Question

I want to know how to put tick mark on image which we click in grid layout.I have image of tickmark pls tell me how to put tick mark over image?

here is my code

    public class HeadshotAllPhoto extends Activity implements OnItemClickListener 
{
    ImageView bg,tickmark;
    int ht,wt;
    GridView imagegrid;
    static boolean flag = false;
    String path,filemanagerstring;
    String[] ImageNameArr;
    String filePath = null;
    String ImageName ;
    Bitmap bitmap;
    DataHelperHeadshot dbHeadshot;
    String uplaodedHeadshot;
    Cursor cursor;
    String sub_list ;
    String[] pathArr;
    Bitmap[] bmp;
    ArrayList<String> items = new ArrayList<String>();
    ImageView i;
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {   
        super.onCreate(savedInstanceState);
        setContentView(R.layout.headshotallphoto);
        dbHeadshot = new DataHelperHeadshot(this);

        bg = (ImageView)findViewById(R.id.selectHeadshotView);      

        List<String> names = this.dbHeadshot.fetchAllHeadshot();
        StringBuilder sb = new StringBuilder();
        for (String name : names)
        { 
           name.trim();
           sb.append(",");
           sb.append(name);
        } 
        bmp = new Bitmap[SelectionHeadshot.icount+1];
        for(int p=0;p<names.size();p++)           
        {       
            if(names.get(p) !=null)
            {               
                bitmap = decodeFile(names.get(p));    
                if(bitmap!=null)
                {
                    items.add(names.get(p));                  
                    bmp[p] = bitmap;
                }
            }           
        }       
        imagegrid = (GridView) findViewById(R.id.PhoneImageGrid);
        imagegrid.setAdapter(new ImageAdapter(getApplicationContext(),bmp));
        imagegrid.setOnItemClickListener(this);      
    }

    public class ImageAdapter extends BaseAdapter
    {
        private Context mContext;       
        Bitmap[] mImageArray;        

        public ImageAdapter(Context c, Bitmap[] imgArray) 
        {
              mContext = c;
              mImageArray = imgArray;              
        }

        public int getCount() 
        {
              return mImageArray.length;
        }

        public Object getItem(int position)
        {
              return position;
        }
        public long getItemId(int position)
        {
              return position;
        }

        public View getView(int position,View convertView,ViewGroup parent)
        {
            System.gc();           
            if (convertView == null) 
            {               
                i = new ImageView(mContext);
                i.setLayoutParams(new GridView.LayoutParams(92,92));
                i.setScaleType(ImageView.ScaleType.CENTER_CROP);               
                i.setImageBitmap(mImageArray[position]);                
            }
            else 
                 i = (ImageView) convertView;           
            return i;
        }

    }

    public Bitmap decodeFile(String filePath) 
    {
        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(filePath, o);

        // The new size we want to scale to
        final int REQUIRED_SIZE = 100;
        final int H = 50;

        // Find the correct scale value. It should be the power of 2.
        int width_tmp = o.outWidth, height_tmp = o.outHeight;
        int scale = 1;
        while (true) {
            if (width_tmp < REQUIRED_SIZE && height_tmp < H)
                break;
            width_tmp /= 2;
            height_tmp /= 2;
            scale *= 2;
        }
        // Decode with inSampleSize
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        o2.inSampleSize = scale;        
        bitmap = BitmapFactory.decodeFile(filePath, o2);        
        return bitmap;
    }

    public void onItemClick(AdapterView<?> a, View v, final int position, long id) 
    {   
        imagegrid.getChildAt(position).setBackgroundResource(R.drawable.imgredselectmark);  
    }
}

Thanks

Answer 1

Try this code :

        private int Splash_Time_Limit = 3000;

        gridview.setOnItemClickListener(new OnItemClickListener(){

        @Override
        public void onItemClick(AdapterView<?> arg0, View arg1, final int arg2,
                long arg3) {
            // TODO Auto-generated method stub

            gridview.getChildAt(arg2).setBackgroundResource(R.drawable.wrong);

            //  new Handler().postDelayed(new Runnable() {
            //  @Override
            //  public void run() {
            //       gridview.getChildAt(arg2).setBackgroundResource(R.drawable.tick1);
            //  }
            //  }, Splash_Time_Limit);
        }
    });

If you click the Image in Grid View the images tick image will be set as Background image.

If you want to disappear that Tick image after some times use Handler code that is commented.