package com.lxt008; import com.lxt008.R; import android.app.Activity; import android.os.Bundle; import android.util.Log; public class HelloAndroidActivity extends Activity { /* 定义TAG标签,这样可以很好的区分打印出来的log */ private static final String TAG = "HelloAndroid"; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); /* 打印出不同的log信息 */ Log.v(TAG, "VERBOSE"); Log.d(TAG, "DEBUG"); Log.i(TAG, "INFO"); Log.w(TAG, "WARN"); Log.e(TAG, "ERROR"); /* 设置Activity要显示的布局为(R.layout.main) */ setContentView(R.layout.main); } }