为回答详情添加评论(增加部分UI

app/src/main/java/com/gh/base/fragment/BaseDialogWrapperFragment.java

@@ -0,0 +1,46 @@
+package com.gh.base.fragment;
+
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.gh.gamecenter.R;
+
+/**
+ * Wrap another fragment with dialog fragment.
+ */
+public class BaseDialogWrapperFragment extends BaseDialogFragment {
+
+    private Fragment mFragmentToWrap;
+
+    public static BaseDialogWrapperFragment getInstance(Fragment fragmentToWrap) {
+        BaseDialogWrapperFragment fragment = new BaseDialogWrapperFragment();
+        fragment.mFragmentToWrap = fragmentToWrap;
+        return fragment;
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_dialog_wrapper, null);
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        getChildFragmentManager().beginTransaction().replace(R.id.fragment_placeholder, mFragmentToWrap).commitNowAllowingStateLoss();
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        getDialog().getWindow().setGravity(Gravity.BOTTOM);
+        getDialog().getWindow().setLayout(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
+    }
+}