Okhelp.cz

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

Eclipse Xml Incorrect Line Endings


AD MOB

Incorrect line ending: found carriage return (\r) without corresponding newline (
)

Move mouse cursor on error text and press Ctrl+1
Select Fix line endings and press Enter

See image below:
eclipse-xml-line-ending-error

eclipse-xml-line-ending-error-1

397LW NO topic_id




AD

Další témata ....(Topics)


8

Display screen size resolution density dimension Android | display-screen-dimension


Get display, screen resolution - dimension Android phone development example source code.

 Display display = getWindowManager().getDefaultDisplay();
int nWidth = display.getWidth();
int nHeight = display.getHeight();

          DisplayMetrics metrics = new DisplayMetrics();
            getWindowManager().getDefaultDisplay().getMetrics(metrics);
            //get density per inch for example: 120 , 160 , 240
            mXDpi = metrics.xdpi; // 160 The exact physical pixels per inch of the screen in the X dimension. 
            mYDpi = metrics.ydpi;

// density
int nDensity = metrics.densityDpi; // 160 screen density expressed as dots-per-inch

          float  mMetersToPixelsX = mXDpi / 0.0254f; // 1 inch == 0.0254 metre
          float  mMetersToPixelsY = mYDpi / 0.0254f;
          
// Resolution
// The total number of physical pixels on a screen.
int wPix = metrics.widthPixels; // 320 The absolute width of the display in pixels.
int hPix = metrics.heightPixels; // 480 The absolute height of the display in pixels.
int nWidthDisplay = (wPix < hPix)? wPix : hPix;

float nWidthScreenInInch = wPix / mXDpi; //320 / 160 == 2.0 in inch.
float nHeightScreenInInch = hPix / mYDpi; //480 / 160 == 3.0 in inch.

// for example:
// density 120 per inch
//width 320 pix / 120 dpi == width 2.66 inch
//height 480 pix / 120 dpi == height 4.0 inch 

// density 240 per inch
//width 320 pix / 240 dpi == width 1.33 inch
//height 480 pix / 240 dpi == height 2.0 inch 




Example:
HTC Desire HD
11 (4.3) Diagonal cm (in)
480×800 Resolution
85 (217) ppcm (PPI - Pixels per inch)

480 / 217 = 2.21 inch
800 / 217 = 3.69 inch
Math.sqrt( 2.21*2.21 + 3.69 * 3.69) = 4.3 inch - diagonal

//en.wikipedia.org/wiki/Pixels_per_inch
//en.wikipedia.org/wiki/Dots_per_inch

Typical screen widths:

320dp: a typical phone screen (240x320 ldpi, 320x480 mdpi, 480x800 hdpi, etc).
480dp: a tweener tablet like the Streak (480x800 mdpi).
600dp: a 7” tablet (600x1024 mdpi).
720dp: a 10” tablet (720x1280 mdpi, 800x1280 mdpi, etc).


Emulator skins in the Android SDK
//developer.android.com/guide/practices/screens_support.html









































Low density (120), ldpi

Medium density (160), mdpi

High density (240), hdpi

Extra high density (320), xhdpi

Small screen
QVGA (240x320) 480x640

Normal screen
WQVGA400 (240x400)

WQVGA432 (240x432)
HVGA (320x480) WVGA800 (480x800)

WVGA854 (480x854)

600x1024
640x960

Large screen
WVGA800** (480x800)

WVGA854** (480x854)
WVGA800* (480x800)

WVGA854* (480x854)

600x1024

Extra Large screen
1024x600 WXGA (1280x800)

1024x768
1280x768
1536x1152
1920x1152

1920x1200
2048x1536
2560x1536

2560x1600
* To emulate this configuration, specify a
custom density of 160 when creating an AVD that uses a WVGA800 or WVGA854 skin.

** To emulate this configuration, specify a custom density of 120 when creating an AVD that
uses a WVGA800 or WVGA854 skin.

† This skin is available with the Android 3.0 platform
97

How going life cycle if screen orientation changed Android example | how-going-life-cycle-if-screen-orientation-changed-android-example


onSaveInstanceState, onRestoreInstanceState life cycle if screen orientation changed from log file.

