从片段启动呼叫意图并返回到它

Question

我很难启动拨号电话意图，然后在按下返回按钮时返回应用程序，下面的通话功能在正常活动中完美运行，但在从片段中调用时关闭应用程序。

    call.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (driverFoundID != null) {
                    String id = driverFoundID;
                    final DatabaseReference getDrivesrnameAndMobile = 

FirebaseDatabase. getInstance().getReference().child("Users").child("Drivers").child(id);
                    getDrivesrnameAndMobile.addListenerForSingleValueEvent(new ValueEventListener() {
                        @Override
                        public void onDataChange(DataSnapshot dataSnapshot) {
                            if (dataSnapshot.child("name").exists() && dataSnapshot.child("mobile").exists()) {
                                String name = dataSnapshot.child("name").getValue().toString();
                                String mobile = dataSnapshot.child("mobile").getValue().toString();
                                dialContactPhone(mobile);
                            } else {
                                snackbarShow("Driver credentials missing");
                            }
                        }

                        @Override
                        public void onCancelled(DatabaseError databaseError) {
                            snackbarShow(databaseError.getMessage().toString());
                        }
                    });
                } else {
                    snackbarShow("Driver credentials missing");
                }
            }
        });

//Funtion
private void dialContactPhone(final String phoneNumber) {
startActivity(new Intent(Intent.ACTION_DIAL, Uri.fromParts("tel", 
phoneNumber, null)));
}

Answer 1

对于一个片段，

private void dialContactPhone(final String phoneNumber) {

Intent intent = new Intent(Intent.ACTION_DIAL);
intent.setData(Uri.parse("tel:" + phoneNumber));
getActivity().startActivity(intent);

}