一、创建基类 BaseFragment
package com.example.zhenghuajing.shoppingmall.base; import android.content.Context; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; /** * Created by zhenghuajing on 2019/3/23. * BaseFragment */ public abstract class BaseFragment extends Fragment { public Context mContext; @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); mContext = getActivity(); } @Nullable @Override public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) { return initView(); } @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); initData(); } /** * 初始化数据 */ public void initData() { } /** * 由子类实现,实现特有效果 * @return */ public abstract View initView(); }
二、首页HemoFragment继承基类
package com.example.zhenghuajing.shoppingmall.home.fragment; import android.graphics.Color; import android.util.Log; import android.view.Gravity; import android.view.View; import android.widget.TextView; import com.example.zhenghuajing.shoppingmall.base.BaseFragment; /** * Created by zhenghuajing on 2019/3/23. * 首页 */ public class HomeFragment extends BaseFragment { private static final String TAG = HomeFragment.class.getSimpleName(); private TextView textView; @Override public View initView() { Log.e(TAG, "主页被初始化"); textView = new TextView(mContext); textView.setGravity(Gravity.CENTER); textView.setTextSize(25); textView.setTextColor(Color.RED); return textView; } @Override public void initData() { super.initData(); Log.e(TAG, "主页被初始化了"); textView.setText("主页"); } }