Example usage for android.content Intent ACTION_MAIN

Introduction

In this page you can find the example usage for android.content Intent ACTION_MAIN.

Prototype

String ACTION_MAIN

To view the source code for android.content Intent ACTION_MAIN.

Click Source Link

Document

Activity Action: Start as a main entry point, does not expect to receive data.

Usage

From source file:com.jecelyin.editor.v2.ui.MainActivity.java

private boolean processIntentImpl() throws Throwable {
    Intent intent = getIntent();/*w  w w.java 2s  .  co  m*/
    L.d("intent=" + intent);
    if (intent == null)
        return true; //pass hint

    String action = intent.getAction();
    // action == null if change theme
    if (action == null || Intent.ACTION_MAIN.equals(action)) {
        return true;
    }

    if (Intent.ACTION_VIEW.equals(action) || Intent.ACTION_EDIT.equals(action)) {
        if (intent.getScheme().equals("content")) {
            InputStream attachment = getContentResolver().openInputStream(intent.getData());
            String text = IOUtils.toString(attachment);
            openText(text);
            return true;
        } else if (intent.getScheme().equals("file")) {
            Uri mUri = intent.getData();
            String file = mUri != null ? mUri.getPath() : null;
            if (!TextUtils.isEmpty(file)) {
                openFile(file);
                return true;
            }
        }

    } else if (Intent.ACTION_SEND.equals(action) && intent.getExtras() != null) {
        Bundle extras = intent.getExtras();
        CharSequence text = extras.getCharSequence(Intent.EXTRA_TEXT);

        if (text != null) {
            openText(text);
            return true;
        } else {
            Object stream = extras.get(Intent.EXTRA_STREAM);
            if (stream != null && stream instanceof Uri) {
                openFile(((Uri) stream).getPath());
                return true;
            }
        }
    }

    return false;
}

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From source file:org.zywx.wbpalmstar.engine.universalex.EUExWidget.java

private String getMainActivity(String pkgName) {
    String className = null;/*from www.java2  s. com*/
    PackageInfo pi = null;
    try {
        pi = mContext.getPackageManager().getPackageInfo(pkgName, 0);
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }

    if (pi == null)
        return null;

    Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
    resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
    resolveIntent.setPackage(pi.packageName);

    List<ResolveInfo> apps = mContext.getPackageManager().queryIntentActivities(resolveIntent, 0);
    if (apps == null || apps.size() == 0)
        return null;

    ResolveInfo ri = apps.iterator().next();
    if (ri != null) {
        className = ri.activityInfo.name;
    }
    return className;
}

---

From source file:com.quickcar.thuexe.UI.ListPassengerActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
        if (doubleBackToExitPressedOnce) {
            Intent intent = new Intent(Intent.ACTION_MAIN);
            intent.addCategory(Intent.CATEGORY_HOME);
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            startActivity(intent);//from   w  w w. j  av  a  2 s  .  c  o  m
        } else {
            Toast.makeText(mContext, getResources().getString(R.string.notice_close_app), Toast.LENGTH_SHORT)
                    .show();
            this.doubleBackToExitPressedOnce = true;
            new Handler().postDelayed(new Runnable() {

                @Override
                public void run() {
                    doubleBackToExitPressedOnce = false;
                }
            }, 2000);
        }
        return true;
    } else if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 1) {
        finish();
    }

    return super.onKeyDown(keyCode, event);
}

---

From source file:com.dnielfe.manager.AppManager.java

private void createshortcut() {
    Intent shortcutIntent = new Intent(AppManager.this, AppManager.class);
    shortcutIntent.setAction(Intent.ACTION_MAIN);

    shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    Intent addIntent = new Intent();
    addIntent.putExtra(Intent.EXTRA_SHORTCUT_INTENT, shortcutIntent);
    addIntent.putExtra(Intent.EXTRA_SHORTCUT_NAME, getString(R.string.appmanager));
    addIntent.putExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE,
            Intent.ShortcutIconResource.fromContext(AppManager.this, R.drawable.type_apk));
    addIntent.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
    AppManager.this.sendBroadcast(addIntent);

    Toast.makeText(AppManager.this, getString(R.string.shortcutcreated), Toast.LENGTH_SHORT).show();
}

---

From source file:com.android.launcher4.InstallShortcutReceiver.java

private static ShortcutInfo getShortcutInfo(Context context, Intent data, Intent launchIntent) {
    if (launchIntent.getAction() == null) {
        launchIntent.setAction(Intent.ACTION_VIEW);
    } else if (launchIntent.getAction().equals(Intent.ACTION_MAIN) && launchIntent.getCategories() != null
            && launchIntent.getCategories().contains(Intent.CATEGORY_LAUNCHER)) {
        launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
    }/*from w ww  . ja  va 2  s. c  o  m*/
    LauncherAppState app = LauncherAppState.getInstance();
    ShortcutInfo info = app.getModel().infoFromShortcutIntent(context, data, null);
    info.title = ensureValidName(context, launchIntent, info.title);
    return info;
}

