Class MyContextsExample

  • All Implemented Interfaces:
    android.content.ComponentCallbacks, android.content.ComponentCallbacks2, android.view.KeyEvent.Callback, android.view.LayoutInflater.Factory, android.view.LayoutInflater.Factory2, android.view.View.OnCreateContextMenuListener, android.view.Window.Callback, androidx.activity.contextaware.ContextAware, androidx.activity.OnBackPressedDispatcherOwner, androidx.activity.result.ActivityResultCaller, androidx.activity.result.ActivityResultRegistryOwner, androidx.appcompat.app.ActionBarDrawerToggle.DelegateProvider, androidx.appcompat.app.AppCompatCallback, androidx.core.app.ActivityCompat.OnRequestPermissionsResultCallback, androidx.core.app.ActivityCompat.RequestPermissionsRequestCodeValidator, androidx.core.app.TaskStackBuilder.SupportParentable, androidx.core.view.KeyEventDispatcher.Component, androidx.lifecycle.HasDefaultViewModelProviderFactory, androidx.lifecycle.LifecycleOwner, androidx.lifecycle.ViewModelStoreOwner, androidx.savedstate.SavedStateRegistryOwner

    public class MyContextsExample
    extends androidx.appcompat.app.AppCompatActivity
    "My contexts" example. For example, creates location-based contexts and activity contexts to show their status in a view. See context and sensor type implementations:
    See Also:
    LocationContext, LocationSensor, ActivityContext, ActivitySensor
    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.util.ArrayList<Context> mMyContexts  
      • Fields inherited from class android.app.Activity

        DEFAULT_KEYS_DIALER, DEFAULT_KEYS_DISABLE, DEFAULT_KEYS_SEARCH_GLOBAL, DEFAULT_KEYS_SEARCH_LOCAL, DEFAULT_KEYS_SHORTCUT, FOCUSED_STATE_SET, RESULT_CANCELED, RESULT_FIRST_USER, RESULT_OK
      • Fields inherited from class android.content.Context

        ACCESSIBILITY_SERVICE, ACCOUNT_SERVICE, ACTIVITY_SERVICE, ALARM_SERVICE, APP_OPS_SERVICE, APPWIDGET_SERVICE, AUDIO_SERVICE, BATTERY_SERVICE, BIND_ABOVE_CLIENT, BIND_ADJUST_WITH_ACTIVITY, BIND_ALLOW_OOM_MANAGEMENT, BIND_AUTO_CREATE, BIND_DEBUG_UNBIND, BIND_EXTERNAL_SERVICE, BIND_IMPORTANT, BIND_INCLUDE_CAPABILITIES, BIND_NOT_FOREGROUND, BIND_NOT_PERCEPTIBLE, BIND_WAIVE_PRIORITY, BIOMETRIC_SERVICE, BLOB_STORE_SERVICE, BLUETOOTH_SERVICE, CAMERA_SERVICE, CAPTIONING_SERVICE, CARRIER_CONFIG_SERVICE, CLIPBOARD_SERVICE, COMPANION_DEVICE_SERVICE, CONNECTIVITY_DIAGNOSTICS_SERVICE, CONNECTIVITY_SERVICE, CONSUMER_IR_SERVICE, CONTEXT_IGNORE_SECURITY, CONTEXT_INCLUDE_CODE, CONTEXT_RESTRICTED, CROSS_PROFILE_APPS_SERVICE, DEVICE_POLICY_SERVICE, DISPLAY_SERVICE, DOWNLOAD_SERVICE, DROPBOX_SERVICE, EUICC_SERVICE, FILE_INTEGRITY_SERVICE, FINGERPRINT_SERVICE, HARDWARE_PROPERTIES_SERVICE, INPUT_METHOD_SERVICE, INPUT_SERVICE, IPSEC_SERVICE, JOB_SCHEDULER_SERVICE, KEYGUARD_SERVICE, LAUNCHER_APPS_SERVICE, LAYOUT_INFLATER_SERVICE, LOCATION_SERVICE, MEDIA_PROJECTION_SERVICE, MEDIA_ROUTER_SERVICE, MEDIA_SESSION_SERVICE, MIDI_SERVICE, MODE_APPEND, MODE_ENABLE_WRITE_AHEAD_LOGGING, MODE_NO_LOCALIZED_COLLATORS, MODE_PRIVATE, NETWORK_STATS_SERVICE, NFC_SERVICE, NOTIFICATION_SERVICE, NSD_SERVICE, POWER_SERVICE, PRINT_SERVICE, RECEIVER_VISIBLE_TO_INSTANT_APPS, RESTRICTIONS_SERVICE, ROLE_SERVICE, SEARCH_SERVICE, SENSOR_SERVICE, SHORTCUT_SERVICE, STORAGE_SERVICE, STORAGE_STATS_SERVICE, SYSTEM_HEALTH_SERVICE, TELECOM_SERVICE, TELEPHONY_IMS_SERVICE, TELEPHONY_SERVICE, TELEPHONY_SUBSCRIPTION_SERVICE, TEXT_CLASSIFICATION_SERVICE, TEXT_SERVICES_MANAGER_SERVICE, TV_INPUT_SERVICE, UI_MODE_SERVICE, USAGE_STATS_SERVICE, USB_SERVICE, USER_SERVICE, VIBRATOR_SERVICE, VPN_MANAGEMENT_SERVICE, WALLPAPER_SERVICE, WIFI_AWARE_SERVICE, WIFI_P2P_SERVICE, WIFI_RTT_RANGING_SERVICE, WIFI_SERVICE, WINDOW_SERVICE
      • Fields inherited from interface android.content.ComponentCallbacks2

