有没有办法在Android中定义EditText的最小值和最大值？

我想为

EditText

定义一个最小值和最大值

例如：如果任何人试图在其中输入月份值，则该值必须介于1-12之间

我可以使用

TextWatcher

来完成，但我想知道是否有其他方法可以在布局文件或其他地方完成

编辑：

---

我不想限制字符数。我想限制这个值。例如，如果我在输入12时限制month

EditText

w个字符，它将接受它，但如果我输入22，它在输入时不能接受它。

首先创建此类：

package com.test;

import android.text.InputFilter;
import android.text.Spanned;

public class InputFilterMinMax implements InputFilter {

    private int min, max;

    public InputFilterMinMax(int min, int max) {
        this.min = min;
        this.max = max;
    }

    public InputFilterMinMax(String min, String max) {
        this.min = Integer.parseInt(min);
        this.max = Integer.parseInt(max);
    }

    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {   
        try {
            int input = Integer.parseInt(dest.toString() + source.toString());
            if (isInRange(min, max, input))
                return null;
        } catch (NumberFormatException nfe) { }     
        return "";
    }

    private boolean isInRange(int a, int b, int c) {
        return b > a ? c >= a && c <= b : c >= b && c <= a;
    }
}

这将允许用户仅输入从1到12的值

编辑：

edittext1.setFilters(new InputFilter[]{filter1(somevalue),filter2(somevalue)});

使用android:inputType=“number”设置编辑文本

您可以在上找到更多详细信息

---

谢谢。

先上这门课：

package com.test;

import android.text.InputFilter;
import android.text.Spanned;

public class InputFilterMinMax implements InputFilter {

    private int min, max;

    public InputFilterMinMax(int min, int max) {
        this.min = min;
        this.max = max;
    }

    public InputFilterMinMax(String min, String max) {
        this.min = Integer.parseInt(min);
        this.max = Integer.parseInt(max);
    }

    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {   
        try {
            int input = Integer.parseInt(dest.toString() + source.toString());
            if (isInRange(min, max, input))
                return null;
        } catch (NumberFormatException nfe) { }     
        return "";
    }

    private boolean isInRange(int a, int b, int c) {
        return b > a ? c >= a && c <= b : c >= b && c <= a;
    }
}

这将允许用户仅输入从1到12的值

编辑：

edittext1.setFilters(new InputFilter[]{filter1(somevalue),filter2(somevalue)});

使用android:inputType=“number”设置编辑文本

您可以在上找到更多详细信息

---

谢谢。

请检查此代码

    String pass = EditText.getText().toString(); 
    if(TextUtils.isEmpty(pass) || pass.length < [YOUR MIN LENGTH]) 
    { 
       EditText.setError("You must have x characters in your txt"); 
        return; 
    }

    //continue processing



edittext.setOnFocusChangeListener( new OnFocusChangeListener() {

       @Override
       public void onFocusChange(View v, boolean hasFocus) {
          if(hasFocus) {
           // USE your code here 
  }

String pass=EditText.getText（）.toString（）；
if（TextUtils.isEmpty（pass）| | pass.length<[您的最小长度]）
{ 
setError（“txt中必须有x个字符”）；
返回；
}
//继续处理
setOnFocusChangeListener（新的OnFocusChangeListener（）{
@凌驾
public void onFocusChange（视图v，布尔hasFocus）{
如果（hasFocus）{
//在这里使用您的代码
}

有关edittext和带有文本监视程序的edittextfilteres的更多详细信息，请使用以下链接

---

请检查此代码

    String pass = EditText.getText().toString(); 
    if(TextUtils.isEmpty(pass) || pass.length < [YOUR MIN LENGTH]) 
    { 
       EditText.setError("You must have x characters in your txt"); 
        return; 
    }

    //continue processing



edittext.setOnFocusChangeListener( new OnFocusChangeListener() {

       @Override
       public void onFocusChange(View v, boolean hasFocus) {
          if(hasFocus) {
           // USE your code here 
  }

String pass=EditText.getText（）.toString（）；
if（TextUtils.isEmpty（pass）| | pass.length<[您的最小长度]）
{ 
setError（“txt中必须有x个字符”）；
返回；
}
//继续处理
setOnFocusChangeListener（新的OnFocusChangeListener（）{
@凌驾
public void onFocusChange（视图v，布尔hasFocus）{
如果（hasFocus）{
//在这里使用您的代码
}

