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2014/10/16 ¤W¤È 08:20:47
android Programming Glossary: onkeydownOverride home and back button is case a boolean is true http://stackoverflow.com/questions/10025660/override-home-and-back-button-is-case-a-boolean-is-true super.dispatchKeyEvent event @Override public boolean onKeyDown int keyCode KeyEvent event TODO Auto generated method stub if.. KEYCODE_BACK return true else return super.onKeyDown keyCode event @Override public void onAttachedToWindow System.out.println..
Android: customize application's menu (e.g background color) http://stackoverflow.com/questions/1593529/android-customize-applications-menu-e-g-background-color You are welcome to intercept the MENU button via onKeyDown or something and render what you want but bear in mind that..
Android: Override back button to act like home button http://stackoverflow.com/questions/2000102/android-override-back-button-to-act-like-home-button method s the home button calls. @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK.. this.getClass .getName back button pressed return super.onKeyDown keyCode event Capture the back button press and then spoof a.. moveTaskToBack true as follows @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK..
Android: Prompt user to save changes when Back button is pressed http://stackoverflow.com/questions/2459848/android-prompt-user-to-save-changes-when-back-button-is-pressed on the right track what you should be doing is overriding onKeyDown and listening for the back key then overriding the default behavior.. overriding the default behavior @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK.. 0 do something on back. return true return super.onKeyDown keyCode event If you're only supporting Android 2.0 and higher..
Volume Control in android application http://stackoverflow.com/questions/2539264/volume-control-in-android-application same thing. Essentially the answer is don't override the onKeyDown and onKeyUp buttons. It's much better to simply use this one..
Android - How To Override the “Back” button so it doesn't Finish() my Activity? http://stackoverflow.com/questions/3141996/android-how-to-override-the-back-button-so-it-doesnt-finish-my-activity here is how I have tried so far @Override public boolean onKeyDown int keyCode KeyEvent event if Integer.parseInt android.os.Build.VERSION.SDK.. KeyEvent.KEYCODE_BACK event.getRepeatCount 0 Log.d CDA onKeyDown Called onBackPressed return super.onKeyDown keyCode event.. 0 Log.d CDA onKeyDown Called onBackPressed return super.onKeyDown keyCode event public void onBackPressed Log.d CDA onBackPressed..
How to hook into the Power button in Android? http://stackoverflow.com/questions/3703071/how-to-hook-into-the-power-button-in-android overrides to your activity class @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_POWER.. Needed to track long presses return true return super.onKeyDown keyCode event @Override public boolean onKeyLongPress int keyCode.. keyCode event Note It is worth noting that onKeyDown will fire multiple times before onKeyLongPress does so you may..
Intercept back button from soft keyboard http://stackoverflow.com/questions/3940127/intercept-back-button-from-soft-keyboard P.S. I know how intercept back button in other cases onKeyDown or onBackPressed but in this case it doesn't works only second..
Call method when home button pressed on android [closed] http://stackoverflow.com/questions/4783960/call-method-when-home-button-pressed-on-android in one of my Android Activities @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK.. Log.d Test Home button pressed return super.onKeyDown keyCode event But even though the KEYCODE_HOME is valid the..
http://stackoverflow.com/questions/5109988/is-there-a-way-to-hide-the-system-bar-in-android-3-0-its-an-internal-device-an the menu back search buttons by just returning false onKeyDown ... and registering the app as a default home launcher application..
Can I override the 'Home' button in my application? http://stackoverflow.com/questions/5547818/can-i-override-the-home-button-in-my-application home button as any other button @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_HOME..
http://stackoverflow.com/questions/5907369/file-upload-in-webview to go back to previous screen. @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK.. web.canGoBack web.goBack return true return super.onKeyDown keyCode event Also I want to add that the upload page like the..
Android WebView, how to code the back button? http://stackoverflow.com/questions/6077141/android-webview-how-to-code-the-back-button in my activities with WebViews @Override public boolean onKeyDown int keyCode KeyEvent event if event.getAction KeyEvent.ACTION_DOWN.. mWebView.goBack else finish return true return super.onKeyDown keyCode event Edit put this statement WebView myWebView inside..
