android editview组件

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androidmanifest.xml

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.yarin.android.Examples_04_06"      android:versionCode="1"      android:versionName="1.0">    <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".Activity01"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application>    <uses-sdk android:minSdkVersion="5" /></manifest>

main.xml

<?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:id="@+id/TextView01"    android:layout_width="fill_parent"     android:layout_height="wrap_content"     />  <EditText  android:id="@+id/EditText01"  android:layout_width="fill_parent"  android:layout_height="wrap_content"  android:textSize="18sp"  android:layout_x="29px"  android:layout_y="33px"  /></LinearLayout>

java

package com.yarin.android.Examples_04_06;import android.app.Activity;import android.os.Bundle;import android.view.KeyEvent;import android.view.View;import android.widget.EditText;import android.widget.TextView;public class Activity01 extends Activity{private TextViewm_TextView;private EditTextm_EditText;/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState);setContentView(R.layout.main);m_TextView = (TextView) findViewById(R.id.TextView01);m_EditText = (EditText) findViewById(R.id.EditText01);m_TextView.setTextSize(20);/** * 设置当m_EditText中为空时提示的内容  * 在XML中同样可以实现：android:hint="请输入账号" */m_EditText.setHint("请输入账号");/* 设置EditText事件监听 */m_EditText.setOnKeyListener(new EditText.OnKeyListener() {@Overridepublic boolean onKey(View arg0, int arg1, KeyEvent arg2){// TODO Auto-generated method stub// 得到文字，将其显示到TextView中m_TextView.setText("文本框中内容是：" + m_EditText.getText().toString());return false;}});}}