Android Gallery Page Indicator

import android.content.Context;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.Gallery;

import android.widget.ImageView;

 

 

public class ImageAdapter extends BaseAdapter {

    private Context mContext;

 

    //array of integers for images IDs

    private Integer[] mImageIds = {

            R.drawable.avatar_423,

            R.drawable.da,

            R.drawable.penguins

 

    };

 

    //constructor

    public ImageAdapter (Context c){

        mContext = c;

    }

 

    @Override

    public int getCount() {

        return mImageIds.length;

    }

 

    @Override

    public Object getItem(int i) {

        return i;

    }

 

    @Override

    public long getItemId(int i) {

        return i;

    }

 

    @Override

    public View getView(int i, View view, ViewGroup viewGroup) {

        ImageView imageView = new ImageView(mContext);

 

        imageView.setImageResource(mImageIds[i]);

        imageView.setLayoutParams(new Gallery.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));

        return imageView;

    }

}

 

 

 

 

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">

    <TextView

            android:layout_width="fill_parent"

            android:layout_height="wrap_content"

            android:text="Hello World, MyActivity"/>

 

    <!-- This is the Gallery -->

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

             android:id="@+id/gallery"

             android:layout_width="fill_parent"

             android:layout_height="wrap_content"/>

 

    <!-- This LinearLayout if for the dots -->

    <LinearLayout android:id="@+id/image_count"

                  android:layout_width="fill_parent"

                  android:layout_height="wrap_content"

                  android:orientation="horizontal"

                  android:gravity="center"

                  android:background="#00000000">

    </LinearLayout>

 

</LinearLayout>

 

 

 

MainActivity

 

 

import android.app.Activity;

import android.graphics.Color;

import android.graphics.Typeface;

import android.os.Bundle;

import android.view.View;

import android.widget.*;

 

public class MyActivity extends Activity

{

    static TextView mDotsText[];

    private int mDotsCount;

    private LinearLayout mDotsLayout;

 

 

    @Override

    public void onCreate(Bundle savedInstanceState)

    {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

 

        //here we create the gallery and set our adapter created before

        Gallery gallery = (Gallery)findViewById(R.id.gallery);

        gallery.setAdapter(new ImageAdapter(this));

 

 

        mDotsLayout = (LinearLayout)findViewById(R.id.image_count);

        //here we count the number of images we have to know how many dots we need

        mDotsCount = gallery.getAdapter().getCount();

 

        //here we create the dots

        //as you can see the dots are nothing but "."  of large size

        mDotsText = new TextView[mDotsCount];

 

        //here we set the dots

        for (int i = 0; i < mDotsCount; i++) {

            mDotsText[i] = new TextView(this);

            mDotsText[i].setText(".");

            mDotsText[i].setTextSize(45);

            mDotsText[i].setTypeface(null, Typeface.BOLD);

            mDotsText[i].setTextColor(android.graphics.Color.GRAY);

            mDotsLayout.addView(mDotsText[i]);

        }

 

 

        //when we scroll the images we have to set the dot that corresponds to the image to White and the others

        //will be Gray

        gallery.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

            @Override

            public void onItemSelected(AdapterView adapterView, View view, int pos, long l) {

 

                for (int i = 0; i < mDotsCount; i++) {

                    MyActivity.mDotsText[i]

                            .setTextColor(Color.GRAY);

                }

 

                MyActivity.mDotsText[pos]

                        .setTextColor(Color.WHITE);

            }

 

            @Override

            public void onNothingSelected(AdapterView adapterView) {

 

            }

        });

    }

}

 

 

Done:)

 

 

How to browse SQLLite Data in android

While Android puts a powerful built-in database at your disposal, it doesn't come with the best set of debugging tools. In fact, unless you have a rooted device, you can't even get the SQLite tables off your device without jumping through some hoops.  Fortunately, the Android emulator doesn't have this restriction.


Within Eclipse, you need to switch to DDMS mode by going to Window | Open Perspective | DDMS. If you've never used DDMS, you'll likely need to go to Window | Open Perspective | Other and then browse for DDMS within the list

Once the DDMS view is active, choose the File Explorer tab. You'll find your database in the /data/data/your.app.namespace/databases directory. There are two virtually indistinguishable icons in the upper right-hand corner of the tab that represent a pull and a push of a file, respectively. Use the pull icon (the one on the left) to save a copy of the SQLite database to your development machine and change extension of the copied file to .sqlite


 Now you have a copy of your database on your workstation, but you still need some kind of SQLite viewer to take a peek. I use SQLite Manager, because it is free and runs well

Open the SQLite Manager in the fire fox and select connect database option as shown below




Once you select browse for the file which you have saved in your workstation .

Done:)
You can browse and check your data