Okhelp.cz

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

Eclipse Escape text when pasting into a string literal




Window>Preference>Java>Editor>Typing and check the "Escape text when pasting into a string literal".

397LW NO topic_id



Další témata ....(Topics)


145

Compressing converting a bitmap to PNG format Android example | compressing-converting-a-bitmap-to-png-format-android-example



public class MainActivity extends Activity {
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(new SampleView(this));
	}

	private static Bitmap codec(Bitmap src, Bitmap.CompressFormat format,
			int quality) {
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		src.compress(format, quality, os);

		byte[] array = os.toByteArray();
		return BitmapFactory.decodeByteArray(array, 0, array.length);
	}

	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 bmp = BitmapFactory.decodeResource(getResources(), R.drawable.flower_blue);
             
			Bitmap bPNGcompress = codec(bmp, Bitmap.CompressFormat.PNG, 0);

		   int h = bmp.getHeight();
           
           canvas.drawBitmap(bmp, 10,10, paint);
           canvas.drawBitmap(bPNGcompress, 10,10 + h + 10, paint);
           
		}

	}
}

151

Bitmap Canvas Color Gradient linear radial sweep rounded corner Android example | bitmap-canvas-color-gradient-linear-radial-sweep-rounded-corner-android-example



public class MainActivity extends Activity {
//  //www.apache.org/licenses/LICENSE-2.0
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(new SampleView(this));
	}

	   private static class SampleView extends View {
	        private Rect    mRect;
	        private GradientDrawable mDrawable;

	        public SampleView(Context context) {
	            super(context);
	            setFocusable(true);

	            mRect = new Rect(0, 0, 220, 120);
	      
/*	            GradientDrawable.Orientation  BL_TR  draw the gradient from the bottom-left to the top-right   
	              BOTTOM_TOP  draw the gradient from the bottom to the top   
	              BR_TL  draw the gradient from the bottom-right to the top-left   
	              LEFT_RIGHT  draw the gradient from the left to the right   
	              RIGHT_LEFT  draw the gradient from the right to the left   
	              TL_BR  draw the gradient from the top-left to the bottom-right   
	              TOP_BOTTOM  draw the gradient from the top to the bottom   
	              TR_BL  draw the gradient from the top-right to the bottom-left   
*/
	            
	            mDrawable = new GradientDrawable(GradientDrawable.Orientation.LEFT_RIGHT,
	                                             new int[] { 0xFFFF0000, 0xFF00FF00,
	                                                 0xFF0000FF });
	            mDrawable.setShape(GradientDrawable.RECTANGLE);
	            mDrawable.setGradientRadius((float)(Math.sqrt(2) * 60));
	        }
	        
	        static void setCornerRadius(GradientDrawable drawable, float r0,
	                                   float r1, float r2, float r3) {
/*	        	setCornerRadii
	        	Specify radii for each of the 4 corners. For each corner, 
	        	the array contains 2 values, [X_radius, Y_radius]. 
	        	The corners are ordered top-left, top-right, bottom-right, 
	        	bottom-left 
*/
	            drawable.setCornerRadii(new float[] { r0, r0, r1, r1,
	                                                  r2, r2, r3, r3 });
	        }
	        
	        @Override protected void onDraw(Canvas canvas) {
	            
	            mDrawable.setBounds(mRect);

	            float r = 35;
	            
	            canvas.save();
	            canvas.translate(10, 10);
	            mDrawable.setGradientType(GradientDrawable.LINEAR_GRADIENT);
	            setCornerRadius(mDrawable, r, r, 0, 0);
	            mDrawable.draw(canvas);
	            canvas.restore();
	            
	            canvas.translate(0, mRect.height() + 10);
	            canvas.save();
	            canvas.translate(10, 10);
	            mDrawable.setGradientType(GradientDrawable.RADIAL_GRADIENT);
	            setCornerRadius(mDrawable, 0, 0, r, r);
	            mDrawable.draw(canvas);
	            canvas.restore();
	            
	            canvas.translate(0, mRect.height() + 10);
	            canvas.save();
	            canvas.translate(10, 10);
	            mDrawable.setGradientType(GradientDrawable.SWEEP_GRADIENT);
	            setCornerRadius(mDrawable, 0, r, r, 0);
	            mDrawable.draw(canvas);
	            canvas.restore();
	            
	            
	        }
	    }
	}


gradient-bitmap-rounded
103

Android RadioGroup alignment like TableLayout | android-radiogroup-alignment-like-tablelayout


xml example source code with image.


