Frgment生命周期

Fragment生命周期：
        与Actiivity类似，Fragment也存在如下状态
            运行状态：Fragment获得焦点，用户可见
                  1.添加Fragment
09-22 11:06:53.639 21950-21950/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onAttach---
09-22 11:06:53.644 21950-21950/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onCreate---
09-22 11:06:53.644 21950-21950/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onCreateView---
09-22 11:06:53.649 21950-21950/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onActivityCreated---
09-22 11:06:53.649 21950-21950/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onStart---
09-22 11:06:53.649 21950-21950/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onResume--- 运行状态
            状态状态：其他Activity位于前台，Fragment可见但是失去焦点
09-22 11:11:56.614 25118-25118/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onPause---
09-22 11:11:56.644 25118-25118/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---启动了窗口Activity---
            停止状态：该Fragment不可见，失去焦点
09-22 11:13:36.139 25118-25118/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onStop---
            销毁状态：该Fragment被完全删除，或该Fragment所在的Activity被结束
09-22 11:16:02.669 25118-25118/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onDestroyView---
09-22 11:16:02.670 25118-25118/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onDestroy---
09-22 11:16:02.670 25118-25118/testpermission.fragmentliftcycle D/Test-LifecycleFragment: ---onDetach---

Fragment代码：

package testpermission.fragmentliftcycle;

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

/**
 * Created by 75213 on 2016/9/22.
 */
public class LifecycleFragment extends Fragment {
   final String TAG = "Test-LifecycleFragment";

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

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

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        Log.d(TAG , "---onCreateView---");
        TextView tv = new TextView(getActivity());
        tv.setGravity(Gravity.CENTER_HORIZONTAL);
        tv.setText("测试Fragment生命周期");
        return tv;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        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---");
    }
}


MainActivity代码

package testpermission.fragmentliftcycle;

import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;

public class MainActivity extends AppCompatActivity {
    private Button bn , bn2 ;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        bn = (Button)findViewById(R.id.bn);
        bn2 = (Button)findViewById(R.id.bn2);
        bn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                LifecycleFragment fragment = new LifecycleFragment();
                getFragmentManager().beginTransaction().replace(R.id.fragment , fragment).commit();
            }
        });
        bn2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(MainActivity.this , WindowActivity.class);
                startActivity(intent);
            }
        });
    }
}