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android - OnClickListener must override a superclass method


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The method onClick(DialogInterface, int) of type new DialogInterface.OnClickListener(){} must override a superclass method.

Try this:
Right click on project
Select Properties
In open dialogue select Java compiler
Set Enable project specific settings
Set Compiler compliance level to 1.6

project-properties-eclipse

java-compiler-settings-eclipse



397LW NO topic_id




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Další témata ....(Topics)


33

Spinner ComboBox DropDown List Android example code | spinner-combobox-dropdown-list-android-code-example


Spinner in Android application is equivalent of ComboBox in WinApi.
Spinner get selected item to string example.
Spinner get selected item position to int example.

Main activity class MainComboBox.java

public class MainComboBox extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        Spinner spinner = (Spinner) findViewById(R.id.spinner);
        ArrayAdapter<CharSequence> adapter = ArrayAdapter.createFromResource(
                this, R.array.countries_array, android.R.layout.simple_spinner_item);
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(adapter);
        spinner.setOnItemSelectedListener(new MyOnItemSelectedListener());

        Button myButton =(Button)findViewById(R.id.button1);
        myButton.setOnClickListener(new Button.OnClickListener() {
            public void onClick(View v) {
            	
            Spinner sp =	(Spinner)findViewById(R.id.spinner);
            String spinnerString = null;
            spinnerString = sp.getSelectedItem().toString();
            int nPos = sp.getSelectedItemPosition();
            
             
                Toast.makeText(getApplicationContext(), "getSelectedItem=" + spinnerString,
                    Toast.LENGTH_LONG).show();
                Toast.makeText(getApplicationContext(), "getSelectedItemPosition=" + nPos,
                		Toast.LENGTH_LONG).show();
            }
        });
    }
}



File MyOnItemSelectedListener.java

public  class MyOnItemSelectedListener implements OnItemSelectedListener {

    public void onItemSelected(AdapterView<?> parent,
        View view, int pos, long id) {
      Toast.makeText(parent.getContext(), "Item is " +
          parent.getItemAtPosition(pos).toString(), Toast.LENGTH_LONG).show();
    }

    public void onNothingSelected(AdapterView parent) {
      // Do nothing.
    }
}


strings.xml

<resources>
    <string name="hello">Hello World, MainComboBox!</string>
    <string name="app_name">ComboBox</string>
    <string name="prompt">Choose a country</string>
    <string-array name="countries_array">
        <item>China</item>
        <item>India</item>
        <item>USA</item>
        <item>Indonesia</item>
        <item>Brazil</item>
        <item>Pakistan</item>
        <item>Nigeria</item>
        <item>Bangladesh</item>
        <item>Russia</item>
    </string-array>    
</resources>


main.xml

<LinearLayout xmlns:android="//schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:padding="10dip"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content">
    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dip"
        android:text="@string/prompt"
    />
    <Spinner 
        android:id="@+id/spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:prompt="@string/prompt"
    />
    <Button android:text="Button" android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>