        TRIM_MEMORY_BACKGROUND, TRIM_MEMORY_COMPLETE, TRIM_MEMORY_MODERATE, TRIM_MEMORY_RUNNING_CRITICAL, TRIM_MEMORY_RUNNING_LOW, TRIM_MEMORY_RUNNING_MODERATE, TRIM_MEMORY_UI_HIDDEN
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void onCreate​(android.os.Bundle savedInstanceState)  
      boolean onCreateOptionsMenu​(android.view.Menu menu)  
      protected void onDestroy()  
      boolean onOptionsItemSelected​(android.view.MenuItem item)  
      void onRequestPermissionsResult​(int requestCode, java.lang.String[] permissions, int[] grantResults)
      Callback received when a permissions request has been completed.
      void startUpdatesButtonHandler​(android.view.View view)
      Handles the Start Context Updates button
      void stopUpdatesButtonHandler​(android.view.View view)
      Handles the Stop Context Updates button, stop location updates
      • Methods inherited from class androidx.appcompat.app.AppCompatActivity

        addContentView, attachBaseContext, closeOptionsMenu, dispatchKeyEvent, findViewById, getDelegate, getDrawerToggleDelegate, getMenuInflater, getResources, getSupportActionBar, getSupportParentActivityIntent, invalidateOptionsMenu, onConfigurationChanged, onContentChanged, onCreateSupportNavigateUpTaskStack, onKeyDown, onMenuItemSelected, onMenuOpened, onNightModeChanged, onPanelClosed, onPostCreate, onPostResume, onPrepareSupportNavigateUpTaskStack, onStart, onStop, onSupportActionModeFinished, onSupportActionModeStarted, onSupportNavigateUp, onTitleChanged, onWindowStartingSupportActionMode, openOptionsMenu, setContentView, setContentView, setContentView, setSupportActionBar, setTheme, startSupportActionMode, supportInvalidateOptionsMenu, supportNavigateUpTo, supportRequestWindowFeature, supportShouldUpRecreateTask
      • Methods inherited from class androidx.fragment.app.FragmentActivity

        dump, getSupportFragmentManager, onActivityResult, onCreatePanelMenu, onCreateView, onCreateView, onLowMemory, onMultiWindowModeChanged, onNewIntent, onPause, onPictureInPictureModeChanged, onPreparePanel, onResume, onResumeFragments, onStateNotSaved, setEnterSharedElementCallback, setExitSharedElementCallback, startActivityFromFragment, startActivityFromFragment, supportFinishAfterTransition, supportPostponeEnterTransition, supportStartPostponedEnterTransition
      • Methods inherited from class androidx.activity.ComponentActivity

        addOnContextAvailableListener, getActivityResultRegistry, getDefaultViewModelProviderFactory, getLifecycle, getOnBackPressedDispatcher, getSavedStateRegistry, getViewModelStore, onBackPressed, onRetainNonConfigurationInstance, onSaveInstanceState, peekAvailableContext, registerForActivityResult, registerForActivityResult, removeOnContextAvailableListener, reportFullyDrawn
      • Methods inherited from class androidx.core.app.ComponentActivity

