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Optimize Android marker icon caching

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This commit is contained in:
Marius Petcu
2016-07-03 17:16:06 +03:00
parent 13a0b68019
commit d55bb119bc
1 changed files with 33 additions and 21 deletions
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android/src/main/java/com/mapbox/reactnativemapboxgl/RNMGLAnnotationOptionsFactory.java
+33 -21
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@@ -6,6 +6,7 @@ import android.graphics.BitmapFactory;
import android.graphics.Color;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.support.v4.content.ContextCompat;
import com.facebook.react.bridge.ReadableMap;
import com.mapbox.mapboxsdk.annotations.Annotation;
@@ -81,35 +82,50 @@ public class RNMGLAnnotationOptionsFactory {
static Drawable drawableFromDrawableName(Context context, String drawableName) {
int resID = context.getResources().getIdentifier(drawableName, "drawable", context.getApplicationContext().getPackageName());
Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), resID);
return new BitmapDrawable(context.getResources(), bitmap);
return ContextCompat.getDrawable(context, resID);
}
static Drawable drawableFromUrl(Context context, String url) throws IOException {
Bitmap x;
// This doesn't currently work, as it throws NetworkOnMainThreadException
HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
connection.connect();
InputStream input = connection.getInputStream();
x = BitmapFactory.decodeStream(input);
return new BitmapDrawable(context.getResources(), x);
Bitmap bitmap = BitmapFactory.decodeStream(input);
return new BitmapDrawable(context.getResources(), bitmap);
}
static Map<String, Drawable> drawableCache = new HashMap();
static Map<String, Icon> iconCache = new HashMap();
static Drawable drawableFromPath(Context context, String path) throws IOException {
Drawable drawable = drawableCache.get(path);
if (drawable != null) { return drawable; }
static Icon iconFromPathAndSize(Context context, String path, int width, int height) throws IOException {
String cacheKey = path + "||" + width + "||" + height;
Icon icon = iconCache.get(cacheKey);
if (icon != null) { return icon; }
Drawable drawable;
if (path.startsWith("image!")) {
drawable = drawableFromDrawableName(context, path.replace("image!", ""));
} else {
drawable = drawableFromUrl(context, path);
}
drawableCache.put(path, drawable);
return drawable;
IconFactory iconFactory = IconFactory.getInstance(context);
int intrinsicWidth = drawable.getIntrinsicWidth();
int intrinsicHeight = drawable.getIntrinsicHeight();
if (width < 0) { width = intrinsicWidth; }
if (height < 0) { height = intrinsicHeight; }
// Check if a rescale would be superfluous
if ((drawable instanceof BitmapDrawable) && width == intrinsicWidth && height == intrinsicHeight) {
icon = iconFactory.fromBitmap(((BitmapDrawable)drawable).getBitmap());
} else {
icon = iconFactory.fromDrawable(drawable, width, height);
}
iconCache.put(cacheKey, icon);
return icon;
}
static RNMGLAnnotationOptions markerOptionsFromJS(ReadableMap annotation, Context context) {
@@ -134,20 +150,16 @@ public class RNMGLAnnotationOptionsFactory {
ReadableMap annotationImage = annotation.getMap("annotationImage");
String annotationURL = annotationImage.getString("url");
try {
Drawable image = drawableFromPath(context, annotationURL);
int width = -1;
int height = -1;
IconFactory iconFactory = IconFactory.getInstance(context);
Icon icon;
if (annotationImage.hasKey("height") && annotationImage.hasKey("width")) {
float scale = context.getResources().getDisplayMetrics().density;
int height = Math.round((float)annotationImage.getInt("height") * scale);
int width = Math.round((float)annotationImage.getInt("width") * scale);
icon = iconFactory.fromDrawable(image, width, height);
} else {
icon = iconFactory.fromDrawable(image);
height = Math.round((float)annotationImage.getInt("height") * scale);
width = Math.round((float)annotationImage.getInt("width") * scale);
}
marker.icon(icon);
marker.icon(iconFromPathAndSize(context, annotationURL, width, height));
} catch (Exception e) {
e.printStackTrace();
}