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

 

Test code:

 

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);  
        }  
    }  
}  

 

 

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...