show password last letter when typing.

src/org/linphone/AccountPreferencesFragment.java

@@ -33,6 +33,8 @@ import android.preference.Preference.OnPreferenceClickListener;
 import android.preference.PreferenceCategory;
 import android.preference.PreferenceScreen;
 import android.text.InputType;
+import android.text.method.PasswordTransformationMethod;
+import android.view.View;
 
 /**
  * @author Sylvain Berfini
@@ -196,7 +198,27 @@ public class AccountPreferencesFragment extends PreferencesListFragment {
 			return true;
 		}
 	};
-	
+	private class CoolPasswordMethod extends PasswordTransformationMethod{
+		@Override
+		public CharSequence getTransformation(CharSequence source, View view) {
+			return new PasswordCharSequence(source);
+		}
+		private class PasswordCharSequence implements CharSequence {
+	        private CharSequence mSource;
+	        public PasswordCharSequence(CharSequence source) {
+	            mSource = source; 
+	        }
+	        public char charAt(int index) {
+	            return index==mSource.length()-1 ? mSource.charAt(index) : '*'; 
+	        }
+	        public int length() {
+	            return mSource.length(); 
+	        }
+	        public CharSequence subSequence(int start, int end) {
+	            return mSource.subSequence(start, end); // Return default
+	        }
+	    }
+	}
 	private void manageAccountPreferencesFields(PreferenceScreen parent) {
 		boolean isDefaultAccount = mPrefs.getDefaultAccountIndex() == n;
 		
@@ -216,6 +238,7 @@ public class AccountPreferencesFragment extends PreferencesListFragment {
     	EditTextPreference password = (EditTextPreference) account.getPreference(2);
     	password.getEditText().setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
     	password.setText(mPrefs.getAccountPassword(n));
+    	password.getEditText().setTransformationMethod(new CoolPasswordMethod());
     	password.setOnPreferenceChangeListener(passwordChangedListener);
     	
     	EditTextPreference domain = (EditTextPreference) account.getPreference(3);