package com.example.wallpaperdemo;

import java.io.IOException;

import android.os.Bundle;
import android.app.Activity;
import android.app.WallpaperManager;
import android.content.SharedPreferences;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.util.DisplayMetrics;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
	public static Integer[] mThumbId = {
            R.drawable.img};
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		Button b=(Button)findViewById(R.id.button1);
		b.setOnClickListener(new OnClickListener() {

			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				SharedPreferences	sharedPreferences = getSharedPreferences("wallpaperapp",0);
				sharedPreferences.edit().putInt("position",0).commit();
			    DisplayMetrics metrics = new DisplayMetrics();
			    getWindowManager().getDefaultDisplay().getMetrics(metrics);
			    int height = metrics.heightPixels;
			    int width = metrics.widthPixels;
			    Bitmap tempbitMap = BitmapFactory.decodeResource(getResources(),mThumbId[0]);
		  	  	Bitmap bitmap = Bitmap.createScaledBitmap(tempbitMap,width,height, true);
			    WallpaperManager wallpaperManager = WallpaperManager.getInstance(MainActivity.this);
			    wallpaperManager.setWallpaperOffsetSteps(1, 1);
			    wallpaperManager.suggestDesiredDimensions(width, height);
			    try {
			      wallpaperManager.setBitmap(bitmap);
			      } catch (IOException e) {
			      e.printStackTrace();
			    }
			}
		});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

}