BaseGestureDetector

java.lang.Object
- com.palmap.gl.gestures.BaseGestureDetector

直接已知子类:: MoveGestureDetector, TwoFingerGestureDetector

public abstract class BaseGestureDetector
extends java.lang.Object

字段概要

字段
限定符和类型	字段和说明
`protected android.content.Context`	`context`
`protected android.view.MotionEvent`	`currEvent`
`protected float`	`currPressure`
`protected boolean`	`gestureInProgress`
`protected static float`	`PRESSURE_THRESHOLD` This value is the threshold ratio between the previous combined pressure and the current combined pressure.
`protected android.view.MotionEvent`	`prevEvent`
`protected float`	`prevPressure`
`protected long`	`timeDelta`

构造器概要

构造器
构造器和说明

BaseGestureDetector(android.content.Context context)

构造器
构造器和说明
`BaseGestureDetector(android.content.Context context)`

方法概要

所有方法实例方法抽象方法具体方法
限定符和类型	方法和说明
`long`	`getEventTime()` Return the event time of the current GestureDetector event being processed.
`long`	`getTimeDelta()` Return the time difference in milliseconds between the previous accepted GestureDetector event and the current GestureDetector event.
`protected abstract void`	`handleInProgressEvent(int actionCode, android.view.MotionEvent event)` Called when the current event occurred when a gesture IS in progress.
`protected abstract void`	`handleStartProgressEvent(int actionCode, android.view.MotionEvent event)` Called when the current event occurred when NO gesture is in progress yet.
`boolean`	`isInProgress()` Returns `true` if a gesture is currently in progress.
`boolean`	`onTouchEvent(android.view.MotionEvent event)` All gesture detectors need to be called through this method to be able to detect gestures.
`protected void`	`resetState()`
`protected void`	`updateStateByEvent(android.view.MotionEvent curr)`

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - context
```
protected final android.content.Context context
```
  - gestureInProgress
```
protected boolean gestureInProgress
```
  - prevEvent
```
protected android.view.MotionEvent prevEvent
```
  - currEvent
```
protected android.view.MotionEvent currEvent
```
  - currPressure
```
protected float currPressure
```
  - prevPressure
```
protected float prevPressure
```
  - timeDelta
```
protected long timeDelta
```
  - PRESSURE_THRESHOLD
```
protected static final float PRESSURE_THRESHOLD
```
    This value is the threshold ratio between the previous combined pressure and the current combined pressure. When pressure decreases rapidly between events the position values can often be imprecise, as it usually indicates that the user is in the process of lifting a pointer off of the device. This value was tuned experimentally.
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - BaseGestureDetector
```
public BaseGestureDetector(android.content.Context context)
```
- 方法详细资料
  - onTouchEvent
```
public boolean onTouchEvent(android.view.MotionEvent event)
```
    All gesture detectors need to be called through this method to be able to detect gestures. This method delegates work to handler methods (handleStartProgressEvent, handleInProgressEvent) implemented in extending classes.
    
    参数:
    
    event - MotionEvent
    
    返回:
    
    true as handled
  - handleStartProgressEvent
```
protected abstract void handleStartProgressEvent(int actionCode,
                                                 android.view.MotionEvent event)
```
    Called when the current event occurred when NO gesture is in progress yet. The handling in this implementation may set the gesture in progress (via gestureInProgress) or out of progress
    
    参数:
    
    actionCode - Action Code from MotionEvent
    
    event - MotionEvent
  - handleInProgressEvent
```
protected abstract void handleInProgressEvent(int actionCode,
                                              android.view.MotionEvent event)
```
    Called when the current event occurred when a gesture IS in progress. The handling in this implementation may set the gesture out of progress (via gestureInProgress).
    
    参数:
    
    actionCode - Action Code from MotionEvent
    
    event - MotionEvent
  - updateStateByEvent
```
protected void updateStateByEvent(android.view.MotionEvent curr)
```
  - resetState
```
protected void resetState()
```
  - isInProgress
```
public boolean isInProgress()
```
    Returns true if a gesture is currently in progress.
    
    返回:
    
    true if a gesture is currently in progress, false otherwise.
  - getTimeDelta
```
public long getTimeDelta()
```
    Return the time difference in milliseconds between the previous accepted GestureDetector event and the current GestureDetector event.
    
    返回:
    
    Time difference since the last move event in milliseconds.
  - getEventTime
```
public long getEventTime()
```
    Return the event time of the current GestureDetector event being processed.
    
    返回:
    
    Current GestureDetector event time in milliseconds.

类 BaseGestureDetector

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

context

gestureInProgress

prevEvent

currEvent

currPressure

prevPressure

timeDelta

PRESSURE_THRESHOLD

构造器详细资料

BaseGestureDetector

方法详细资料

onTouchEvent

handleStartProgressEvent

handleInProgressEvent

updateStateByEvent

resetState

isInProgress

getTimeDelta

getEventTime