diff --git a/README.md b/README.md
index 40c8280..f2fc076 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ allprojects {
 }
 
 dependencies {
-    implementation 'com.github.tbruyelle:rxpermissions:0.9.6'
+    implementation 'com.github.tbruyelle:rxpermissions:0.10.0'
 }
 ```
 
diff --git a/build.gradle b/build.gradle
index fed0c05..2fe4a44 100644
--- a/build.gradle
+++ b/build.gradle
@@ -26,6 +26,7 @@ ext {
     supportLibraryVersion = '27.1.1'
     appCompat = "com.android.support:appcompat-v7:$supportLibraryVersion"
     supportAnnotations = "com.android.support:support-annotations:$supportLibraryVersion"
+    supportFragment = "com.android.support:support-fragment:$supportLibraryVersion"
     junit = 'junit:junit:4.12'
     mockito = 'org.mockito:mockito-core:1.10.19'
 
diff --git a/lib/build.gradle b/lib/build.gradle
index 48fd65b..20d896c 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -27,6 +27,7 @@ android {
 dependencies {
     implementation rootProject.ext.rxJava
     implementation rootProject.ext.supportAnnotations
+    implementation rootProject.ext.supportFragment
 
     testImplementation rootProject.ext.junit
     testImplementation rootProject.ext.mockito
diff --git a/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissions.java b/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissions.java
index 91c1caa..a8fb3ff 100644
--- a/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissions.java
+++ b/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissions.java
@@ -16,9 +16,10 @@
 
 import android.annotation.TargetApi;
 import android.app.Activity;
-import android.app.FragmentManager;
 import android.os.Build;
 import android.support.annotation.NonNull;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentManager;
 import android.text.TextUtils;
 
 import java.util.ArrayList;
@@ -27,9 +28,6 @@
 import io.reactivex.Observable;
 import io.reactivex.ObservableSource;
 import io.reactivex.ObservableTransformer;
-import io.reactivex.Single;
-import io.reactivex.SingleSource;
-import io.reactivex.SingleTransformer;
 import io.reactivex.functions.Function;
 import io.reactivex.subjects.PublishSubject;
 
@@ -40,16 +38,16 @@ public class RxPermissions {
 
     RxPermissionsFragment mRxPermissionsFragment;
 
-    public RxPermissions(@NonNull Activity activity) {
+    public RxPermissions(@NonNull FragmentActivity activity) {
         mRxPermissionsFragment = getRxPermissionsFragment(activity);
     }
 
-    private RxPermissionsFragment getRxPermissionsFragment(Activity activity) {
+    private RxPermissionsFragment getRxPermissionsFragment(@NonNull FragmentActivity activity) {
         RxPermissionsFragment rxPermissionsFragment = findRxPermissionsFragment(activity);
         boolean isNewInstance = rxPermissionsFragment == null;
         if (isNewInstance) {
             rxPermissionsFragment = new RxPermissionsFragment();
-            FragmentManager fragmentManager = activity.getFragmentManager();
+            FragmentManager fragmentManager = activity.getSupportFragmentManager();
             fragmentManager
                     .beginTransaction()
                     .add(rxPermissionsFragment, TAG)
@@ -59,8 +57,8 @@ private RxPermissionsFragment getRxPermissionsFragment(Activity activity) {
         return rxPermissionsFragment;
     }
 
-    private RxPermissionsFragment findRxPermissionsFragment(Activity activity) {
-        return (RxPermissionsFragment) activity.getFragmentManager().findFragmentByTag(TAG);
+    private RxPermissionsFragment findRxPermissionsFragment(@NonNull FragmentActivity activity) {
+        return (RxPermissionsFragment) activity.getSupportFragmentManager().findFragmentByTag(TAG);
     }
 
     public void setLogging(boolean logging) {
@@ -84,7 +82,7 @@ public ObservableSource<Boolean> apply(Observable<T> o) {
                         .buffer(permissions.length)
                         .flatMap(new Function<List<Permission>, ObservableSource<Boolean>>() {
                             @Override
-                            public ObservableSource<Boolean> apply(List<Permission> permissions) throws Exception {
+                            public ObservableSource<Boolean> apply(List<Permission> permissions) {
                                 if (permissions.isEmpty()) {
                                     // Occurs during orientation change, when the subject receives onComplete.
