android 3.0sdk 以后力推DialogFragment 代替 Dialog

1.

package com.example.gsc.popwindowdemo;import android.app.Dialog;import android.os.Bundle;import android.support.annotation.NonNull;import android.support.annotation.Nullable;import android.support.v4.app.DialogFragment;import android.view.Gravity;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.view.Window;import android.view.WindowManager;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.ListView;/** * Created by qundui on 2017/6/11. */public class Mydiolagfremnt extends DialogFragment {    @Nullable    @Override    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {        getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);        ListView lv=new ListView(getContext());        String[] mdatas={"a","b","c"};        lv.setAdapter(new ArrayAdapter<String>(getContext(),android.R.layout.simple_list_item_1,android.R.id.text1,mdatas));        lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                //popupWindow.dismiss();                Mydiolagfremnt.this.dismiss();            }        });        return lv;    }    @Override    public void onResume() {        WindowManager.LayoutParams a=new WindowManager.LayoutParams();//  必须放在setcontentview ( 创建以后)  之后否则无效        a.width=200;        a.height=600;        getDialog().getWindow().setAttributes(a);        getDialog().getWindow().setGravity(Gravity.BOTTOM);//显示位置必须在设置宽高以后否则无效        super.onResume();    }    @NonNull    @Override    public Dialog onCreateDialog(Bundle savedInstanceState) {        return super.onCreateDialog(savedInstanceState);    }    @Override    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {        super.onViewCreated(view, savedInstanceState);    }
}
2. act中想使用fragment  一样玩 dialog
Mydiolagfremnt m=new Mydiolagfremnt();m.show(getSupportFragmentManager(),"ass");