ANDROID TRAINING IN MUMBAI BY OM SIR

Thursday, 31 December 2015

Utilizing Resources and Media in Andoird

Utilizing Resources and Media:

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

ImageView example

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

(1)write code for MainActivity.java :

package imageview.test.om.com.myapplication;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ImageView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ImageView image=(ImageView)findViewById(R.id.imageView);
        image.setImageResource(R.drawable.om);
    }

}

(2)write code for activity_main.xml:

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

<android.support.design.widget.CoordinatorLayout

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

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

    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

    android:layout_height="match_parent" android:fitsSystemWindows="true"

    tools:context=".MainActivity">



    <android.support.design.widget.AppBarLayout android:layout_height="wrap_content"

        android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay">



        <android.support.v7.widget.Toolbar android:id="@+id/toolbar"

            android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" />



    </android.support.design.widget.AppBarLayout>



    <include layout="@layout/content_main" />



    <android.support.design.widget.FloatingActionButton android:id="@+id/fab"

        android:layout_width="wrap_content" android:layout_height="wrap_content"

        android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin"

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



</android.support.design.widget.CoordinatorLayout>

(3)write content_main.xml file (note keep om.jpg image file inside drawable and then your path “res/drawable/om.jpg” directory :

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

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

    xmlns:tools="http://schemas.android.com/tools"

    xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"

    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:showIn="@layout/activity_main" tools:context=".MainActivity">



    <ImageView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/imageView"

        android:src="@drawable/om"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="197dp" />



</RelativeLayout>

output :

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

Audio example :

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

(1)write code for MainActivity.java file:

package menu.test.om.com.mypractice;

import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button b=(Button)findViewById(R.id.button);
        b.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                MediaPlayer mp=MediaPlayer.create(MainActivity.this,R.raw.song);
                mp.start();
            }
        });
    }

}

(2)write code for activity_main.xml file:

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

<android.support.design.widget.CoordinatorLayout

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

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

    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

    android:layout_height="match_parent" android:fitsSystemWindows="true"

    tools:context=".MainActivity">



    <android.support.design.widget.AppBarLayout android:layout_height="wrap_content"

        android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay">



        <android.support.v7.widget.Toolbar android:id="@+id/toolbar"

            android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" />



    </android.support.design.widget.AppBarLayout>



    <include layout="@layout/content_main" />



    <android.support.design.widget.FloatingActionButton android:id="@+id/fab"

        android:layout_width="wrap_content" android:layout_height="wrap_content"

        android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin"

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



</android.support.design.widget.CoordinatorLayout>

(3) write code content_main.xml file :

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

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

    xmlns:tools="http://schemas.android.com/tools"

    xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"

    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:showIn="@layout/activity_main" tools:context=".MainActivity">







    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="PLAY"

        android:id="@+id/button"

        android:layout_marginTop="147dp"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"></Button>



    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

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

        android:text="PLAYING AUDIO"

        android:id="@+id/textView"

        android:layout_alignBottom="@+id/button"

        android:layout_alignParentTop="true"

        android:layout_alignLeft="@+id/button"

        android:layout_alignStart="@+id/button" />



</RelativeLayout>

output :

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

TOGGLE BUTTON example:

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

(1) write code for MainActivity.java:

package newyear.test.om.com.happynewyear;

import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.TextView;
import android.widget.ToggleButton;

public class MainActivity extends AppCompatActivity {
    TextView response;
    MediaPlayer mp;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

         response=(TextView)findViewById(R.id.response);
        response.setText("Click on play to listen surprise word by OM");
        mp=MediaPlayer.create(MainActivity.this,R.raw.song);
        final ToggleButton playStopButton=(ToggleButton)findViewById(R.id.playstop_btn);
        playStopButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                if(playStopButton.isChecked())
                {
                response.setText("HAPPY NEW YEAR FROM OM");
                    mp.start();

                }
                else
                {
                    response.setText("Click on play to listen surprise word by OM");
                    mp.pause();
                }
            }
        });

    }

}

(2)write code for activity_main.xml file :

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

<android.support.design.widget.CoordinatorLayout

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

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

    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

    android:layout_height="match_parent" android:fitsSystemWindows="true"

    tools:context=".MainActivity">



    <android.support.design.widget.AppBarLayout android:layout_height="wrap_content"

        android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay">



        <android.support.v7.widget.Toolbar android:id="@+id/toolbar"

            android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" />



    </android.support.design.widget.AppBarLayout>



    <include layout="@layout/content_main" />



    <android.support.design.widget.FloatingActionButton android:id="@+id/fab"

        android:layout_width="wrap_content" android:layout_height="wrap_content"

        android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin"

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



</android.support.design.widget.CoordinatorLayout>

(3)write code for content_main.xml file :

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

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

    xmlns:tools="http://schemas.android.com/tools"

    xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"

    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:showIn="@layout/activity_main" tools:context=".MainActivity">



    <ToggleButton

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/playstop_btn"

        android:textOn="Stop"

        android:textOff="Play"

        android:layout_marginTop="197dp"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:checked="false" />



    <TextView

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

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

      android:gravity="center"

        android:id="@+id/response"

        android:layout_alignParentTop="true"

        android:layout_centerHorizontal="true"

        android:layout_marginTop="60dp" />



</RelativeLayout>

output :

By: OM MAURYA SIR On 03:06

Wednesday, 30 December 2015

Array in Android

Arrays:

Arrays refer to Collection of values or elements.Arrays are known for their capability of direct reference;

(1)String Arrays :

As the name Suggests ,the String array provides an array of strings. such a resource is popularly used with selection widgets such as

Listview and spinner that need to display a collection of selectable items to the user.

to define string array syntax is:

<string-array name="array_name">

<item>text1</item>

<item>text 2</item>

.....

