我想为EditText框设置最小和最大输入值。我正在为EditText创建一个简单的验证;它接受A-Z和0-9的值,最少5个字符,最多8个字符。
我将最大值和其他验证设置如下:
<EditText
android:id="@+id/edittextKode_Listing"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="5dp"
android:layout_marginLeft="5dp"
android:layout_alignTop="@+id/textKode_listing"
android:layout_toRightOf="@+id/textKode_listing"
android:maxLength="8"
android:inputType="textCapCharacters"
android:digits="0,1,2,3,4,5,6,7,8,9,ABCDEFGHIJKLMNOPQRSTVUWXYZ"
/>
但不能设置最小值要求。我的EditText框在一个警告对话框中。我尝试了以下代码来解决这个问题:
private void openInboxDialog() {
LayoutInflater inflater = this.getLayoutInflater();
// declare dialog view
final View dialogView = inflater.inflate(R.layout.kirim_layout, null);
final EditText edittextKode = (EditText) dialogView.findViewById(R.id.edittextKode_Listing);
final EditText edittextalamat = (EditText) dialogView.findViewById(R.id.edittextAlamat);
edittextKode.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
// TODO Auto-generated method stub
if(edittextKode.getText().toString().length() > 0){
if(edittextKode.getText().toString().length() < 5)
{
edittextKode.setError("Error");
Toast.makeText(GPSActivity.this, "Kode listing value not be less than 5", Toast.LENGTH_SHORT).show();
edittextKode.requestFocus();
}
}
}
});
final AlertDialog.Builder builder = new AlertDialog.Builder(GPSActivity.this);
builder.setTitle("Kirim").setView(dialogView)
.setNeutralButton("OK", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
gpsCoordinates = (TextView) findViewById(R.id.text_GPS_Coordinates);
kode = edittextKode.getText().toString();
alamat = edittextalamat.getText().toString();
catatan = edittextcatatan.getText().toString();
pengirim = edittextPengirim.getText().toString();
if (kode.length() > 0 && alamat.length() > 0
&& catatan.length() > 0 && pengirim.length() > 0) {
message = "Kode listing : " + kode + "\nAlamat : "
+ alamat + " \nCatatan : " + catatan + " \n Pengirim : " + pengirim
+ "\nKoordinat GPS : "
+ gpsCoordinates.getText().toString();
sendByGmail();
} else {
Toast.makeText(
getApplicationContext(),
"Please fill all three fields to send mail",
Toast.LENGTH_LONG).show();
}
}
});
builder.create();
builder.show();
}`
在此警报对话框中,我有两个EditText框。我想在first EditText上应用我的验证。我调用了setOnFocusChangeListener来检查它在焦点改变时的最小长度。如果长度小于5,则请求焦点,但它仍在第二个EditText框中键入。
谁能帮帮我。
发布于 2015-12-08 00:54:21
InputFilter[] lengthFilter = new InputFilter[1];
lengthFilter[0] = new InputFilter.LengthFilter(9); //Filter to 9 characters
mEditText.setFilters(lengthFilter);
这将创建一个筛选器来限制字符数。
发布于 2013-01-22 18:10:44
没有直接的方法可以做到这一点,据我所知,唯一的方法是当编辑文本失去焦点时,或者当用户提交信息时,您进行长度检查,看看它是否少于5个字符,例如
if (myTextBox.length() < 5)
{
Log.d("APP", "Sorry, you need to enter at least 5 characters";
}
else
{
Log.d("APP", "Input valid");
}
发布于 2013-01-22 18:25:54
你可以这样做,way....in,我检查了字符长度,如果它大于5,那么editText在触摸后会丢失focus..and,它会找回Focus..Try这个..i,希望这能对你有所帮助。
edittextKode.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
if(arg0.length()>5)
{
Toast.makeText(getApplicationContect(),"Max.value is 5",1).show();
edittextKode.setFocusable(false);
}
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
edittextKode.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View arg0, MotionEvent arg1)
{
// TODO Auto-generated method stub
edittextKode.setFocusableInTouchMode(true);
return false;
}
});
https://stackoverflow.com/questions/14454093
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