Add expiration check on build freshness.

// FREEBIE

src/org/thoughtcrime/securesms/components/ExpiredBuildReminder.java

@@ -0,0 +1,35 @@
+package org.thoughtcrime.securesms.components;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Build;
+import android.provider.Telephony;
+import android.util.Log;
+import android.view.View;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.TextSecureExpiredException;
+import org.thoughtcrime.securesms.util.TextSecurePreferences;
+import org.thoughtcrime.securesms.util.Util;
+
+public class ExpiredBuildReminder extends Reminder {
+
+  private static final String TAG = ExpiredBuildReminder.class.getSimpleName();
+
+  public ExpiredBuildReminder() {
+    super(R.drawable.ic_dialog_alert_holo_dark,
+          R.string.reminder_header_expired_build,
+          R.string.reminder_header_expired_build_details);
+  }
+
+  @Override
+  public boolean isDismissable() {
+    return false;
+  }
+
+  public static boolean isEligible(Context context) {
+    return !Util.isBuildFresh();
+  }
+
+}

src/org/thoughtcrime/securesms/components/Reminder.java

@@ -46,4 +46,8 @@ public abstract class Reminder {
   public void setCancelListener(OnClickListener cancelListener) {
     this.cancelListener = cancelListener;
   }
+
+  public boolean isDismissable() {
+    return true;
+  }
 }

src/org/thoughtcrime/securesms/components/ReminderView.java

@@ -56,15 +56,21 @@ public class ReminderView extends LinearLayout {
     icon.setImageResource(reminder.getIconResId());
     title.setText(reminder.getTitleResId());
     text.setText(reminder.getTextResId());
-    ok.setOnClickListener(reminder.getOkListener());
-    cancel.setOnClickListener(new OnClickListener() {
-      @Override
-      public void onClick(View v) {
-        hide();
-        if (reminder.getCancelListener() != null) reminder.getCancelListener().onClick(v);
-      }
-    });
-    container.setVisibility(View.VISIBLE);
+
+    if (reminder.isDismissable()) {
+      ok.setOnClickListener(reminder.getOkListener());
+      cancel.setOnClickListener(new OnClickListener() {
+        @Override
+        public void onClick(View v) {
+          hide();
+          if (reminder.getCancelListener() != null) reminder.getCancelListener().onClick(v);
+        }
+      });
+      container.setVisibility(View.VISIBLE);
+    } else {
+      ok.setVisibility(View.GONE);
+      cancel.setVisibility(View.GONE);
+    }
   }
 
   public void hide() {