[Companion] Fix NPE due to looking up view btoo soon

Fixes: b/64101223
Test: Ensure attached bug no longer reproduces
Change-Id: I23bb05c5355972ce96d08f620ceb8463df3fe853

1 files changed, 2 insertions, 2 deletions

diff --git a/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java b/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java
index 30c1fff5e6ee..7e23ee152ed9 100644
--- a/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java
+++ b/packages/CompanionDeviceManager/src/com/android/companiondevicemanager/DeviceChooserActivity.java
@@ -55,8 +55,6 @@ public class DeviceChooserActivity extends Activity {
             Log.e(LOG_TAG, "About to show UI, but no devices to show");
         }
 
-        mPairButton = findViewById(R.id.button_pair);
-
         if (getService().mRequest.isSingleDevice()) {
             setContentView(R.layout.device_confirmation);
             final DeviceFilterPair selectedDevice = getService().mDevicesFound.get(0);
@@ -64,11 +62,13 @@ public class DeviceChooserActivity extends Activity {
                     R.string.confirmation_title,
                     getCallingAppName(),
                     selectedDevice.getDisplayName()), 0));
+            mPairButton = findViewById(R.id.button_pair);
             mPairButton.setOnClickListener(v -> onDeviceConfirmed(getService().mSelectedDevice));
             getService().mSelectedDevice = selectedDevice;
             onSelectionUpdate();
         } else {
             setContentView(R.layout.device_chooser);
+            mPairButton = findViewById(R.id.button_pair);
             mPairButton.setVisibility(View.GONE);
             setTitle(Html.fromHtml(getString(R.string.chooser_title, getCallingAppName()), 0));
             mDeviceListView = findViewById(R.id.device_list);