具体情况如图:
Fragment生命周期.png
布局:
fragment生命周期布局.gif
LifeOfFgActivity
public class LifeOfFgActivity extends AppCompatActivity { private static final String TAG = "LifeOfFgActivity"; @BindView(R.id.btn_left) Button mTvTitle1; @BindView(R.id.btn_right) Button mTvTitle2; @BindView(R.id.ll_life_root) LinearLayout mLlLifeRoot; @BindView(R.id.fl_life_root) FrameLayout mFlLifeRoot; private FragmentManager mFm; private FragmentTransaction mFt; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_life); Log.e(TAG, "onCreate: &&&&&&LifeOfFgActivity"); ButterKnife.bind(this); initFragment();//初始Fragment } @Override protected void onStart() { super.onStart(); Log.e(TAG, "onStart: &&&&&&LifeOfFgActivity"); } @Override protected void onResume() { super.onResume(); Log.e(TAG, "onResume: &&&&&&LifeOfFgActivity"); } @Override protected void onPause() { super.onPause(); Log.e(TAG, "onPause: &&&&&&LifeOfFgActivity"); } @Override protected void onStop() { super.onStop(); Log.e(TAG, "onStop: &&&&&&LifeOfFgActivity"); } @Override protected void onRestart() { super.onRestart(); Log.e(TAG, "onRestart: &&&&&&LifeOfFgActivity"); } @Override protected void onDestroy() { super.onDestroy(); Log.e(TAG, "onDestroy: &&&&&&LifeOfFgActivity"); } private void initFragment() { mFm = getFragmentManager();//1.获取FragmentManager mFt = mFm.beginTransaction();//2.fm开启事务 mFt.add(R.id.fl_life_root, new Fragment1()); //3.动态添加 mFt.commit();//4.提交事务 } @OnClick({R.id.btn_left, R.id.btn_right}) public void onViewClicked(View view) { mFt = mFm.beginTransaction();//2.fm开启事务 switch (view.getId()) { case R.id.btn_left: mFlLifeRoot.removeAllViews();//先清屏 mFt.replace(R.id.fl_life_root, new Fragment1()); //3.动态添加 break; case R.id.btn_right: mFlLifeRoot.removeAllViews();//先清屏 mFt.replace(R.id.fl_life_root, new Fragment2()); //3.动态添加 break; } mFt.commit();//4.提交事务 } }
Fragment1
public class Fragment1 extends Fragment { private static final String TAG = "Fragment1"; @Override public void onAttach(Context context) { super.onAttach(context); Log.e(TAG, "onAttach: ====Fragment1"); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.e(TAG, "onCreate: ====Fragment1"); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Log.e(TAG, "onCreateView:====Fragment1 "); return inflater.inflate(R.layout.fragment_fragment1, container, false); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.e(TAG, "onActivityCreated:====Fragment1 "); } @Override public void onStart() { super.onStart(); Log.e(TAG, "onStart: ====Fragment1"); } @Override public void onResume() { super.onResume(); Log.e(TAG, "onResume:====Fragment1 "); } @Override public void onPause() { super.onPause(); Log.e(TAG, "onPause:====Fragment1 "); } @Override public void onStop() { super.onStop(); Log.e(TAG, "onStop: ====Fragment1"); } @Override public void onDestroyView() { super.onDestroyView(); Log.e(TAG, "onDestroyView: ====Fragment1"); } @Override public void onDestroy() { super.onDestroy(); Log.e(TAG, "onDestroy:====Fragment1 "); } @Override public void onDetach() { super.onDetach(); Log.e(TAG, "onDetach:====Fragment1 "); } }
Fragment2
public class Fragment2 extends Fragment { private static final String TAG = "Fragment2"; @Override public void onAttach(Context context) { super.onAttach(context); Log.e(TAG, "onAttach: >>>>>Fragment2"); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Log.e(TAG, "onCreate: >>>>>Fragment2"); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Log.e(TAG, "onCreateView:>>>>>Fragment2 "); return inflater.inflate(R.layout.fragment_fragment2, container, false); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); Log.e(TAG, "onActivityCreated:>>>>>Fragment2 "); } @Override public void onStart() { super.onStart(); Log.e(TAG, "onStart: >>>>>Fragment2"); } @Override public void onResume() { super.onResume(); Log.e(TAG, "onResume:>>>>>Fragment2 "); } @Override public void onPause() { super.onPause(); Log.e(TAG, "onPause:>>>>>Fragment2 "); } @Override public void onStop() { super.onStop(); Log.e(TAG, "onStop: >>>>>Fragment2"); } @Override public void onDestroyView() { super.onDestroyView(); Log.e(TAG, "onDestroyView: >>>>>Fragment2"); } @Override public void onDestroy() { super.onDestroy(); Log.e(TAG, "onDestroy:>>>>>Fragment2 "); } @Override public void onDetach() { super.onDetach(); Log.e(TAG, "onDetach:>>>>>Fragment2 "); } }
作者:张风捷特烈
链接:https://www.jianshu.com/p/7f6903b794d5
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