Refactor Android render loop to limit frame rate to 60 FPS

Move expensive cache size calulation to initialisation
Fix setGestureInProgress bug
Renamed several functions to match current usage
Refactor map updates to reduce GPS marker lag
Fixes #1676
Fixes #2290
Fixes #2396
This commit is contained in:
Leith Bade
2015-09-24 17:18:30 +10:00
parent e5ff4638b3
commit 85ec3eb0a5
5 changed files with 98 additions and 92 deletions

View File

@@ -31,6 +31,7 @@ import android.support.v4.view.GestureDetectorCompat;
import android.support.v4.view.ScaleGestureDetectorCompat;
import android.support.v7.app.AlertDialog;
import android.text.TextUtils;
import android.util.Log;
import android.view.GestureDetector;
import android.view.Gravity;
import android.view.ScaleGestureDetector;
@@ -63,7 +64,7 @@ import com.mapzen.android.lost.api.LocationListener;
import com.mapzen.android.lost.api.LocationRequest;
import com.mapzen.android.lost.api.LocationServices;
import com.mapzen.android.lost.api.LostApiClient;
import com.squareup.okhttp.HttpUrl;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.Arrays;
@@ -138,6 +139,9 @@ public class MapView extends FrameLayout implements LocationListener {
// Used to call JNI NativeMapView
private NativeMapView mNativeMapView;
// Used to track rendering
private Boolean mDirty = false;
// Used to handle DPI scaling
private float mScreenDensity = 1.0f;
@@ -400,6 +404,12 @@ public class MapView extends FrameLayout implements LocationListener {
.setSmallestDisplacement(1)
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
// Setup User Location UI
mGpsMarker = new ImageView(getContext());
mGpsMarker.setImageResource(R.drawable.location_marker);
mGpsMarker.setVisibility(View.INVISIBLE);
addView(mGpsMarker);
// Setup Compass
mSensorManager = (SensorManager) mContext.getSystemService(Context.SENSOR_SERVICE);
mSensorAccelerometer = mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
@@ -411,6 +421,7 @@ public class MapView extends FrameLayout implements LocationListener {
mCompassView.setContentDescription(getResources().getString(R.string.compassContentDescription));
LayoutParams lp = new FrameLayout.LayoutParams((int)(48 * mScreenDensity), (int)(48 * mScreenDensity));
mCompassView.setLayoutParams(lp);
mCompassView.setVisibility(View.INVISIBLE);
addView(mCompassView);
mCompassView.setOnClickListener(new CompassOnClickListener());
@@ -883,7 +894,9 @@ public class MapView extends FrameLayout implements LocationListener {
addOnMapChangedListener(new OnMapChangedListener() {
@Override
public void onMapChanged(MapChange change) {
updateMap(change);
if (change.equals(MapChange.MapChangeRegionWillChange) || change.equals(MapChange.MapChangeRegionWillChangeAnimated)) {
deselectAnnotation();
}
}
});
}
@@ -957,7 +970,7 @@ public class MapView extends FrameLayout implements LocationListener {
if (mIsMyLocationEnabled) {
toggleGps(false);
};
}
mNativeMapView.pause();
}
@@ -1074,7 +1087,8 @@ public class MapView extends FrameLayout implements LocationListener {
@Override
public boolean onTouchEvent(@NonNull MotionEvent event) {
// Check and ignore non touch or left clicks
if ((android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) && (event.getButtonState() != 0) && (event.getButtonState() != MotionEvent.BUTTON_PRIMARY)) {
if ((event.getButtonState() != 0) && (event.getButtonState() != MotionEvent.BUTTON_PRIMARY)) {
return false;
}
@@ -1103,7 +1117,6 @@ public class MapView extends FrameLayout implements LocationListener {
long tapInterval = event.getEventTime() - event.getDownTime();
