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  • Android EditText文本内容变化监听方法

    package com.google;
    
    import android.app.Activity;
    import android.os.Bundle;
    import android.text.Editable;
    import android.text.TextWatcher;
    import android.widget.EditText;
    
    public class ActMain extends Activity {
    
    private EditText et_search;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    
    et_search = (EditText) findViewById(R.id.et_search);
    
    et_search.addTextChangedListener(textWatcher);
    }
    
    private TextWatcher textWatcher = new TextWatcher() {
    
    @Override
    public void onTextChanged(CharSequence s, int start, int before,
    int count) {
    //  
    System.out.println("-1-onTextChanged-->"
    + et_search.getText().toString() + "<--");
    }
    
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count,
    int after) {
    //  
    System.out.println("-2-beforeTextChanged-->"
    + et_search.getText().toString() + "<--");
    
    }
    
    @Override
    public void afterTextChanged(Editable s) {
    //  
    System.out.println("-3-afterTextChanged-->"
    + et_search.getText().toString() + "<--");
    
    }
    };
    }
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  • 原文地址:https://www.cnblogs.com/zhujiabin/p/5916943.html
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