有关edittext和带有文本监视程序的edittextfilteres的更多详细信息，请使用以下链接

---

Pratik的代码中有一个小错误。例如，如果一个值是10，并且您在开始时添加了一个1，使之成为110，则filter函数会将新值视为101

有关此问题的修复方法，请参见下文：

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {
        // Removes string that is to be replaced from destination
        // and adds the new string in.
        String newVal = dest.subSequence(0, dstart)
                // Note that below "toString()" is the only required:
                + source.subSequence(start, end).toString()
                + dest.subSequence(dend, dest.length());
        int input = Integer.parseInt(newVal);
        if (isInRange(min, max, input))
            return null;
    } catch (NumberFormatException nfe) { }
    return "";
}

---

Pratik的代码中有一个小错误。例如，如果一个值是10，而您在开始处添加了一个1，使之成为110，则filter函数会将新值视为101

有关此问题的修复方法，请参见下文：

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {
        // Removes string that is to be replaced from destination
        // and adds the new string in.
        String newVal = dest.subSequence(0, dstart)
                // Note that below "toString()" is the only required:
                + source.subSequence(start, end).toString()
                + dest.subSequence(dend, dest.length());
        int input = Integer.parseInt(newVal);
        if (isInRange(min, max, input))
            return null;
    } catch (NumberFormatException nfe) { }
    return "";
}

---

我扩展了@Pratik Sharmas代码以使用BigDecimal对象而不是int，这样它就可以接受较大的数字，并考虑EditText中任何非数字的格式（如货币格式，即空格、逗号和句点）

编辑：请注意，此实现在bigdecime上设置了2作为最小有效数字（请参见MIN_SIG_FIG常量），因为我将其用于货币，所以小数点前始终有2个前导数字。根据您自己的实现需要更改MIN_SIG_FIG常量

public class InputFilterMinMax implements InputFilter {
private static final int MIN_SIG_FIG = 2;
private BigDecimal min, max;

public InputFilterMinMax(BigDecimal min, BigDecimal max) {
    this.min = min;
    this.max = max;
}

public InputFilterMinMax(String min, String max) {
    this.min = new BigDecimal(min);
    this.max = new BigDecimal(max);
}

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart,
        int dend) {
    try {
        BigDecimal input = formatStringToBigDecimal(dest.toString()
                + source.toString());

        if (isInRange(min, max, input)) {

            return null;
        }
    } catch (NumberFormatException nfe) {

    }
    return "";
}

private boolean isInRange(BigDecimal a, BigDecimal b, BigDecimal c) {
    return b.compareTo(a) > 0 ? c.compareTo(a) >= 0 && c.compareTo(b) <= 0
            : c.compareTo(b) >= 0 && c.compareTo(a) <= 0;
}

public static BigDecimal formatStringToBigDecimal(String n) {

    Number number = null;
    try {
        number = getDefaultNumberFormat().parse(n.replaceAll("[^\\d]", ""));

        BigDecimal parsed = new BigDecimal(number.doubleValue()).divide(new BigDecimal(100), 2,
                BigDecimal.ROUND_UNNECESSARY);
        return parsed;
    } catch (ParseException e) {
        return new BigDecimal(0);
    }
}

private static NumberFormat getDefaultNumberFormat() {
    NumberFormat nf = NumberFormat.getInstance(Locale.getDefault());
    nf.setMinimumFractionDigits(MIN_SIG_FIG);
    return nf;
}

公共类InputFilterMax实现InputFilter{
专用静态最终int MIN_SIG_FIG=2；
私有大十进制最小值，最大值；
公共InputFilterMinMax（最小BigDecimal，最大BigDecimal）{
this.min=min；
this.max=max；
}
公共InputFilterMinMax（字符串最小值、字符串最大值）{
this.min=新的BigDecimal（min）；
this.max=新的BigDecimal（max）；
}
@凌驾
公共CharSequence筛选器（CharSequence源、int开始、int结束、跨距目标、int开始、，
内特丹德酒店{
试一试{
BigDecimal输入=formatStringToBigDecimal（dest.toString（）格式）
+source.toString（））；
if（isInRange（最小、最大、输入））{
返回null；
}
}捕获（NumberFormatException nfe）{
}
返回“”；
}
私有布尔值isInRange（BigDecimal a、BigDecimal b、BigDecimal c）{
返回b.compareTo（a）>0？c.compareTo（a）>=0&&c.compareTo（b）=0&&c.compareTo（a）我扩展了@Pratik Sharmas代码以使用BigDecimal对象而不是int，这样它就可以接受较大的数字，并考虑编辑文本中任何非数字的格式（如货币格式，即空格、逗号和句点）

