From ac533d83aab29005f70c97ed939a6d6f2e13aa16 Mon Sep 17 00:00:00 2001
From: Matthew Wong <wongma@protonmail.ch>
Date: Thu, 13 Aug 2015 21:16:10 -0400
Subject: Preference activity up & back behaviour. Especially when opened with
 'Settings' dialog button

---
 app/src/main/AndroidManifest.xml                   |  8 +++----
 .../autofill/AutofillPreferenceActivity.java       | 26 ++++++++++++++++++++--
 .../zeapo/pwdstore/autofill/AutofillService.java   |  2 +-
 3 files changed, 29 insertions(+), 7 deletions(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index a6ffa791..ecd106cd 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -54,18 +54,18 @@
 					   android:resource="@xml/autofill_config" />
 		</service>
 
-		<activity android:name=".autofill.AutofillActivity">
+		<activity android:name=".autofill.AutofillActivity"
 			android:parentActivityName=".PasswordStore">
 
 			<meta-data android:name="android.support.PARENT_ACTIVITY"
-					   android:value="com.zeapo.pwdstore.PasswordStore" />
+				android:value="com.zeapo.pwdstore.PasswordStore" />
 		</activity>
 
-		<activity android:name=".autofill.AutofillPreferenceActivity">
+		<activity android:name=".autofill.AutofillPreferenceActivity"
 			android:parentActivityName=".PasswordStore">
 
 			<meta-data android:name="android.support.PARENT_ACTIVITY"
-					   android:value="com.zeapo.pwdstore.PasswordStore" />
+				android:value="com.zeapo.pwdstore.PasswordStore" />
 		</activity>
 
         <activity android:name="net.rdrei.android.dirchooser.DirectoryChooserActivity" />
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.java b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.java
index 91131956..6f507fa5 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.java
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillPreferenceActivity.java
@@ -5,6 +5,8 @@ import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.os.Bundle;
+import android.support.v4.app.NavUtils;
+import android.support.v4.app.TaskStackBuilder;
 import android.support.v4.view.MenuItemCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.support.v7.widget.LinearLayoutManager;
@@ -26,11 +28,12 @@ public class AutofillPreferenceActivity extends AppCompatActivity {
     AutofillRecyclerAdapter recyclerAdapter; // let fragment have access
     private RecyclerView.LayoutManager layoutManager;
 
+    private boolean recreate;
+
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-        // otherwise if called from settings
         setContentView(R.layout.autofill_recycler_view);
         recyclerView = (RecyclerView) findViewById(R.id.autofill_recycler);
 
@@ -53,8 +56,10 @@ public class AutofillPreferenceActivity extends AppCompatActivity {
 
         setTitle("Autofill Apps");
 
+        recreate = false;
         Bundle extras = getIntent().getExtras();
         if (extras != null) {
+            recreate = true;
             recyclerView.scrollToPosition(recyclerAdapter.getPosition(extras.getString("packageName")));
             showDialog(extras.getString("packageName"), extras.getString("appName"));
         }
@@ -94,6 +99,24 @@ public class AutofillPreferenceActivity extends AppCompatActivity {
         });
         return super.onCreateOptionsMenu(menu);
     }
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            // in service, we CLEAR_TASK. then we set the recreate flag.
+            // something of a hack, but w/o CLEAR_TASK, behaviour was unpredictable
+            case android.R.id.home:
+                Intent upIntent = NavUtils.getParentActivityIntent(this);
+                if (recreate) {
+                    TaskStackBuilder.create(this)
+                            .addNextIntentWithParentStack(upIntent)
+                            .startActivities();
+                } else {
+                    NavUtils.navigateUpTo(this, upIntent);
+                }
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
 
     public void showDialog(String packageName, String appName) {
         DialogFragment df = new AutofillFragment();
@@ -103,6 +126,5 @@ public class AutofillPreferenceActivity extends AppCompatActivity {
         args.putInt("position", recyclerAdapter.getPosition(packageName));
         df.setArguments(args);
         df.show(getFragmentManager(), "autofill_dialog");
-        // TODO if called from dialog 'Settings' button, should activity finish at OK?
     }
 }
diff --git a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java
index 1b8ff740..688e22fc 100644
--- a/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java
+++ b/app/src/main/java/com/zeapo/pwdstore/autofill/AutofillService.java
@@ -158,7 +158,7 @@ public class AutofillService extends AccessibilityService {
                 public void onClick(DialogInterface dialog, int which) {
                     // the user will have to return to the app themselves.
                     Intent intent = new Intent(AutofillService.this, AutofillPreferenceActivity.class);
-                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
                     intent.putExtra("packageName", info.getPackageName());
                     intent.putExtra("appName", appName);
                     startActivity(intent);
-- 
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