---

From source file:edu.missouri.bas.service.SensorService.java

@SuppressWarnings("deprecation")
@Override//ww w . j a v  a2s . co  m
public void onCreate() {

    super.onCreate();
    Log.d(TAG, "Starting sensor service");
    mSoundPool = new SoundPool(4, AudioManager.STREAM_MUSIC, 100);
    soundsMap = new HashMap<Integer, Integer>();
    soundsMap.put(SOUND1, mSoundPool.load(this, R.raw.bodysensor_alarm, 1));
    soundsMap.put(SOUND2, mSoundPool.load(this, R.raw.voice_notification, 1));

    serviceContext = this;

    mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);

    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    bluetoothMacAddress = mBluetoothAdapter.getAddress();
    mAlarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);

    //Get location manager
    mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

    activityRecognition = new ActivityRecognitionScan(getApplicationContext());
    activityRecognition.startActivityRecognitionScan();

    mPowerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);

    serviceWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "SensorServiceLock");
    serviceWakeLock.acquire();

    //Initialize start time
    stime = System.currentTimeMillis();

    //Setup calendar object
    Calendar cal = Calendar.getInstance();
    cal.setTimeInMillis(stime);

    /*
     * Setup notification manager
     */

    notification = new Notification(R.drawable.icon2, "Recorded", System.currentTimeMillis());
    notification.defaults = 0;
    notification.flags |= Notification.FLAG_ONGOING_EVENT;
    notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);

    Intent notifyIntent = new Intent(Intent.ACTION_MAIN);
    notifyIntent.setClass(this, MainActivity.class);

    /*
     * Display notification that service has started
     */
    notification.tickerText = "Sensor Service Running";
    PendingIntent contentIntent = PendingIntent.getActivity(SensorService.this, 0, notifyIntent,
            Notification.FLAG_ONGOING_EVENT);
    notification.setLatestEventInfo(SensorService.this, getString(R.string.app_name),
            "Recording service started at: " + cal.getTime().toString(), contentIntent);

    notificationManager.notify(SensorService.SERVICE_NOTIFICATION_ID, notification);

    // locationControl = new LocationControl(this, mLocationManager, 1000 * 60, 200, 5000);   

    IntentFilter activityResultFilter = new IntentFilter(XMLSurveyActivity.INTENT_ACTION_SURVEY_RESULTS);
    SensorService.this.registerReceiver(alarmReceiver, activityResultFilter);

    IntentFilter sensorDataFilter = new IntentFilter(SensorService.ACTION_SENSOR_DATA);
    SensorService.this.registerReceiver(alarmReceiver, sensorDataFilter);
    Log.d(TAG, "Sensor service created.");

    try {
        prepareIO();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    prepareAlarms();

    Intent startSensors = new Intent(SensorService.ACTION_START_SENSORS);
    this.sendBroadcast(startSensors);

    Intent scheduleCheckConnection = new Intent(SensorService.ACTION_SCHEDULE_CHECK);
    scheduleCheck = PendingIntent.getBroadcast(serviceContext, 0, scheduleCheckConnection, 0);
    mAlarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP,
            SystemClock.elapsedRealtime() + 1000 * 60 * 5, 1000 * 60 * 5, scheduleCheck);
    mLocationClient = new LocationClient(this, this, this);
}

---

From source file:net.ustyugov.jtalk.Notify.java

public static void fileProgress(String filename, Status status) {
    JTalkService service = JTalkService.getInstance();

    Intent i = new Intent(service, RosterActivity.class);
    i.setAction(Intent.ACTION_MAIN);
    i.addCategory(Intent.CATEGORY_LAUNCHER);
    i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    PendingIntent contentIntent = PendingIntent.getActivity(service, 0, i, 0);

    NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(service);
    mBuilder.setContentTitle(filename);//from   w ww  .  j av  a2 s.c  o  m
    mBuilder.setContentIntent(contentIntent);
    mBuilder.setOngoing(false);