编辑：请注意，此实现在bigdecime上设置了2作为最小有效数字（请参见MIN_SIG_FIG常量），因为我将其用于货币，所以小数点前始终有2个前导数字。根据您自己的实现需要更改MIN_SIG_FIG常量

public class InputFilterMinMax implements InputFilter {
private static final int MIN_SIG_FIG = 2;
private BigDecimal min, max;

public InputFilterMinMax(BigDecimal min, BigDecimal max) {
    this.min = min;
    this.max = max;
}

public InputFilterMinMax(String min, String max) {
    this.min = new BigDecimal(min);
    this.max = new BigDecimal(max);
}

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart,
        int dend) {
    try {
        BigDecimal input = formatStringToBigDecimal(dest.toString()
                + source.toString());

        if (isInRange(min, max, input)) {

            return null;
        }
    } catch (NumberFormatException nfe) {

    }
    return "";
}

private boolean isInRange(BigDecimal a, BigDecimal b, BigDecimal c) {
    return b.compareTo(a) > 0 ? c.compareTo(a) >= 0 && c.compareTo(b) <= 0
            : c.compareTo(b) >= 0 && c.compareTo(a) <= 0;
}

public static BigDecimal formatStringToBigDecimal(String n) {

    Number number = null;
    try {
        number = getDefaultNumberFormat().parse(n.replaceAll("[^\\d]", ""));

        BigDecimal parsed = new BigDecimal(number.doubleValue()).divide(new BigDecimal(100), 2,
                BigDecimal.ROUND_UNNECESSARY);
        return parsed;
    } catch (ParseException e) {
        return new BigDecimal(0);
    }
}

private static NumberFormat getDefaultNumberFormat() {
    NumberFormat nf = NumberFormat.getInstance(Locale.getDefault());
    nf.setMinimumFractionDigits(MIN_SIG_FIG);
    return nf;
}

公共类InputFilterMax实现InputFilter{
专用静态最终int MIN_SIG_FIG=2；
私有大十进制最小值，最大值；
公共InputFilterMinMax（最小BigDecimal，最大BigDecimal）{
this.min=min；
this.max=max；
}
公共InputFilterMinMax（字符串最小值、字符串最大值）{
this.min=新的BigDecimal（min）；
this.max=新的BigDecimal（max）；
}
@凌驾
公共CharSequence筛选器（CharSequence源、int开始、int结束、跨距目标、int开始、，
内特丹德酒店{
试一试{
BigDecimal输入=formatStringToBigDecimal（dest.toString（）格式）
+source.toString（））；
if（isInRange（最小、最大、输入））{
返回null；
}
}捕获（NumberFormatException nfe）{
}
返回“”；
}
私有布尔值isInRange（BigDecimal a、BigDecimal b、BigDecimal c）{
返回b.compareTo（a）>0？c.compareTo（a）>=0&&c.compareTo（b）=0&&c.compareTo（a）我用一种更简单的方法将最小/最大值设置为编辑文本。我使用算术键盘，使用此方法：

 private int limit(EditText x,int z,int limin,int limax){

    if( x.getText().toString()==null || x.getText().toString().length()==0){
        x.setText(Integer.toString(limin));
        return z=0;
    }
    else{
        z = Integer.parseInt(x.getText().toString());
         if(z <limin || z>limax){
             if(z<10){
                 x.setText(Integer.toString(limin));
                return  z=0;
             }
            else{
                x.setText(Integer.toString(limax));
                return z=limax;
            }

         }
         else
            return z = Integer.parseInt(x.getText().toString());
    }
 }

private int limit（编辑文本x、int z、int limin、int limax）{
如果（x.getText（）.toString（）==null | | x.getText（）.toString（）.length（）==0）{
x、 setText（Integer.toString（limin））；
if (!(number.startsWith("01")) || number.length() < 8 || number.length() >10 ) {  
.
.
.
}

   ....else if (!(Helper.isValidMobilePhone(textMobileNo))){
                        Helper.setEditTextError(etMobileNo,"Invalid Mobile Number");
                    }......

public class InputFilterMinMax implements InputFilter {

private int min, max;

public InputFilterMinMax(int min, int max) {
    this.min = min;
    this.max = max;
}

public InputFilterMinMax(String min, String max) {
    this.min = Integer.parseInt(min);
    this.max = Integer.parseInt(max);
}