</LinearLayout>




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
CompoundButton
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
ImageSwitcher
ImageView
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
Menu
MenuInflater
MenuItem
Message
Messenger
MetaKeyKeyListener
MoreAsserts
MotionEvent
MovementMethod
MultiAutoCompleteTextView
NameNotFoundException
NdefMessage
NdefRecord
NfcAdapter
Notification
NotificationManager
OnAccountsUpdateListener
OnBufferingUpdateListener
OnClickListener
OnCompletionListener
OnCheckedChangeListener
OnInitListener
OnItemClickListener
OnItemSelectedListener
OnJetEventListener
OnKeyListener
OnPreparedListener
OnScrollListener
OnSharedPreferenceChangeListener
OnTouchListener
OnVideoSizeChangedListener
OperationApplicationException
OperationCanceledException
Options
PackageInfo
PackageManager
Paint
PaintDrawable
PaintFlagsDrawFilter
Parcel
Parcelable
ParcelFileDescriptor
Path
PendingIntent
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
RemoteViews
ResolveInfo
ResourceCursorAdapter
Resources
Row
ScaleGestureDetector
ScrollingMovementMethod
ScrollView
SearchManager
SearchRecentSuggestions
SearchRecentSuggestionsProvider
SeekBar
Sensor
SensorEvent
SensorEventListener
SensorManager
Service
ServiceConnection
ServiceTestCase
Shader
ShapeDrawable
SharedPreferences
SimpleAdapter
SimpleCursorAdapter
SimpleCursorTreeAdapter
SimpleExpandableListAdapter
Size
SmallTest
SmsManager
SmsMessage
SpannableString
Spanned
SparseArray
SpeechRecognizer
Spinner
SpinnerAdapter
SQLException
SQLiteDatabase
SQLiteOpenHelper
SQLiteQueryBuilder
StatusUpdates
StructuredName
Style
StyleSpan
Surface
SurfaceHolder
SurfaceView
SyncResult
SystemClock
TabActivity
TabHost
TableLayout
TableRow
TabSpec
TestSuiteBuilder
TextSwitcher
TextToSpeech
TextUtils
TextView
TextWatcher
Time
TimePicker
TimePickerDialog
Toast
ToggleButton
Transformation
TranslateAnimation
TypedArray
Typeface
UiThreadTest
Uri
UriMatcher
URLSpan
Vibrator
VideoView
View
ViewFlipper
ViewGroup
ViewParent
ViewSwitcher
Visualizer
WakeLock
WallpaperManager
WallpaperService
WebView
Window
WindowManager
Xfermode
Xml
XmlResourceParser

250

Drawable Bitmap get width height Android | drawable-bitmap-get-width-height-android



		Drawable dr = getResources().getDrawable(R.drawable.algebra);
		int h = dr.getIntrinsicHeight();
		int w = dr.getIntrinsicWidth();

		Bitmap ball = BitmapFactory.decodeResource(getResources(), R.drawable.algebra);
		int _nWidth = ball.getWidth();
		int _nHeight = ball.getHeight();


31

Start Activity from ListView item click Android example | start-activity-from-listview-item-click-android-example


How start certain Activity if user clicked to ListView item
Start Activity from list – launches other activities from list - latest variant!!!!


public class Main extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        try {
        setContentView(R.layout.main);
        
			ListView mlistView = (ListView) findViewById(R.id.idListView);
			mlistView.setAdapter(new ArrayAdapter<String>(this,
			        android.R.layout.simple_list_item_1, 
			        new String[] {"Game", "Help", "Home site"}));
    
        mlistView.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View view,
                int position, long id) {
              // When clicked, show a toast with the TextView text Game, Help, Home
              Toast.makeText(getApplicationContext(), ((TextView) view).getText(),
                  Toast.LENGTH_SHORT).show();
              String sText = ((TextView) view).getText().toString();
              Intent intent = null;
              if(sText.equals("Game"))
              intent = new Intent(getBaseContext(),
						Game.class);
              //else if(sText.equals("Help")) ..........

              if(intent != null)
				startActivity(intent);              
            }
          });
        } catch (Exception e) {
        	// TODO Auto-generated catch block
        	e.printStackTrace();
        }
    
    }
}



Game class Game.java game.xml
You have to add class Game to AndroidManifest.xml

        <activity android:name=".Game" android:label="GameLabel">
        </activity>





package cz.okhelp.listview;

import android.app.Activity;
import android.os.Bundle;

public class Game extends Activity{
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        // you have to create game.xml 
        setContentView(R.layout.game);
    }
}




74

Continue statement Java example | continue-statement-java-example


For and continue statement in Java.

public class MainClass {
	public static void main(String[] arg) {
		String[] arrayOfString = { "Hello", "people", "hello", "world!" };

		for (int i = 0; i < arrayOfString.length; i++){
			if(arrayOfString[i].equals("hello"))
				continue; // skip to for
			System.out.println(arrayOfString[i]);
		}
	}
}
/*
Hello
people
world!
*/


Editace: 2013-12-09 10:14:50
Počet článků v kategorii: 397
Url:android-onclicklistener-must-override-a-superclass-method

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