    if (status == Status.complete) {
        mBuilder.setSmallIcon(android.R.drawable.stat_sys_download_done);
        mBuilder.setTicker(service.getString(R.string.Completed));
        mBuilder.setContentText(service.getString(R.string.Completed));
        mBuilder.setAutoCancel(true);
    } else if (status == Status.cancelled) {
        mBuilder.setSmallIcon(android.R.drawable.stat_sys_warning);
        mBuilder.setTicker(service.getString(R.string.Canceled));
        mBuilder.setContentText(service.getString(R.string.Canceled));
        mBuilder.setAutoCancel(true);
    } else if (status == Status.refused) {
        mBuilder.setSmallIcon(android.R.drawable.stat_sys_warning);
        mBuilder.setTicker(service.getString(R.string.Canceled));
        mBuilder.setContentText(service.getString(R.string.Canceled));
        mBuilder.setAutoCancel(true);
    } else if (status == Status.negotiating_transfer) {
        mBuilder.setSmallIcon(android.R.drawable.stat_sys_download_done);
        mBuilder.setTicker(service.getString(R.string.Waiting));
        mBuilder.setContentText(service.getString(R.string.Waiting));
    } else if (status == Status.in_progress) {
        mBuilder.setSmallIcon(android.R.drawable.stat_sys_download);
        mBuilder.setTicker(service.getString(R.string.Downloading));
        mBuilder.setContentText(service.getString(R.string.Downloading));
    } else if (status == Status.error) {
        mBuilder.setSmallIcon(android.R.drawable.stat_sys_warning);
        mBuilder.setTicker(service.getString(R.string.Error));
        mBuilder.setContentText(service.getString(R.string.Error));
        mBuilder.setAutoCancel(true);
    } else {
        return;
    }

    NotificationManager mng = (NotificationManager) service.getSystemService(Context.NOTIFICATION_SERVICE);
    mng.notify(NOTIFICATION_FILE, mBuilder.build());
}

---

From source file:com.jedi.setupwizard.ui.SetupWizardActivity.java

private void finalizeSetup() {
    Intent intent = new Intent(Intent.ACTION_MAIN);
    intent.addCategory(Intent.CATEGORY_HOME);
    disableSetupWizards(intent);/*from w ww  . j a  v  a 2s  .c  om*/
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
    startActivity(intent);
    finish();
}

---

From source file:com.gizwits.framework.activity.BaseActivity.java

/**
 * ??app/*from w w w  . jav  a  2 s .c om*/
 */
public void exit() {
    if (!isExit) {
        isExit = true;
        Toast.makeText(getApplicationContext(), getString(R.string.tip_exit), Toast.LENGTH_SHORT).show();
        handler.sendEmptyMessageDelayed(0, 2000);
    } else {

        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_HOME);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        this.startActivity(intent);
        Historys.exit();
    }
}

---

From source file:com.nbplus.vbroadlauncher.HomeLauncherActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    boolean isTablet = DisplayUtils.isTabletDevice(this);
    LauncherSettings.getInstance(this).setIsSmartPhone(!isTablet);
    overridePendingTransition(R.anim.fade_in, R.anim.fade_out);
    setContentView(R.layout.activity_home_launcher);

    DeviceUtils.showDeviceInformation();

    Log.d(TAG, ">>>DisplayUtils.getScreenDensity(this) = " + DisplayUtils.getScreenDensity(this));

    // vitamio library load
    if (!LibsChecker.checkVitamioLibs(this)) {
        AlertDialog.Builder alert = new AlertDialog.Builder(this);
        alert.setPositiveButton(R.string.alert_ok, new DialogInterface.OnClickListener() {
            @Override// w  ww.  j  av a2 s. com
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                finish();
            }
        });
        alert.setMessage(R.string.alert_media_message);
        alert.show();
        return;
    }

    mCurrentLocale = getResources().getConfiguration().locale;
    if (BuildConfig.DEBUG) {
        Point p = DisplayUtils.getScreenSize(this);
        Log.d(TAG, "Screen size px = " + p.x + ", py = " + p.y);
        Point screen = p;
        p = DisplayUtils.getScreenDp(this);
        Log.d(TAG, "Screen dp x = " + p.x + ", y = " + p.y);
        int density = DisplayUtils.getScreenDensity(this);
        Log.d(TAG, "Screen density = " + density);
    }

    if (isTablet) {
        //is tablet
        Log.d(TAG, "Tablet");
    } else {
        //is phone
        Log.d(TAG, "isTabletDevice() returns Phone.. now check display inches");
        double diagonalInches = DisplayUtils.getDisplayInches(this);
        if (diagonalInches >= 6.4) {
            // 800x400 ? portrait ? 6.43 ? .
            // 6.5inch device or bigger
            Log.d(TAG, "DisplayUtils.getDisplayInches() bigger than 6.5");
        } else {
            if (!Constants.OPEN_BETA_PHONE) {
                // smaller device
                Log.d(TAG, "DisplayUtils.getDisplayInches() smaller than 6.5");
                AlertDialog.Builder alert = new AlertDialog.Builder(this);
                alert.setPositiveButton(R.string.alert_ok, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        dialog.dismiss();
                        finish();
                    }
                });
                alert.setMessage(R.string.alert_phone_message);
                alert.show();

                return;
            }
        }
    }

    if (!Constants.OPEN_BETA_PHONE || !LauncherSettings.getInstance(this).isSmartPhone()) {
        if (isMyLauncherDefault()) {
            Log.d(TAG, "isMyLauncherDefault() == true");
            // fake home key event.
            Intent fakeIntent = new Intent();
            fakeIntent.setAction(Intent.ACTION_MAIN);
            fakeIntent.addCategory(Intent.CATEGORY_HOME);
            fakeIntent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS | Intent.FLAG_ACTIVITY_FORWARD_RESULT
                    | Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_PREVIOUS_IS_TOP
                    | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
            startActivity(fakeIntent);
        } else {
            Log.d(TAG, "Constants.OPEN_BETA_PHONE == false || isMyLauncherDefault() == false");
            //resetPreferredLauncherAndOpenChooser();
        }
    }

