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Draw Rect Android basic example


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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);
		}

	}
}

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Open Save UTF-8 File To String Java Android Code | open-save-utf-8-file-to-string-java-android-code



String sFileContent = readFile("myfile.txt",StandardCharsets.UTF_8);

	static String readFile(String path, Charset encoding) 
		  throws IOException 
		{
		  byte[] encoded = Files.readAllBytes(Paths.get(path));
		  return encoding.decode(ByteBuffer.wrap(encoded)).toString();
		}

// write file
String sOut = "text blah hello world etc.";
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		File f = new File(folder+ name);
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			writer.write( sB);

				if ( writer != null)
					writer.close( );
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307

Updating Android SDK failed: "A folder failed to be moved.” | updating-android-sdk-%e2%80%9ca-folder-failed-to-be-moved-%e2%80%9d


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
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into propriety folders
or
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https://developer.android.com/sdk/index.html?hl=sk
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android - OnClickListener must override a superclass method | android-onclicklistener-must-override-a-superclass-method


The method onClick(DialogInterface, int) of type new DialogInterface.OnClickListener(){} must override a superclass method.

Try this:
Right click on project
Select Properties
In open dialogue select Java compiler
Set Enable project specific settings
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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" />
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    <uses-permission
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        android:name="android.permission.WRITE_SETTINGS" />
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    <uses-permission
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Editace: 2013-12-09 13:11:19
Počet článků v kategorii: 397
Url:draw-rect-android-basic-example

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