</string>

(2)Integer Arrays:

<integer-array name="OddNumbers">
    <item>1</item>
    <item>3</item>
    <item>5</item>
    <item>7</item>
    <item>9</item>
</integer-array>

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

String Array example:

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

(1) write code for MainActivity.java :

package checkbox.test.om.com.myapplication;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView fruitsView=(TextView)findViewById(R.id.fruits_view);
        String [] fruitsArray=getResources().getStringArray(R.array.fruits);
        String str="";
        for(int i=0; i<fruitsArray.length;i++)
        {
            str +=fruitsArray[i]+"\n";
        }
        fruitsView.setText(str);
    }

}

(2)write code activity_main.xml file:

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

<android.support.design.widget.CoordinatorLayout

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

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

    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

    android:layout_height="match_parent" android:fitsSystemWindows="true"

    tools:context=".MainActivity">



    <android.support.design.widget.AppBarLayout android:layout_height="wrap_content"

        android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay">



        <android.support.v7.widget.Toolbar android:id="@+id/toolbar"

            android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" />



    </android.support.design.widget.AppBarLayout>



    <include layout="@layout/content_main" />



    <android.support.design.widget.FloatingActionButton android:id="@+id/fab"

        android:layout_width="wrap_content" android:layout_height="wrap_content"

        android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin"

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



</android.support.design.widget.CoordinatorLayout>

(3)write code for content_main.xml file:

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

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

    xmlns:tools="http://schemas.android.com/tools"

    xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"

    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:showIn="@layout/activity_main" tools:context=".MainActivity">

    <TextView

        android:id="@+id/fruits_view"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content" />

</LinearLayout>

(4)write code for strings.xml file :

<resources>

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

    <string name="action_settings">Settings</string>

    <string name="title_activity_string_array_app">StringArrayAppActivity</string>

    <string-array name="fruits">

        <item>Apple</item>

        <item>Mango</item>

        <item>Orange</item>

        <item>Grapes</item>

        <item>Banana</item>

    </string-array>

</resources>

output :

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

Integer array example:

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

(1) first write code for MainActivity.java :

package checkbox.test.om.com.myapplication;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        TextView oddNumsView=(TextView)findViewById(R.id.oddnums_view);
        int [] oddNumsArray=getResources().getIntArray(R.array.OddNumbers);
        String str="";
        for(int i=0; i<oddNumsArray.length;i++)
        {
            str +=oddNumsArray[i]+"\n";
        }
        oddNumsView.setText(str);
    }

}

(2)write code for activity_main.xml file:

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

<android.support.design.widget.CoordinatorLayout

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

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

    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"

    android:layout_height="match_parent" android:fitsSystemWindows="true"

    tools:context=".MainActivity">



    <android.support.design.widget.AppBarLayout android:layout_height="wrap_content"

        android:layout_width="match_parent" android:theme="@style/AppTheme.AppBarOverlay">



        <android.support.v7.widget.Toolbar android:id="@+id/toolbar"

            android:layout_width="match_parent" android:layout_height="?attr/actionBarSize"

            android:background="?attr/colorPrimary" app:popupTheme="@style/AppTheme.PopupOverlay" />



    </android.support.design.widget.AppBarLayout>



    <include layout="@layout/content_main" />



    <android.support.design.widget.FloatingActionButton android:id="@+id/fab"

        android:layout_width="wrap_content" android:layout_height="wrap_content"

        android:layout_gravity="bottom|end" android:layout_margin="@dimen/fab_margin"

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



</android.support.design.widget.CoordinatorLayout>

(3)write code for content_main.xml file :

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

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

    xmlns:tools="http://schemas.android.com/tools"

    xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"

    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    android:paddingBottom="@dimen/activity_vertical_margin"

    app:layout_behavior="@string/appbar_scrolling_view_behavior"

    tools:showIn="@layout/activity_main" tools:context=".MainActivity">

    <TextView

        android:id="@+id/oddnums_view"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content" />

</LinearLayout>

(4) write code for strings.xml file :

<resources>

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

    <string name="action_settings">Settings</string>

    <integer-array name="OddNumbers">

        <item>1</item>

        <item>3</item>

        <item>5</item>

        <item>7</item>

        <item>9</item>

    </integer-array>

</resources>

output :

By: OM MAURYA SIR On 23:55

ANDROID TRAINING IN MUMBAI BY OM SIR

Thursday, 31 December 2015

Utilizing Resources and Media in Andoird

Wednesday, 30 December 2015

Array in Android

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