationContext(),"Deleted", Toast.LENGTH_LONG).show();

      }

Android Service

Hi All,

Use this material to play an audio file as service

https://www.javatpoint.com/android-service-tutorial

Broadcast Receiver

Hi all,
See the code for Broadcast receiver

<application

   android:icon="@drawable/ic_launcher"

   android:label="@string/app_name"

   android:theme="@style/AppTheme" >

   <receiver android:name="MyReceiver1">

  

      <intent-filter>

         <action android:name="android.intent.action.DATE_CHANGED">

         </action>

      </intent-filter>

  

   </receiver>

</application>

--------------------------------------------------------------------------------------------------------

package com.example.tutorialspoint7.myapplication;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.widget.Toast;

/**

 * Created by TutorialsPoint7 on 8/23/2016.

 */

public class MyReceiver1 extends BroadcastReceiver{

   @Override

   public void onReceive(Context context, Intent intent) {

      Toast.makeText(context, "Date Changed.", Toast.LENGTH_LONG).show();

   }

}

------------------------------------------------------------------------------------------------------------------

Find a few such broadcasts

1             

android.intent.action.BATTERY_LOW

Indicates low battery condition on the device.

2             

android.intent.action.BATTERY_CHANGED

Sticky broadcast containing the charging state, level, and other information about the battery.

3             

android.intent.action.BATTERY_OKAY

Indicates the battery is now okay after being low.

4             

android.intent.action.BOOT_COMPLETED

This is broadcast once, after the system has finished booting.

5             

android.intent.action.BUG_REPORT

Show activity for reporting a bug.

6            

android.intent.action.CALL_BUTTON

The user pressed the "call" button to go to the dialer or other appropriate UI for placing a call.

7            

android.intent.action.CALL

Perform a call to someone specified by the data.

8             

android.intent.action.DATE_CHANGED

The date has changed.

9             

android.intent.action.REBOOT

Have the device reboot.

Video Linking in your Android App

Hi All,

First you place one 'VideoView' from 'Images& Video" tab in layout toolbox

Then add this code in the onCreate() function.

Place a 3gp file in WWW folder of WAMP

-------------------------------------
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
VideoView videoView = (VideoView)findViewById(R.id.videoView1); 
// videoView.setVideoURI(Uri.parse(path));

videoView.setVideoPath("http://10.0.2.2/HUP.3gp");

videoView.start();   
}

---------------------------------------------
Give INTERNET permission in manifest.xml file

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

    <uses-sdk
        android:minSdkVersion="19"
        android:targetSdkVersion="19" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

</manifest>

Include List View

Hi All,

To show data in listview from Android there are two steps


Step I 

Create a Layout file with one TextView ,ie label box

<?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/listviewtext"

 android:layout_width="wrap_content"

 android:layout_height="wrap_content"

 android:text="TextView" />

</LinearLayout>

Step II

Place one List view in another activity.

Use this code in onCreate() function to view data from DB in list view.

public void HUP1()

                {

                String [] listitem;

                int i=0;

                listitem=new String[3];

                ListView lstview=(ListView)findViewById(R.id.lstview);

                SQLiteDatabase hupdb;

                hupdb=this.openOrCreateDatabase("hup", MODE_PRIVATE, null);

                hupdb.openDatabase("data/data/com.example.snit2/databases/hup", null, SQLiteDatabase.OPEN_READONLY);

                String s="select * from registration";

                Cursor c=hupdb.rawQuery(s, null);

                int count=c.getCount();

                listitem=new String[count];

                String val="";

                    if(c!=null)

                    {

                                   if(c.moveToFirst())

                       {

                         do

                         {

                                 String username=c.getString(0);

                                 String abc=c.getString(1);

                                 val=username + " " + abc;

                                 listitem[i]=val;

                                 i++;

                         }while(c.moveToNext());

                       }

                    }

                   

                    final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.layoutview,R.id.txtview,listitem);

lstview.setAdapter(adapter);

lstview.setOnItemClickListener(new OnItemClickListener() {

@Override

public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

// TODO Auto-generated method stub

String entry= (String) parent.getAdapter().getItem(position);

//String message = entry.getMessage();

Toast.makeText(getApplicationContext(), entry, Toast.LENGTH_LONG).show();

}

});

}