Android开发笔记之:Log图文详解(Log.v,Log.d,Log.i,Log.w,Log.e)

package com.android.test;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
public class LogDemo extends Activity {

 private static final String ACTIVITY_TAG="LogDemo";
 private Button bt;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //通过findViewById找到Button资源
        bt = (Button)findViewById(R.id.bt);
        //增加事件响应
        bt.setOnClickListener(new Button.OnClickListener(){
    @Override
   public void onClick(View v) {
    Log.v(LogDemo.ACTIVITY_TAG, "This is Verbose.");
    Log.d(LogDemo.ACTIVITY_TAG, "This is Debug.");
    Log.i(LogDemo.ACTIVITY_TAG, "This is Information");
    Log.w(LogDemo.ACTIVITY_TAG, "This is Warnning.");
    Log.e(LogDemo.ACTIVITY_TAG, "This is Error.");
   }

        });
    }

}