android-知晓当前是哪一个活动

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<span style="font-size:18px;">package com.wang.startmethod;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
//知晓当前是哪一个活动
public class BaseActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		<strong>Log.d("BaseActivity===", getClass().getSimpleName());</strong>
	}

}</span>

ThirdActivity.java

package com.wang.startmethod;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;

public class ThirdActivity extends <strong>BaseActivity</strong>{
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		Log.d("ThirdActivity===", this.toString());
		Log.d("ThirdActivity===", "Task id is "+getTaskId());
		requestWindowFeature(Window.FEATURE_NO_TITLE);
		setContentView(R.layout.third_layout);
		
		
		
	}
	


}

这样让我们的类不继承Activity，而是继承BaseActivity，这样在调用时就可以通过getClass.getSimpleName()，知道我们调用的哪个方法了。开发中就不用挨个去找了。