// starts activity
15:27:12.801: INFO/onCreate(1828): onCreate()
15:27:12.811: INFO/onStart(1828): onStart()
15:27:12.821: INFO/onResume(1828): onResume()
// activity is running 

15:27:33.651: DEBUG/dalvikvm(307): GC_EXPLICIT freed 186K, 53% 
free 2770K/5831K, external 981K/1038K, paused 99ms

// change emulator state Ctrl+F11 landscape, portrait
15:27:40.427: INFO/ActivityManager(74): Config changed: 
{ scale=1.0 imsi=310/260 loc=en_US touch=3 keys=2/1/2 nav=3/1 orien=2 layout=18 uiMode=17 seq=64}

// saved all variable values if need
15:27:40.581: INFO/onSaveInstanceState(1828): onSaveInstanceState()

15:27:40.602: INFO/onPause(1828): onPause()
15:27:40.612: INFO/onStop(1828): onStop()
15:27:40.631: INFO/onDestroy(1828): onDestroy()

// activity goes back to onCreate !!!!!!!!!
15:27:40.692: INFO/onCreate(1828): onCreate()
15:27:40.701: INFO/onStart(1828): onStart()

// restore all saved values of variables 
15:27:40.711: INFO/onRestoreInstanceState(1828): onRestoreInstanceState()
// you can using saved values by onSaveInstanceState() in onResume
15:27:40.721: INFO/onResume(1828): onResume()




Diagram of life cycle onSaveInstanceState, onRestoreInstanceState

[caption id="attachment_1169" align="alignleft" width="229" caption="Life cycle onRestoreInstanceState"]life_cycle_onRestoreInstanceState[/caption]
200

Samsung i9250 Galaxy Nexus | samsung-i9250-galaxy-nexus






























Brand Samsung
Model (codename) i9250 Galaxy Nexus
Cena, včetně DPH 9000
Veikost Displaye v palcích 4.65
Display-resolution 1280x720
Dotek-typ kapacitní
CPU typ
CPU MHz 1200
CPU core 2
L2 cache
RAM 1 GB
ROM 16 - 32 GB
GPU TI OMAP 4460 1,2 GHz dual-core
NenaMark2 Benchmark
GPU-GLBenchmark
Baterie mAh 1750
Foto MPx 5
Autofocus yes
Video 480p - 30 frames/s
Official Android ICS Android 4.0 Ice Cream Sandwich
CyanogenMod support
Dotek-prstů-max
Display-ppi
Display-retina
Network GSM&EDGE: 850 / 900 / 1.800 / 1.900
Connectivity
Pozn.


samsung-i9250-galaxy-nexus image
samsung-i9250-galaxy-nexus
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
17

double in Java example for Android development | double-in-java-example-for-android-development


Java double is 64 bit double precision type used when fractional
precision calculation is required.

Java double je datový typ (reálné číslo) o velikosti 64 bitů. Používá se například pro přesný výsledek po dělení za desetinnou tečkou. Pokud nepotřebuje tak veliké číslo použijte raději typ float, šetříte tím paměť mobilního telefonu.


		// declaration and assignment of value  type double
		double x = 18.41785;
		//print formated  value
		System.out.printf("The value of x is %.3f%n", x); // 18.418
                
                // declaring more variables in single statement
                double d1 = 12.4, d2 = 564.5, d3 = 14.589;

		// double range of value
		System.out.println(Double.MIN_VALUE); // 4.9E-324
		System.out.println(Double.MAX_VALUE); // 1.7976931348623157E308

		// is NaN  Not-a-Number
		double f = (double) Math.sqrt(-15);
		boolean bNaN = Double.isNaN(f);
		System.out.print(bNaN); // true
		
                // check if a string is a valid number in Java example
                // convert string to double Java example
		String sD = "12.8";
		double dParse = Double.parseDouble(sD);

	       // convert strings to numbers
	      String sDl = "15.48";
	      double dFromString = (Double.valueOf(sDl)).doubleValue();

// format double, float or long value to string
	DecimalFormat formatter = new DecimalFormat(".##");
	String s = formatter.format(-.5678);             // -0.57
// .###  -0.568
// .#### -0.5678
// .000000  -.567800

// -123.456
// .##  -123.46
// #.##  -123.46

// #E0  -.1E3
// ##E0  -1.2E2
//###E0  -123E0

// double to string in Java example code
Double dObj = new Double(68.5);
String str = dObj.toString();
// else 
Double dS = 11.6;
String sdouble = dS.toString();

// compare two double variables
	      Double dComp1 = 4.3;
	      if(dComp1.equals(4.3))
	  		System.out.print("true");

	// compares the two specified double values in Java example
	// int i =	compare(double d1, double d2);
	    int i =	Double.compare(11.5, 11.7); // -1 first < second
	    // 0 first == second
	    // 1 first > second
	    System.out.print(i);




Editace: 2014-02-15 20:28:16
Počet článků v kategorii: 397
Url:eclipse-xml-incorrect-line-endings

AD
11 Share
Share
Tweet