    // ?  .. ?   ?   ?.
    // ?  ?.
    IntentFilter filter = new IntentFilter();
    filter.addAction(Constants.ACTION_LAUNCHER_ACTIVITY_RUNNING);
    filter.addAction(IoTConstants.ACTION_RECEIVE_EMERGENCY_CALL_DEVICE_BROADCAST);
    LocalBroadcastManager.getInstance(this).registerReceiver(mBroadcastReceiver, filter);

    Intent intent = new Intent(Constants.ACTION_LAUNCHER_ACTIVITY_RUNNING);
    mActivityRunningTime = System.currentTimeMillis();
    intent.putExtra(Constants.EXTRA_LAUNCHER_ACTIVITY_RUNNING, mActivityRunningTime);
    LocalBroadcastManager.getInstance(this).sendBroadcast(intent);

    // set background image
    setContentViewByOrientation();
    if (LauncherSettings.getInstance(this).getPreferredUserLocation() == null) {
        Location defaultLocation = new Location("stub");

        defaultLocation.setLongitude(126.929810);
        defaultLocation.setLatitude(37.488201);

        LauncherSettings.getInstance(this).setPreferredUserLocation(defaultLocation);
    }

    // First we need to check availability of play services
    mResultReceiver = new AddressResultReceiver(mActivityHandler);
    // Set defaults, then update using values stored in the Bundle.
    mAddressRequested = false;
    mAddressOutput = null;

    // Update values using data stored in the Bundle.
    updateValuesFromBundle(savedInstanceState);

    /**
     *   ?  ??? ?  .
     * ?? ? .
     */
    mBroadcastFramelayout = (FrameLayout) findViewById(R.id.realtimeBroadcastFragment);
    if (mBroadcastFramelayout != null) {
        mBroadcastFramelayout.setVisibility(View.GONE);
    }
    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
    Bundle bundle;

    // check installation or bind to service
    VBroadcastServer serverInfo = LauncherSettings.getInstance(this).getServerInformation();
    if (serverInfo == null || !Constants.VBROAD_INITIAL_PAGE.equals(serverInfo.getInitialServerPage())) {
        // ?   ?.
        //  ?  Registration ?  .
        LauncherSettings.getInstance(this).setServerInformation(null);
        LauncherSettings.getInstance(this).setIsCompletedSetup(false);
        // open user register fragment
        RegisterFragment registerFragment = new RegisterFragment();
        bundle = new Bundle();
        registerFragment.setArguments(bundle);

        fragmentTransaction.replace(R.id.launcherFragment, registerFragment);
    } else {
        if (LauncherSettings.getInstance(this).isCompletedSetup() == false) {

            LauncherSettings.getInstance(this).setServerInformation(null);
            // open user register fragment
            RegisterFragment registerFragment = new RegisterFragment();
            bundle = new Bundle();
            registerFragment.setArguments(bundle);

            fragmentTransaction.replace(R.id.launcherFragment, registerFragment);
        } else {
            // open main launcher fragment
            LauncherFragment launcherFragment = new LauncherFragment();
            bundle = new Bundle();
            launcherFragment.setArguments(bundle);

            fragmentTransaction.replace(R.id.launcherFragment, launcherFragment);
        }
    }
    fragmentTransaction.commit();

    // initialize iot interface.
    String collectServerAddress = null;
    if (serverInfo != null) {
        String apiServer = serverInfo.getApiServer();
        if (StringUtils.isEmptyString(apiServer)) {
            collectServerAddress = null;
        } else {
            collectServerAddress = apiServer + Constants.API_COLLECTED_IOT_DATA_CONTEXT;
        }
    }
    IoTResultCodes resCode = IoTInterface.getInstance().initialize(this,
            LauncherSettings.getInstance(this).getDeviceID(), collectServerAddress);
    if (!resCode.equals(IoTResultCodes.SUCCESS)) {
        if (resCode.equals(IoTResultCodes.BIND_SERVICE_FAILED)) {
            Toast.makeText(getApplicationContext(), "Bind IoT Service failed!!!", Toast.LENGTH_SHORT).show();
        }
    }
}

---

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