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {
        String stringInput = dest.toString() + source.toString();
        int value;
        if (stringInput.length() == 1 && stringInput.charAt(0) == '-') {
            value = -1;
        } else {
            value = Integer.parseInt(stringInput);
        }
        if (isInRange(min, max, value))
            return null;
    } catch (NumberFormatException nfe) {
    }
    return "";
}

private boolean isInRange(int min, int max, int value) {
    return max > min ? value >= min && value <= max : value >= max && value <= min;
}
}

import android.text.TextWatcher;


public abstract class MinMaxTextWatcher implements TextWatcher {
    int min, max;
    public MinMaxTextWatcher(int min, int max) {
        super();
        this.min = min;
        this.max = max;
    }

}

private void limitEditText(final EditText ed, int min, int max) {
    ed.addTextChangedListener(new MinMaxTextWatcher(min, max) {
        @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) {
            String str = s.toString();
            int n = 0;
            try {
                n = Integer.parseInt(str);
                if(n < min) {
                    ed.setText(min);
                    Toast.makeText(getApplicationContext(), "Minimum allowed is " + min, Toast.LENGTH_SHORT).show();
                }
                else if(n > max) {
                    ed.setText("" + max);
                    Toast.makeText(getApplicationContext(), "Maximum allowed is " + max, Toast.LENGTH_SHORT).show();
                }
            }
            catch(NumberFormatException nfe) {
                ed.setText("" + min);
                Toast.makeText(getApplicationContext(), "Bad format for number!" + max, Toast.LENGTH_SHORT).show();
            }
        }
    });
}

// in filter calss
 @Override
 public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
        try {
            // Remove the string out of destination that is to be replaced
            int input;
            String newVal = dest.toString() + source.toString();
            if (newVal.length() == 1 && newVal.charAt(0) == '-') {
                input = min; //allow
            }
            else {
                newVal = dest.toString().substring(0, dstart) + dest.toString().substring(dend, dest.toString().length());
                // Add the new string in
                newVal = newVal.substring(0, dstart) + source.toString() + newVal.substring(dstart, newVal.length());
                input = Integer.parseInt(newVal);
            }

            //int input = Integer.parseInt(dest.toString() + source.toString());

            if (isInRange(min, max, input))
                return null;
        } catch (NumberFormatException nfe) {
        }
        return "";
    }

//also the filler must set as below: in the edit createview
// to allow enter number and backspace.
et.setFilters(new InputFilter[]{new InputFilterMinMax(min >= 10 ?  "0" : String.valueOf(min), max >-10 ? String.valueOf(max) :"0" )});



//and at same time must check range in the TextWatcher()
et.addTextChangedListener(new
 TextWatcher() {

      @Override
      public void afterTextChanged (Editable editable)
      {
         String tmpstr = et.getText().toString();
         if (!tmpstr.isEmpty() && !tmpstr.equals("-") ) {
             int datavalue = Integer.parseInt(tmpstr);
             if ( datavalue >= min || datavalue <= max) {
               // accept data ...     
             }
         }
      }
 });

 import android.text.InputFilter;
 import android.text.Spanned;

public class InputFilterMinMax implements InputFilter {

    private int min, max;

    public InputFilterMinMax(int min, int max) {
        this.min = min;
        this.max = max;
    }

    public InputFilterMinMax(String min, String max) {
        this.min = Integer.parseInt(min);
        this.max = Integer.parseInt(max);
    }

    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

        try {
            if(end==1)
                min=Integer.parseInt(source.toString());
            int input = Integer.parseInt(dest.toString() + source.toString());
            if (isInRange(min, max, input))
                return null;
        } catch (NumberFormatException nfe) {
        }
        return "";
    }

    private boolean isInRange(int a, int b, int c) {

        return b > a ? c >= a && c <= b : c >= b && c <= a;
    }}

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {
        String prefix = dest.toString().substring(0, dstart);
        String insert = source.toString();
        String suffix = dest.toString().substring(dend);
        String input_string = prefix + insert + suffix;
        int input = Integer.parseInt(input_string);

        if (isInRange(min, max, input) || input_string.length() < String.valueOf(min).length())
            return null;
    } catch (NumberFormatException nfe) { }
    return "";
}

private boolean isInRange(int a, int b, int c) {
    return b > a ? c >= a && c <= b : c >= b && c <= a;
}

public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {
        // Remove the string out of destination that is to be replaced
        String newVal = dest.toString().substring(0, dstart) + dest.toString().substring(dend, dest.toString().length());
        // Add the new string in
        newVal = newVal.substring(0, dstart) + source.toString() + newVal.substring(dstart, newVal.length());
        //****Add this line (below) to allow Negative values***// 
        if(newVal.equalsIgnoreCase("-") && min < 0)return null;
        int input = Integer.parseInt(newVal);
        if (isInRange(min, max, input))
            return null;
    } catch (NumberFormatException nfe) {
        nfe.printStackTrace();
    }
    return "";
}

int input = Integer.parseInt(dest.toString() + source.toString());

