package androidstudy.example;
import java.io.File;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class search extends Activity {
private Button ok;
private TextView tv;
private EditText et;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ok = (Button) findViewById(R.id.button1);
tv = (TextView) findViewById(R.id.textView1);
et = (EditText) findViewById(R.id.editText1);
ok.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
String key = et.getText().toString();
if (key.equalsIgnoreCase("")) {
Toast.makeText(search.this, "xxx", Toast.LENGTH_SHORT)
.show();
} else {
tv.setText(searchFile(key));
}
}
});
}
private String searchFile(String key) {
String result = "";
File[] files = new File("/").listFiles();
for (File f : files) {
if (f.getName().indexOf(key) >= 0) {
result += f.getPath() + "\n";
}
}
if (result.equals(""))
result = "no";
return result;
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="key word"
/>
<EditText
android:id="@+id/editText1"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
/>
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"
/>
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
</LinearLayout>
