//布局相关 
     
         
              
               
               
           
          
              
               
               
           
          
              
               
               
           
          
              
               
               
           
      
     //.....自己看

editText = (EditText) mView.findViewById(R.id.qc_liangpin); text = (EditText) mView.findViewById(R.id.qc_buliangping); editText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
      @Override     public void onFocusChange(View v, boolean hasFocus) {
          Edit_Tyep = 1;//多个输入框时做的焦点判断     } }); text.setOnFocusChangeListener(new View.OnFocusChangeListener() {
      @Override     public void onFocusChange(View v, boolean hasFocus) {
          Edit_Tyep = 2;     } });

Button btn0 = (Button) mView.findViewById(R.id.btn_zero); btn0.setOnClickListener(listener); Button btn1 = (Button) mView.findViewById(R.id.btn_one); btn1.setOnClickListener(listener); Button btn2 = (Button) mView.findViewById(R.id.btn_two); btn2.setOnClickListener(listener); Button btn3 = (Button) mView.findViewById(R.id.btn_three); btn3.setOnClickListener(listener); Button btn4 = (Button) mView.findViewById(R.id.btn_four); btn4.setOnClickListener(listener); Button btn5 = (Button) mView.findViewById(R.id.btn_five); btn5.setOnClickListener(listener); Button btn6 = (Button) mView.findViewById(R.id.btn_six); btn6.setOnClickListener(listener); Button btn7 = (Button) mView.findViewById(R.id.btn_seven); btn7.setOnClickListener(listener); Button btn8 = (Button) mView.findViewById(R.id.btn_eight); btn8.setOnClickListener(listener); Button btn9 = (Button) mView.findViewById(R.id.btn_nine); btn9.setOnClickListener(listener); Button btndel = (Button) mView.findViewById(R.id.btn_del); btndel.setOnClickListener(listener); Button btnclear = (Button) mView.findViewById(R.id.btn_clear); btnclear.setOnClickListener(listener);

Button.OnClickListener listener = new Button.OnClickListener() {
      public void onClick(View v) {
          Editable editable = null;         int start = 0;         if (Edit_Tyep == 1) {
              editable = editText.getText();             start = editText.getSelectionStart();         } else if (Edit_Tyep == 2) {
              editable = text.getText();             start = text.getSelectionStart();         } else {
              editable = editText.getText();             start = editText.getSelectionStart();         }         switch (v.getId()) {
              case R.id.btn_zero:                 editable.insert(start, "0");                 break;             case R.id.btn_one:                 editable.insert(start, "1");                 break;             case R.id.btn_two:                 editable.insert(start, "2");                 break;             case R.id.btn_three:                 editable.insert(start, "3");                 break;             case R.id.btn_four:                 editable.insert(start, "4");                 break;             case R.id.btn_five:                 editable.insert(start, "5");                 break;             case R.id.btn_six:                 editable.insert(start, "6");                 break;             case R.id.btn_seven:                 editable.insert(start, "7");                 break;             case R.id.btn_eight:                 editable.insert(start, "8");                 break;             case R.id.btn_nine:                 editable.insert(start, "9");                 break; case R.id.btn_clear:                 if (editable != null)                     editable.delete(0, editable.length());                 break;             case R.id.btn_del:                 if (start > 0)                     editable.delete(start - 1, start);                 break;         }     } };

由于时间问题没有 给全代码  关键地方用颜色标出 其实很简单 相信应该能够看懂！