boolean isTap = tapInterval <= ViewConfiguration.getTapTimeout();
boolean inProgress = mRotateGestureDetector.isInProgress() || mScaleGestureDetector.isInProgress();
mNativeMapView.setGestureInProgress(false);
if (mTwoTap && isTap && !inProgress) {
PointF focalPoint = TwoFingerGestureDetector.determineFocalPoint(event);
@@ -1113,6 +1126,7 @@ public class MapView extends FrameLayout implements LocationListener {
}
mTwoTap = false;
mNativeMapView.setGestureInProgress(false);
break;
case MotionEvent.ACTION_CANCEL:
@@ -1780,12 +1794,30 @@ public class MapView extends FrameLayout implements LocationListener {
// Called when the map needs to be rerendered
// Called via JNI from NativeMapView
protected void onInvalidate() {
post(new Runnable() {
synchronized (mDirty) {
if (!mDirty) {
mDirty = true;
postRender();
}
}
}
private void postRender() {
Runnable mRunnable = new Runnable() {
@Override
public void run() {
mNativeMapView.invalidate();
updateCompass();
updateGpsMarker();
mNativeMapView.renderSync();
mDirty = false;
}
});
};
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
postOnAnimation(mRunnable);
} else {
postDelayed(mRunnable, 1000 / 60);
}
}
/**
@@ -1876,7 +1908,6 @@ public class MapView extends FrameLayout implements LocationListener {
public final void setMyLocationEnabled (boolean enabled) {
mIsMyLocationEnabled = enabled;
toggleGps(enabled);
updateMap(MapChange.MapChangeNullChange);
}
/**
@@ -1898,18 +1929,20 @@ public class MapView extends FrameLayout implements LocationListener {
mLocationClient.connect();
updateLocation(LocationServices.FusedLocationApi.getLastLocation());
LocationServices.FusedLocationApi.requestLocationUpdates(mLocationRequest, this);
mSensorManager.registerListener(mCompassListener, mSensorAccelerometer, SensorManager.SENSOR_DELAY_UI);
mSensorManager.registerListener(mCompassListener, mSensorMagneticField, SensorManager.SENSOR_DELAY_UI);
//mSensorManager.registerListener(mCompassListener, mSensorAccelerometer, SensorManager.SENSOR_DELAY_UI);
//mSensorManager.registerListener(mCompassListener, mSensorMagneticField, SensorManager.SENSOR_DELAY_UI);
}
} else {
if (mLocationClient.isConnected()) {
LocationServices.FusedLocationApi.removeLocationUpdates(this);
mLocationClient.disconnect();
mGpsLocation = null;
mSensorManager.unregisterListener(mCompassListener, mSensorAccelerometer);
mSensorManager.unregisterListener(mCompassListener, mSensorMagneticField);
//mSensorManager.unregisterListener(mCompassListener, mSensorAccelerometer);
//mSensorManager.unregisterListener(mCompassListener, mSensorMagneticField);
}
}
onInvalidate();
}
/**
@@ -1931,18 +1964,8 @@ public class MapView extends FrameLayout implements LocationListener {
* @param compassEnabled true to enable the compass; false to disable the compass.
*/
public void setCompassEnabled (boolean compassEnabled) {
// Set value
this.mIsCompassEnabled = compassEnabled;
// Toggle UI
if (mIsCompassEnabled) {
mCompassView.setVisibility(View.VISIBLE);
} else {
mCompassView.setVisibility(View.GONE);
}
// Update Map
updateMap(MapChange.MapChangeNullChange);
onInvalidate();
}
public void setCompassGravity(int gravity){
@@ -2022,7 +2045,7 @@ public class MapView extends FrameLayout implements LocationListener {
}
}
updateMap(MapChange.MapChangeNullChange);
onInvalidate();
}
@Override
@@ -2088,7 +2111,7 @@ public class MapView extends FrameLayout implements LocationListener {
private void updateLocation(Location location) {
if (location != null) {
mGpsLocation = location;
