forked from upstream-mirrors/OpenTracks
Clean up LocationListenerPolicy.
This commit is contained in:
+12
-19
@@ -19,41 +19,34 @@ package com.google.android.apps.mytracks.services;
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/**
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* This is a simple location listener policy that will always dictate the same
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* polling interval.
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*
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*
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* @author Sandor Dornbush
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*/
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public class AbsoluteLocationListenerPolicy implements LocationListenerPolicy {
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/**
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* The interval to request for gps signal.
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*/
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private final long interval;
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/**
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* @param interval The interval to request for gps signal
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* Constructor.
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*
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* @param interval the interval to request for gps signal
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*/
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public AbsoluteLocationListenerPolicy(final long interval) {
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public AbsoluteLocationListenerPolicy(long interval) {
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this.interval = interval;
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}
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/**
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* @return The interval given in the constructor
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*/
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@Override
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public long getDesiredPollingInterval() {
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return interval;
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}
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/**
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* Discards the idle time.
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*/
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public void updateIdleTime(long idleTime) {
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}
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/**
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* Returns the minimum distance between updates.
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* Get all updates to properly measure moving time.
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*/
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@Override
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public int getMinDistance() {
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return 0;
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}
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@Override
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public void updateIdleTime(long idleTime) {
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// Ignore
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}
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}
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+30
-39
@@ -16,67 +16,58 @@
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package com.google.android.apps.mytracks.services;
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/**
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* A LocationListenerPolicy that will change based on how long the user has been
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* stationary.
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*
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* This policy will dictate a policy based on a min, max and idle time.
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* The policy will dictate an interval bounded by min and max whic is half of
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* the idle time.
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*
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* A {@link LocationListenerPolicy} that will change based on how long the user
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* has been stationary. This policy will dictate a policy based on a min, max
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* and idle time. The policy will dictate an interval bounded by min and max,
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* and is half of the idle time.
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*
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* @author Sandor Dornbush
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*/
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public class AdaptiveLocationListenerPolicy implements LocationListenerPolicy {
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/**
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* Smallest interval this policy will dictate, in milliseconds.
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*/
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private final long minInterval;
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/**
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* Largest interval this policy will dictate, in milliseconds.
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*/
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private final long maxInterval;
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private final int minDistance;
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/**
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* The time the user has been at the current location, in milliseconds.
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*/
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// The time the user has been idle at the current location, in milliseconds.
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private long idleTime;
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/**
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* Creates a policy that will be bounded by the given min and max.
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*
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* @param min Smallest interval this policy will dictate, in milliseconds
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* @param max Largest interval this policy will dictate, in milliseconds
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* Creates a policy that will be bounded by the given minInterval and
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* maxInterval.
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*
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* @param minInterval the smallest interval this policy will dictate, in
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* milliseconds
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* @param maxInterval the largest interval this policy will dictate, in
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* milliseconds
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* @param minDistance the minimum distance in meters
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*/
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public AdaptiveLocationListenerPolicy(long min, long max, int minDistance) {
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this.minInterval = min;
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this.maxInterval = max;
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public AdaptiveLocationListenerPolicy(long minInterval, long maxInterval, int minDistance) {
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this.minInterval = minInterval;
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this.maxInterval = maxInterval;
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this.minDistance = minDistance;
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}
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/**
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* @return An interval bounded by min and max which is half of the idle time
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/*
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* Returns an interval half of the idle time, but bounded by minInteval and
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* maxInterval.
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*/
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@Override
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public long getDesiredPollingInterval() {
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long desiredInterval = idleTime / 2;
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// Round to avoid setting the interval too often.
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// Round to second to avoid setting the interval too often
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desiredInterval = (desiredInterval / 1000) * 1000;
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return Math.max(Math.min(maxInterval, desiredInterval),
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minInterval);
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return Math.max(Math.min(maxInterval, desiredInterval), minInterval);
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}
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public void updateIdleTime(long newIdleTime) {
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this.idleTime = newIdleTime;
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}
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/**
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* Returns the minimum distance between updates.
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*/
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@Override
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public int getMinDistance() {
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return minDistance;
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}
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@Override
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public void updateIdleTime(long newIdleTime) {
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idleTime = newIdleTime;
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}
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}
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+11
-12
@@ -17,19 +17,18 @@
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package com.google.android.apps.mytracks.services;
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/**
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* This is an interface for classes that will manage the location listener policy.
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* Different policy options are:
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* Absolute
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* Addaptive
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*
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* This is an interface for classes that will manage the location listener
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* policy. Different policy options are: {@link AbsoluteLocationListenerPolicy}
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* and {@link AdaptiveLocationListenerPolicy}.
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*
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* @author Sandor Dornbush
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*/
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public interface LocationListenerPolicy {
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/**
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* Returns the polling time this policy would like at this time.
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*
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* @return The polling that this policy dictates
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* Returns the polling interval this policy would like at this moment.
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*
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* @return the polling interval
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*/
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public long getDesiredPollingInterval();
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@@ -39,10 +38,10 @@ public interface LocationListenerPolicy {
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public int getMinDistance();
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/**
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* Notifies the amount of time the user has been idle at their current
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* location.
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*
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* @param idleTime The time that the user has been idle at this spot
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* Notifies the amount of time the user has been idle at his current location.
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*
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* @param idleTime the time that the user has been idle at his current
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* location
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*/
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public void updateIdleTime(long idleTime);
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}
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