commit 9d6d92b33ebf1c91aed47bd759ce78a3e06afff5
author Mike Lockwood <lockwood@android.com> Sun Feb 27 09:05:10 2011 -0800
committer Mike Lockwood <lockwood@android.com> Tue Mar 01 08:05:59 2011 -0800
tree a3b0c40a6610d9f7f73ec6fbf6eb1faafde1bd6d
parent e18897bc2242110782fca135e9e47fcdb5839d64

InstalledAppDetails: "Clear defaults" button now clears USB service settings

The USB service caches the preferred activity preferences for USB devices
and accessories and allows permission to access the hardware based on the
user's selection.  The "Clear defaults" button can now be used to clear
these settings.

Change-Id: I307c118cb0ce06362e289e35bca93a47ce4631a5
Signed-off-by: Mike Lockwood <lockwood@android.com>

AndroidManifest.xml

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e092bc9..a8f9787 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -48,6 +48,7 @@
     <uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
     <uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
     <uses-permission android:name="android.permission.STATUS_BAR" />
+    <uses-permission android:name="android.permission.MANAGE_USB" />
 
     <application android:label="@string/settings_label"
             android:icon="@mipmap/ic_launcher_settings"

src/com/android/settings/applications/InstalledAppDetails.java

diff --git a/src/com/android/settings/applications/InstalledAppDetails.java b/src/com/android/settings/applications/InstalledAppDetails.java
index 06d97fc..8edf206 100644
--- a/src/com/android/settings/applications/InstalledAppDetails.java
+++ b/src/com/android/settings/applications/InstalledAppDetails.java
@@ -37,13 +37,16 @@
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.hardware.usb.IUsbManager;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.Handler;
+import android.os.IBinder;
 import android.os.Message;
 import android.os.RemoteException;
+import android.os.ServiceManager;
 import android.preference.PreferenceActivity;
 import android.text.format.Formatter;
 import android.util.Log;
@@ -79,6 +82,7 @@
     public static final String ARG_PACKAGE_NAME = "package";
 
     private PackageManager mPm;
+    private IUsbManager mUsbManager;
     private ApplicationsState mState;
     private ApplicationsState.AppEntry mAppEntry;
     private PackageInfo mPackageInfo;
@@ -305,7 +309,9 @@
         
         mState = ApplicationsState.getInstance(getActivity().getApplication());
         mPm = getActivity().getPackageManager();
-        
+        IBinder b = ServiceManager.getService(Context.USB_SERVICE);
+        mUsbManager = IUsbManager.Stub.asInterface(b);
+
         mCanBeOnSdCardChecker = new CanBeOnSdCardChecker();
     }
 
@@ -444,8 +450,14 @@
         List<IntentFilter> intentList = new ArrayList<IntentFilter>();
         mPm.getPreferredActivities(intentList, prefActList, packageName);
         if(localLOGV) Log.i(TAG, "Have "+prefActList.size()+" number of activities in prefered list");
+        boolean hasUsbDefaults = false;
+        try {
+            hasUsbDefaults = mUsbManager.hasDefaults(packageName, mAppEntry.info.uid);
+        } catch (RemoteException e) {
+            Log.e(TAG, "mUsbManager.hasDefaults", e);
+        }
         TextView autoLaunchView = (TextView)mRootView.findViewById(R.id.auto_launch);
-        if (prefActList.size() <= 0) {
+        if (prefActList.size() <= 0 && !hasUsbDefaults) {
             // Disable clear activities button
             autoLaunchView.setText(R.string.auto_launch_disable_text);
             mActivitiesButton.setEnabled(false);
@@ -784,6 +796,11 @@
             }
         } else if(v == mActivitiesButton) {
             mPm.clearPackagePreferredActivities(packageName);
+            try {
+                mUsbManager.clearDefaults(packageName, mAppEntry.info.uid);
+            } catch (RemoteException e) {
+                Log.e(TAG, "mUsbManager.clearDefaults", e);
+            }
             mActivitiesButton.setEnabled(false);
         } else if(v == mClearDataButton) {
             if (mAppEntry.info.manageSpaceActivityName != null) {