android的文件操作1

package org.lxh.file; import org.lxh.service.FileService; import android.app.Activity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; public class FileActivity extends Activity { private FileService service; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); service=new FileService(this); Button button=(Button)findViewById(R.id.button); button.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { EditText filename=(EditText)findViewById(R.id.filename); EditText content=(EditText)findViewById(R.id.content); try { service.saveFile(filename.getText().toString(), content.getText().toString()); Toast.makeText(FileActivity.this, R.string.success, 1).show(); } catch (Exception e) { Toast.makeText(FileActivity.this, R.string.failure, 1).show(); Log.e("FileActivity", e.getMessage()); } } }); } }