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Create array of strings in xml file Android example


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Example source code for Android developers how create array of strings in *.xml file.
You can using array of strings in Spinner ( combobox - dropdown list ) or ListView etc.

<resources>
    <string-array name="colors">
        <item>red</item>
        <item>orange</item>
        <item>yellow</item>
        <item>green</item>
        <item>blue</item>
    </string-array>
</resources>

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Další témata ....(Topics)


302

Layout not found on Android 2.1 | layout-not-found-on-android-2-1


If I create own folder layout-w320dp with Eclipse Android 4.4
layout was correctly loaded.
If I trying this application on tablet with Android 2.1 application crashed.


layout-not-loaded-android-2-1
365

layout-sw600dp values-sw600dp Android example of use | layout-sw600dp-values-sw600dp-android-example-of-use


Why the app selects data from basic layout folder if smallest width is higher then the number in folder name?
Example 1
layout-sw600dp values-sw600dp (smallest width sw for data usage from this folder is 600dp density independent pixel!!!!!)
Device screen resolution is 1200 x 900 px (pixel) Wow, app to be select data from sw600dp folder! Realy?
DPI of device screen - dot per inch (pixel per inch) is 480 pixel it is wery important number!


  1. App selects smallest dimension of screen. In our case 900 px
    Medium screen have 160 dpi (The density-independent pixel is equivalent to one physical pixel on a 160 dpi screen, which is the baseline density assumed by the system for a "medium" density screen.).


  2. App calculate ratio 480 / 160 = 3 (The conversion of dp units to screen pixels: px = dp * (dpi / 160))


  3. App calculate smallest dimesnion of screen in dp 900 / 3 = 300 dip or dp (density independed pixel).


  4. App selects data from basic values and layout folder because sw600dp is greater than 300dp.





In our case smallest dimension of screen must be at least 1800 real - physical pixels (1800 px / 3 ratio(dpi/160) = 600 dp (dip density independend pixels) to be used data from folders values-sw600dp and layout-sw600dp.


Example 2 see Example 1 abouve
Device: Nexus 7 (2012) selected from Android Studio tool layout editor
Resolution: 800x1280 px
DPI: tvdpi (approximately 213dpi)
Ratio: 1.33 (213 / 160)
Smallest width in px: 800
Convert px to dp: 601.5 (800 / 1.33)
Result:Smallest width is 601.5dp The App to be used data from folders values-sw600dp and layout-sw600dp.
172

Android Samples | android-samples











AbsListView
AbstractAccountAuthenticator
AbstractThreadedSyncAdapter
AccelerateInterpolator
AccessibilityEvent
AccessibilityService
AccessibilityServiceInfo
Account
AccountAuthenticatorActivity
AccountAuthenticatorResponse
AccountManager
Activity
ActivityInfo
ActivityInstrumentationTestCase2
ActivityManager
ActivityUnitTestCase
AdapterContextMenuInfo
AdapterView
AlarmManager
AlertDialog
AlphaAnimation
AndroidTestCase
Animation
AnimationSet
AnimationUtils
Application
ApplicationTestCase
AppWidgetManager
AppWidgetProvider
ArrayAdapter
AssetFileDescriptor
AsyncTask
AttributeSet
AudioManager
AuthenticatorDescription
AuthenticatorException
AutoCompleteTextView
BackupAgent
BackupAgentHelper
BackupDataInput
BackupDataOutput
BackupManager
BaseAdapter
BaseColumns
BaseExpandableListAdapter
Binder
Bitmap
BitmapDrawable
BitmapFactory
BitmapShader
BluetoothAdapter
BluetoothDevice
BluetoothServerSocket
BluetoothSocket
BroadcastReceiver
Build
Bundle
Button
Callback
Camera
CameraInfo
Canvas
Color
ColorFilter
CompletionInfo
ComponentName
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ConditionVariable
Config
ConfigurationInfo
Contacts
ContactsContract
ContentProvider
ContentProviderClient
ContentProviderOperation
ContentResolver
ContentUris
ContentValues
Context
ContextMenu
ContextMenuInfo
Cursor
CursorAdapter
Data
DatePicker
DatePickerDialog
DecelerateInterpolator
DeviceAdminReceiver
DevicePolicyManager
Dialog
DialogInterface
Display
DisplayMetrics
Drawable
Editable
EditorInfo
EditText
EditTextPreference
Email
Environment
Equalizer
ETC1Util
ExpandableListActivity
ExpandableListAdapter
ExpandableListContextMenuInfo
ExpandableListView
FileBackupHelper
FillType
Filterable
FloatMath
FocusFinder
FormatException
Gallery
Gesture
GestureDetector
GestureLibraries
GestureLibrary
GestureOverlayView
GLES10
GLES20
GLSurfaceView
GLU
GLUtils
Gravity
GridView
Handler
HandlerThread
Html
CharArrayBuffer
CheckBox
CheckBoxPreference
Chronometer
IBinder
Im
ImageButton
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InputConnection
InputMethodManager
InputMethodService
Instrumentation
Intent
IntentFilter
JetPlayer
Key
Keyboard
KeyboardView
KeyEvent
KeyCharacterMap
LayoutAnimationController
LayoutInflater
LayoutParams
LinearLayout
LinkMovementMethod
ListActivity

