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2014/10/16 ¤W¤È 08:09:26
android Programming Glossary: action_downhow to generate zoom/pinch gesture for testing for Android http://stackoverflow.com/questions/11523423/how-to-generate-zoom-pinch-gesture-for-testing-for-android event MotionEvent.obtain downTime eventTime MotionEvent.ACTION_DOWN 1 prop_start0 pointerCoords_start0 0 0 0 0 0 0 0 0 inst.sendPointerSync.. gesture the downTime is the same for all the events i. ACTION_DOWN of one start point ii. ACTION_POINTER_2_DOWN of two start points.. 1 pc2 events sequence of zoom gesture 1. send ACTION_DOWN event of one start point 2. send ACTION_POINTER_2_DOWN of two..
http://stackoverflow.com/questions/2447564/detect-touch-on-bitmap or getRawX int y event.getY switch action case MotionEvent.ACTION_DOWN if x xOfYourBitmap x xOfYourBitmap yourBitmap.getWidth y yOfYourBitmap.. set a boolean that the touch started inside the bitmap on ACTION_DOWN and then check on ACTION_UP that you're still inside the bitmap...
What is meaning of boolean value returned from an event-handling method in Android http://stackoverflow.com/questions/3756383/what-is-meaning-of-boolean-value-returned-from-an-event-handling-method-in-andro share improve this question If you return true from an ACTION_DOWN event you are interested in the rest of the events in that gesture... final ACTION_UP or ACTION_CANCEL . Returning false from an ACTION_DOWN means you do not want the event and other views will have the..
Detect touch press vs long press vs movement? http://stackoverflow.com/questions/4324362/detect-touch-press-vs-long-press-vs-movement event int action event.getAction if action MotionEvent.ACTION_DOWN touchStarted true else if action MotionEvent.ACTION_MOVE movement.. introducing a new variable mTouchDelay which I set to 0 on ACTION_DOWN increase in MOVE and if it's 3 in MOVE I execute my move code...
Drag and drop images in android http://stackoverflow.com/questions/4524288/drag-and-drop-images-in-android switch event.getAction case MotionEvent.ACTION_DOWN break case MotionEvent.ACTION_MOVE int x_cord int event.getRawX.. switch event.getAction case MotionEvent.ACTION_DOWN break case MotionEvent.ACTION_MOVE int x_cord int event.getRawX.. the image object. So what you could do is to check in the ACTION_DOWN phases you've blocked off to make sure the touch is in the bounds..
How do I respond to a tap on an Android MapView, but ignore pinch-zoom? http://stackoverflow.com/questions/4806061/how-do-i-respond-to-a-tap-on-an-android-mapview-but-ignore-pinch-zoom so far. The code follows the motion events. When we get an ACTION_DOWN event it marks the isPinch flag as false we don't know if it's.. int fingers e.getPointerCount if e.getAction MotionEvent.ACTION_DOWN isPinch false Touch DOWN don't know if it's a pinch yet if e.getAction..
Android WebView Javascript getSelection http://stackoverflow.com/questions/4892111/android-webview-javascript-getselection any other means in JavaScript. I am working on making the ACTION_DOWN of the LongPress which triggers selection and the drag and ACTION_UP..
enable/disable zoom in Android WebView http://stackoverflow.com/questions/5125851/enable-disable-zoom-in-android-webview full code for the solution if ev.getAction MotionEvent.ACTION_DOWN ev.getAction MotionEvent.ACTION_POINTER_DOWN ev.getAction.. WebView and overriding OnTouchEvent . In OnTouchEvent for ACTION_DOWN I check how many pointers there are using MotionEvent.getPointerCount..
How to Capture soft keyboard input in a View? http://stackoverflow.com/questions/5419766/how-to-capture-soft-keyboard-input-in-a-view Log.d TAG onKeyListener if event.getAction KeyEvent.ACTION_DOWN Perform action on key press Log.d TAG ACTION_DOWN return.. Perform action on key press Log.d TAG ACTION_DOWN return true return false @Override public boolean onTouchEvent..
onTouchListener for entire screen http://stackoverflow.com/questions/5648985/ontouchlistener-for-entire-screen onTouch method. I ran into several problems making both ACTION_DOWN and ACTION_MOVE activate the buttons but I finally got it working...
