Android游戏开发系统控件-EditText

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
android:id="@+id/tv"
/>
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="提示消息"
android:id="@+id/et"
/>
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="获取EditText内容！"
android:id="@+id/btn"
/>

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<resources>

<string name="hello">Hello World,EditTextProject</string>
<string name="app_name">EditTextProject</string>

</resources>

package com.editText;

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

public class EditTextProject extends Activity implements OnClickListener{
private EditText et;//创建一个文本编辑的对象
private Button btn;
private TextView tv;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
et = (EditText)findViewById(R.id.et);//实例化文本编辑
btn = (Button)findViewById(R.id.btn);
btn.setOnClickListener(this);//注册监听器
tv = (TextView)findViewById(R.id.tv);

}

public void onClick(View v) {
if(v==btn){
//获取EditText中的文本内容
String str = et.getText().toString();
//让TextView将获取到的EditText内容str显示出来
tv.setText(str);
}

}

}