Example usage for android.view KeyEvent KEYCODE_BACK

List of usage examples for android.view KeyEvent KEYCODE_BACK

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  4. android.view.*
  5. KeyEvent
  6. 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.

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Document

Key code constant: Back key.

Usage

From source file:com.gsma.rcs.ri.sharing.video.OutgoingVideoSharing.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (KeyEvent.KEYCODE_BACK == keyCode) {
        if (LogUtils.isActive) {
            Log.d(LOGTAG, "Back key pressed");
        }/* ww  w .  j av  a2 s .  c o m*/
        try {
            if (mVideoSharing == null || !RcsSessionUtil.isAllowedToAbortVideoSharingSession(mVideoSharing)) {
                finish();
                return true;
            }
            AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle(R.string.label_confirm_close);
            builder.setPositiveButton(R.string.label_ok, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    quitSession();
                }
            });
            builder.setNegativeButton(R.string.label_cancel, new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                }
            });
            builder.setCancelable(true);
            registerDialog(builder.show());
            return true;

        } catch (RcsServiceException e) {
            showException(e);
        }
    }
    return super.onKeyDown(keyCode, event);
}

From source file:com.andrew.apolloMod.activities.QueryBrowserActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        finish();/*from  w ww  .j a  v a 2s . c  o m*/
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

From source file:com.dldzkj.app.renxing.MainActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_DOWN) {
        if ((System.currentTimeMillis() - exitTime) > 2000) {
            Toast.makeText(getApplicationContext(), "??", Toast.LENGTH_SHORT).show();
            exitTime = System.currentTimeMillis();
        } else {/*w  ww  .j a v  a 2 s  .c  o m*/
            System.exit(0);
            finish();
        }
        return true;
    }
    return super.onKeyDown(keyCode, event);
}

From source file:br.com.thinkti.android.filechooserfrag.fragFileChooser.java

public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        if ((!currentDir.getName().equals("sdcard")) && (currentDir.getParentFile() != null)) {
            AlertDialog.Builder A = new AlertDialog.Builder(getActivity());
            A.setPositiveButton(getString(R.string.yes), new AlertDialog.OnClickListener() {
                @Override/*from ww w. ja v  a 2s.c  o m*/
                public void onClick(DialogInterface dialog, int which) {
                    _main.mPager.setCurrentItem(_MainActivity.fragID);
                }
            });
            A.setNegativeButton(getString(R.string.no), new AlertDialog.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    currentDir = currentDir.getParentFile();
                    fill(currentDir);
                }
            });
            A.setMessage(getString(R.string.close));
            A.setTitle(_main.getString((R.string.question)));
            A.show();

        } else {
            _main.mPager.setCurrentItem(_MainActivity.fragID);
        }
        return false;
    }
    return true;
}

From source file:com.sdspikes.fireworks.FireworksActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent e) {
    if (keyCode == KeyEvent.KEYCODE_BACK && mCurScreen == R.id.screen_game) {
        leaveRoom();//from   w  w w.j  a  va2 s .co m
        return true;
    }
    return super.onKeyDown(keyCode, e);
}

From source file:com.hichinaschool.flashcards.anki.CardBrowser.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
        // Log.i(AnkiDroidApp.TAG, "CardBrowser - onBackPressed()");
        if (mSearchEditText.getText().length() == 0) {
            closeCardBrowser(Activity.RESULT_OK);
        } else {/*from   w  w  w  .  j a va 2s  .c  o m*/
            mSearchEditText.setText("");
            mSearchEditText.setHint(R.string.downloaddeck_search);
            mSelectedTags.clear();
        }
        return true;
    }

    return super.onKeyDown(keyCode, event);
}

From source file:com.google.appinventor.components.runtime.Form.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (keyCode == KeyEvent.KEYCODE_BACK) {
        if (!BackPressed()) {
            boolean handled = super.onKeyDown(keyCode, event);
            AnimationUtil.ApplyCloseScreenAnimation(this, closeAnimType);
            return handled;
        } else {/*from  w ww  . j  av  a 2 s .com*/
            return true;
        }
    }
    return super.onKeyDown(keyCode, event);
}

