Draw Oval Android basic example

drawOval(), setStrokeWidth(), setStyle()



public class MainActivity 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) {

			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); //
 
			canvas.drawOval(new RectF(50, 50, 20, 40), p);;
		}

	}
}

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Další témata ....(Topics)

392

Unchecked call to add(E) as a member of raw type java.util.List | unchecked-call-to-adde-as-a-member-of-raw-type-java-util-list


// warnning
private List list = new ArrayList();

// ok /put type of added object
private List<String> list = new ArrayList<String>();

150

drawBitmap, clipPath, UNION, DIFFERENCE, INTERSECT, REPLACE, XOR Android example | drawbitmap-clippath-union-difference-intersect-replace-xor-android-example


public class MainActivity 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);

			 Bitmap b = Bitmap.createBitmap(200, 200,
			 Bitmap.Config.ARGB_8888);

			// 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;

		    Canvas c = new Canvas(b);
		    paint.setAlpha(255); //0x80
		    c.translate(0, 30);
		    c.drawBitmap(bitmapOrg, new Matrix(), paint);
		    paint.setColor(Color.BLUE);
        Path mPath = new Path();
		    mPath.addCircle(50, 50, 50, Path.Direction.CCW);
            //c.clipPath(mPath, Region.Op.UNION);
            //c.clipPath(mPath, Region.Op.DIFFERENCE);
            c.clipPath(mPath, Region.Op.INTERSECT);
            //c.clipPath(mPath, Region.Op.REPLACE);
            //c.clipPath(mPath, Region.Op.XOR);
           paint.setColor(Color.GREEN);
           paint.setAntiAlias(true);
           c.drawCircle(30, 20, 30, paint);

		    int h = bitmapOrg.getHeight();
			//canvas.drawBitmap(bitmapOrg, 10, 10, paint);
			canvas.drawBitmap(b, 0, 10 + h + 10, paint);

		}

	}
}

How quickly restart adb.exe ADB server Android emulator example | how-quickly-restart-adb-exe-adb-server-android-emulator-example

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:

Open Total Commander

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

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"]

android/adb-restart-server-android-emulator-300x188.png

[/caption]

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

Permission settings of Android application example | permission-settings-of-android-application-example

In your project AndroidManifest.xml you can set permission of Android application example source code.
For example if you want allow your application connection to INTERNET you have to permit this in AndroidManifest.xml.
WebViev show error: Website Not Available you have to permit INTERNET


    <uses-permission
        android:name="android.permission.INTERNET" />
    <uses-permission
        android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission
        android:name="android.permission.USE_CREDENTIALS" />
    <uses-permission
        android:name="android.permission.MANAGE_ACCOUNTS" />
    <uses-permission
        android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
    <uses-permission
        android:name="android.permission.WRITE_SETTINGS" />
    <uses-permission
        android:name="android.permission.WRITE_SECURE_SETTINGS" />
    <uses-permission
        android:name="android.permission.READ_CONTACTS" />
    <uses-permission
        android:name="android.permission.WRITE_CONTACTS" />
    <uses-permission
        android:name="android.permission.READ_SYNC_STATS" />
    <uses-permission
        android:name="android.permission.READ_SYNC_SETTINGS" />
    <uses-permission
        android:name="android.permission.WRITE_SYNC_SETTINGS" />

201

Samsung Galaxy Mini (S5570) | samsung-galaxy-mini-s5570

Brand	Samsung
Model (codename)	Galaxy Mini (S5570)
Price (cena, včetně DPH)	3500 / 06.2012
Display size in Inch (v palcích)	3.14
Display-resolution	240x320
Dotek-typ	kapacitní
CPU typ	MSM7227
CPU MHz	600
CPU core
L2 cache	yes
RAM	256
ROM	512
GPU	Adreno 200
NenaMark2 Benchmark
GPU-GLBenchmark
Baterie mAh	1200
Foto MPx	3
Autofocus	no
Video	QVGA (320 x 240) při 15 frames/s
Official Android ICS	Android Froyo 2.2
CyanogenMod support	yes
Dotek-prstů-max	Dual-touch (two fingers)
Display-ppi	127
Display-retina	39%
Networks	GSM&EDGE (850 / 900 / 1.800 / 1.900 MHz) 3G (900 / 2.100 MHz)
Connectivity	Bluetooth V2.1 , USB V2.0 , USB mass storage , SyncML(DM) , WIFI , AGPS, 3.5 mm jack
Note

Samsung S5570 Galaxy Mini - image
android/samsung-s5570-galaxy-mini.jpg

Editace: 2013-12-09 13:11:12
Počet článků v kategorii: 396
Url:draw-oval-android-basic-example