Example usage for android.view KeyEvent KEYCODE_BACK

Introduction

In this page you can find the example usage for android.view KeyEvent KEYCODE_BACK.

Prototype

int KEYCODE_BACK

To view the source code for android.view KeyEvent KEYCODE_BACK.

Click Source Link

Document

Key code constant: Back key.

Usage

From source file:com.app.blockydemo.ui.ScriptActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    FragmentManager fragmentManager = getSupportFragmentManager();

    for (String tag : FormulaEditorListFragment.TAGS) {
        FormulaEditorListFragment fragment = (FormulaEditorListFragment) fragmentManager.findFragmentByTag(tag);
        if (fragment != null) {
            if (fragment.isVisible()) {
                return fragment.onKey(null, keyCode, event);
            }//  w  w w  . ja  va  2s. c o  m
        }
    }

    FormulaEditorVariableListFragment formulaEditorVariableListFragment = (FormulaEditorVariableListFragment) getSupportFragmentManager()
            .findFragmentByTag(FormulaEditorVariableListFragment.VARIABLE_TAG);

    if (formulaEditorVariableListFragment != null) {
        if (formulaEditorVariableListFragment.isVisible()) {
            return formulaEditorVariableListFragment.onKey(null, keyCode, event);
        }
    }

    FormulaEditorFragment formulaEditor = (FormulaEditorFragment) getSupportFragmentManager()
            .findFragmentByTag(FormulaEditorFragment.FORMULA_EDITOR_FRAGMENT_TAG);

    if (formulaEditor != null) {
        if (formulaEditor.isVisible()) {
            scriptFragment.getAdapter().updateProjectBrickList();
            return formulaEditor.onKey(null, keyCode, event);
        }
    }

    int backStackEntryCount = fragmentManager.getBackStackEntryCount();
    for (int i = backStackEntryCount; i > 0; --i) {
        String backStackEntryName = fragmentManager.getBackStackEntryAt(i - 1).getName();
        if (backStackEntryName != null) {
            fragmentManager.popBackStack();
        } else {
            break;
        }
    }

    if (keyCode == KeyEvent.KEYCODE_BACK) {
        if (currentFragmentPosition == FRAGMENT_SCRIPTS) {
            DragAndDropListView listView = scriptFragment.getListView();
            if (listView.isCurrentlyDragging()) {
                listView.resetDraggingScreen();

                BrickAdapter adapter = scriptFragment.getAdapter();
                adapter.removeDraggedBrick();
                return true;
            }
        }
    }
    return super.onKeyDown(keyCode, event);
}

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From source file:com.hyechon.etrackermv.FaceTrackerActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_BACK) && mWebView.canGoBack()) {
        mWebView.goBack();/*  ww w.  j  ava  2s  .  c om*/
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

---

From source file:com.alivenet.dmvtaxi.fragment.FragmentRateYourRide.java

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.trip_completed, container, false);

    ratingBar = (RatingBar) view.findViewById(R.id.ratingbar);
    Text_tripcomplete_pickuplocation = (TextView) view.findViewById(R.id.tripcomplete_pickuplocation);
    Text_tripcomplete_dropoff_location = (TextView) view.findViewById(R.id.tripcomplete_dropoff_location);
    mname = (TextView) view.findViewById(R.id.tv_name);
    Text_tripcharged = (TextView) view.findViewById(R.id.tripcharged);
    mlicenceplate = (TextView) view.findViewById(R.id.tv_licenceplate);
    mtaname = (TextView) view.findViewById(R.id.tv_taname);
    mcommentbox = (EditText) view.findViewById(R.id.et_commentbox);
    btntip = (Button) view.findViewById(R.id.btntip);
    btnsubmit = (Button) view.findViewById(R.id.btnsubmit);
    icon = (ImageView) view.findViewById(R.id.tripcompltd_icons);

    mPref = getActivity().getSharedPreferences(MYPREF, Context.MODE_PRIVATE);
    mUserId = mPref.getString("userId", null);
    prgDialog = new ProgressDialog(getActivity());
    prgDialog.setMessage("Please wait...");
    prgDialog.setCancelable(false);/*w w w .ja v a  2s .c  o m*/
    btntip.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            if (MyApplication.RateyourRide == false) {

                LayoutInflater li = LayoutInflater.from(getContext());
                View promptsView = li.inflate(R.layout.prompts, null);

                AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(getActivity());
                alertDialogBuilder.setView(promptsView);
                tipValue = (EditText) promptsView.findViewById(R.id.edittip_value);
                // set dialog message
                alertDialogBuilder.setCancelable(false)
                        .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                // get user input and set it to result
                                // edit text
                                if (tipValue.getText().toString().trim().length() == 0) {

                                } else {
                                    btntip.setText(String.format("Tip: $ %.2f",
                                            Double.valueOf(tipValue.getText().toString())));

                                }
                            }
                        }).setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog, int id) {
                                dialog.cancel();
                            }
                        });
                // create alert dialog
                AlertDialog alertDialog = alertDialogBuilder.create();
                alertDialog.show();

                getToken(mUserId);

            }

        }
    });
    rideDriverComplete = sharedPreference.getDriverRidercompleate(getActivity());
    String rideId = MyApplication.RideId;
    if (rideDriverComplete == null && rideId != null) {

        ValidateRidecomplet(mUserId, rideId);
    }

    if (MyApplication.RateyourRide == true) {
        btnsubmit.setVisibility(View.GONE);
        mcommentbox.setVisibility(View.GONE);
    }

    if (rideDriverComplete != null) {

        if (rideDriverComplete.getPickupaddress() != null && rideDriverComplete.getPickupaddress() != " "
                && rideDriverComplete.getDestinationaddress() != null
                && rideDriverComplete.getDestinationaddress() != " ") {
            Text_tripcomplete_pickuplocation.setText(rideDriverComplete.getPickupaddress());
            Text_tripcomplete_dropoff_location.setText(rideDriverComplete.getDestinationaddress());
        }
        try {

            Picasso.with(getActivity()).load(MyPreferences.getActiveInstance(getActivity()).getImageUrl())
                    .error(R.mipmap.avtar).placeholder(R.mipmap.avtar).into(icon);
        } catch (Exception e) {
            e.printStackTrace();
        }

        mname.setText(rideDriverComplete.driverNameride);
        mlicenceplate.setText(rideDriverComplete.licenseId);
        mtaname.setText(rideDriverComplete.vehicle);
        Text_tripcharged
                .setText("$" + rideDriverComplete.getTotalfare() + "  HAS BEEN CHARGED TO YOUR CREDIT CARD");

        btnsubmit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String totalStars = "Total Stars:: " + ratingBar.getNumStars();
                String rating = "Rating :: " + ratingBar.getRating();
                String tip = "";
                if (rideDriverComplete != null) {

                    String driverid = rideDriverComplete.getDriverIdride();
                    String rideId = rideDriverComplete.getRideId();
                    if (tipValue != null)
                        tip = tipValue.getText().toString();

                    String comment = mcommentbox.getText().toString();
                    if (driverid != null && rideId != null && totalStars != null && tip != null) {

                        validateRideRating(mUserId, driverid, rideId, totalStars, tip, comment);
                    }

                }
            }
        });
    }

    view.setFocusableInTouchMode(true);
    view.requestFocus();
    view.setOnKeyListener(new View.OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (event.getAction() == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
                // handle back button's click listener

                if (keyCode == KeyEvent.KEYCODE_BACK) {

                    Fragment homeFragment = new FragmentMainScreen();
                    FragmentManager frgManager;
                    frgManager = getFragmentManager();
                    frgManager.beginTransaction().replace(R.id.fragment_switch, homeFragment).commit();

                    return true;
                }

                return true;
            }
            return false;
        }
    });

    return view;

}

---

From source file:br.org.funcate.dynamicforms.FormActivity.java

public boolean onKeyDown(int keyCode, KeyEvent event) {
    // force to exit through the exit button, in order to avoid losing info
    switch (keyCode) {
    case KeyEvent.KEYCODE_BACK:
        finish();/*from www  .  j a va2  s.com*/
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

---

From source file:com.cloudant.todo.TodoActivity.java

public Dialog createProgressDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    final View v = this.getLayoutInflater().inflate(R.layout.dialog_loading, null);

    DialogInterface.OnClickListener negativeClick = new DialogInterface.OnClickListener() {
        @Override//from  www . ja v  a  2  s .c  o  m
        public void onClick(DialogInterface dialog, int which) {
            stopReplication();
        }
    };

