1.写个HelloWorld关于TextView的两种创建方式

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1.从xml布局文件来创建:

Package android_programmers_guide.HelloWorldText;import android.app.Activity;import android.os.Bundle;public class HelloWorldText extends Activity {/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle icicle) {super.onCreate(icicle);setContentView(R.layout.main);}}

main.xml中添加:

<TextViewandroid:layout_width="fill_parent"android:layout_height="wrap_content"android:text="Hello World, HelloWorldText" />

2.用代码创建:

package android_programmers_guide.HelloWorldText;import android.app.Activity;import android.os.Bundle;import android.widget.TextView;public class HelloWorldText extends Activity {/** Called when the activity is first created. */@Overridepublic void onCreate(Bundle icicle) {super.onCreate(icicle);/**Hello World JFD *//**BEGIN *//**Create TextView */TextView HelloWorldTextView = new TextView(this);/**Set text to Hello World */HelloWorldTextView.setText("Hello World!");/**Set ContentView to TextView */setContentView(HelloWorldTextView);/**END */}}

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