ADD file via upload

BaseFragment.java

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+package com.example.fragment;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+
+
+
+public abstract  class BaseFragment extends Fragment {
+
+    public FragmentActivity mActivity;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mActivity = getActivity();
+
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        View view =initView();
+        return view;
+    }
+
+    //view的初始化
+    protected abstract View initView();
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        initData();
+        initListener();
+    }
+    /**
+     * 初始化数据
+     */
+    public abstract void initData();
+    /**
+     * 初始化监听器
+     */
+    void initListener(){};
+
+}