Do not change fragments if print activity finishing.

It is possible that we try to switch framents after the print
activity finish method is called. In this state the activity
is going away and trying to perform a fragment operation throws.
Now if we are finishing no fragment opration is performed.

bug:17520007

Change-Id: I0dd935d3cdaeddca31fccf49bd5de97e878abb9d

1 files changed, 9 insertions, 0 deletions

diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
index 693e5ac..3985285 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
@@ -816,6 +816,9 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
     }
 
     private void ensureProgressUiShown() {
+        if (isFinishing()) {
+            return;
+        }
         if (mUiState != UI_STATE_PROGRESS) {
             mUiState = UI_STATE_PROGRESS;
             mPrintPreviewController.setUiShown(false);
@@ -825,6 +828,9 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
     }
 
     private void ensurePreviewUiShown() {
+        if (isFinishing()) {
+            return;
+        }
         if (mUiState != UI_STATE_PREVIEW) {
             mUiState = UI_STATE_PREVIEW;
             mPrintPreviewController.setUiShown(true);
@@ -833,6 +839,9 @@ public class PrintActivity extends Activity implements RemotePrintDocument.Updat
     }
 
     private void ensureErrorUiShown(CharSequence message, int action) {
+        if (isFinishing()) {
+            return;
+        }
         if (mUiState != UI_STATE_ERROR) {
             mUiState = UI_STATE_ERROR;
             mPrintPreviewController.setUiShown(false);