de.hems.trafficsim

Class MainActivity

java.lang.Object

android.content.Context

android.content.ContextWrapper

android.view.ContextThemeWrapper

android.app.Activity

androidx.core.app.ComponentActivity

androidx.activity.ComponentActivity

androidx.fragment.app.FragmentActivity

androidx.appcompat.app.AppCompatActivity

de.hems.trafficsim.MainActivity

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, android.widget.SeekBar.OnSeekBarChangeListener, androidx.activity.OnBackPressedDispatcherOwner, 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.LifecycleOwner, androidx.lifecycle.ViewModelStoreOwner, androidx.savedstate.SavedStateRegistryOwner

public class MainActivity
extends androidx.appcompat.app.AppCompatActivity
implements android.widget.SeekBar.OnSeekBarChangeListener

Main user interface class, containing all necessary gui elements and their control flow.

Nested Class Summary

Nested classes/interfaces inherited from class androidx.core.app.ComponentActivity

androidx.core.app.ComponentActivity.ExtraData

Field Summary

Fields

Modifier and Type	Field and Description
static float	defaultBrakeProb default value of brake probability
static int	defaultDelay default value of the delay between two simulation steps
static int	defaultFrameskip default value of the number of vehicles on the track
static int	defaultHistoryLength default value of the number of vehicles on the track
static float	defaultMaxVelocity default value of the maximum velocity of the vehicles
static int	defaultNoOfVehicles default value of the number of vehicles on the track
static int	defaultTrackLength default value of the length of the track
protected Renderer	renderer the renderer instance drawing the track history
protected Track	track the track to show in the activity
protected TimeRecordView	trackView the surface view on which the renderer draws the track history
protected android.widget.LinearLayout	viewStack the layout which keeps the surface view
protected Worker	worker the thread which runs the simulation and visualization

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_MULTI_PROCESS, MODE_NO_LOCALIZED_COLLATORS, MODE_PRIVATE, MODE_WORLD_READABLE, MODE_WORLD_WRITEABLE, 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

Constructor Summary

Constructors

Constructor and Description
MainActivity()

Method Summary

Modifier and Type	Method and Description
void	onClearButtonClick(android.view.View view) Handler function for clicks on the "Stop" button.
protected void	onCreate(android.os.Bundle savedInstanceState) Constructor for MainActivity
void	onPlayButtonClick(android.view.View view) Handler function for clicks on the "Play" button.
void	onProgressChanged(android.widget.SeekBar seekBar, int progress, boolean fromUser) Handler function for changes on the seek bars.
void	onStartTrackingTouch(android.widget.SeekBar seekBar) Handler function for beginning touch events on a seek bar.
void	onStepButtonClick(android.view.View view) Handler function for clicks on the "Step" button.
void	onStopButtonClick(android.view.View view) Handler function for clicks on the "Stop" button.
void	onStopTrackingTouch(android.widget.SeekBar seekBar) Handler function for ending touch events on a seek bar.
static float	round(float number, int digits) Utility function to round a float to a given amount of digits.
protected void	stopWorker() Stops the current worker thread.
void	updateStats() Updates the statistics view.
protected void	updateTrack() Creates a new track with the current settings.

Methods inherited from class androidx.appcompat.app.AppCompatActivity

addContentView, attachBaseContext, closeOptionsMenu, dispatchKeyEvent, findViewById, getDelegate, getDrawerToggleDelegate, getMenuInflater, getResources, getSupportActionBar, getSupportParentActivityIntent, invalidateOptionsMenu, onConfigurationChanged, onContentChanged, onCreateSupportNavigateUpTaskStack, onDestroy, onKeyDown, onMenuItemSelected, onMenuOpened, onNightModeChanged, onPanelClosed, onPostCreate, onPostResume, onPrepareSupportNavigateUpTaskStack, onSaveInstanceState, onStart, onStop, onSupportActionModeFinished, onSupportActionModeStarted, onSupportContentChanged, onSupportNavigateUp, onTitleChanged, onWindowStartingSupportActionMode, openOptionsMenu, setContentView, setContentView, setContentView, setSupportActionBar, setSupportProgress, setSupportProgressBarIndeterminate, setSupportProgressBarIndeterminateVisibility, setSupportProgressBarVisibility, setTheme, startSupportActionMode, supportInvalidateOptionsMenu, supportNavigateUpTo, supportRequestWindowFeature, supportShouldUpRecreateTask

Methods inherited from class androidx.fragment.app.FragmentActivity

dump, getSupportFragmentManager, getSupportLoaderManager, onActivityResult, onAttachFragment, onCreatePanelMenu, onCreateView, onCreateView, onLowMemory, onMultiWindowModeChanged, onNewIntent, onPause, onPictureInPictureModeChanged, onPrepareOptionsPanel, onPreparePanel, onRequestPermissionsResult, onResume, onResumeFragments, onStateNotSaved, setEnterSharedElementCallback, setExitSharedElementCallback, startActivityForResult, startActivityForResult, startActivityFromFragment, startActivityFromFragment, startIntentSenderForResult, startIntentSenderForResult, startIntentSenderFromFragment, supportFinishAfterTransition, supportPostponeEnterTransition, supportStartPostponedEnterTransition, validateRequestPermissionsRequestCode