String destString = dest.toString();
  String inputString = destString.substring(0, dstart) + source.toString() + destString.substring(dstart);
  int input = Integer.parseInt(inputString);

public class InputFilterIntRange implements InputFilter, View.OnFocusChangeListener {

    private final int min, max;

    public InputFilterIntRange(int min, int max) {
        if (min > max) {
            // Input sanitation for the filter itself
            int mid = max;
            max = min;
            min = mid;
        }
        this.min = min;
        this.max = max;
    }

    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

        // Determine the final string that will result from the attempted input
        String destString = dest.toString();
        String inputString = destString.substring(0, dstart) + source.toString() + destString.substring(dstart);

        // Don't prevent - sign from being entered first if min is negative
        if (inputString.equalsIgnoreCase("-") && min < 0) return null;

        try {
            int input = Integer.parseInt(inputString);
            if (mightBeInRange(input))
                return null;
        } catch (NumberFormatException nfe) {}

        return "";
    }

    @Override
    public void onFocusChange(View v, boolean hasFocus) {

        // Since we can't actively filter all values
        // (ex: range 25 -> 350, input "15" - could be working on typing "150"),
        // lock values to range after text loses focus
        if (!hasFocus) {
            if (v instanceof EditText) sanitizeValues((EditText) v);
        }
    }

    private boolean mightBeInRange(int value) {
        // Quick "fail"
        if (value >= 0 && value > max) return false;
        if (value >= 0 && value >= min) return true;
        if (value < 0 && value < min) return false;
        if (value < 0 && value <= max) return true;

        boolean negativeInput = value < 0;

        // If min and max have the same number of digits, we can actively filter
        if (numberOfDigits(min) == numberOfDigits(max)) {
            if (!negativeInput) {
                if (numberOfDigits(value) >= numberOfDigits(min) && value < min) return false;
            } else {
                if (numberOfDigits(value) >= numberOfDigits(max) && value > max) return false;
            }
        }

        return true;
    }

    private int numberOfDigits(int n) {
        return String.valueOf(n).replace("-", "").length();
    }

    private void sanitizeValues(EditText valueText) {
        try {
            int value = Integer.parseInt(valueText.getText().toString());
            // If value is outside the range, bring it up/down to the endpoint
            if (value < min) {
                value = min;
                valueText.setText(String.valueOf(value));
            } else if (value > max) {
                value = max;
                valueText.setText(String.valueOf(value));
            }
        } catch (NumberFormatException nfe) {
            valueText.setText("");
        }
    }

}

EditText myEditText = findViewById(R.id.my_edit_text);
InputFilterIntRange rangeFilter = new InputFilterIntRange(25, 350);
myEditText.setFilters(new InputFilter[]{rangeFilter});

// Following line is only necessary if your range is like [25, 350] or [-350, -25].
// If your range has 0 as an endpoint or allows some negative AND positive numbers, 
// all cases will be handled pre-emptively.
myEditText.setOnFocusChangeListener(rangeFilter);

public class EditTextCloseEvent extends AppCompatEditText {

    public EditTextCloseEvent(Context context) {
        super(context);
    }

    public EditTextCloseEvent(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public EditTextCloseEvent(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean onKeyPreIme(int keyCode, KeyEvent event) {
        if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
            for (InputFilter filter : this.getFilters()) {
                if (filter instanceof InputFilterIntRange)
                    ((InputFilterIntRange) filter).onFocusChange(this, false);
            }
        }
        return super.dispatchKeyEvent(event);
    }
}

// Quick "fail"
if (value >= 0 && value > max) return false;
if (value >= 0 && value >= min) return true;
if (value < 0 && value < min) return false;
if (value < 0 && value <= max) return true;

import android.text.InputFilter;
import android.text.Spanned;
import android.util.Log;

/**
* Created by 21 on 4/5/2016.
*/
public class MinMaxFilter implements InputFilter {

private double mIntMin, mIntMax;

public MinMaxFilter(double minValue, double maxValue) {
    this.mIntMin = minValue;
    this.mIntMax = maxValue;
}

public MinMaxFilter(String minValue, String maxValue) {
    this.mIntMin = Double.parseDouble(minValue);
    this.mIntMax = Double.parseDouble(maxValue);
}

