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Class File Editor - Source not found - Change Attached Source - Eclipse


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The source attachment does not contain the source for the file TextWatcher.class.
You can change the source attachment by clicking Change Attached Source below:

You have to add JDK src.zip path to dialog as on image below.
[caption id="attachment_1091" align="alignleft" width="282" caption="class file editor source not found Eclipse warning"][/caption]



Or go to Project > Properties > Java Build Path > Libraries
Expand JRE System Library. Expand rt.jar.
Select Source attachment and double click or Edit.
Type path the source code file (External File…) and press OK.

[caption id="attachment_1094" align="alignleft" width="300" caption="Java project build path"][/caption]



Or type path in Java JRE definition



[caption id="attachment_1105" align="alignleft" width="300" caption="Java JRE deifiniton path in Eclipse"][/caption]

How open String.class or others keywords definition with Eclipse.



Now if mouse move about keywords String or F3 on keywords and press button in yellow field will opened String.class
Java Eclipse intellisense




Java-string-class-image

397LW NO topic_id




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Další témata ....(Topics)


133

Draw Rect Android basic example | draw-rect-android-basic-example


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);
		}

	}
}
157

Get Resource ID by Resources String Name Android example | get-resource-id-by-resources-string-name-android-example



// image from res/drawable
	int resID = getResources().getIdentifier("my_image", 
			"drawable", getPackageName());
// view
	int resID = getResources().getIdentifier("my_resource", 
			"id", getPackageName());

// string
	int resID = getResources().getIdentifier("my_string", 
			"string", getPackageName());


348

Cannot resolve symbol HttpGet,HttpClient,HttpResponce in Android Studio | cannot-resolve-symbol-httpgethttpclienthttpresponce-in-android-studio


Try this code:

final String ERROR = "my error message....";

 private class DownloadWebPageTask extends AsyncTask<String, Void, String> {
// some code and method ..... see AsyncTask

       @Override
        protected String doInBackground(String... urls) {

              URL urlL = null;
                try {
                    urlL = new URL(url);//"//chmi.cz..../"
                    HttpURLConnection urlConnection = null;
                    try {
                         urlConnection = (HttpURLConnection) urlL.openConnection();
                        InputStream in = new BufferedInputStream(urlConnection.getInputStream());
                      response =  readStream(in);
                        return response;
                    } catch (IOException e) {
                        //throw new RuntimeException(e);

                    } finally {
                        if(urlConnection != null)
                            urlConnection.disconnect();
                        return ERROR;
                    }
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                    return ERROR;
                }
           }
            return response;
        }

        private String readStream(InputStream is) {
            try {
                ByteArrayOutputStream bo = new ByteArrayOutputStream();
                int i = is.read();
                while(i != -1) {
                    bo.write(i);
                    i = is.read();
                }
                return bo.toString();
            } catch (IOException e) {
                return "";
            }
        }

3

Download file from URL | download-file-from-url


Download image file from URL to ImageView Java Android source example code.



Context context = thisClass.this;
Drawable image = ImageOperations(context,
"//www.okhelp.cz/images/android/ad_4.png"
,"image.jpg");
ImageView imgView;
imgView = (ImageView)findViewById(R.id.idImageView);
imgView.setImageDrawable(image);

	private Drawable ImageOperations(Context ctx, String url, String saveFilename) {
		try {
			InputStream is = (InputStream) this.fetch(url);
			Drawable d = Drawable.createFromStream(is, "src");
			return d;
		} catch (MalformedURLException e) {
			e.printStackTrace();
			return null;
		} catch (IOException e) {
			e.printStackTrace();
			return null;
		}
	}

	public Object fetch(String address) throws MalformedURLException,IOException {
		URL url = new URL(address);
		Object content = url.getContent();
		return content;
	}
148

Crop cropped cut bitmap image pictures Android example | crop-cropped-cut-bitmap-image-pictures-android-example


Cut, shear, clip, snip, crop a bitmap, picture, image Android example

public class ApokusActivity 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);


			// you need to insert a image flower_blue into res/drawable folder
			paint.setFilterBitmap(true);
			Bitmap bitmapOrg = BitmapFactory.decodeResource(getResources(),
					R.drawable.flower_blue);

			Bitmap croppedBmp = Bitmap.createBitmap(bitmapOrg, 0, 0,
					bitmapOrg.getWidth() / 2, bitmapOrg.getHeight());
			int h = bitmapOrg.getHeight();
			canvas.drawBitmap(bitmapOrg, 10, 10, paint);
			canvas.drawBitmap(croppedBmp, 10, 10 + h + 10, paint);

		}

	}
}



crop bitmap android


Editace: 2014-02-15 20:46:40
Počet článků v kategorii: 397
Url:class-file-editor-source-not-found-change-attached-source-eclipse

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