（一）Activity和Fragment生命周期：通过回调函数观察生命周期

MainActivity.java源码：
 
  
 
  
package com.ctcc.fragmenttest.app;

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

public class MainActivity extends Activity {

    private static final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d(TAG,"onCreate");
        setContentView(R.layout.activity_main);
    }

    @Override
    public void onStart(){
        super.onStart();
        Log.d(TAG,"onStart");
    }

    @Override
    public void onResume(){
        super.onResume();
        Log.d(TAG,"onResume");
    }

    @Override
    public void onPause(){
        super.onPause();
        Log.d(TAG,"onPause");
    }

    @Override
    public void onStop(){
        super.onStop();
        Log.d(TAG,"onStop");
    }

    @Override
    public void onDestroy(){
        super.onDestroy();
        Log.d(TAG,"onDestroy");
    }
}
 
  
activity_main.xml源码：
 
  
 
  


    
    


 
  
Fragment1.java源码：
 
  
 
  
package com.ctcc.fragmenttest.app;

import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

/**
 * Created by Zouyiran on 2015/7/26.
 */
public class Fragment1 extends Fragment {

    private static final String TAG = "Fragment1";

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle saveInstanceState){
        Log.d(TAG, "onCreateView");
        return inflater.inflate(R.layout.fragment1, container, false);
    }

    @Override
    public void onAttach(Activity activity){
        super.onAttach(activity);
        Log.d(TAG,"onAttach");
    }

    @Override
    public void onCreate(Bundle saveInstanceState){
        super.onCreate(saveInstanceState);
        Log.d(TAG,"onCreate");
    }

    @Override
    public void onActivityCreated(Bundle saveInstanceState){
        super.onCreate(saveInstanceState);
        Log.d(TAG,"onActivityCreated");
    }

    @Override
    public void onStart(){
        super.onStart();
        Log.d(TAG,"onStart");
    }

    @Override
    public void onResume(){
        super.onResume();
        Log.d(TAG,"onResume");
    }

    @Override
    public void onPause(){
        super.onPause();
        Log.d(TAG,"onPause");
    }

    @Override
    public void onStop(){
        super.onStop();
        Log.d(TAG,"onStop");
    }

    @Override
    public void onDestroyView(){
        super.onDestroyView();
        Log.d(TAG,"onDestroyView");
    }

    @Override
    public void onDestroy(){
        super.onDestroy();
        Log.d(TAG,"onDestroy");
    }

    @Override
    public void onDetach(){
        super.onDetach();
        Log.d(TAG,"onDetach");
    }
}
 
  
fragment1.xml源码：
 
  
 
  


    


 
  
 
  
通过Andoird DDMS 的Logcat参看运行结果：