android는edittext의 입력을 숫자로 제한합니다. 숫자와 최대 하나만 입력할 수 있습니다.및 -

 public void limit(final EditText listValue3){
        listValue3.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {

            }

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {

            }

            @Override
            public void afterTextChanged(Editable s) {// edittext         
                if(needListen){//    ，  settext            
                    String numStr1 = s.toString();
                    try {
                        Double.parseDouble(numStr1);//                   
                    }catch (Exception ex) {
                        try {
                            showToast(StattioneReportActivity.this, "     ！", 800);
                            String numStr2 = s.toString();
                            double num = 0;
                            needListen = false;//    
                            String reg = "[^0-9.-]";
                            numStr2 = numStr1.replaceAll(reg, "");//      . -
                            if (numStr2.indexOf(".") != -1 && numStr2.indexOf(".") != (numStr2.length() - 1) && numStr2.charAt(numStr2.length() - 1) == '.') {
                                numStr2 = numStr2.substring(0, numStr2.length() - 1);
                            }//    . .                  .，         
                            if (numStr2.indexOf("-") != -1 && numStr2.indexOf("-") != (numStr2.length() - 1) && numStr2.charAt(numStr2.length() - 1) == '-') {
                                numStr2 = numStr2.substring(0, numStr2.length() - 1);
                            }
                            listValue3.setText(numStr2);//        
                            listValue3.setSelection(listValue3.length());
                            needListen = true;//    
                            num = Double.parseDouble(numStr2);//       
                            listValue3.setTextColor(0xFF000000);//              
                        } catch (Exception e) {
                            listValue3.setTextColor(0xFFFF0000);//      
                        }
                    }
                }
                needListen=true;
            }
        });
    }

//  toast     
    public static void showToast(final Activity activity, final String word, final long time) {
        activity.runOnUiThread(new Runnable() {
            public void run() {
                try {
                    final Toast toast = Toast.makeText(activity, word, Toast.LENGTH_LONG);
                    toast.show();
                    Handler handler = new Handler();
                    handler.postDelayed(new Runnable() {
                        public void run() {
                            toast.cancel();
                        }
                    }, time);
                } catch (Exception e) {
                    Timber.e(e.toString());
                }
            }
        });
    }