【Android系统】去掉usb授权提示框 默认给予权限

diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingActivity.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingActivity.java
index 66d5ee1..05cc9a2 100644
--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingActivity.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbDebuggingActivity.java
@@ -126,10 +126,20 @@ public class UsbDebuggingActivity extends AlertActivity
             if (!UsbManager.ACTION_USB_STATE.equals(action)) {
                 return;
             }
-            boolean connected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
-            if (!connected) {
+            //boolean connected = intent.getBooleanExtra(UsbManager.USB_CONNECTED, false);
+            boolean connected = false;
+			if (!connected) {
                 mActivity.finish();
             }
+
+			try {
+				 IBinder b = ServiceManager.getService(USB_SERVICE); 
+				 IUsbManager service = IUsbManager.Stub.asInterface(b);
+				 service.allowUsbDebugging(true, mKey);
+				 } catch (Exception e) {
+				 	Log.e(TAG, "Unable to notify Usb service", e); 
+				 }
+		
         }
     }
 
diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbPermissionActivity.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbPermissionActivity.java
index 238407a..afeddd4 100644
--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbPermissionActivity.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/usb/UsbPermissionActivity.java
@@ -134,6 +134,9 @@ public class UsbPermissionActivity extends AlertActivity
         }
 
         setupAlert();
+		Log.d(TAG, "grant usb permission automatically");
+		mPermissionGranted = true;
+    	finish();
 
     }

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