Android练习之Search Files

code

package com.example.flexd3;

import java.io.File;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {
    
    private Button bt2;
    private EditText et1;
    private TextView tv1;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bt2 = (Button)findViewById(R.id.bt2);
        tv1 = (TextView)findViewById(R.id.tv1);
        et1 = (EditText)findViewById(R.id.et1);
        bt2.setOnClickListener(listener);
    }
    
    android.view.View.OnClickListener listener = new OnClickListener() {
        @Override
        public void onClick(View v) {
            if(!"".equals(et1.getText().toString())){
                tv1.setText(search(et1.getText().toString()));
            }
        }
    };
    
    /**
     * Search
     * @param keyWords
     * @return
     */
    private String search(String keyWords){
        String result = "NONE";
        File[] files = new File("/").listFiles();
        for(File file:files){
            if(file.getName().indexOf(keyWords)>=0){
                result = file.getPath();
            }
        }
        return result;
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

}