Android imageView Zoom-in and Zoom-Out http://stackoverflow.com/questions/6650398/android-imageview-zoom-in-and-zoom-out 2 zoomControler image.draw canvas @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_DPAD_UP..
Android : how to capture a image of GPS location http://stackoverflow.com/questions/9905250/android-how-to-capture-a-image-of-gps-location Auto generated method stub return false public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK.. new Intent this GPSMainActivity.class finish return super.onKeyDown keyCode event I am getting this error 03 28 16 54 12.580 E..
Override home and back button is case a boolean is true http://stackoverflow.com/questions/10025660/override-home-and-back-button-is-case-a-boolean-is-true isLock mTextView.setText KEYCODE_HOME return true else return super.dispatchKeyEvent event @Override public boolean onKeyDown int keyCode KeyEvent event TODO Auto generated method stub if keyCode KeyEvent.KEYCODE_BACK isLock mTextView.setText KEYCODE_BACK.. method stub if keyCode KeyEvent.KEYCODE_BACK isLock mTextView.setText KEYCODE_BACK return true else return super.onKeyDown keyCode event @Override public void onAttachedToWindow System.out.println Onactivity attached isLock if isLock this.getWindow..
Android: customize application's menu (e.g background color) http://stackoverflow.com/questions/1593529/android-customize-applications-menu-e-g-background-color share improve this question Not with the built in menu framework. You are welcome to intercept the MENU button via onKeyDown or something and render what you want but bear in mind that users will be expecting it to look like the rest of the menus..
Android: Override back button to act like home button http://stackoverflow.com/questions/2000102/android-override-back-button-to-act-like-home-button Capture the back button press as below and then call whatever method s the home button calls. @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK Log.d this.getClass .getName back button pressed return super.onKeyDown.. keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK Log.d this.getClass .getName back button pressed return super.onKeyDown keyCode event Capture the back button press and then spoof a home button press. Capture the back button press then start.. simpler approach is to capture the Back button press and call moveTaskToBack true as follows @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK moveTaskToBack true return true return super.onKeyDown keyCode..
Android: Prompt user to save changes when Back button is pressed http://stackoverflow.com/questions/2459848/android-prompt-user-to-save-changes-when-back-button-is-pressed android share improve this question You're not quite on the right track what you should be doing is overriding onKeyDown and listening for the back key then overriding the default behavior @Override public boolean onKeyDown int keyCode KeyEvent.. is overriding onKeyDown and listening for the back key then overriding the default behavior @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK event.getRepeatCount 0 do something on back. return true return.. KeyEvent event if keyCode KeyEvent.KEYCODE_BACK event.getRepeatCount 0 do something on back. return true return super.onKeyDown keyCode event If you're only supporting Android 2.0 and higher they've added an onBackPressed you can use instead @Override..
Volume Control in android application http://stackoverflow.com/questions/2539264/volume-control-in-android-application was another question from a long time ago that asked the same thing. Essentially the answer is don't override the onKeyDown and onKeyUp buttons. It's much better to simply use this one line setVolumeControlStream AudioManager.STREAM_MUSIC in your..
Android - How To Override the “Back” button so it doesn't Finish() my Activity? http://stackoverflow.com/questions/3141996/android-how-to-override-the-back-button-so-it-doesnt-finish-my-activity the Back button to act the exact same as the Home button and here is how I have tried so far @Override public boolean onKeyDown int keyCode KeyEvent event if Integer.parseInt android.os.Build.VERSION.SDK 5 keyCode KeyEvent.KEYCODE_BACK event.getRepeatCount.. if Integer.parseInt android.os.Build.VERSION.SDK 5 keyCode KeyEvent.KEYCODE_BACK event.getRepeatCount 0 Log.d CDA onKeyDown Called onBackPressed return super.onKeyDown keyCode event public void onBackPressed Log.d CDA onBackPressed Called .. 5 keyCode KeyEvent.KEYCODE_BACK event.getRepeatCount 0 Log.d CDA onKeyDown Called onBackPressed return super.onKeyDown keyCode event public void onBackPressed Log.d CDA onBackPressed Called Intent setIntent new Intent Intent.ACTION_MAIN..
