Android eclipse edittext 输入计算结果显示在另一个空的 edittext 上(自动)

Question

我正在申请计算 PMT 函数，但我在计算第一笔付款时卡住了。简短说明: 我的应用程序将有 3 个编辑文本，1 个用于价格，1 个用于百分比，最后一个用于它们的结果，例如我们输入价格 100.000，然后第一次付款 30 那么第三个将自动显示结果，在本例中为 30.000

Edittext1:
100000
Edittext2:
30
Edittext3:
30000(this one automatically calculate when we done give an input in the Edittext2)

这是代码:

    editText1 = (EditText) findViewById(R.id.editText1);
    editText2 = (EditText) findViewById(R.id.editText2);
    editText3 = (EditText) findViewById(R.id.editText3);

    editText2.addTextChangedListener(new TextWatcher() {

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

            String text1 = editText1.getText().toString();
            if (text1.length() != 0) {
                int input1 = Integer.valueOf(text1);

                int input2 = Integer.valueOf(s.toString());

                int output = (input1 * input2) / 100;
                editText3.setText(output + "");
            }

        }

        @Override
        public void beforeTextChanged(CharSequence s, int start, int count, int after) {

        }

        @Override
        public void afterTextChanged(Editable s) {
        }
    }); 

小数转换

public void makeDecimal(View v)
                {
                                ethint1.setRawInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);

                                DigitsKeyListener dkl = new DigitsKeyListener(true,true);
                                ethint1.setKeyListener(dkl);

                                ethint1.addTextChangedListener(new TextWatcher(){
                        private String current = "";

                        @Override
                        public void afterTextChanged(Editable s) {
                                String userInput=s.toString();

                                if(!userInput.toString().equals(current)){
                                                ethint1.removeTextChangedListener(this);

                                                String cleanString = userInput.replaceAll("[,]", "");

                                                if(cleanString.length()>0){
                                                                double parsed = Double.parseDouble(cleanString);                                                
                                                                String formated = DecimalFormat.getNumberInstance().format(parsed);

                                                                current = formated;
                                                                ethint1.setText(formated);
                                                                ethint1.setSelection(formated.length());
                                                }else{
                                                                ethint1.setText(cleanString);
                                                                ethint1.setSelection(cleanString.length());
                                                }

                                                ethint1.addTextChangedListener(this);
                    }
                        }
                        @Override
                        public void beforeTextChanged(CharSequence s, int start,
                                int count, int after) {
                        }
                        @Override
                        public void onTextChanged(CharSequence s, int start,
                                int before, int count) {
                        }
                    });                                                           
               }

ethint1 = edittext1 我改变了一些变量

logcat::::::::::::::::::::::::::

02-16 14:43:12.331: E/AndroidRuntime(609): FATAL EXCEPTION: main
02-16 14:43:12.331: E/AndroidRuntime(609): java.lang.NumberFormatException: unable to parse '1,000,000' as integer
02-16 14:43:12.331: E/AndroidRuntime(609):  at java.lang.Integer.parse(Integer.java:433)
02-16 14:43:12.331: E/AndroidRuntime(609):  at java.lang.Integer.parseInt(Integer.java:422)
02-16 14:43:12.331: E/AndroidRuntime(609):  at java.lang.Integer.parseInt(Integer.java:382)
02-16 14:43:12.331: E/AndroidRuntime(609):  at java.lang.Integer.valueOf(Integer.java:682)
02-16 14:43:12.331: E/AndroidRuntime(609):  at com.m4nd1r1tun45f1n4nc3.abcdefg.Mastercode$1.onTextChanged(Mastercode.java:43)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.widget.TextView.sendOnTextChanged(TextView.java:6131)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.widget.TextView.handleTextChanged(TextView.java:6172)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.widget.TextView$ChangeWatcher.onTextChanged(TextView.java:6316)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.text.SpannableStringBuilder.sendTextChange(SpannableStringBuilder.java:889)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:352)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.text.SpannableStringBuilder.change(SpannableStringBuilder.java:269)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:432)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:409)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.text.SpannableStringBuilder.replace(SpannableStringBuilder.java:28)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.view.inputmethod.BaseInputConnection.replaceText(BaseInputConnection.java:583)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.view.inputmethod.BaseInputConnection.commitText(BaseInputConnection.java:174)
02-16 14:43:12.331: E/AndroidRuntime(609):  at com.android.internal.widget.EditableInputConnection.commitText(EditableInputConnection.java:120)
02-16 14:43:12.331: E/AndroidRuntime(609):  at com.android.internal.view.IInputConnectionWrapper.executeMessage(IInputConnectionWrapper.java:247)
02-16 14:43:12.331: E/AndroidRuntime(609):  at com.android.internal.view.IInputConnectionWrapper$MyHandler.handleMessage(IInputConnectionWrapper.java:73)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.os.Handler.dispatchMessage(Handler.java:99)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.os.Looper.loop(Looper.java:123)
02-16 14:43:12.331: E/AndroidRuntime(609):  at android.app.ActivityThread.main(ActivityThread.java:4627)
02-16 14:43:12.331: E/AndroidRuntime(609):  at java.lang.reflect.Method.invokeNative(Native Method)
02-16 14:43:12.331: E/AndroidRuntime(609):  at java.lang.reflect.Method.invoke(Method.java:521)
02-16 14:43:12.331: E/AndroidRuntime(609):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
02-16 14:43:12.331: E/AndroidRuntime(609):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
02-16 14:43:12.331: E/AndroidRuntime(609):  at dalvik.system.NativeStart.main(Native Method)

问题已更新:: 有没有办法使两者都起作用(数字转换器和第三个编辑文本输出) .注意:对于数字转换器，我实际上想让它显示为货币 当我们将数字输入到 edittext1(ethint1) 中时，它会自动添加一个分隔符。示例:我们输入 100 它只会是 100(没有改变)然后当我们再输入一个数字时它将是 1,000(自动)等等，直到 10,000,000,000

/错误日志/问题上没有错误，但当我们输入百分比时会崩溃/

提前致谢，

Answer 1

换行

editText3.setText(output + "");

到

editText3.setText("" + output);

解释: output 是一个整数值，而 .setText() 接受一个 String 参数。在任何整数之前添加 ""(空白字符串)会将其转换为(让 Java 相信它是)字符串。