commit bd4c3210e1e0d6f58b2a5857032a2dacb316be98
author Paul Lawrence <paullawrence@google.com> Wed Jul 23 13:57:17 2014 -0700
committer Paul Lawrence <paullawrence@google.com> Thu Jul 24 08:38:24 2014 -0700
tree cb95339e38a7b03573a16ba34f16a7cde1a5bbf2
parent e68f5224e4359aef7f62c94130d5b9b221bee389

Show countdown of remaining decrypt attempts before wiping device

Bug: 16496992
Change-Id: Ibdd4bbbf9a9eeafee5e0e5ed48464d524628cf12

res/layout/crypt_keeper_status.xml

diff --git a/res/layout/crypt_keeper_status.xml b/res/layout/crypt_keeper_status.xml
index 72f7aec..c366b57 100644
--- a/res/layout/crypt_keeper_status.xml
+++ b/res/layout/crypt_keeper_status.xml
@@ -25,6 +25,8 @@
     android:layout_height="wrap_content"
     android:layout_gravity="center_horizontal">
 
+    <!-- We need android:gravity="center_horizontal" to make multi line
+    status strings look good -->
     <TextView
         android:id="@+id/status"
         android:layout_width="wrap_content"
@@ -35,7 +37,8 @@
         android:textSize="18sp"
         android:textAppearance="?android:attr/textAppearanceLarge"
         android:text="@string/enter_password"
-        android:layout_gravity="center_horizontal" />
+        android:layout_gravity="center_horizontal"
+        android:gravity="center_horizontal" />
 
     <TextView
         android:id="@+id/owner_info"

res/values/strings.xml

diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1d91076..f114a26 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -867,6 +867,11 @@
     <!-- Informational text on the password entry screen when password entry fails-->
     <string name="crypt_keeper_cooldown">Try again in <xliff:g id="delay" example="15">^1</xliff:g> seconds.</string>
 
+    <!-- Warn user their device will be wiped if they make x more failed attempts -->
+    <string name="crypt_keeper_warn_wipe">Warning: Your device will be wiped after
+    <xliff:g id="count" example="7">^1</xliff:g> more failed attempts to be unlocked!
+    </string>
+
     <!-- Informational text on the password entry screen prompting the user for their password -->
     <string name="crypt_keeper_enter_password">Type your password</string>
 

src/com/android/settings/CryptKeeper.java

diff --git a/src/com/android/settings/CryptKeeper.java b/src/com/android/settings/CryptKeeper.java
index b82c02a..129b201 100644
--- a/src/com/android/settings/CryptKeeper.java
+++ b/src/com/android/settings/CryptKeeper.java
@@ -182,7 +182,17 @@
                     cooldown();
                 } else {
                     final TextView status = (TextView) findViewById(R.id.status);
-                    status.setText(R.string.try_again);
+
+                    int remainingAttempts = MAX_FAILED_ATTEMPTS - failedAttempts;
+                    if (remainingAttempts < COOL_DOWN_ATTEMPTS) {
+                        CharSequence warningTemplate = getText(R.string.crypt_keeper_warn_wipe);
+                        CharSequence warning = TextUtils.expandTemplate(warningTemplate,
+                                                                        Integer.toString(remainingAttempts));
+                        status.setText(warning);
+                    } else {
+                        status.setText(R.string.try_again);
+                    }
+
                     if (mLockPatternView != null) {
                         mLockPatternView.setDisplayMode(DisplayMode.Wrong);
                     }