Methods inherited from class androidx.activity.ComponentActivity

getLastCustomNonConfigurationInstance, getLifecycle, getOnBackPressedDispatcher, getSavedStateRegistry, getViewModelStore, onBackPressed, onRetainCustomNonConfigurationInstance, onRetainNonConfigurationInstance

Methods inherited from class androidx.core.app.ComponentActivity

dispatchKeyShortcutEvent, getExtraData, putExtraData, superDispatchKeyEvent

Methods inherited from class android.app.Activity

closeContextMenu, createPendingResult, dismissDialog, dismissKeyboardShortcutsHelper, dispatchGenericMotionEvent, dispatchPopulateAccessibilityEvent, dispatchTouchEvent, dispatchTrackballEvent, enterPictureInPictureMode, enterPictureInPictureMode, finish, finishActivity, finishActivityFromChild, finishAffinity, finishAfterTransition, finishAndRemoveTask, finishFromChild, getActionBar, getApplication, getCallingActivity, getCallingPackage, getChangingConfigurations, getComponentName, getContentScene, getContentTransitionManager, getCurrentFocus, getFragmentManager, getIntent, getLastNonConfigurationInstance, getLayoutInflater, getLoaderManager, 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, managedQuery, moveTaskToBack, navigateUpTo, navigateUpToFromChild, onActionModeFinished, onActionModeStarted, onActivityReenter, onApplyThemeResource, onAttachedToWindow, onAttachFragment, onChildTitleChanged, onContextItemSelected, onContextMenuClosed, onCreate, onCreateContextMenu, onCreateDescription, onCreateDialog, onCreateDialog, onCreateNavigateUpTaskStack, onCreateOptionsMenu, onCreatePanelView, onCreateThumbnail, onDetachedFromWindow, onEnterAnimationComplete, onGenericMotionEvent, onGetDirectActions, onKeyLongPress, onKeyMultiple, onKeyShortcut, onKeyUp, onLocalVoiceInteractionStarted, onLocalVoiceInteractionStopped, onMultiWindowModeChanged, onNavigateUp, onNavigateUpFromChild, onOptionsItemSelected, onOptionsMenuClosed, onPerformDirectAction, onPictureInPictureModeChanged, onPictureInPictureRequested, onPostCreate, onPrepareDialog, onPrepareDialog, onPrepareNavigateUpTaskStack, onPrepareOptionsMenu, onProvideAssistContent, onProvideAssistData, onProvideKeyboardShortcuts, onProvideReferrer, onRestart, onRestoreInstanceState, onRestoreInstanceState, onSaveInstanceState, onSearchRequested, onSearchRequested, onTopResumedActivityChanged, onTouchEvent, onTrackballEvent, onTrimMemory, onUserInteraction, onUserLeaveHint, onVisibleBehindCanceled, onWindowAttributesChanged, onWindowFocusChanged, onWindowStartingActionMode, onWindowStartingActionMode, openContextMenu, overridePendingTransition, postponeEnterTransition, recreate, registerActivityLifecycleCallbacks, registerForContextMenu, releaseInstance, removeDialog, reportFullyDrawn, requestDragAndDropPermissions, requestPermissions, requestShowKeyboardShortcuts, requestVisibleBehind, requestWindowFeature, requireViewById, runOnUiThread, setActionBar, setContentTransitionManager, setDefaultKeyMode, setEnterSharedElementCallback, setExitSharedElementCallback, setFeatureDrawable, setFeatureDrawableAlpha, setFeatureDrawableResource, setFeatureDrawableUri, setFinishOnTouchOutside, setImmersive, setInheritShowWhenLocked, setIntent, setLocusContext, setMediaController, setPictureInPictureParams, setProgress, setProgressBarIndeterminate, setProgressBarIndeterminateVisibility, setProgressBarVisibility, setRequestedOrientation, setResult, setResult, setSecondaryProgress, setShowWhenLocked, setTaskDescription, setTitle, setTitle, setTitleColor, setTranslucent, setTurnScreenOn, setVisible, setVolumeControlStream, setVrModeEnabled, shouldShowRequestPermissionRationale, shouldUpRecreateTask, showAssist, showDialog, showDialog, showLockTaskEscapeMessage, startActionMode, startActionMode, startActivities, startActivities, startActivity, startActivity, startActivityFromChild, startActivityFromChild, startActivityFromFragment, startActivityFromFragment, startActivityIfNeeded, startActivityIfNeeded, startIntentSender, startIntentSender, startIntentSenderFromChild, startIntentSenderFromChild, startLocalVoiceInteraction, startLockTask, startManagingCursor, startNextMatchingActivity, startNextMatchingActivity, startPostponedEnterTransition, startSearch, stopLocalVoiceInteraction, stopLockTask, stopManagingCursor, 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, clearWallpaper, 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, getWallpaper, getWallpaperDesiredMinimumHeight, getWallpaperDesiredMinimumWidth, grantUriPermission, isDeviceProtectedStorage, isRestricted, moveDatabaseFrom, moveSharedPreferencesFrom, openFileInput, openFileOutput, openOrCreateDatabase, openOrCreateDatabase, peekWallpaper, registerReceiver, registerReceiver, registerReceiver, registerReceiver, removeStickyBroadcast, removeStickyBroadcastAsUser, revokeUriPermission, revokeUriPermission, sendBroadcast, sendBroadcast, sendBroadcastAsUser, sendBroadcastAsUser, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcast, sendOrderedBroadcastAsUser, sendStickyBroadcast, sendStickyBroadcastAsUser, sendStickyOrderedBroadcast, sendStickyOrderedBroadcastAsUser, setWallpaper, setWallpaper, 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 android.view.Window.Callback

