Try:
- close Eclipse and continue updating
or
- change permission of folder
or
- disable antivirus
or
- copy manually from zip packages from temp
c:\Program Files\android\sdk\temp\
c:\Program Files\android\sdk\temp\platform-tools_r19.0.1-windows.zip
c:\Program Files\android\sdk\temp\tools_r22.6.2-windows.zip
into propriety folders
or
- download all SDK package and replace old
https://developer.android.com/sdk/index.html?hl=sk

Black and white bitmap image pictures, gray scale colormatrix Android example.

public class ApokusActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(new SampleView(this));
	}

	private static class SampleView extends View {

		// CONSTRUCTOR
		public SampleView(Context context) {
			super(context);
			setFocusable(true);

		}

		@Override
		protected void onDraw(Canvas canvas) {
			Paint paint = new Paint();

			canvas.drawColor(Color.YELLOW);


			// you need to insert a image flower_blue into res/drawable folder

			paint.setFilterBitmap(true);
			Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),
					R.drawable.flower_blue);
			canvas.drawBitmap(bitmapOrg, 10, 10, paint);
			int width, height;

		    ColorMatrix cm = new ColorMatrix(
		    		new float[]{
		    		0.5f,0.5f,0.5f,0,0,
		            0.5f,0.5f,0.5f,0,0,
		            0.5f,0.5f,0.5f,0,0,
		            0,0,0,1,0,0,
		            0,0,0,0,1,0
		            });
		    cm.setSaturation(0);
		    ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
		    paint.setColorFilter(f);
		    int h = bitmapOrg.getHeight();
			//canvas.drawBitmap(bitmapOrg, 10, 10, paint);
			canvas.drawBitmap(bitmapOrg, 10, 10 + h + 10, paint);

		}

	}
}

Long press by finger on screen
From dialogue select Widgets
Select your widget
Put your widget on the screen

Video tutorial - to add home screen widgets - Android 2.1

Try this solution - into xml file add row to EditText tag:

android:textColorHint="@color/grey"

Table of usability phones with Android: (Our software)

October 2011	September 2011
Samsung Galaxy S2 10,90% Samsung Galaxy S 8,10% Samsung Galaxy Tab 7,00% Samsung Galaxy Mini 6,20% HTC Desire HD 4,10% Samsung Galaxy Ace 4,10% Samsung Galaxy S 4,00% Samsung Galaxy Fit 3,30% HTC Wildfire 3,20% SEMC Xperia X10 2,20%	Samsung Galaxy S2 13.8% Samsung Galaxy S 8.5% Samsung Galaxy Tab 7.4% Samsung Galaxy Mini 5.4% Samsung Galaxy S 4.0% HTC Desire HD 3.8% Samsung Galaxy Ace 3.8% HTC Wildfire 3.2% Samsung Galaxy Fit 3.1% SEMC Xperia X10 2.1%

Graph of usability Smartphone with Android - October 2011:

Samsung Galaxy S2 vs iPhone4 - video

Samsung Galaxy S2 vs iPhone4 - browsing, gaming, apps, performance, browser, fast, against, navigation, Sygic, apk, Android, iOS