Clear installer's user data before downloading an app so that we get rid of any lingering files from earlier failed installs

or files left behind by earlier buggy builds
Add permission to AndroidManifest to clear user data

1 files changed, 2 insertions, 0 deletions

diff --git a/src/com/android/packageinstaller/PackageInstallerActivity.java b/src/com/android/packageinstaller/PackageInstallerActivity.java
index d63c98ee..3b429d94 100644
--- a/src/com/android/packageinstaller/PackageInstallerActivity.java
+++ b/src/com/android/packageinstaller/PackageInstallerActivity.java
@@ -356,6 +356,8 @@ public class PackageInstallerActivity extends Activity implements OnCancelListen
             showDialogInner(DLG_UNKNOWN_APPS);
             return;
         }
+        // Clear any other temporary files in data directory
+        mPm.clearApplicationUserData(getPackageName(), null);
         //compute the size of the application. just an estimate
         long size;
         String apkPath = mPackageURI.getPath();