On 19+, assure that the view is attached to the window

Author: Jawnnypoo

app/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    compileSdkVersion 24
+    buildToolsVersion "24.0.1"
 
     defaultConfig {
         applicationId "com.ovenbits.quickactionview.sample"
         minSdkVersion 15
-        targetSdkVersion 23
+        targetSdkVersion 24
         versionCode 1
         versionName "1.0"
         vectorDrawables.useSupportLibrary = true
@@ -26,8 +26,8 @@ android {
 dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.3.0'
-    compile 'com.android.support:design:23.3.0'
-    compile 'com.android.support:recyclerview-v7:23.3.0'
+    compile 'com.android.support:appcompat-v7:24.1.1'
+    compile 'com.android.support:design:24.1.1'
+    compile 'com.android.support:recyclerview-v7:24.1.1'
     compile project(':quickactionview')
 }

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.0'
+        classpath 'com.android.tools.build:gradle:2.1.2'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
 
         // NOTE: Do not place your application dependencies here; they belong

quickactionview/build.gradle

@@ -1,12 +1,12 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.3"
+    compileSdkVersion 24
+    buildToolsVersion "24.0.1"
 
     defaultConfig {
         minSdkVersion 15
-        targetSdkVersion 23
+        targetSdkVersion 24
         versionCode 1
         versionName "1.0.0"
     }
@@ -24,7 +24,7 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.4.0'
+    compile 'com.android.support:appcompat-v7:24.1.1'
 }
 
 apply from: 'https://raw.githubusercontent.com/Commit451/gradle-android-javadocs/1.0.0/gradle-android-javadocs.gradle'

quickactionview/src/main/java/com/ovenbits/quickactionview/QuickActionView.java

@@ -457,7 +457,9 @@ private void removeView() {
 
         if (mQuickActionViewLayout != null) {
             WindowManager manager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
-            manager.removeView(mQuickActionViewLayout);
+            if (checkAttachedToWindow(mQuickActionViewLayout)) {
+                manager.removeView(mQuickActionViewLayout);
+            }
             mQuickActionViewLayout = null;
             mShown = false;
         }
@@ -470,6 +472,14 @@ private void removeView() {
         }
     }
 
+    private boolean checkAttachedToWindow(View view) {
+        if (Build.VERSION.SDK_INT >= 19) {
+            return view.isAttachedToWindow();
+        }
+        //Unfortunately, we have no way of truly knowing on versions less than 19
+        return true;
+    }
+
     private void dismiss() {
         if (!mShown) {
             throw new RuntimeException("The QuickActionView must be visible to call dismiss()");