怎麼讓 手機號碼 自動分割！

  很簡單。你只要花上一分鐘，你就知道怎麼做了！   
 final EditText et_phone = (EditText) findViewById(R.id.et_phone);  
            et_phone.addTextChangedListener(new TextWatcher() {  
                @Override  
                public void onTextChanged(CharSequence s, int start, int before, int count) {  
                    if (count == 1){  
                        int length = s.toString().length();  
                        if (length == 3 || length == 8){  
                            et_phone.setText(s + " ");  
                            et_phone.setSelection(et_phone.getText().toString().length());  
                        }  
                    }  
                }  
                @Override  
                public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,  
                        int arg3) {  
                      
                }  
                @Override  
                public void afterTextChanged(Editable arg0) {  
                }  
            });