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Get the color of a specific pixel Java Android example

             ImputStream      is = this.getResources().openRawResource(R.drawable.colors);
             Bitmap    mBitmap2 = BitmapFactory.decodeStream(is);
         int  w = mBitmap2.getWidth();
         int  h = mBitmap2.getHeight();
//  int x , y have to be smaller as w , h 
         int _color =  mBitmap2.getPixel(x, y);

397LW NO topic_id

Další témata ....(Topics)


Statistics usability of mobile phones with Android - September 2011 | statistics-usability-of-mobile-phones-with-android-september-2011

(Our software)

1Samsung Galaxy S213.8% (1,232)
2Samsung Galaxy S8.5% (762)
3Samsung Galaxy Tab7.4% (659)
4Samsung Galaxy Mini5.4% (483)
5Samsung Galaxy S4.0% (356)
6HTC Desire HD3.8% (341)
7Samsung Galaxy Ace3.8% (339)
8HTC Wildfire3.2% (286)
9Samsung Galaxy Fit3.1% (274)
10SEMC Xperia X102.1% (190)

No USB devices or running detected | no-usb-devices-or-running-detected


  • is sett debug mode on device?

  • enabled debugging over USB?

  • is device right connected?

  • have you downloaded and instaled drivers for your device on PC?

  • For Windows //developer.android.com/sdk/win-usb.html

  • try disconnect and connect USB cable

  • try do restart Android Studio


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,
ImageView imgView;
imgView = (ImageView)findViewById(R.id.idImageView);

	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) {
			return null;
		} catch (IOException e) {
			return null;

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

Call requires API level xx current min is xx android | call-requires-api-level-xx-current-min-is-xx-android

Call requires API level 16 (current min is 4): android
Change The SDK version in AndroidManifest.xml to higher

<uses-sdk android:minSdkVersion="4" />
<uses-sdk android:minSdkVersion="8" />

Whittled superscript sup tag TextView Android issue | whittled-superscript-sup-tag-textview-android-issue

Issue: Cropped superscript index between tags sup /sup is not correctly visible in TextView or View as Button.

String s = "10<sup>12 </sup>";
textView.setText(Html.fromHtml(s)); // 12 will cropped 
// solution:
s = "10<sup>12 </sup>\t	"; // add behind ending of sup tag the tabulator \t, 
// but not char \t but only press to TAB key!!! in source code
textView.setText(Html.fromHtml(s)); // 12 is visible correctly


Editace: 2013-12-09 13:06:02
Počet článků v kategorii: 397