updateMap(MapChange.MapChangeNullChange);
updateGpsMarker();
}
}
@@ -2102,22 +2125,17 @@ public class MapView extends FrameLayout implements LocationListener {
}
// Updates the UI to match the current map's position
private void updateMap(MapChange change) {
// Using direct access to mIsCompassEnabled instead of isCompassEnabled() for
// small performance boost as this method is called rapidly.
if (mIsCompassEnabled) {
private void updateCompass() {
if (isCompassEnabled()) {
mCompassView.setVisibility(VISIBLE);
rotateImageView(mCompassView, (float) getDirection());
} else {
mCompassView.setVisibility(INVISIBLE);
}
}
private void updateGpsMarker() {
if (isMyLocationEnabled() && mGpsLocation != null) {
if (mGpsMarker == null) {
// Setup User Location UI
// NOTE: mIsMyLocationEnabled == false to begin with
mGpsMarker = new ImageView(getContext());
mGpsMarker.setImageResource(R.drawable.location_marker);
addView(mGpsMarker);
}
mGpsMarker.setVisibility(View.VISIBLE);
LatLng coordinate = new LatLng(mGpsLocation);
PointF screenLocation = toScreenLocation(coordinate);
@@ -2130,26 +2148,6 @@ public class MapView extends FrameLayout implements LocationListener {
mGpsMarker.setLayoutParams(lp);
rotateImageView(mGpsMarker, 0.0f);
mGpsMarker.requestLayout();
// Update direction if tracking mode
if(mUserLocationTrackingMode == UserLocationTrackingMode.FOLLOW_BEARING && mCompassValid){
// TODO need to do proper filtering (see branch filter-compass) or else map will lock up because of all the compass events
long t = new Date().getTime();
if((t-t0)>1000){
t0 = t;
setDirection(-mCompassBearing, true);
}
}
/*
// TODO - Too much overhead on main thread. Needs to be refactored before it
// can be re-enabled
// Update map position if NOT in NONE mode
if (mUserLocationTrackingMode != UserLocationTrackingMode.NONE) {
setCenterCoordinate(new LatLng(mGpsLocation));
}
*/
/*
// Used For User Location Bearing UI
if (mGpsLocation.hasBearing() || mCompassValid) {
@@ -2169,13 +2167,28 @@ public class MapView extends FrameLayout implements LocationListener {
mGpsMarker.setVisibility(View.INVISIBLE);
}
}
if (change.equals(MapChange.MapChangeRegionWillChange) || change.equals(MapChange.MapChangeRegionWillChangeAnimated)) {
deselectAnnotation();
}
}
// Old tracking code
// Update direction if tracking mode
/*if(mUserLocationTrackingMode == UserLocationTrackingMode.FOLLOW_BEARING && mCompassValid){
// TODO need to do proper filtering (see branch filter-compass) or else map will lock up because of all the compass events
long t = new Date().getTime();
if((t-t0)>1000){
t0 = t;
setDirection(-mCompassBearing, true);
}
}*/
/*
// TODO - Too much overhead on main thread. Needs to be refactored before it
// can be re-enabled
// Update map position if NOT in NONE mode
if (mUserLocationTrackingMode != UserLocationTrackingMode.NONE) {
setCenterCoordinate(new LatLng(mGpsLocation));
}
*/
private void selectAnnotation(Annotation annotation) {
if (annotation == null) {

View File

@@ -96,8 +96,8 @@ class NativeMapView {
nativeUpdate(mNativeMapViewPtr);
}
public void invalidate() {
nativeOnInvalidate(mNativeMapViewPtr);
public void renderSync() {
nativeRenderSync(mNativeMapViewPtr);
}
public void resizeView(int width, int height) {
@@ -475,7 +475,7 @@ class NativeMapView {
private native void nativeUpdate(long nativeMapViewPtr);
private native void nativeOnInvalidate(long nativeMapViewPtr);
private native void nativeRenderSync(long nativeMapViewPtr);
private native void nativeViewResize(long nativeMapViewPtr, int width, int height);