Fragment生命周期

官方文档中有详细的文字说明，不过最好还是实践下，熟悉过程。http://developer.android.com/guide/components/fragments.html

一、Activity的生命周期图：

二、Fragment生命周期图

三、对比图

四、测试代码：

 package com.goso.testapp;

 import android.app.Activity;
 import android.app.ListFragment;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;

 /**
  * Demonstration of using ListFragment to show a list of items
  * from a canned array.
  */
 public class FragmentListArray extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         Log.e("HJJ", "Activity &&&& onCreate...");
         // Create the list fragment and add it as our sole content.
         if (getFragmentManager().findFragmentById(android.R.id.content) == null) {
             ArrayListFragment list = new ArrayListFragment();
             getFragmentManager().beginTransaction().add(android.R.id.content, list).commit();
         }
     }

     @Override
     protected void onStart() {
         // TODO Auto-generated method stub
         super.onStart();
         Log.e("HJJ", "Activity &&&& onStart...");
     }

     @Override
     protected void onResume() {
         // TODO Auto-generated method stub
         super.onResume();
         Log.e("HJJ", "Activity &&&& onResume...");
     }

     @Override
     protected void onStop() {
         // TODO Auto-generated method stub
         super.onStop();
         Log.e("HJJ", "Activity &&&& onStop...");
     }

     @Override
     protected void onPause() {
         // TODO Auto-generated method stub
         super.onPause();
         Log.e("HJJ", "Activity &&&& onPause...");
     }

     @Override
     protected void onDestroy() {
         // TODO Auto-generated method stub
         super.onDestroy();
         Log.e("HJJ", "Activity &&&& onDestroy...");
     }

     public static class ArrayListFragment extends ListFragment {

         @Override
         public void onAttach(Activity activity) {
             // TODO Auto-generated method stub
             Log.e("HJJ", "ArrayListFragment **** onAttach...");
             super.onAttach(activity);
         }

         @Override
         public void onCreate(Bundle savedInstanceState) {
             // TODO Auto-generated method stub
             Log.e("HJJ", "ArrayListFragment **** onCreate...");
             super.onCreate(savedInstanceState);
         }

         @Override
         public View onCreateView(LayoutInflater inflater, ViewGroup container,
                 Bundle savedInstanceState) {
             // TODO Auto-generated method stub
             Log.e("HJJ", "ArrayListFragment **** onCreateView...");
             return super.onCreateView(inflater, container, savedInstanceState);
         }

         @Override
         public void onActivityCreated(Bundle savedInstanceState) {
             super.onActivityCreated(savedInstanceState);
             Log.e("HJJ", "ArrayListFragment **** onActivityCreated...");
             String[] array = new String[]{"C++", "JAVA", "PYTHON"};
             setListAdapter(new ArrayAdapter<String>(getActivity(),
                     android.R.layout.simple_list_item_1, array));
         }

         @Override
         public void onStart() {
             // TODO Auto-generated method stub
             Log.e("HJJ", "ArrayListFragment **** onStart...");
             super.onStart();
         }

         @Override
         public void onResume() {
             Log.e("HJJ", "ArrayListFragment **** onResume...");
             // TODO Auto-generated method stub
             super.onResume();
         }

         @Override
         public void onPause() {
             Log.e("HJJ", "ArrayListFragment **** onPause...");
             // TODO Auto-generated method stub
             super.onPause();
         }

         @Override
         public void onStop() {
             Log.e("HJJ", "ArrayListFragment **** onStop...");
             // TODO Auto-generated method stub
             super.onStop();
         }

         @Override
         public void onDestroyView() {
             Log.e("HJJ", "ArrayListFragment **** onDestroyView...");
             // TODO Auto-generated method stub
             super.onDestroyView();
         }

         @Override
         public void onDestroy() {
             // TODO Auto-generated method stub
             Log.e("HJJ", "ArrayListFragment **** onDestroy...");
             super.onDestroy();
         }

         @Override
         public void onDetach() {
             Log.e("HJJ", "ArrayListFragment **** onDetach...");
             // TODO Auto-generated method stub
             super.onDetach();
         }

         @Override
         public void onListItemClick(ListView l, View v, int position, long id) {
             Log.i("FragmentList", "Item clicked: " + id);
         }
     }
 }

五、结果

 onCreate过程
 01-22 15:30:28.091: E/HJJ(10315): Activity &&&& onCreate...
 01-22 15:30:28.091: E/HJJ(10315): ArrayListFragment **** onAttach...
 01-22 15:30:28.091: E/HJJ(10315): ArrayListFragment **** onCreate...
 01-22 15:30:28.115: E/HJJ(10315): ArrayListFragment **** onCreateView...
 01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onActivityCreated...

 onStart过程
 01-22 15:30:28.123: E/HJJ(10315): Activity &&&& onStart...
 01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onStart...

 onResume过程
 01-22 15:30:28.123: E/HJJ(10315): Activity &&&& onResume...
 01-22 15:30:28.123: E/HJJ(10315): ArrayListFragment **** onResume...

 onPause过程
 01-22 15:31:26.748: E/HJJ(10315): ArrayListFragment **** onPause...
 01-22 15:31:26.748: E/HJJ(10315): Activity &&&& onPause...

 onStop过程
 01-22 15:31:27.638: E/HJJ(10315): ArrayListFragment **** onStop...
 01-22 15:31:27.638: E/HJJ(10315): Activity &&&& onStop...

 onStart过程
 01-22 15:31:57.537: E/HJJ(10315): Activity &&&& onStart...
 01-22 15:31:57.537: E/HJJ(10315): ArrayListFragment **** onStart...

 onResume过程
 01-22 15:31:57.537: E/HJJ(10315): Activity &&&& onResume...
 01-22 15:31:57.537: E/HJJ(10315): ArrayListFragment **** onResume...

 onPause过程
 01-22 15:32:47.412: E/HJJ(10315): ArrayListFragment **** onPause...
 01-22 15:32:47.412: E/HJJ(10315): Activity &&&& onPause...

 onStop过程
 01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onStop...
 01-22 15:32:47.865: E/HJJ(10315): Activity &&&& onStop...

 onDestroy过程
 01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onDestroyView...
 01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onDestroy...
 01-22 15:32:47.865: E/HJJ(10315): ArrayListFragment **** onDetach...
 01-22 15:32:47.865: E/HJJ(10315): Activity &&&& onDestroy...