Touch Release method in Android http://stackoverflow.com/questions/5765904/touch-release-method-in-android type. But inside onTouchEvent it always gives the action ACTION_DOWN . Do you know how to capture the touch relase event. public.. event if event.getAction android.view.MotionEvent.ACTION_DOWN Log.d TouchTest Touch down else if event.getAction android.view.MotionEvent.ACTION_UP..
Android: How to create a MotionEvent? http://stackoverflow.com/questions/5867059/android-how-to-create-a-motionevent . action The kind of action being performed one of either ACTION_DOWN ACTION_MOVE ACTION_UP or ACTION_CANCEL . x The X coordinate..
http://stackoverflow.com/questions/6785068/android-action-move-threshold or eventually a stylus. I have that part working. On ACTION_DOWN starts drawing on ACTION_MOVE adds line segments on ACTION_UP.. on ACTION_UP finishes line. The problem is that after ACTION_DOWN apparently the pointer needs to move more than 10 pixels away..
Android TextView Linkify intercepts with parent View gestures http://stackoverflow.com/questions/7236840/android-textview-linkify-intercepts-with-parent-view-gestures to ACTION_MOVE but the scrollview's gesture needs the ACTION_DOWN and ACTION_UP event to function. Is there a way to achieve that.. the specific parent ScrollView needed the whole sequence ACTION_DOWN ACTION_MOVE ACTION_UP to perform sweep detection . So the solution.. if action MotionEvent.ACTION_UP action MotionEvent.ACTION_DOWN int x int event.getX int y int event.getY x widget.getTotalPaddingLeft..
Detecting a long press with Android http://stackoverflow.com/questions/7919865/detecting-a-long-press-with-android sort of work around method. Something like registering ACTION_DOWN and seeing how long it is before ACTION_UP. How do you detect..
ListView: TextView with LinkMovementMethod makes list item unclickable? http://stackoverflow.com/questions/8558732/listview-textview-with-linkmovementmethod-makes-list-item-unclickable if action MotionEvent.ACTION_UP action MotionEvent.ACTION_DOWN int x int event.getX int y int event.getY x widget.getTotalPaddingLeft.. link 0 .onClick widget else if action MotionEvent.ACTION_DOWN Selection.setSelection buffer buffer.getSpanStart link 0 .. if user actually hits link. only in ACTION_UP and ACTION_DOWN events and TextViewFixTouchConsume.onTouchEvent returns true..
how to generate zoom/pinch gesture for testing for Android http://stackoverflow.com/questions/11523423/how-to-generate-zoom-pinch-gesture-for-testing-for-android end0 end1 Instrumentation inst action down event MotionEvent event MotionEvent.obtain downTime eventTime MotionEvent.ACTION_DOWN 1 prop_start0 pointerCoords_start0 0 0 0 0 0 0 0 0 inst.sendPointerSync event action pointer 2 down event event MotionEvent.obtain.. events may be rejected. Here is a valid event sequence of zoom gesture the downTime is the same for all the events i. ACTION_DOWN of one start point ii. ACTION_POINTER_2_DOWN of two start points iii.ACTION_MOVE of two middle points iv. ACTION_POINTER_2_UP.. eventY2 pc2.pressure 1 pc2.size 1 pointerCoords 0 pc1 pointerCoords 1 pc2 events sequence of zoom gesture 1. send ACTION_DOWN event of one start point 2. send ACTION_POINTER_2_DOWN of two start points 3. send ACTION_MOVE of two middle points 4. repeat..
http://stackoverflow.com/questions/2447564/detect-touch-on-bitmap event int action event.getAction int x event.getX or getRawX int y event.getY switch action case MotionEvent.ACTION_DOWN if x xOfYourBitmap x xOfYourBitmap yourBitmap.getWidth y yOfYourBitmap y yOfYourBitmap yourBitmap.getHeight tada if this..