From source file:com.kanchi.periyava.old.Activity.MainActivity.java

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
    if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.ECLAIR
            && keyCode == KeyEvent.KEYCODE_BACK && event.getRepeatCount() == 0) {
        // Take care of calling this method on earlier versions of
        // the platform where it doesn't exist.
        getFragmentManager().popBackStack();
        onBackPressed();/* w  w  w.jav a 2s .  c  o m*/
    }

    return super.onKeyDown(keyCode, event);
}

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

@Override
public boolean onKeyDown(int keycode, KeyEvent event) {

    if (keycode == KeyEvent.KEYCODE_BACK && mUseBackKey && !mCurrentPath.equals("/")) {
        File file = new File(mCurrentPath);
        navigateTo(file.getParent());/*w w w.  j a va  2s  .com*/

        // go to the top of the ListView
        mListView.setSelection(0);
        return true;
    } else if (keycode == KeyEvent.KEYCODE_BACK && mUseBackKey && mCurrentPath.equals("/")) {
        Toast.makeText(Browser.this, getString(R.string.pressbackagaintoquit), Toast.LENGTH_SHORT).show();

        mUseBackKey = false;
        return false;
    } else if (keycode == KeyEvent.KEYCODE_BACK && !mUseBackKey && mCurrentPath.equals("/")) {
        finish();
        return false;
    }

    return super.onKeyDown(keycode, event);
}

From source file:com.gcloud.gaadi.ui.sleepbot.datetimepicker.time.TimePickerDialog.java

/**
 * For keyboard mode, processes key events.
 *
 * @param keyCode the pressed key.// ww w.  j  a  va  2s. c  o  m
 * @return true if the key was successfully processed, false otherwise.
 */
private boolean processKeyUp(int keyCode) {
    if (keyCode == KeyEvent.KEYCODE_ESCAPE || keyCode == KeyEvent.KEYCODE_BACK) {
        dismiss();
        return true;
    } else if (keyCode == KeyEvent.KEYCODE_TAB) {
        if (mInKbMode) {
            if (isTypedTimeFullyLegal()) {
                finishKbMode(true);
            }
            return true;
        }
    } else if (keyCode == KeyEvent.KEYCODE_ENTER) {
        if (mInKbMode) {
            if (!isTypedTimeFullyLegal()) {
                return true;
            }
            finishKbMode(false);
        }
        if (mCallback != null) {
            mCallback.onTimeSet(mTimePicker, mTimePicker.getHours(), mTimePicker.getMinutes());
        }
        dismiss();
        return true;
    } else if (keyCode == KeyEvent.KEYCODE_DEL) {
        if (mInKbMode) {
            if (!mTypedTimes.isEmpty()) {
                int deleted = deleteLastTypedKey();
                String deletedKeyStr;
                if (deleted == getAmOrPmKeyCode(AM)) {
                    deletedKeyStr = mAmText;
                } else if (deleted == getAmOrPmKeyCode(PM)) {
                    deletedKeyStr = mPmText;
                } else {
                    deletedKeyStr = String.format("%d", getValFromKeyCode(deleted));
                }
                Utils.tryAccessibilityAnnounce(mTimePicker, String.format(mDeletedKeyFormat, deletedKeyStr));
                updateDisplay(true);
            }
        }
    } else if (keyCode == KeyEvent.KEYCODE_0 || keyCode == KeyEvent.KEYCODE_1 || keyCode == KeyEvent.KEYCODE_2
            || keyCode == KeyEvent.KEYCODE_3 || keyCode == KeyEvent.KEYCODE_4 || keyCode == KeyEvent.KEYCODE_5
            || keyCode == KeyEvent.KEYCODE_6 || keyCode == KeyEvent.KEYCODE_7 || keyCode == KeyEvent.KEYCODE_8
            || keyCode == KeyEvent.KEYCODE_9
            || (!mIs24HourMode && (keyCode == getAmOrPmKeyCode(AM) || keyCode == getAmOrPmKeyCode(PM)))) {
        if (!mInKbMode) {
            if (mTimePicker == null) {
                // Something's wrong, because time picker should definitely not be null.
                GCLog.e("Unable to initiate keyboard mode, TimePicker was null.");
                return true;
            }
            mTypedTimes.clear();
            tryStartingKbMode(keyCode);
            return true;
        }
        // We're already in keyboard mode.
        if (addKeyIfLegal(keyCode)) {
            updateDisplay(false);
        }
        return true;
    }
    return false;
}