1
我有兩個EditText。在第一個中,用戶輸入一個數字,可以是小數。在第二個EditText中,數字顯示,但格式化,四捨五入。我使第二個EditText不可點擊,因爲用戶不應該能夠更改此值。由於風格的原因,我寧願使用EditText代替TextView。問題是與逗號十進制錯誤的外國數字。我的應用使用逗號分隔符的人得到這個錯誤java.lang.NumberFormatException: Invalid double: "1,60934"
。Android EditText - 十進制分隔符
XML文件
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main" tools:context=".MainActivity">
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:gravity="center"
android:id="@+id/value1"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:inputType="numberDecimal"
android:ems="10"
android:id="@+id/value2"
android:layout_marginTop="100dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:clickable="false"
android:cursorVisible="false"
android:focusable="false"
android:focusableInTouchMode="false"
android:gravity="center"/>
</RelativeLayout>
的Java文件
public class MainActivity extends AppCompatActivity {
public static EditText value1;
public static EditText value2;
public static double value1var;
public static double value2var;
public static DecimalFormat df;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
df = new DecimalFormat("0.#####", new DecimalFormatSymbols(Locale.FRANCE));
value1 = (EditText)findViewById(R.id.value1);
value2 = (EditText)findViewById(R.id.value2);
value1.setText(df.format(1.0));
value2.setText(df.format(1000));
value1var = Double.parseDouble(value1.getText().toString());
value2var = Double.parseDouble(value2.getText().toString());
value1.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable s) {
String value = s.toString();
double valuevar = Double.parseDouble(s.toString());
if(value.length() > 0){
value2.setText(df.format(valuevar));
}
}
@Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
@Override
public void onTextChanged(final CharSequence s, int start, int before, int count) {
}
});
}
任何想法如何解決呢?