搜索音乐文件

package com.example.com.scxh.mediaplayer;

import java.io.File;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.Toast;


public class MainActivity extends Activity implements Button.OnClickListener {
private String info = "搜索结果 :";
private String path;
private EditText meEditText;
private Button mbButton;
private ListView mlistView;
private String mInputKeyWord;
private ArrayList<String> mArrayList = new ArrayList<String>();
private ListAdapters listAdapters;


@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
meEditText = (EditText) findViewById(R.id.edittext);
mbButton = (Button) findViewById(R.id.button);


mlistView = (ListView) findViewById(R.id.list);


mbButton.setOnClickListener((OnClickListener) this);


listAdapters = new ListAdapters(this);
mlistView.setAdapter(listAdapters);
// listAdapters.setData(mArrayList);


mlistView.setOnItemClickListener(new OnItemClickListener() {


@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {


ListAdapters listAdapters;


listAdapters = (ListAdapters) parent.getAdapter();


String path = (String) listAdapters.getItem(position);
// 发送数据源
Intent intent = new Intent(MainActivity.this,
MidiaPlayer3.class);
intent.putExtra("key", path);
// 发送列表数据源
intent.putStringArrayListExtra("song", mArrayList);


startActivity(intent);


}


});
}


@Override
public void onClick(View v) {


mInputKeyWord = meEditText.getText().toString();
BrowserFile(Environment.getExternalStorageDirectory(), mInputKeyWord);
}


private void BrowserFile(File file, String KeyWord) {
if (KeyWord.equals("")) {
Toast.makeText(this, "如果输入框没有输入点击搜索按钮", Toast.LENGTH_SHORT).show();
} else {
ToSearchFiles(file);
listAdapters.setData(mArrayList);
}
}


private void ToSearchFiles(File files) {


File[] fileList = files.listFiles();


if (null != fileList) {
//遍历文件
for (File file : fileList) {
if (file.isDirectory()) {
ToSearchFiles(file);
} else {
try {
/* 是文件，进行比较，如果文件名称中包含输入搜索Key，则返回大于-1的值 */
if (file.getName().indexOf(mInputKeyWord) > -1) {
/* 获取符合条件文件的路径，进行累加 */


mArrayList.add(file.getAbsolutePath());
}
} catch (Exception e) {
Toast.makeText(this, "出错", Toast.LENGTH_SHORT).show();
}
}
}
}
}

}

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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >

        <EditText
            android:id="@+id/edittext"
            android:layout_width="200dp"
            android:layout_height="40dp"
            android:layout_marginLeft="40dp"
            android:layout_marginTop="10dp" />

        <Button
            android:id="@+id/button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="240dp"
            android:text="搜索"
            android:textSize="16dp" />
    </RelativeLayout>

    <ListView
        android:id="@+id/list"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp" />

</RelativeLayout>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >


    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >


        <EditText
            android:id="@+id/edittext"
            android:layout_width="200dp"
            android:layout_height="40dp"
            android:layout_marginLeft="40dp"
            android:layout_marginTop="10dp" />
        <Button
            android:id="@+id/button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="240dp"
            android:text="搜索"
            android:textSize="16dp" />
    </RelativeLayout>

    <ListView
        android:id="@+id/list"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="50dp" />

</RelativeLayout>