onPointerCaptureChanged

Field Detail

defaultNoOfVehicles

public static final int defaultNoOfVehicles

default value of the number of vehicles on the track

See Also:

Constant Field Values

defaultTrackLength

public static final int defaultTrackLength

default value of the length of the track

See Also:

Constant Field Values

defaultBrakeProb

public static final float defaultBrakeProb

default value of brake probability

See Also:

Constant Field Values

defaultMaxVelocity

public static final float defaultMaxVelocity

default value of the maximum velocity of the vehicles

See Also:

Constant Field Values

defaultDelay

public static final int defaultDelay

default value of the delay between two simulation steps

See Also:

Constant Field Values

defaultHistoryLength

public static final int defaultHistoryLength

default value of the number of vehicles on the track

See Also:

Constant Field Values

defaultFrameskip

public static final int defaultFrameskip

default value of the number of vehicles on the track

See Also:

Constant Field Values

track

protected Track track

the track to show in the activity

trackView

protected TimeRecordView trackView

the surface view on which the renderer draws the track history

worker

protected Worker worker

the thread which runs the simulation and visualization

renderer

protected Renderer renderer

the renderer instance drawing the track history

viewStack

protected android.widget.LinearLayout viewStack

the layout which keeps the surface view

Constructor Detail

MainActivity

public MainActivity()

Method Detail

onCreate

protected void onCreate(android.os.Bundle savedInstanceState)

Constructor for MainActivity

Overrides:

onCreate in class androidx.appcompat.app.AppCompatActivity

Parameters:

savedInstanceState - Bundle with previously saved activity state, otherwise null

round

public static float round(float number,
                          int digits)

Utility function to round a float to a given amount of digits.

Parameters:

number - number to round

digits - amount of digits

Returns:

rounded number

updateStats

public void updateStats()

Updates the statistics view.

onStepButtonClick

public void onStepButtonClick(android.view.View view)

Handler function for clicks on the "Step" button.

Parameters:

view - the view the event is generated from

onPlayButtonClick

public void onPlayButtonClick(android.view.View view)

Handler function for clicks on the "Play" button.

Parameters:

view - the view the event is generated from

onStopButtonClick

public void onStopButtonClick(android.view.View view)

Handler function for clicks on the "Stop" button.

Parameters:

view - the view the event is generated from

stopWorker

protected void stopWorker()

Stops the current worker thread.

onClearButtonClick

public void onClearButtonClick(android.view.View view)

Handler function for clicks on the "Stop" button.

Parameters:

view - the view the event is generated from

updateTrack

protected void updateTrack()

Creates a new track with the current settings. This methods restarts the simulation it it was running before.

onProgressChanged

public void onProgressChanged(android.widget.SeekBar seekBar,
                              int progress,
                              boolean fromUser)

Handler function for changes on the seek bars.

Specified by:

onProgressChanged in interface android.widget.SeekBar.OnSeekBarChangeListener

Parameters:

seekBar - the seek bar changed

progress - the new progress value of the seek bar

fromUser - flag if the event is the result of an user action

onStartTrackingTouch

public void onStartTrackingTouch(android.widget.SeekBar seekBar)

Handler function for beginning touch events on a seek bar.

Specified by:

onStartTrackingTouch in interface android.widget.SeekBar.OnSeekBarChangeListener

Parameters:

seekBar - the seek bar touched

onStopTrackingTouch

public void onStopTrackingTouch(android.widget.SeekBar seekBar)

Handler function for ending touch events on a seek bar.

Specified by:

onStopTrackingTouch in interface android.widget.SeekBar.OnSeekBarChangeListener

Parameters:

seekBar - the seek bar touched