This version of the rendering library is more recent than

Button mIdButtonHome = (Button)findViewById(R.id.idButtonHome);
	mIdButtonHome.setOnClickListener(new View.OnClickListener() {
		public void onClick(View v) {
			Intent browserIntent = new Intent(
					Intent.ACTION_VIEW,
					Uri.parse("//android.okhelp.cz/category/software/"));
			startActivity(browserIntent);
		}
	});

// Context instead Activity as a parameter
@Override
public void onAttach(Context context) {
    super.onAttach(context);

    Activity a;

    if (context instanceof Activity){
        a=(Activity) context;
    }

}

OnNoteClickedListener listener;
/* old emxample of usage
	@Override
	public void onAttach(Activity activity) {
		super.onAttach(activity);
		try {
			listener = (OnNoteClickedListener) activity;
		} catch (ClassCastException e) {
			throw new ClassCastException(activity.toString()
					+ " must implement OnNoteClickedListener");
		}
	}
*/
// new version of code
	@Override
	public void onAttach(Context context) {
		super.onAttach(context);

		Activity a;

		if (context instanceof Activity){
			a=(Activity) context;
			try {
				listener = (OnNoteClickedListener) a;
			} catch (ClassCastException e) {
				throw new ClassCastException(a.toString()
						+ " must implement OnNoteClickedListener");
			}
		}

	}

Context myContext_1 = ThisClassName.this; // to open a Dialog

Context myContext_2 = getContext();

Context myContext_3 = this.getContext();

Context myContext_4 = this;

Context myContext_5 = this.getApplicationContext ();





	OnClickListener getImageBtnOnClick = new OnClickListener() {

		public void onClick(View view) {

			Context context = view.getContext();



		}

	};

// Toast 

Toast.makeText(getApplicationContext(), "Context == getApplicationContext "

   , Toast.LENGTH_SHORT).show();







// store Context in public class

public class MyActivity extends Activity { 

    public static Context myCnt = null; 

    ... 

    protected void onCreate(Bundle icicle) { 

         ... 

        myCnt = this; 

        MyStorage.setContext(myCnt); 

        // or

        // MyStorage.setContext(this);        

        

        // cntxFromStorage == this

        Context cntxFromStorage = MyStorage.getContext();

        ... 

        }; 

    }; 

    

public class MyStorage

{

    private static Context cntStorageContext = null;

 	  

     

    public static Context getContext() { 

        return cntStorageContext;

     }

        

    public static void setContext(Context context) {

	 MyStorage.cntStorageContext = context;

	  }





    }; 



class DataBaseHelper extends SQLiteOpenHelper {

// get MyActivity context 

Context cnt = MyStorage.getContext();



}

private Context _context;
	@Override
		public void onStart(Intent intent, int startId) {
                        _context = this;
			String definePage ="//old.chmi.cz/meteo/rad/rad_data.php";
			 Intent defineIntent = new Intent(Intent.ACTION_VIEW,
			 Uri.parse(definePage));
			 PendingIntent pendingIntent = PendingIntent.getActivity(_context,
			 0 /* no requestCode */, defineIntent, 0 /* no flags */);
			 updateViews.setOnClickPendingIntent(R.id.widget, pendingIntent);

EditText hEditText;

// TextChanged in onCreate

hEditText = (EditText)findViewById(R.id.idEditText);

hEditText.addTextChangedListener(new TextWatcher() {

	public void afterTextChanged(Editable str) {

	}



	public void beforeTextChanged(CharSequence s, int start, int count,

			int after) {

	}



	public void onTextChanged(CharSequence sq, int start, int before,

			int count) {

	}

});