How to hook into the Power button in Android? http://stackoverflow.com/questions/3703071/how-to-hook-into-the-power-button-in-android To handle short and long presses add the following overrides to your activity class @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_POWER Do something here... event.startTracking Needed to track long.. KeyEvent.KEYCODE_POWER Do something here... event.startTracking Needed to track long presses return true return super.onKeyDown keyCode event @Override public boolean onKeyLongPress int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_POWER Do something.. Do something here... return true return super.onKeyLongPress keyCode event Note It is worth noting that onKeyDown will fire multiple times before onKeyLongPress does so you may want to trigger on onKeyUp instead or other logic to prevent..
Intercept back button from soft keyboard http://stackoverflow.com/questions/3940127/intercept-back-button-from-soft-keyboard press of back button without creating custom InputMethodService P.S. I know how intercept back button in other cases onKeyDown or onBackPressed but in this case it doesn't works only second press of back button is intercepted. android share improve..
Call method when home button pressed on android [closed] http://stackoverflow.com/questions/4783960/call-method-when-home-button-pressed-on-android home button pressed on android closed So I have this method in one of my Android Activities @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK Log.d Test Back button pressed else if keyCode KeyEvent.KEYCODE_HOME.. Log.d Test Back button pressed else if keyCode KeyEvent.KEYCODE_HOME Log.d Test Home button pressed return super.onKeyDown keyCode event But even though the KEYCODE_HOME is valid the log method never fires. This works for the back button though...
http://stackoverflow.com/questions/5109988/is-there-a-way-to-hide-the-system-bar-in-android-3-0-its-an-internal-device-an below you could make an application full screen and then hijack the menu back search buttons by just returning false onKeyDown ... and registering the app as a default home launcher application that way there's no way to exit the application. In Android..
Can I override the 'Home' button in my application? http://stackoverflow.com/questions/5547818/can-i-override-the-home-button-in-my-application share improve this question Hi again You can override the home button as any other button @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_HOME Toast.makeText this You pressed the home button Toast.LENGTH_LONG..
http://stackoverflow.com/questions/5907369/file-upload-in-webview newConfig To handle Back key press event for WebView to go back to previous screen. @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK web.canGoBack web.goBack return true return super.onKeyDown.. int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK web.canGoBack web.goBack return true return super.onKeyDown keyCode event Also I want to add that the upload page like the one in this example wont work on 4 versions since it has..
Android WebView, how to code the back button? http://stackoverflow.com/questions/6077141/android-webview-how-to-code-the-back-button share improve this question I use something like this in my activities with WebViews @Override public boolean onKeyDown int keyCode KeyEvent event if event.getAction KeyEvent.ACTION_DOWN switch keyCode case KeyEvent.KEYCODE_BACK if mWebView.canGoBack.. case KeyEvent.KEYCODE_BACK if mWebView.canGoBack true mWebView.goBack else finish return true return super.onKeyDown keyCode event Edit put this statement WebView myWebView inside of your Activity before the onCreate method and you should..
Android imageView Zoom-in and Zoom-Out http://stackoverflow.com/questions/6650398/android-imageview-zoom-in-and-zoom-out 2 zoomControler getWidth 2 zoomControler getHeight 2 zoomControler image.draw canvas @Override public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_DPAD_UP zoom in zoomControler 10 if keyCode KeyEvent.KEYCODE_DPAD_DOWN..
Android : how to capture a image of GPS location http://stackoverflow.com/questions/9905250/android-how-to-capture-a-image-of-gps-location .show @Override protected boolean isRouteDisplayed TODO Auto generated method stub return false public boolean onKeyDown int keyCode KeyEvent event if keyCode KeyEvent.KEYCODE_BACK startActivity new Intent this GPSMainActivity.class finish.. event if keyCode KeyEvent.KEYCODE_BACK startActivity new Intent this GPSMainActivity.class finish return super.onKeyDown keyCode event I am getting this error 03 28 16 54 12.580 E AndroidRuntime 30010 java.lang.RuntimeException Unable to start..
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