Okhelp.cz

Recepty, články, nápady, programování. Dříve dum-zahrada, finance, internet a know-how.okhelp.cz Pro lepší výsledky hledání používejte i diakritiku.

Continue statement Java example


AD MOB

For and continue statement in Java.

public class MainClass {
	public static void main(String[] arg) {
		String[] arrayOfString = { "Hello", "people", "hello", "world!" };

		for (int i = 0; i < arrayOfString.length; i++){
			if(arrayOfString[i].equals("hello"))
				continue; // skip to for
			System.out.println(arrayOfString[i]);
		}
	}
}
/*
Hello
people
world!
*/

397LW NO topic_id




AD

Další témata ....(Topics)


132

Draw circle Android basic example | draw-circle-android-basic-example


Canvas, drawCircle(), Paint, onDraw(), 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.drawCircle(50, 50, 30, p);
		}

	}
}

139

drawBitmap createBitmap by array of colours Android example | drawbitmap-createbitmap-draw-bitmap-by-array-of-colours-android-example


public static Bitmap createBitmap (int[] colors, int offset, int stride, int width, int height, Bitmap.Config config)
public void drawBitmap (Bitmap bitmap, float left, float top, Paint paint)

//  //www.apache.org/licenses/LICENSE-2.0
public class MainActivity extends Activity {
	    private static final int WIDTH = 50;
	    private static final int HEIGHT = 50;
	    private static final int STRIDE = 64;   // must be >= WIDTH
	    
	    private static int[] createColors() {
	        int[] colors = new int[STRIDE * HEIGHT];
	        for (int y = 0; y < HEIGHT; y++) {
	            for (int x = 0; x < WIDTH; x++) {
	                int r = x * 255 / (WIDTH - 1);
	                int g = y * 255 / (HEIGHT - 1);
	                int b = 255 - Math.min(r, g);
	                int a = Math.max(r, g);
	                colors[y * STRIDE + x] = (a << 24) | (r << 16) | (g << 8) | b;
	            }
	        }
	        return colors;
	    }
	
	@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.GREEN);

            int[] mColors = createColors();
            int[] colors = mColors;

           
            Bitmap bitmap = Bitmap.createBitmap(colors, 0, STRIDE, WIDTH, HEIGHT,
                    Bitmap.Config.RGB_565);
                      
			canvas.drawBitmap(bitmap, 50,20, paint); 
		}

	}
}


340

Android Studio hide delete import module | android-studio-hide-delete-import-module


Hide module - open dialog: File > Project Structure Ctrl + Alt + Shift + S
android-studio-hide-module.jpg

Hide module: in opened Dialog select module which will hidden and click on minus (left upper corner)

android-studio-hide-module-from-project-explorer.jpg

If module is hidden, you can permanetly delete module from disk. But if you want using module in future,  copy module into other folder (not into AndroidProjects folder and his subbfolders) and delete module permanetly from project and disc. Right mouse click on module and select from menu Delete.
android-studio-delete-module-from-disc.jpg

If you want import the backup copy to project, use: File>New>Import mudule
android-studio-import-module.jpg
364

Center View in RelativeLayout Android | center-view-in-relativelayout-android


RelativeLayout like parent, child Srollview is centered horizontal.
Second RelativeLayout in SrollView have gravity center, every child will centered horizontally and vertically.


<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:layout_width="match_parent" android:layout_height="match_parent"
    android:gravity="center_horizontal">

    <ScrollView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/scrollView2" >

        <RelativeLayout
            android:layout_width="320dp"
            android:layout_height="wrap_content"
            android:background="#e6f825"
            android:gravity="center">

            <Button
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="New Button"
                android:id="@+id/button" />
        </RelativeLayout>
    </ScrollView>

</RelativeLayout>
59

Relative layout RelativeLayout Android example | relative-layout-relativelayout-android-example


xml RelativeLayout Android example:

Eclipse graphical xml layout editor
[caption id="attachment_896" align="alignleft" width="261" caption="Relativelayout Eclipse graphical editor"]relativelayout-graphical-editor-eclipse[/caption]


res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">
    <TextView
        android:id="@+id/idLabel"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="Enter word"/>
    <EditText
        android:id="@+id/idEntry"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:background="@android:drawable/editbox_background"
        android:layout_below="@id/idLabel"/>
    <Button
        android:id="@+id/idOk"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/idEntry"
        android:layout_alignParentRight="true"
        android:layout_marginLeft="10dip"
        android:text="OK" />
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toLeftOf="@id/idOk"
        android:layout_alignTop="@id/idOk"
        android:text="Cancel" />
</RelativeLayout>


Editace: 2011-10-04 08:57:55
Počet článků v kategorii: 397
Url:continue-statement-java-example

AD
11 Share
Share
Tweet