@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {
        Boolean isNeg = false;
        String provi = dest.toString() + source.toString();
        if("-".equals(provi.substring(0,1))){
            if(provi.length()>1) {
                provi = provi.substring(1, provi.length());
                isNeg = true;
            }
            else{
                if("".equals(source)){
                    return null;
                }
                return "-";
            }
        }

        double input = Double.parseDouble(provi); 
        if(isNeg){input = input * (-1);}

        if (isInRange(mIntMin, mIntMax, input)) {
            return null;
        }
    } catch (Exception nfe) {}
    return "";
}

private boolean isInRange(double a, double b, double c) {
    if((c>=a && c<=b)){
        return true;
    }
    else{
        return false;
    }
}
}

EditText edittext = new EditText(context);
editext.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_SIGNED);
eInt.setFilters(new InputFilter[]{new MinMaxFilter(min, max)});

<TextView
                    android:id="@+id/txt_Mass_smallWork"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:textColor="#000"
                    android:textSize="20sp"
                    android:textStyle="bold" />

EditText ed = findViewById(R.id.txt_Mass_smallWork);
    ed.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int i1, int i2) {`

        }

        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {
            if(!charSequence.equals("")) {
                int massValue = Integer.parseInt(charSequence.toString());
                if (massValue > 10) {
                    ed.setFilters(new InputFilter[]{new InputFilter.LengthFilter(2)});
                } else {
                    ed.setFilters(new InputFilter[]{new InputFilter.LengthFilter(3)});
                }
            }
        }

        @Override
        public void afterTextChanged(Editable editable) {

        }
    });

package ir.aboy.electronicarsenal;

import android.text.InputFilter;
import android.text.Spanned;

public class InputFilterMinMax implements InputFilter {

  private int min, max;
  int input;

  InputFilterMinMax(int min, int max) {
    this.min = min;
    this.max = max;
  }

  public InputFilterMinMax(String min, String max) {
    this.min = Integer.parseInt(min);
    this.max = Integer.parseInt(max);
  }

  @Override
  public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    try {

      if ((dest.toString() + source.toString()).equals("-")) {
        source = "-1";
      }

      input = Integer.parseInt(dest.toString() + source.toString());
      if (isInRange(min, max, input))
        return null;

    } catch (NumberFormatException ignored) {
    }
    return "";
  }

  private boolean isInRange(int a, int b, int c) {
    return b > a ? c >= a && c <= b : c >= b && c <= a;
  }

}

findViewById(R.id.myEditText).setFilters(new InputFilter[]{ new InputFilterMinMax(1, 12)});

android:inputType="number|numberSigned"

import android.text.InputFilter
import android.text.Spanned

class InputFilterRange(private var range: IntRange) : InputFilter {

    override fun filter(source: CharSequence, start: Int, end: Int, dest: Spanned, dstart: Int, dend: Int) = try {
        val input = Integer.parseInt(dest.toString() + source.toString())
        if (range.contains(input)) null else ""
    } catch (nfe: NumberFormatException) {
        ""
    }
}

EditText subTargetTime = (EditText) findViewById(R.id.my_time);
subTargetTime.setFilters( new InputFilter[] {
                new InputFilter() {
                    @Override
                    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
                        int t = Integer.parseInt(source.toString());
                        if(t <8) { t = 8; }
                        return t+"";

                    }
                }
        });

if (message.trim().length() >= 1 && message.trim().length() <= 12) {
  // do stuf
} else {
  // Too short or too long
}

class InputFilterMinMax : InputFilter {

private var min: Double = MIN_LIMIT
private var max: Double = MIN_LIMIT

constructor(min: Int, max: Int) {
    this.min = min.toDouble()
    this.max = max.toDouble()
}

constructor(min: String, max: String) {
    this.min = min.toDouble()
    this.max = max.toDouble()
}

constructor(min: Double, max: Double) {
    this.min = min
    this.max = max
}

override fun filter(
    source: CharSequence,
    start: Int,
    end: Int,
    dest: Spanned,
    dstart: Int,
    dend: Int
): CharSequence? {
    try {
        val input = (dest.toString() + source.toString()).toDouble()
        if (isInRange(min, max, input))
            return null
    } catch (nfe: NumberFormatException) {
        Timber.e(nfe)
    }

    return ""
}

private fun isInRange(a: Double, b: Double, c: Double): Boolean {
    return if (b > a) c in a..b else c in b..a
}
}

