我有一个函数可以将输入转换为货币格式example: 1000 to 1,000我使用此函数来处理我的edittext价格输入，当我们在edittext中输入数字时它会自动转换。现在我正在制作另一个有几十个textview的活动，它的表格会显示一些价格。现在我使用相同的函数来处理每个textview（一个函数一个textview），而我有超过1个textview。我处理这些文本视图的代码太长了。我想知道我是否可以有一个更好的功能，可以转换多个textviews的输入
数字转换器功能：
public void makeDecimal()
{
txtBox.setRawInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL);
DigitsKeyListener dkl = new DigitsKeyListener(true,true);
txtBox.setKeyListener(dkl);
txtBox.addTextChangedListener(new TextWatcher(){
private String current = "";
@Override
public void afterTextChanged(Editable s) {
String userInput=s.toString();
if(!userInput.toString().equals(current)){
txtBox.removeTextChangedListener(this);
String cleanString = userInput.replaceAll("[,]", "");
if(cleanString.length()>0){
double parsed = Double.parseDouble(cleanString);
String formated = DecimalFormat.getNumberInstance(Locale.ENGLISH).format(parsed);
current = formated;
txtBox.setText(formated);
txtBox.setSelection(formated.length());
}else{
txtBox.setText(cleanString);
txtBox.setSelection(cleanString.length());
}
txtBox.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) {
}
});
}
我的活动有很多短信：
public class TableOutput extends Activity implements TextWatcher{
TextView try10,try1,try2,try3,try4,try5,try6,try7,try8,try9;
String a,a1,a2,a3,a4,a5,a6,a7,a8,a9;
TextView trying,trying1,trying2,trying3,trying4,trying5,trying6,trying7,trying8,trying9;
String b,b1,b2,b3,b4,b5,b6,b7,b8,b9;
@Override
protected void onCreate(Bundle bundle) {
// TODO Auto-generated method stub
super.onCreate(bundle);
setContentView(R.layout.tableoutputsimulasikredit);
try10 = (TextView) findViewById(R.id.tumbal1);
try1 = (TextView) findViewById(R.id.tumbal2);
try2= (TextView) findViewById(R.id.tumbal3);
try3 = (TextView) findViewById(R.id.tumbal4);
try4 = (TextView) findViewById(R.id.tumbal5);
try5 = (TextView) findViewById(R.id.tumbal6);
try6 = (TextView) findViewById(R.id.tumbal7);
try7 = (TextView) findViewById(R.id.tumbal8);
try8 = (TextView) findViewById(R.id.tumbal9);
try9 = (TextView) findViewById(R.id.tumbal10);
trying = (TextView) findViewById(R.id.tumbalaa1);
trying1 = (TextView) findViewById(R.id.tumbalaa2);
trying2 = (TextView) findViewById(R.id.tumbalaa3);
trying3 = (TextView) findViewById(R.id.tumbalaa4);
trying4 = (TextView) findViewById(R.id.tumbalaa5);
trying5 = (TextView) findViewById(R.id.tumbalaa6);
trying6 = (TextView) findViewById(R.id.tumbalaa7);
trying7 = (TextView) findViewById(R.id.tumbalaa8);
trying8 = (TextView) findViewById(R.id.tumbalaa9);
trying9 = (TextView) findViewById(R.id.tumbalaa10);
bundle = getIntent().getExtras();
long tumbalnya1 = bundle.getLong("tumbal1");
long tumbalnya2 = bundle.getLong("tumbal2");
long tumbalnya3 = bundle.getLong("tumbal3");
long tumbalnya4 = bundle.getLong("tumbal4");
long tumbalnya5 = bundle.getLong("tumbal5");
long tumbalnya6 = bundle.getLong("tumbal6");
long tumbalnya7 = bundle.getLong("tumbal7");
long tumbalnya8 = bundle.getLong("tumbal8");
long tumbalnya9 = bundle.getLong("tumbal9");
long tumbalnya10 = bundle.getLong("tumbal10");
long tumbalaanya1 = bundle.getLong("tumbalaa1");
long tumbalaanya2 = bundle.getLong("tumbalaa2");
long tumbalaanya3 = bundle.getLong("tumbalaa3");
long tumbalaanya4 = bundle.getLong("tumbalaa4");
long tumbalaanya5 = bundle.getLong("tumbalaa5");
long tumbalaanya6 = bundle.getLong("tumbalaa6");
long tumbalaanya7 = bundle.getLong("tumbalaa7");
long tumbalaanya8 = bundle.getLong("tumbalaa8");
long tumbalaanya9 = bundle.getLong("tumbalaa9");
long tumbalaanya10 = bundle.getLong("tumbalaa10");
a = Long.toString(tumbalnya1);
a1 = Long.toString(tumbalnya2);
a2 = Long.toString(tumbalnya3);
a3 = Long.toString(tumbalnya4);
a4 = Long.toString(tumbalnya5);
a5 = Long.toString(tumbalnya6);
a6 = Long.toString(tumbalnya7);
a7 = Long.toString(tumbalnya8);
a8 = Long.toString(tumbalnya9);
a9 = Long.toString(tumbalnya10);
b = Long.toString(tumbalaanya1);
b1 = Long.toString(tumbalaanya2);
b2 = Long.toString(tumbalaanya3);
b3 = Long.toString(tumbalaanya4);
b4 = Long.toString(tumbalaanya5);
b5 = Long.toString(tumbalaanya6);
b6 = Long.toString(tumbalaanya7);
b7 = Long.toString(tumbalaanya8);
b8 = Long.toString(tumbalaanya9);
b9 = Long.toString(tumbalaanya10);
try10.setText(a +" IDR");
try1.setText(a1 +" IDR");
try2.setText(a2 +" IDR");
try3.setText(a3 +" IDR");
try4.setText(a4 +" IDR");
try5.setText(a5 +" IDR");
try6.setText(a6 +" IDR");
try7.setText(a7 +" IDR");
try8.setText(a8 +" IDR");
try9.setText(a9 +" IDR");
trying.setText(b + " IDR");
trying1.setText(b1 + " IDR");
trying2.setText(b2 + " IDR");
trying3.setText(b3 + " IDR");
trying4.setText(b4 + " IDR");
trying5.setText(b5 + " IDR");
trying6.setText(b6 + " IDR");
trying7.setText(b7 + " IDR");
trying8.setText(b8 + " IDR");
trying9.setText(b9 + " IDR");
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
// TODO Auto-generated method stub
}
@Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
// TODO Auto-generated method stub
}
}
答案 0 :(得分：1)
您可以使用InputFilter界面。只需传递regex货币格式
public class CurrencyFormaterInputFilter implements InputFilter {
Pattern mPattern = Pattern.compile("(0|[1-9]+[0-9]*)?(\\.[0-9]{0,2})?");
@Override
public CharSequence filter(
CharSequence source,
int start,
int end,
Spanned dest,
int dstart,
int dend) {
String result =
dest.subSequence(0, dstart)
+ source.toString()
+ dest.subSequence(dend, dest.length());
Matcher matcher = mPattern.matcher(result);
if (!matcher.matches()) {
return dest.subSequence(dstart, dend);
}
return null;
}
}
使用方法：
editText.setFilters(new InputFilter[] {new CurrencyFormaterInputFilter()});
您可以根据需要更改正则表达式