fix: null exception in FastImageViewManager.java (DylanVann#423)

Author: hungvxt

android/src/main/java/com/dylanvann/fastimage/FastImageViewManager.java

@@ -9,6 +9,7 @@
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.RequestManager;
 import com.bumptech.glide.load.model.GlideUrl;
+import com.bumptech.glide.request.Request;
 import com.facebook.react.bridge.ReadableMap;
 import com.facebook.react.bridge.WritableMap;
 import com.facebook.react.bridge.WritableNativeMap;
@@ -58,9 +59,7 @@ protected FastImageViewWithUrl createViewInstance(ThemedReactContext reactContex
     public void setSrc(FastImageViewWithUrl view, @Nullable ReadableMap source) {
         if (source == null || !source.hasKey("uri") || isNullOrEmpty(source.getString("uri"))) {
             // Cancel existing requests.
-            if (requestManager != null) {
-                requestManager.clear(view);
-            }
+            clearView(view);
 
             if (view.glideUrl != null) {
                 FastImageOkHttpProgressGlideModule.forget(view.glideUrl.toStringUrl());
@@ -97,9 +96,7 @@ public void setSrc(FastImageViewWithUrl view, @Nullable ReadableMap source) {
 
         // Cancel existing request.
         view.glideUrl = glideUrl;
-        if (requestManager != null) {
-            requestManager.clear(view);
-        }
+        clearView(view);
 
         String key = glideUrl.toStringUrl();
         FastImageOkHttpProgressGlideModule.expect(key, this);
@@ -149,9 +146,7 @@ public void setResizeMode(FastImageViewWithUrl view, String resizeMode) {
     @Override
     public void onDropViewInstance(FastImageViewWithUrl view) {
         // This will cancel existing requests.
-        if (requestManager != null) {
-            requestManager.clear(view);
-        }
+        clearView(view);
 
         if (view.glideUrl != null) {
             final String key = view.glideUrl.toString();
@@ -244,4 +239,10 @@ private static boolean isActivityDestroyed(Activity activity) {
         }
 
     }
+
+    private void clearView(FastImageViewWithUrl view) {
+        if (requestManager != null && view != null && view.getTag() != null && view.getTag() instanceof Request) {
+            requestManager.clear(view);
+        }
+    }
 }