What is meaning of boolean value returned from an event-handling method in Android http://stackoverflow.com/questions/3756383/what-is-meaning-of-boolean-value-returned-from-an-event-handling-method-in-andro have the same meaning android events touch return listener share improve this question If you return true from an ACTION_DOWN event you are interested in the rest of the events in that gesture. A gesture in this case means all events until the final.. gesture. A gesture in this case means all events until the final ACTION_UP or ACTION_CANCEL . Returning false from an ACTION_DOWN means you do not want the event and other views will have the opportunity to handle it. If you have overlapping views this..
Detect touch press vs long press vs movement? http://stackoverflow.com/questions/4324362/detect-touch-press-vs-long-press-vs-movement image private int x y public boolean onTouch View v MotionEvent event int action event.getAction if action MotionEvent.ACTION_DOWN touchStarted true else if action MotionEvent.ACTION_MOVE movement cancel the touch press touchStarted false x event.getX.. around the image instead. I hacked around this a bit my introducing a new variable mTouchDelay which I set to 0 on ACTION_DOWN increase in MOVE and if it's 3 in MOVE I execute my move code. But I have a feeling this isn't really the way to go. I also..
Drag and drop images in android http://stackoverflow.com/questions/4524288/drag-and-drop-images-in-android findViewById R.id.ball layoutParams LayoutParams ball.getLayoutParams switch event.getAction case MotionEvent.ACTION_DOWN break case MotionEvent.ACTION_MOVE int x_cord int event.getRawX int y_cord int event.getRawY if x_cord windowwidth x_cord.. findViewById R.id.ball1 layoutParams1 LayoutParams ball1.getLayoutParams switch event.getAction case MotionEvent.ACTION_DOWN break case MotionEvent.ACTION_MOVE int x_cord int event.getRawX int y_cord int event.getRawY if x_cord windowwidth x_cord.. event will be declared even if you are touching outside of the image object. So what you could do is to check in the ACTION_DOWN phases you've blocked off to make sure the touch is in the bounds of the object. You could then set a flag to tell the system..
How do I respond to a tap on an Android MapView, but ignore pinch-zoom? http://stackoverflow.com/questions/4806061/how-do-i-respond-to-a-tap-on-an-android-mapview-but-ignore-pinch-zoom and trying various approaches this one is working well so far. The code follows the motion events. When we get an ACTION_DOWN event it marks the isPinch flag as false we don't know if it's a pinch or not yet but as soon as we get a touch event i.e... public boolean onTouchEvent MotionEvent e MapView mapView int fingers e.getPointerCount if e.getAction MotionEvent.ACTION_DOWN isPinch false Touch DOWN don't know if it's a pinch yet if e.getAction MotionEvent.ACTION_MOVE fingers 2 isPinch true Two..
Android WebView Javascript getSelection http://stackoverflow.com/questions/4892111/android-webview-javascript-getselection have a selection to get via JavaScript's getSelection or any other means in JavaScript. I am working on making the ACTION_DOWN of the LongPress which triggers selection and the drag and ACTION_UP of the release from drag work for me via JavaScript..
enable/disable zoom in Android WebView http://stackoverflow.com/questions/5125851/enable-disable-zoom-in-android-webview know the same problems are on HTC devices UPDATE Here is almost full code for the solution if ev.getAction MotionEvent.ACTION_DOWN ev.getAction MotionEvent.ACTION_POINTER_DOWN ev.getAction MotionEvent.ACTION_POINTER_1_DOWN ev.getAction MotionEvent.ACTION_POINTER_2_DOWN.. what you are asking. What I ended up doing was subclassing WebView and overriding OnTouchEvent . In OnTouchEvent for ACTION_DOWN I check how many pointers there are using MotionEvent.getPointerCount . If there is more than one pointer I call setSupportZoom..
How to Capture soft keyboard input in a View? http://stackoverflow.com/questions/5419766/how-to-capture-soft-keyboard-input-in-a-view public boolean onKey View v int keyCode KeyEvent event Log.d TAG onKeyListener if event.getAction KeyEvent.ACTION_DOWN Perform action on key press Log.d TAG ACTION_DOWN return true return false @Override public boolean onTouchEvent.. event Log.d TAG onKeyListener if event.getAction KeyEvent.ACTION_DOWN Perform action on key press Log.d TAG ACTION_DOWN return true return false @Override public boolean onTouchEvent MotionEvent event super.onTouchEvent event Log.d TAG..
onTouchListener for entire screen http://stackoverflow.com/questions/5648985/ontouchlistener-for-entire-screen I've now managed to resolve the issue by using the regular onTouch method. I ran into several problems making both ACTION_DOWN and ACTION_MOVE activate the buttons but I finally got it working. For other people reading this onInterceptTouchEvent could..