                                     // In that case we don't want to propagate that empty list to the
@@ -136,7 +134,7 @@ public ObservableSource<Permission> apply(Observable<T> o) {
                         .buffer(permissions.length)
                         .flatMap(new Function<List<Permission>, ObservableSource<Permission>>() {
                             @Override
-                            public ObservableSource<Permission> apply(List<Permission> permissions) throws Exception {
+                            public ObservableSource<Permission> apply(List<Permission> permissions) {
                                 if (permissions.isEmpty()) {
                                     return Observable.empty();
                                 }
@@ -169,18 +167,18 @@ public Observable<Permission> requestEach(final String... permissions) {
      * Request permissions immediately, <b>must be invoked during initialization phase
      * of your application</b>.
      */
-    public Observable<Permission> requestEachCombined(final String... permissions){
+    public Observable<Permission> requestEachCombined(final String... permissions) {
         return Observable.just(TRIGGER).compose(ensureEachCombined(permissions));
     }
 
-    Observable<Permission> request(final Observable<?> trigger, final String... permissions) {
+    private Observable<Permission> request(final Observable<?> trigger, final String... permissions) {
         if (permissions == null || permissions.length == 0) {
             throw new IllegalArgumentException("RxPermissions.request/requestEach requires at least one input permission");
         }
         return oneOf(trigger, pending(permissions))
                 .flatMap(new Function<Object, Observable<Permission>>() {
                     @Override
-                    public Observable<Permission> apply(Object o) throws Exception {
+                    public Observable<Permission> apply(Object o) {
                         return requestImplementation(permissions);
                     }
                 });
@@ -203,7 +201,7 @@ private Observable<?> oneOf(Observable<?> trigger, Observable<?> pending) {
     }
 
     @TargetApi(Build.VERSION_CODES.M)
-    Observable<Permission> requestImplementation(final String... permissions) {
+    private Observable<Permission> requestImplementation(final String... permissions) {
         List<Observable<Permission>> list = new ArrayList<>(permissions.length);
         List<String> unrequestedPermissions = new ArrayList<>();
 
diff --git a/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissionsFragment.java b/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissionsFragment.java
index c4ca288..4c927c4 100644
--- a/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissionsFragment.java
+++ b/lib/src/main/java/com/tbruyelle/rxpermissions2/RxPermissionsFragment.java
@@ -1,16 +1,19 @@
 package com.tbruyelle.rxpermissions2;
 
 import android.annotation.TargetApi;
-import android.app.Fragment;
 import android.content.pm.PackageManager;
 import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentActivity;
 import android.util.Log;
-import io.reactivex.subjects.PublishSubject;
+
 import java.util.HashMap;
 import java.util.Map;
 
+import io.reactivex.subjects.PublishSubject;
+
 public class RxPermissionsFragment extends Fragment {
 
     private static final int PERMISSIONS_REQUEST_CODE = 42;
@@ -68,12 +71,20 @@ void onRequestPermissionsResult(String permissions[], int[] grantResults, boolea
 
     @TargetApi(Build.VERSION_CODES.M)
     boolean isGranted(String permission) {
-        return getActivity().checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
+        final FragmentActivity fragmentActivity = getActivity();
+        if (fragmentActivity == null) {
+            throw new IllegalStateException("This fragment must be attached to an activity.");
+        }
+        return fragmentActivity.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED;
     }
 
     @TargetApi(Build.VERSION_CODES.M)
     boolean isRevoked(String permission) {
-        return getActivity().getPackageManager().isPermissionRevokedByPolicy(permission, getActivity().getPackageName());
+        final FragmentActivity fragmentActivity = getActivity();
+        if (fragmentActivity == null) {
+            throw new IllegalStateException("This fragment must be attached to an activity.");
+        }
+        return fragmentActivity.getPackageManager().isPermissionRevokedByPolicy(permission, getActivity().getPackageName());
     }
 
