Fix 2481917: allows keyboards with overlapping qwerty/numeric keys to work w/o requiring hitting the <alt> key.

Some devices have a qwerty layout without separate numeric keys. This makes PIN entry painful.
The workaround is to set an explicit numeric key listener when in numeric mode.

1 files changed, 10 insertions, 0 deletions

diff --git a/policy/com/android/internal/policy/impl/PasswordUnlockScreen.java b/policy/com/android/internal/policy/impl/PasswordUnlockScreen.java
index a721c47..c52ef53 100644
--- a/policy/com/android/internal/policy/impl/PasswordUnlockScreen.java
+++ b/policy/com/android/internal/policy/impl/PasswordUnlockScreen.java
@@ -23,6 +23,8 @@ import com.android.internal.widget.LockPatternUtils;
 import com.android.internal.widget.PasswordEntryKeyboardView;
 
 import android.telephony.TelephonyManager;
+import android.text.method.DigitsKeyListener;
+import android.text.method.TextKeyListener;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -92,6 +94,14 @@ public class PasswordUnlockScreen extends LinearLayout implements KeyguardScreen
         mKeyboardView.setVisibility(mCreatedWithKeyboardOpen ? View.INVISIBLE : View.VISIBLE);
         mPasswordEntry.requestFocus();
 
+        // This allows keyboards with overlapping qwerty/numeric keys to choose just the
+        // numeric keys.
+        if (isAlpha) {
+            mPasswordEntry.setKeyListener(TextKeyListener.getInstance());
+        } else {
+            mPasswordEntry.setKeyListener(DigitsKeyListener.getInstance());
+        }
+
         mKeyboardHelper.setVibratePattern(mLockPatternUtils.isTactileFeedbackEnabled() ?
                 com.android.internal.R.array.config_virtualKeyVibePattern : 0);