        dispatchKeyShortcutEvent, superDispatchKeyEvent
      • Methods inherited from class android.app.Activity

        closeContextMenu, createPendingResult, dismissKeyboardShortcutsHelper, dispatchGenericMotionEvent, dispatchPopulateAccessibilityEvent, dispatchTouchEvent, dispatchTrackballEvent, enterPictureInPictureMode, finish, finishActivity, finishAffinity, finishAfterTransition, finishAndRemoveTask, getActionBar, getApplication, getCallingActivity, getCallingPackage, getChangingConfigurations, getComponentName, getContentScene, getContentTransitionManager, getCurrentFocus, getIntent, getLastNonConfigurationInstance, getLayoutInflater, getLocalClassName, getMaxNumPictureInPictureActions, getMediaController, getParent, getParentActivityIntent, getPreferences, getReferrer, getRequestedOrientation, getSearchEvent, getSystemService, getTaskId, getTitle, getTitleColor, getVoiceInteractor, getVolumeControlStream, getWindow, getWindowManager, hasWindowFocus, isActivityTransitionRunning, isChangingConfigurations, isChild, isDestroyed, isFinishing, isImmersive, isInMultiWindowMode, isInPictureInPictureMode, isLocalVoiceInteractionSupported, isTaskRoot, isVoiceInteraction, isVoiceInteractionRoot, moveTaskToBack, navigateUpTo, onActionModeFinished, onActionModeStarted, onActivityReenter, onApplyThemeResource, onAttachedToWindow, onChildTitleChanged, onContextItemSelected, onContextMenuClosed, onCreate, onCreateContextMenu, onCreateDescription, onCreateNavigateUpTaskStack, onCreatePanelView, onDetachedFromWindow, onEnterAnimationComplete, onGenericMotionEvent, onGetDirectActions, onKeyLongPress, onKeyMultiple, onKeyShortcut, onKeyUp, onLocalVoiceInteractionStarted, onLocalVoiceInteractionStopped, onMultiWindowModeChanged, onNavigateUp, onOptionsMenuClosed, onPerformDirectAction, onPictureInPictureModeChanged, onPictureInPictureRequested, onPostCreate, onPrepareNavigateUpTaskStack, onPrepareOptionsMenu, onProvideAssistContent, onProvideAssistData, onProvideKeyboardShortcuts, onProvideReferrer, onRestart, onRestoreInstanceState, onRestoreInstanceState, onSaveInstanceState, onSearchRequested, onSearchRequested, onTopResumedActivityChanged, onTouchEvent, onTrackballEvent, onTrimMemory, onUserInteraction, onUserLeaveHint, onWindowAttributesChanged, onWindowFocusChanged, onWindowStartingActionMode, onWindowStartingActionMode, openContextMenu, overridePendingTransition, postponeEnterTransition, recreate, registerActivityLifecycleCallbacks, registerForContextMenu, releaseInstance, requestDragAndDropPermissions, requestPermissions, requestShowKeyboardShortcuts, requestWindowFeature, requireViewById, runOnUiThread, setActionBar, setContentTransitionManager, setDefaultKeyMode, setEnterSharedElementCallback, setExitSharedElementCallback, setFeatureDrawable, setFeatureDrawableAlpha, setFeatureDrawableResource, setFeatureDrawableUri, setFinishOnTouchOutside, setImmersive, setInheritShowWhenLocked, setIntent, setLocusContext, setMediaController, setPictureInPictureParams, setRequestedOrientation, setResult, setResult, setShowWhenLocked, setTaskDescription, setTitle, setTitle, setTranslucent, setTurnScreenOn, setVisible, setVolumeControlStream, setVrModeEnabled, shouldShowRequestPermissionRationale, shouldUpRecreateTask, showAssist, showLockTaskEscapeMessage, startActionMode, startActionMode, startActivities, startActivities, startActivity, startActivity, startActivityForResult, startActivityForResult, startActivityIfNeeded, startActivityIfNeeded, startIntentSender, startIntentSender, startIntentSenderForResult, startIntentSenderForResult, startLocalVoiceInteraction, startLockTask, startNextMatchingActivity, startNextMatchingActivity, startPostponedEnterTransition, startSearch, stopLocalVoiceInteraction, stopLockTask, takeKeyEvents, triggerSearch, unregisterActivityLifecycleCallbacks, unregisterForContextMenu
      • Methods inherited from class android.view.ContextThemeWrapper

