Don't register click when user moves away from Button before lifting finger

app/build.gradle

@@ -1,12 +1,12 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.3"
+    compileSdkVersion 26
+    buildToolsVersion "26.0.2"
     defaultConfig {
         applicationId "com.dx.dxloadingbutton"
         minSdkVersion 21
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -24,7 +24,7 @@ dependencies {
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    compile 'com.android.support:appcompat-v7:25.4.0'
+    compile 'com.android.support:appcompat-v7:26.1.0'
     testCompile 'junit:junit:4.12'
     compile project(':library')
 }

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0-beta6'
+        classpath 'com.android.tools.build:gradle:3.0.1'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
     }
 }

library/build.gradle

@@ -2,12 +2,12 @@ apply plugin: 'com.android.library'
 apply plugin: 'com.github.dcendents.android-maven'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.3"
+    compileSdkVersion 26
+    buildToolsVersion "26.0.2"
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 26
         versionCode 1
         versionName "1.0"
 
@@ -27,6 +27,6 @@ dependencies {
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    compile 'com.android.support:appcompat-v7:25.4.0'
+    compile 'com.android.support:appcompat-v7:26.1.0'
     testCompile 'junit:junit:4.12'
 }

library/src/main/java/com/dx/dxloadingbutton/lib/LoadingButton.java

@@ -210,20 +210,29 @@ public boolean performClick() {
     @SuppressLint("ClickableViewAccessibility")
     @Override
     public boolean onTouchEvent(MotionEvent event) {
-        if(!isEnabled()){
+        if(!isEnabled()) {
             return true;
         }
-        switch (event.getAction()){
+        switch (event.getAction()) {
             case MotionEvent.ACTION_DOWN:
                 mTouchX = event.getX();
                 mTouchY = event.getY();
                 playRippleAnimation(true);
                 break;
             case MotionEvent.ACTION_UP:
-                playRippleAnimation(false);
+                if ((event.getX() > mButtonRectF.left && event.getX() < mButtonRectF.right) &&
+                        (event.getY() > mButtonRectF.top && event.getY() < mButtonRectF.bottom)) {
+                    // only register as click if finger is up inside view
+                    playRippleAnimation(false);
+                } else {
+                    // if finger is moved outside view and lifted up, reset
+                    mTouchX = 0;
+                    mTouchY = 0;
+                    mRippleRadius = 0;
+                    invalidate();
+                }
                 break;
         }
-
         return true;
     }