   <TableLayout android:layout_width="match_parent" android:id="@+id/idTableInRadioGroup" android:layout_height="wrap_content">
        <TableRow android:id="@+id/tableRow1" android:layout_width="wrap_content" android:layout_height="wrap_content">


<RadioGroup android:id="@+id/idRadio_group_1_column"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:orientation="vertical">
 <RadioButton android:id="@+id/idRadio_1"
                android:text="@string/textLabel_1"/>
            <RadioButton android:id="@+id/idRadio_2"
                android:text="@string/textLabel_2"/>
            <RadioButton android:id="@+id/idRadio_3"
                android:text="@string/textLabel_3"/> 
 
        </RadioGroup>
<RadioGroup android:id="@+id/idRadio_group_2_column"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginLeft="20dp"
            android:orientation="vertical">
 
  <RadioButton android:id="@+id/idRadio_4"
                android:text="@string/textLabel_4"/>
            <RadioButton android:id="@+id/idRadio_5"
                android:text="@string/textLabel_5"/>
            <RadioButton android:id="@+id/idRadio_6"
                android:text="@string/textLabel_6"/>
        </RadioGroup>
</TableRow>        
    </TableLayout>



two-column-radiogroup-menu
89

Map TreeMap get key by value Java Android example | map-treemap-get-key-by-value-java-android-example


Get key by value from Map Java Android example


MainClass.java

import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TreeMap;

public class MainClass {
	public static void main(String[] arg) {

		// english;germany dictionary
		String[] arrayOfString = { "one;eine", "two;zwei", "two sets of;zwei"
				, "three;drei", "four;vier" };

		Map<String, String> map = new TreeMap<String, String>();

		for (String s : arrayOfString) {
			String[] array = s.split(";");
			String sKey = "", sValue = "";
			if (array.length > 1) {
				sKey = array[0];
				sValue = array[1];
				map.put(sKey, sValue);
			}
		}

		if (map.containsValue("zwei")) {
			Set<String> references = getKeysByValue(map, "zwei");
			 Iterator<String> it = references.iterator();
			    while (it.hasNext()) {
			      String key = (String) it.next();
			      String value = map.get(key);
			      System.out.println(key + " = " + value);
			    }
		}

	}

	public static <T, E> Set<T> getKeysByValue(Map<T, E> map, E value) {
		Set<T> keys = new HashSet<T>();
		for (Entry<T, E> entry : map.entrySet()) {
			if (entry.getValue().equals(value)) {
				keys.add(entry.getKey());
			}
		}
		return keys;
	}
}
/*
two = zwei
two sets of = zwei
 */

384

Convert Activity to Fragment Step by Step | convert-activity-to-fragment-step-by-step


public class Main extends Activity {

private TextView mTextView;
private Activity mAct;
private Intent mIntent;

protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main_layout);
  mTextView = findViewById(R.id.mTextView);
  mAct = getActivity();
  mIntent = getIntent();
 }

}


to:
public class Main extends Fragment{

 private TextView mTextView;
 private FragmentActivity mFrgAct;
 private Intent mIntent;
 private LinearLayout mLinearLayout;
 public View onCreateView(LayoutInflater inflater, ViewGroup container,
          Bundle savedInstanceState) {
          View root = inflater.inflate(R.layout.fragment_main, null);
        return root;
    }

 public void onViewCreated(View view, Bundle savedInstanceState) {
          // you can add listener of elements here
          /*Button mButton = (Button) view.findViewById(R.id.button);
            mButton.setOnClickListener(this); */
          mTextView = view.findViewById(R.id.mTextView);
          mLinearLayout = (LinearLayout)view;
 }
 public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
          mFrgAct = getActivity();
          mIntent = mFrgAct.getIntent(); //  Intent intent = new Intent(getActivity().getIntent());
 }

}





Editace Jana Žákovská : 2014-02-15 20:13:43
Počet článků v kategorii: 397
Url:eclipse-escape-text-when-pasting-into-a-string-literal
Share
Share
Tweet