        applyOverrideConfiguration, getAssets, getTheme, setTheme
      • Methods inherited from class android.content.ContextWrapper

        bindIsolatedService, bindService, bindService, bindServiceAsUser, checkCallingOrSelfPermission, checkCallingOrSelfUriPermission, checkCallingPermission, checkCallingUriPermission, checkPermission, checkSelfPermission, checkUriPermission, checkUriPermission, createAttributionContext, createConfigurationContext, createContextForSplit, createDeviceProtectedStorageContext, createDisplayContext, createPackageContext, createWindowContext, databaseList, deleteDatabase, deleteFile, deleteSharedPreferences, enforceCallingOrSelfPermission, enforceCallingOrSelfUriPermission, enforceCallingPermission, enforceCallingUriPermission, enforcePermission, enforceUriPermission, enforceUriPermission, fileList, getApplicationContext, getApplicationInfo, getAttributionTag, getBaseContext, getCacheDir, getClassLoader, getCodeCacheDir, getContentResolver, getDatabasePath, getDataDir, getDir, getDisplay, getExternalCacheDir, getExternalCacheDirs, getExternalFilesDir, getExternalFilesDirs, getExternalMediaDirs, getFilesDir, getFileStreamPath, getMainExecutor, getMainLooper, getNoBackupFilesDir, getObbDir, getObbDirs, getOpPackageName, getPackageCodePath, getPackageManager, getPackageName, getPackageResourcePath, getSharedPreferences, getSystemServiceName, grantUriPermission, isDeviceProtectedStorage, isRestricted, moveDatabaseFrom, moveSharedPreferencesFrom, openFileInput, openFileOutput, openOrCreateDatabase, openOrCreateDatabase, registerReceiver, registerReceiver, registerReceiver, registerReceiver, revokeUriPermission, revokeUriPermission, sendBroadcast, sendBroadcast, sendBroadcastAsUser, sendBroadcastAsUser, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcastAsUser, startForegroundService, startInstrumentation, startService, stopService, unbindService, unregisterReceiver, updateServiceGroup
      • Methods inherited from class android.content.Context

        getColor, getColorStateList, getDrawable, getString, getString, getSystemService, getText, obtainStyledAttributes, obtainStyledAttributes, obtainStyledAttributes, obtainStyledAttributes, registerComponentCallbacks, sendBroadcastWithMultiplePermissions, unregisterComponentCallbacks
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
      • Methods inherited from interface androidx.core.app.ActivityCompat.RequestPermissionsRequestCodeValidator

        validateRequestPermissionsRequestCode
      • Methods inherited from interface android.view.Window.Callback

        onPointerCaptureChanged
    • Field Detail

      • mMyContexts

        public static java.util.ArrayList<Context> mMyContexts
    • Constructor Detail

      • MyContextsExample

        public MyContextsExample()
    • Method Detail

      • onCreate

        public void onCreate​(android.os.Bundle savedInstanceState)
        Overrides:
        onCreate in class androidx.fragment.app.FragmentActivity
      • onCreateOptionsMenu

        public boolean onCreateOptionsMenu​(android.view.Menu menu)
        Overrides:
        onCreateOptionsMenu in class android.app.Activity
      • onOptionsItemSelected

        public boolean onOptionsItemSelected​(android.view.MenuItem item)
        Overrides:
        onOptionsItemSelected in class android.app.Activity
      • startUpdatesButtonHandler

        public void startUpdatesButtonHandler​(android.view.View view)
        Handles the Start Context Updates button
      • stopUpdatesButtonHandler

        public void stopUpdatesButtonHandler​(android.view.View view)
        Handles the Stop Context Updates button, stop location updates
      • onDestroy

        protected void onDestroy()
        Overrides:
        onDestroy in class androidx.appcompat.app.AppCompatActivity
      • onRequestPermissionsResult

        public void onRequestPermissionsResult​(int requestCode,
                                               @NonNull
                                               java.lang.String[] permissions,
                                               @NonNull
                                               int[] grantResults)
        Callback received when a permissions request has been completed.
        Specified by:
        onRequestPermissionsResult in interface androidx.core.app.ActivityCompat.OnRequestPermissionsResultCallback
        Overrides:
        onRequestPermissionsResult in class androidx.fragment.app.FragmentActivity