android 调用拨打电话，程序崩溃

FATAL EXCEPTION: main
03-27 17:43:08.012: E/AndroidRuntime(18523): Process: com.mtq.freighthelper, PID: 18523
03-27 17:43:08.012: E/AndroidRuntime(18523): java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.CALL dat=tel:xxxx-xxxxxxxx cmp=com.android.server.telecom/.components.UserCallActivity } from ProcessRecord{1f529f5 18523:com.mtq.freighthelper/u0a491} (pid=18523, uid=10491) with revoked permission android.permission.CALL_PHONE
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.os.Parcel.readException(Parcel.java:1620)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.os.Parcel.readException(Parcel.java:1573)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.ActivityManagerProxy.startActivity(ActivityManagerNative.java:2681)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1509)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.Activity.startActivityForResult(Activity.java:3978)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.Activity.startActivityForResult(Activity.java:3939)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.Activity.startActivity(Activity.java:4262)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.Activity.startActivity(Activity.java:4230)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at com.mtq.freighthelper.ui.activity.contacts.ContactsDetailActivity.onClick(ContactsDetailActivity.java:97)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.view.View.performClick(View.java:5207)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.view.View$PerformClick.run(View.java:21177)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.os.Handler.handleCallback(Handler.java:739)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.os.Handler.dispatchMessage(Handler.java:95)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.os.Looper.loop(Looper.java:148)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at android.app.ActivityThread.main(ActivityThread.java:5438)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at java.lang.reflect.Method.invoke(Native Method)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
03-27 17:43:08.012: E/AndroidRuntime(18523):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:629)

使用设备：小米4

android: 6.0

程序报java.lang.SecurityException: Permission Denial: starting Intent { act=android.intent.action.CALL dat=tel:xxxx-xxxxxxxx cmp=com.android.server.telecom/.components.UserCallActivity } from ProcessRecord{1f529f5 18523:com.mtq.freighthelper/u0a491} (pid=18523, uid=10491) with revoked permission

原因：

在6.0 系统中请求某些权限需要检查权限

 1 if (!TextUtils.isEmpty(phone)) {
 2                 if (!hasPermission()) {
 3                     // 在6.0 系统中请求某些权限需要检查权限
 4                     int curApiVersion = Build.VERSION.SDK_INT;
 5                     if (curApiVersion >= Build.VERSION_CODES.M) {
 6                         // 动态请求拨打电话权限
 7                         requestPermissions(
 8                                 new String[] { Manifest.permission.CALL_PHONE },
 9                                 0x11);
10                     } else {
11                         intentToCall(phone);
12                     }
13                 } else {
14                     intentToCall(phone);
15                 }
16             }

 1 private boolean hasPermission() {
 2         if (checkSelfPermission(Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
 3             return false;
 4         }
 5         return true;
 6     }
 7 
 8     private void intentToCall(String phoneNumber) {
 9         Intent intent = new Intent(Intent.ACTION_CALL);
10         Uri data = Uri.parse("tel:" + phoneNumber);
11         intent.setData(data);
12         startActivity(intent);
13     }
14 
15     
16     /**
17      * 动态请求拨打电话权限后，监听用户的点击事件 
18      */
19     @Override
20     public void onRequestPermissionsResult(int requestCode,
21             String[] permissions, int[] grantResults) {
22         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
23         if (requestCode == 0x11) {
24             // If request is cancelled, the result arrays are empty.
25             if (grantResults.length > 0
26                     && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
27                 CldLog.i("CMCC", "权限被允许");
28                 String phone = mContactsInfo.getPhone();
29                 intentToCall(phone);
30             } else {
31                 CldLog.i("CMCC", "权限被拒绝");
32             }
33         }
34     }