If you have to type frequently the same code you can create templates which can be activate via autocomplete with Ctrl + Space.

For example lets assume setOnClickListener body.

To create a template for this select the menu Window->Preferences and Open Java -> Editor -> Templates

Type name of template in Eclipse s editor and pres Ctrl+Space

[caption id="attachment_1114" align="alignleft" width="300" caption="Eclipse-show-template-proposals"][/caption]

Select your template from intellisense help and press Enter or double click on selected item.

[caption id="attachment_1116" align="alignleft" width="300" caption="Eclipse - select your template"][/caption]

	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);
		}
	});

Quick help in Eclipse editor: select keyword and press Ctrl+1

drawRect(), Paint, setStroke(), setStyle(), Canvas example source code.

	@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) {

			canvas.drawColor(Color.CYAN);
			Paint p = new Paint();
			// smooths
			p.setAntiAlias(true);
			p.setColor(Color.RED);
			p.setStyle(Paint.Style.STROKE); 
			p.setStrokeWidth(4.5f);
			// opacity
			//p.setAlpha(0x80); //
//drawRect (float left, float top, float right, float bottom, Paint paint) 
			canvas.drawRect(10, 10, 30, 30, p);
		}

	}
}

AlertDialog like MessageBox by WinApi:
If error: Unable to add window -- token null is not for an application
try change get Context.

// you can put this text into some function body or case in switch statement
                new AlertDialog.Builder(this)
                    .setMessage("Hello boys!!!")
                    .setPositiveButton("OK", null)
                    .show();

Context context = getApplicationContext();
	AlertDialog.Builder builder = new AlertDialog.Builder(context);
	builder.setTitle("Select font size");
	final CharSequence[] chsSize= { "Small", "Medium", "Large"};
	builder.setSingleChoiceItems(chsSize, 0 /*sel.item*/, 
	new DialogInterface.OnClickListener() {
 	    public void onClick(DialogInterface dialog, int item) {
	    		 Toast.makeText(context, "Hello from dialog!!!", Toast.LENGTH_SHORT).show();
	        dialog.dismiss();
	    }
	});
	AlertDialog alert = builder.create();
	alert.show();
    

"id cannot be resolved or is not a field” error
If you copy project to workspace or some code from other project you can get this error.

Try remove or add import your R file:

import com.example.app.R

Check xml files.
Clean project by menu Project-Clean

Maybe you have to create new project end copy old source files to new project folders.

Create file restartADB.bat in folder
c:\Program Files\Android\android-sdk-windows\platform-tools\
Write into restartADB.bat this code:

adb kill-server && adb start-server
pause

Save restartADB.bat file.
If you want restart adb.exe server, run restartADB.bat by double click on icon.


Next example:

1. Open Total Commander


2. Open folder with adb.exe usually in
   c:\Program Files\Android\android-sdk-windows\platform-tools\


3. Put into command line command: adb kill-server && adb start-server and press Enter

[caption id="attachment_778" align="alignleft" width="300" caption="ADB server restart by command line"][/caption]

Try restart ADB if this or similar errors:
Emulator] emulator: emulator window was out of view and was recentred