Android开发限制EditText和AppCompatEditText输入长度的方法

 package cn.yhsh.keyeventdemo;

    
  
    
 import android.text.InputFilter;
    
 import android.text.Spanned;
    
  
    
 /** * @author xiayiye
    
  * @date 2022/4/2 13:23
    
  */
    
  
    
  
    
 public class SearchKeyWorldLengthFilter implements InputFilter {
    
  
    
     private final int mMax;
    
  
    
     public SearchKeyWorldLengthFilter(int max) {
    
     mMax = max;
    
     }
    
  
    
     @Override
    
     public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
    
     int keep = mMax