     public void setLogging(boolean logging) {
@@ -88,8 +99,8 @@ public boolean containsByPermission(@NonNull String permission) {
         return mSubjects.containsKey(permission);
     }
 
-    public PublishSubject<Permission> setSubjectForPermission(@NonNull String permission, @NonNull PublishSubject<Permission> subject) {
-        return mSubjects.put(permission, subject);
+    public void setSubjectForPermission(@NonNull String permission, @NonNull PublishSubject<Permission> subject) {
+        mSubjects.put(permission, subject);
     }
 
     void log(String message) {
diff --git a/lib/src/test/java/com/tbruyelle/rxpermissions2/RxPermissionsTest.java b/lib/src/test/java/com/tbruyelle/rxpermissions2/RxPermissionsTest.java
index bc4ffd3..f5ebfe2 100644
--- a/lib/src/test/java/com/tbruyelle/rxpermissions2/RxPermissionsTest.java
+++ b/lib/src/test/java/com/tbruyelle/rxpermissions2/RxPermissionsTest.java
@@ -19,6 +19,7 @@
 import android.app.Activity;
 import android.content.pm.PackageManager;
 import android.os.Build;
+import android.support.v4.app.FragmentActivity;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -27,8 +28,8 @@
 import org.mockito.Matchers;
 import org.robolectric.Robolectric;
 import org.robolectric.RobolectricTestRunner;
+import org.robolectric.android.controller.ActivityController;
 import org.robolectric.annotation.Config;
-import org.robolectric.util.ActivityController;
 
 import io.reactivex.Observable;
 import io.reactivex.observers.TestObserver;
@@ -50,13 +51,13 @@
 @Config(constants = BuildConfig.class, sdk = Build.VERSION_CODES.M)
 public class RxPermissionsTest {
 
-    private Activity mActivity;
+    private FragmentActivity mActivity;
 
     private RxPermissions mRxPermissions;
 
     @Before
     public void setup() {
-        ActivityController<Activity> activityController = Robolectric.buildActivity(Activity.class);
+        ActivityController<FragmentActivity> activityController = Robolectric.buildActivity(FragmentActivity.class);
         mActivity = spy(activityController.setup().get());
         mRxPermissions = spy(new RxPermissions(mActivity));
         mRxPermissions.mRxPermissionsFragment = spy(mRxPermissions.mRxPermissionsFragment);
@@ -521,7 +522,7 @@ public void shouldShowRequestPermissionRationale_allDenied_allRationale() {
         when(activity.shouldShowRequestPermissionRationale(anyString())).thenReturn(true);
 
         TestObserver<Boolean> sub = new TestObserver<>();
-        mRxPermissions.shouldShowRequestPermissionRationale(activity, new String[]{"p1", "p2"})
+        mRxPermissions.shouldShowRequestPermissionRationale(activity, "p1", "p2")
                 .subscribe(sub);
 
         sub.assertComplete();
@@ -537,7 +538,7 @@ public void shouldShowRequestPermissionRationale_allDenied_oneRationale() {
         when(activity.shouldShowRequestPermissionRationale("p1")).thenReturn(true);
 
         TestObserver<Boolean> sub = new TestObserver<>();
-        mRxPermissions.shouldShowRequestPermissionRationale(activity, new String[]{"p1", "p2"})
+        mRxPermissions.shouldShowRequestPermissionRationale(activity, "p1", "p2")
                 .subscribe(sub);
 
         sub.assertComplete();
@@ -552,7 +553,7 @@ public void shouldShowRequestPermissionRationale_allDenied_noRationale() {
         Activity activity = mock(Activity.class);
 
         TestObserver<Boolean> sub = new TestObserver<>();
-        mRxPermissions.shouldShowRequestPermissionRationale(activity, new String[]{"p1", "p2"})
+        mRxPermissions.shouldShowRequestPermissionRationale(activity, "p1", "p2")
                 .subscribe(sub);
 
         sub.assertComplete();
@@ -569,7 +570,7 @@ public void shouldShowRequestPermissionRationale_oneDeniedRationale() {
         when(activity.shouldShowRequestPermissionRationale("p2")).thenReturn(true);
 
         TestObserver<Boolean> sub = new TestObserver<>();
-        mRxPermissions.shouldShowRequestPermissionRationale(activity, new String[]{"p1", "p2"})
+        mRxPermissions.shouldShowRequestPermissionRationale(activity, "p1", "p2")
                 .subscribe(sub);
 
         sub.assertComplete();
@@ -585,7 +586,7 @@ public void shouldShowRequestPermissionRationale_oneDeniedNotRationale() {
         when(mRxPermissions.isGranted("p2")).thenReturn(true);
 
         TestObserver<Boolean> sub = new TestObserver<>();
-        mRxPermissions.shouldShowRequestPermissionRationale(activity, new String[]{"p1", "p2"})
+        mRxPermissions.shouldShowRequestPermissionRationale(activity, "p1", "p2")
                 .subscribe(sub);
 
         sub.assertComplete();