    DialogInterface.OnKeyListener keyListener = new DialogInterface.OnKeyListener() {
        @Override
        public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_BACK) {
                Toast.makeText(getApplicationContext(), R.string.replication_running, Toast.LENGTH_LONG).show();
                return true;
            }
            return false;
        }
    };

    builder.setView(v).setNegativeButton("Stop", negativeClick).setOnKeyListener(keyListener);

    return builder.create();
}

---

From source file:com.example.android.LevelChooserActivity.java

/**
 * onKeyDown overrides onKeyDown and allows code to be executed when the
 * back button is pushed in the simulator / on the mobile phone Since
 * pushing "back" won't necessarily call the destroy method as far as I
 * understand it.//from  ww w. j ava2s  .  c o m
 * 
 * @param keyCode
 *            : code of the key pressed
 * @param event
 *            : the event for the key pressed
 */
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == zero) {

        //This code cannot be in onStop in LevelChooserActivity because
        //it also kills the ticking noise as Game begins
        //cancel any noises and abandon focus
        SoundPlayer.stop();
        if (focusHelper != null) {
            focusHelper.abandonFocus();
        }

        // continue backwards (kills current activity calling onDestroy)
        finish();

        return true;
    }

    return super.onKeyDown(keyCode, event);
}

---

From source file:com.mercandalli.android.apps.files.file.image.FileImageActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
        supportFinishAfterTransition();/* www  . ja  v a2  s .  c om*/
    }
    return super.onKeyDown(keyCode, event);
}

---

From source file:net.evecom.androidecssp.activity.event.ETypeListActivity.java

/**
 * //from w  w w  .j  a va  2 s  . c om
 * 
 * 
 * @author Stark Zhou
 * @created 2015-12-30 2:23:38
 * @param view
 */
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if ((keyCode == KeyEvent.KEYCODE_BACK)) {
        Intent intent = new Intent();
        setResult(4, intent);
        finish();
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

---

From source file:com.muzima.view.forms.FormWebViewActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        AlertDialog.Builder builder = new AlertDialog.Builder(FormWebViewActivity.this);
        builder.setCancelable(true).setIcon(getResources().getDrawable(R.drawable.ic_warning))
                .setTitle(getResources().getString(R.string.caution))
                .setMessage(getResources().getString(R.string.exit_form_message))
                .setPositiveButton("Yes", positiveClickListener()).setNegativeButton("No", null).create()
                .show();//from w  ww. ja  v a2  s.c om
        return false;
    }
    return super.onKeyDown(keyCode, event);
}

---

From source file:ch.teamuit.android.soundplusplus.LibraryActivity.java

@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
    switch (keyCode) {
    case KeyEvent.KEYCODE_BACK:
        Limiter limiter = mPagerAdapter.getCurrentLimiter();

        if (mSlidingView.isHidden() == false) {
            mSlidingView.hideSlide();// ww  w . j av  a  2  s .  c om
            break;
        }

        if (mBottomBarControls.showSearch(false)) {
            break;
        }

        if (limiter != null) {
            int pos = -1;
            switch (limiter.type) {
            case MediaUtils.TYPE_ALBUM:
                setLimiter(MediaUtils.TYPE_ARTIST, limiter.data.toString());
                pos = mPagerAdapter.mAlbumsPosition;
                break;
            case MediaUtils.TYPE_ARTIST:
                mPagerAdapter.clearLimiter(MediaUtils.TYPE_ARTIST);
                pos = mPagerAdapter.mArtistsPosition;
                break;
            case MediaUtils.TYPE_GENRE:
                mPagerAdapter.clearLimiter(MediaUtils.TYPE_GENRE);
                pos = mPagerAdapter.mGenresPosition;
                break;
            case MediaUtils.TYPE_FILE:
                if (limiter.names.length > 1) {
                    File parentFile = ((File) limiter.data).getParentFile();
                    mPagerAdapter.setLimiter(FileSystemAdapter.buildLimiter(parentFile));
                } else {
                    mPagerAdapter.clearLimiter(MediaUtils.TYPE_FILE);
                }
                break;
            }
            if (pos == -1) {
                updateLimiterViews();
            } else {
                mViewPager.setCurrentItem(pos);
            }
        } else {
            finish();
        }
        break;
    case KeyEvent.KEYCODE_MENU:
        // We intercept these to avoid showing the activity-default menu
        mBottomBarControls.openMenu();
        break;
    default:
        return false;
    }

    return true;
}

---

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