Block EmergencyAction from dismissing as much as possible

Block the onBackPress event on EmergencyActionActivity reduces chances
for false dismiss.

The ui can still be dismissed with home button or recents button. Apps
cannot override these behaviors. So next step we will build a foreground
service to keep the vibration and sound going.

Bug: 172075832
Test: manual
Change-Id: I2f1c2c6d684c85fe9912da663f99365ceefd3dd6

1 files changed, 7 insertions, 2 deletions

diff --git a/src/com/android/emergency/action/EmergencyActionActivity.java b/src/com/android/emergency/action/EmergencyActionActivity.java
index f15f3037..bbb3fea9 100644
--- a/src/com/android/emergency/action/EmergencyActionActivity.java
+++ b/src/com/android/emergency/action/EmergencyActionActivity.java
@@ -17,9 +17,9 @@
 package com.android.emergency.action;
 
 import android.annotation.Nullable;
-import android.app.Activity;
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
+import android.util.Log;
 import android.view.WindowInsets;
 import android.view.WindowInsetsController;
 
@@ -30,6 +30,8 @@ import com.android.emergency.R;
  */
 public class EmergencyActionActivity extends FragmentActivity {
 
+    private static final String TAG = "EmergencyAction";
+
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -48,7 +50,10 @@ public class EmergencyActionActivity extends FragmentActivity {
             getSupportFragmentManager().beginTransaction().add(android.R.id.content,
                     albumFragment).commit();
         }
+    }
 
-
+    @Override
+    public void onBackPressed() {
+        Log.i(TAG, "Not responding to back press intentionally");
     }
 }