Android开发教程笔记完全版

package zyf.android.test.hello; import android.app.Activity; import android.os.Bundle; import android.widget.TextView; public class Hello extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super .onCreate(savedInstanceState); // setContentView(R.layout.main); TextView tv = new TextView(this); tv.setText("这是一个测试Android的helloWorld"); setContentView(tv); } }