class InputFilterMinMax: InputFilter {
    private var min:Int = 0
    private var max:Int = 0
    constructor(min:Int, max:Int) {
        this.min = min
        this.max = max
    }
    constructor(min:String, max:String) {
        this.min = Integer.parseInt(min)
        this.max = Integer.parseInt(max)
    }
    override fun filter(source:CharSequence, start:Int, end:Int, dest: Spanned, dstart:Int, dend:Int): CharSequence? {
        try
        {
            val input = Integer.parseInt(dest.toString() + source.toString())
            if (isInRange(min, max, input))
                return null
        }
        catch (nfe:NumberFormatException) {}
        return ""
    }
    private fun isInRange(a:Int, b:Int, c:Int):Boolean {
        return if (b > a) c in a..b else c in b..a
    }
}

percentage_edit_text.filters = arrayOf(Utilities.InputFilterMinMax(1, 100))

android:inputType="number"

@Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
        try {

            // Using @Zac's initial solution
            String lastVal = dest.toString().substring(0, dstart) + dest.toString().substring(dend);
            String newVal = lastVal.substring(0, dstart) + source.toString() + lastVal.substring(dstart);
            int input = Integer.parseInt(newVal);

            // To avoid deleting all numbers and avoid @Guerneen4's case
            if (input < min && lastVal.equals("")) return String.valueOf(min);

            // Normal min, max check
            if (isInRange(min, max, input)) {

                // To avoid more than two leading zeros to the left
                String lastDest = dest.toString();
                String checkStr = lastDest.replaceFirst("^0+(?!$)", "");
                if (checkStr.length() < lastDest.length()) return "";

                return null;
            }
        } catch (NumberFormatException ignored) {}
        return "";
    }

import android.text.InputFilter;
import android.text.Spanned;
import android.util.Log;

public class InputFilterMinMax implements InputFilter {
    
    private double min, max;
    
    public InputFilterMinMax(double min, double max) {
        this.min = min;
        this.max = max;
    }
    
    public InputFilterMinMax(String min, String max) {
        this.min = Double.parseDouble(min);
        this.max = Double.parseDouble(max);
    }
    
    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
        try {
            String lastVal = dest.toString();
            String newVal = lastVal.substring(0, dstart) + source.toString() + lastVal.substring(dstart);
            String strInput = source.toString();
            double input;
    
            if (strInput.equals("-") && (lastVal.length() == 0 || lastVal.equals("0"))) {
                return null;
            } else {
                input = Double.parseDouble(newVal);
            }
            
            if (isInRange(min, max, input)) {
                try {
                    if (lastVal.equals("0") && strInput.equals("0") && !strInput.equals(".")) {
                        Log.d("Checkpoint 1", "Can't put 0 again.");
                        return "";
                    } else if (strInput.equals("0")) {
                        if (dstart == 0) {
                            if (lastVal.substring(0, 1).equals("0")) {
                                Log.d("Checkpoint 2", "Can't put 0 again.");
                                return "";
                            } else if (!lastVal.substring(0, 1).equals(".")) {
                                Log.d("Checkpoint 3", "Can't put 0 in front of them.");
                                return "";
                            }
                        } else {
                            if (lastVal.substring(0, 1).equals("0") && dstart == 1) {
                                Log.d("Checkpoint 4", "Can't put 0 again.");
                                return "";
                            } else if (lastVal.substring(0, 1).equals("-")) {
                                if (Double.parseDouble(lastVal) == 0) {
                                    if (!lastVal.contains(".")) {
                                        Log.d("Checkpoint 5", "Can't put 0 here.");
                                        return "";
                                    } else {
                                        if (dstart <= lastVal.indexOf(".")) {
                                            Log.d("Checkpoint 6", "Can't put 0 here.");
                                            return "";
                                        }
                                    }
                                } else {
                                    if (lastVal.indexOf("0") == 1 && (dstart == 1 || dstart == 2)) {
                                        Log.d("Checkpoint 7", "Can't put 0 here.");
                                        return "";
                                    } else if ((!lastVal.substring(1, 2).equals("0") && !lastVal.substring(1, 2).equals(".")) && dstart == 1) {
                                        Log.d("Checkpoint 8", "Can't put 0 here.");
                                        return "";
                                    }
                                }
                            }
                        }
                    }
    