ListAdapter
ListPreference
ListView
LiveFolders
Log
Looper
Matrix
MediaController
MediaPlayer
MediaScannerConnection
MediumTest
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MenuInflater
MenuItem
Message
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OnAccountsUpdateListener
OnBufferingUpdateListener
OnClickListener
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OnCheckedChangeListener
OnInitListener
OnItemClickListener
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OnJetEventListener
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OnSharedPreferenceChangeListener
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OperationApplicationException
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Options
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Path
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People
Phone
Phones
Picture
PictureDrawable
PixelFormat
PorterDuff
PorterDuffXfermode
PowerManager
Preference
PreferenceActivity
PreferenceCategory
PreferenceManager
PreferenceScreen
Process
ProgressBar
ProgressDialog
QuickContactBadge
RadioButton
RadioGroup
RatingBar
RawContacts
RecognitionService
RecognizerIntent
Rect
RectF
RelativeLayout
RemoteCallbackList
RemoteException
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ResolveInfo
ResourceCursorAdapter
Resources
Row
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ServiceTestCase
Shader
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SharedPreferences
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SimpleCursorAdapter
SimpleCursorTreeAdapter
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Size
SmallTest
SmsManager
SmsMessage
SpannableString
Spanned
SparseArray
SpeechRecognizer
Spinner
SpinnerAdapter
SQLException
SQLiteDatabase
SQLiteOpenHelper
SQLiteQueryBuilder
StatusUpdates
StructuredName
Style
StyleSpan
Surface
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SystemClock
TabActivity
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TextView
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TypedArray
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UiThreadTest
Uri
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URLSpan
Vibrator
VideoView
View
ViewFlipper
ViewGroup
ViewParent
ViewSwitcher
Visualizer
WakeLock
WallpaperManager
WallpaperService
WebView
Window
WindowManager
Xfermode
Xml
XmlResourceParser

318

Admob ad not visible on Android Emulator | admob-ad-not-visible-on-android-emulator


Try this solution:
  				
AdView adView = new AdView(getApplicationContext());//in menu inflater getActivity()
adView.setAdUnitId("ca-app-pub-87***yourNumber");
adView.setAdSize(AdSize.BANNER); 					
LinearLayout linLay = (LinearLayout)findViewById(R.id.idReklamaLayout);
// Add the adView to it
linLay.addView(adView);
// Initiate a generic request to load it with an ad
if(Build.MANUFACTURER.equals("unknown")) {
// Emulator
AdRequest.Builder.addTestDevice("B3EEABB8EE11C2BE770B684D95219ECB"); // to get test ads on this device.
AdRequest adRequest = new AdRequest.Builder()
 .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)        // All emulators
 .addTestDevice("B3EEABB8EE11C2BE770B684D95219ECB")  // Emulator id you will get in the LogCat verbose
 .build();
			
adView.loadAd(adRequest);
	  			/* */
}else {
 // Not Emulator
// Initiate a generic request to load it with an ad
AdRequest adRequest = new AdRequest.Builder().build();   
adView.loadAd(adRequest);/**/
}


334

Android Studio Delete Hide Module | android-studio-delete-hide-module


To hide a module File->Project Structure Ctrl+Alt+Shift+S
In left panel click on Module which want to hide.
Click on minus symbol (-) on upper left corner of window.
Click Yes.

To delete module from disk click on module in project tree (to select) and press Delete on keyboard.


Editace: 2013-12-09 10:55:08
Počet článků v kategorii: 397
Url:create-array-of-strings-in-xml-file-android-example

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