Touch Release method in Android http://stackoverflow.com/questions/5765904/touch-release-method-in-android Android. I have seen that event.getAction returns the action type. But inside onTouchEvent it always gives the action ACTION_DOWN . Do you know how to capture the touch relase event. public boolean onTouchEvent MotionEvent event Log.d TAG event.getAction.. new OnTouchListener public boolean onTouch View view MotionEvent event if event.getAction android.view.MotionEvent.ACTION_DOWN Log.d TouchTest Touch down else if event.getAction android.view.MotionEvent.ACTION_UP Log.d TouchTest Touch up share..
Android: How to create a MotionEvent? http://stackoverflow.com/questions/5867059/android-how-to-create-a-motionevent This must be obtained from SystemClock.uptimeMillis . action The kind of action being performed one of either ACTION_DOWN ACTION_MOVE ACTION_UP or ACTION_CANCEL . x The X coordinate of this event. y The Y coordinate of this event. metaState The..
http://stackoverflow.com/questions/6785068/android-action-move-threshold an app that involves writing on the screen using one's finger or eventually a stylus. I have that part working. On ACTION_DOWN starts drawing on ACTION_MOVE adds line segments on ACTION_UP finishes line. The problem is that after ACTION_DOWN apparently.. On ACTION_DOWN starts drawing on ACTION_MOVE adds line segments on ACTION_UP finishes line. The problem is that after ACTION_DOWN apparently the pointer needs to move more than 10 pixels away from where it started basically a 20x20 box around the starting..
Android TextView Linkify intercepts with parent View gestures http://stackoverflow.com/questions/7236840/android-textview-linkify-intercepts-with-parent-view-gestures gestures I tried to override ontouchEvent and return false to ACTION_MOVE but the scrollview's gesture needs the ACTION_DOWN and ACTION_UP event to function. Is there a way to achieve that android gesture linkify share improve this question .. has. Although touchEvent can be dispached to the parent the specific parent ScrollView needed the whole sequence ACTION_DOWN ACTION_MOVE ACTION_UP to perform sweep detection . So the solution to my problem is after Linkify to remove the textView's.. Spannable buffer Spannable text int action event.getAction if action MotionEvent.ACTION_UP action MotionEvent.ACTION_DOWN int x int event.getX int y int event.getY x widget.getTotalPaddingLeft y widget.getTotalPaddingTop x widget.getScrollX..
Detecting a long press with Android http://stackoverflow.com/questions/7919865/detecting-a-long-press-with-android if I can't find much in the dev docs then it will be some sort of work around method. Something like registering ACTION_DOWN and seeing how long it is before ACTION_UP. How do you detect long presses on android using opengl es java android touchscreen..
ListView: TextView with LinkMovementMethod makes list item unclickable? http://stackoverflow.com/questions/8558732/listview-textview-with-linkmovementmethod-makes-list-item-unclickable Spannable buffer MotionEvent event int action event.getAction if action MotionEvent.ACTION_UP action MotionEvent.ACTION_DOWN int x int event.getX int y int event.getY x widget.getTotalPaddingLeft y widget.getTotalPaddingTop x widget.getScrollX.. if link.length 0 if action MotionEvent.ACTION_UP link 0 .onClick widget else if action MotionEvent.ACTION_DOWN Selection.setSelection buffer buffer.getSpanStart link 0 buffer.getSpanEnd link 0 if widget instanceof TextViewFixTouchConsume.. This MovementMethod raises a flag in TextViewFixTouchConsume if user actually hits link. only in ACTION_UP and ACTION_DOWN events and TextViewFixTouchConsume.onTouchEvent returns true only if user actually hit link. But that's not all The third..
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