                    /**
                     * If last value is a negative that equals min value,
                     * and user tries to input a decimal separator at the
                     * very end, ignore it, because they won't be able to
                     * input anything except 0 after that anyway.
                     */
                    if (strInput.equals(".") && lastVal.substring(0,1).equals("-")
                            && Double.parseDouble(lastVal) == min && dstart == lastVal.length()) {
                        return "";
                    }
                } catch (Exception e) {
                }
                return null;
            }
        } catch (Exception ignored) {
            ignored.printStackTrace();
        }
        return "";
    }
    
    private boolean isInRange(double a, double b, double c) {
        return b > a ? c >= a && c <= b : c >= b && c <= a;
    }
}

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.text.Editable;
import android.text.InputFilter;
import android.text.TextWatcher;
import android.util.Log;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity implements TextWatcher {
    
    private EditText editInput;
    
    /**
     * Var to store old value in case the new value is either
     * out of range or invalid somehow. This was because I
     * needed a double value for my app, which means I can
     * enter a dot (.), and that could mean trouble if I decided
     * to delete that dot, e.g. assume the range is 0 - 100.
     * At first I enter 99.99, the InputFilter would allow that,
     * but what if somewhere down the line I decided to delete
     * the dot/decimal separator for "fun"?
     * Wow, now I have 9999.
     * Also, when I delete negative notation, it can produce
     * the same problem.
     */
    private String oldVal;
    
    private int min, max;
    
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        editInput = findViewById(R.id.edt_input);
        editInput.addTextChangedListener(this);
        
        min = -1600;
        max = 1500;
        
        editInput.setFilters(new InputFilter[]{new InputFilterMinMax(min, max)});
    }
    
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        oldVal = saveOldValue(s, start);
    }
    
    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
    
    }
    
    @Override
    public void afterTextChanged(Editable s) {
            validateChange(editInput, oldVal);
    }
    
    private String saveOldValue(CharSequence s, int start) {
        String oldVal = s.toString();
        if (oldVal.contains(".") && start == oldVal.indexOf(".") && start != oldVal.length() - 1) {
            return oldVal;
        } else if (oldVal.contains("-") && start == oldVal.indexOf("-") && start != oldVal.length() - 1) {
            return oldVal;
        }
        return null;
    }
    
    private void validateChange(EditText editText, String oldVal) {
        String strNewVal = editText.getText().toString().trim();
        boolean isChanged = false;

        if (strNewVal.indexOf("0") == 0 || (strNewVal.indexOf("-") == 0 && strNewVal.indexOf("0") == 1)) {
            if (strNewVal.contains(".")) {
                while ((strNewVal.indexOf("0") == 0 && strNewVal.indexOf(".") != 1 && strNewVal.length() > 2) ||
                        (strNewVal.indexOf("0") == 1 && strNewVal.indexOf(".") != 2 && strNewVal.length() > 3)) {
                    Log.d("Trimming 0", "");
                    strNewVal = strNewVal.replaceFirst("0", "");
                    isChanged = true;
                }
            } else if (!strNewVal.contains(".")) {
                while (strNewVal.indexOf("0") == 0 && strNewVal.length() > 1) {
                    Log.d("Trimming 0", "");
                    strNewVal = strNewVal.replaceFirst("0", "");
                    isChanged = true;
                }

                if (Double.parseDouble(strNewVal) > max) {
                    editText.setText(oldVal); // Or, you can set it to max values here.
                    return;
                }
            }
        }
        
        if (strNewVal.indexOf(".") == 0) {
            strNewVal = "0" + strNewVal;
            isChanged = true;
        }

        try {
            double newVal = Double.parseDouble(strNewVal);
            Log.d("NewVal: ", String.valueOf(newVal));
            if (newVal > max || newVal < min) {
                Log.d("Over Limit", "Let's Reset");
                editText.setText(oldVal); // Or, you can set it to min or max values here.
            }
        } catch (NumberFormatException e) {
            e.printStackTrace();
        }

        if (isChanged) {
            editText.setText(strNewVal);
        }
    }
}

private InputFilter inRange(int min, int max) {
    return new InputFilter(){
        @Override
        public CharSequence filter(CharSequence source, int start1, int end, Spanned dest, int dstart, int dend) {
            try {
                int input = Integer.parseInt(dest.toString() + source.toString());
                if (input < min || input > max){
                    return "";
                } else {
                    return null;
                }
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
    };
}

edittext1.setFilters(new InputFilter[]{inRange(3,60)});
edittext2.setFilters(new InputFilter[]{inRange(1,100)});

edittext1.setFilters(new InputFilter[]{filter1(somevalue),filter2(somevalue)});

android:maxLength="9"