修复安卓在SpringScrollView正在做减速动画的时候，点击无法立即获得焦点的问题。

Author: ATShiTou

android/app/app.iml

@@ -97,6 +97,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-runtime-classes" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-verifier" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-apk" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-resources" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant_app_manifest" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant_run_app_info_output_file" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant_run_main_apk_resources" />
@@ -125,7 +126,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/reports" />
       <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 26 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 26 Platform (1)" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="Gradle: org.webkit:android-jsc:r174650@aar" level="project" />
     <orderEntry type="library" name="Gradle: com.android.support:support-vector-drawable:27.1.1@aar" level="project" />

android/app/build.gradle

@@ -140,11 +140,11 @@ android {
 }
 
 dependencies {
-    compile project(':lottie-react-native')
-    compile project(':react-native-spring-scroll-view')
-    compile fileTree(dir: "libs", include: ["*.jar"])
-    compile "com.android.support:appcompat-v7:26.0.0"
-    compile "com.facebook.react:react-native:+"  // From node_modules
+    api project(':lottie-react-native')
+    api project(':react-native-spring-scroll-view')
+    api fileTree(dir: "libs", include: ["*.jar"])
+    api "com.android.support:appcompat-v7:26.0.0"
+    api "com.facebook.react:react-native:+"  // From node_modules
 }
 
 // Run this once to be able to run the application with BUCK

src/SpringScrollView.js

@@ -277,8 +277,8 @@ export class SpringScrollView extends React.PureComponent<SpringScrollViewPropTy
     this._indicatorAnimation && this._indicatorAnimation.stop();
     this._indicatorAnimation = Animated.timing(this._indicatorOpacity, {
       toValue: 0,
-      delay: 1000,
-      duration: 1000,
+      delay: 500,
+      duration: 500,
       useNativeDriver: true
     });
     this._indicatorAnimation.start(({ finished }) => {

src/android/react-native-spring-scroll-view.iml

@@ -121,7 +121,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
       <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 26 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 26 Platform (1)" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" name="Gradle: com.facebook.soloader:soloader:0.1.0@aar" level="project" />
     <orderEntry type="library" name="Gradle: org.webkit:android-jsc:r174650@aar" level="project" />

src/android/src/main/java/com/bolan9999/DecelerateAnimation.java

@@ -7,6 +7,7 @@
 
 abstract class DecelerateAnimation {
     protected ValueAnimator animator;
+    public boolean animating;
 
     public DecelerateAnimation(float base, float v, float dampingCoefficient) {
         int duration = 0;
@@ -33,13 +34,15 @@ public void onAnimationUpdate(ValueAnimator animator) {
                 onUpdate((float) animator.getAnimatedValue());
             }
         });
+        this.animating = true;
         animator.addListener(new Animator.AnimatorListener() {
             @Override
             public void onAnimationStart(Animator animation) {
             }
 
             @Override
             public void onAnimationEnd(Animator animation) {
+                DecelerateAnimation.this.animating = false;
                 onEnd();
             }
 
@@ -54,8 +57,10 @@ public void onAnimationRepeat(Animator animation) {
         animator.start();
     }
 
-    public void cancel() {
+    public boolean cancel() {
+        boolean cancel=this.animating;
         animator.cancel();
+        return cancel;
     }
 
     protected abstract void onEnd();

src/android/src/main/java/com/bolan9999/SpringScrollView.java

@@ -3,7 +3,6 @@
 import android.content.Context;
 import android.os.Build;
 import android.support.annotation.NonNull;
-import android.telephony.TelephonyManager;
 import android.view.MotionEvent;
 import android.view.VelocityTracker;
 import android.view.ViewGroup;
@@ -127,7 +126,9 @@ public boolean onTouch(View view, MotionEvent evt) {
     private void onDown(MotionEvent evt) {
         beginPoint.x = lastPoint.x = evt.getX();
         beginPoint.y = lastPoint.y = evt.getY();
-        cancelAllAnimations();
+        if (cancelAllAnimations()) {
+            this.dragging = true;
+        }
         if (momentumScrolling) {
             momentumScrolling = false;
             sendEvent("onMomentumScrollEnd", null);
@@ -150,7 +151,7 @@ private void onUp(MotionEvent evt) {
         tracker.computeCurrentVelocity(1);
         float vy = tracker.getYVelocity();
         float vx = tracker.getXVelocity();
-        if (inverted && Build.VERSION.SDK_INT>=28) {
+        if (inverted && Build.VERSION.SDK_INT >= 28) {
             vx = -vx;
             vy = -vy;
         }
@@ -371,15 +372,17 @@ protected void onUpdate(float value) {
         verticalAnimation.start();
     }
 
-    private void cancelAllAnimations() {
+    private boolean cancelAllAnimations() {
+        boolean cancel = false;
         if (verticalAnimation != null) {
-            verticalAnimation.cancel();
+            cancel = verticalAnimation.cancel();
             verticalAnimation = null;
         }
         if (horizontalAnimation != null) {
-            horizontalAnimation.cancel();
+            cancel = horizontalAnimation.cancel();
             horizontalAnimation = null;
         }
+        return cancel;
     }