AlterDialog

package com.bwie.sixgroup.humbert;

import android.app.Activity;
import android.os.Bundle;
import android.support.v7.app.AlertDialog;
import android.text.TextUtils;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

import bean.User;

/**
 * Created by acer on 2016/7/13.
 */
public class TiActivity extends Activity{

    private TextView ti;
    private AlertDialog alertDialog;
    private ListView listview;
    private String trim;
    private String trim1;
    private MyAdapter myAdapter;
    private ImageView f;
    private List<User> list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_ti);

        listview = (ListView)findViewById(R.id.listview);


        list = new ArrayList<User>();

        f = (ImageView)findViewById(R.id.f);
        f.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
        ti = (TextView)findViewById(R.id.ti);
        ti.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
            showDialog();
            }
        });

    }
    public void showDialog(){
        AlertDialog.Builder builder = new AlertDialog.Builder(TiActivity.this);
        View view = View.inflate(TiActivity.this, R.layout.dialog,null);
        final EditText dialog_wen = (EditText)view.findViewById(R.id.dialog_wen);
        final EditText dialog_bu = (EditText)view.findViewById(R.id.dialog_bu);
        Button btn_confrim = (Button)view.findViewById(R.id.btn_confrim);
        Button btn_Cancel = (Button)view.findViewById(R.id.btn_Cancel);
        btn_Cancel.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
            alertDialog.dismiss();
            }
        });

       btn_confrim.setOnClickListener(new View.OnClickListener() {

           private User user;

           @Override
           public void onClick(View v) {
               trim1 = dialog_wen.getText().toString().trim();
               trim = dialog_bu.getText().toString().trim();
               if(!TextUtils.isEmpty(trim) && !TextUtils.isEmpty(trim1)){
                       list.add(new User(trim,trim1));
                       alertDialog.dismiss();
                       Toast.makeText(TiActivity.this,"您还没有提问",Toast.LENGTH_SHORT).show();
                   }
                       qwe();
                       alertDialog.dismiss();

           }
       });
        builder.setView(view);
        alertDialog = builder.create();
        alertDialog.show();

    }
    public void qwe(){
        if(myAdapter == null){
            myAdapter = new MyAdapter();
            listview.setAdapter(myAdapter);
        }else{
            myAdapter.notifyDataSetChanged();
        }
    }

    class MyAdapter extends BaseAdapter{

        @Override
        public int getCount() {
            return list.size();
        }

        @Override
        public Object getItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            convertView = View.inflate(TiActivity.this, R.layout.tilistitem,null);
            TextView ti_ti = (TextView)convertView.findViewById(R.id.ti_ti);
            TextView ti_tv = (TextView) convertView.findViewById(R.id.ti_tv);

            ti_ti.setText(list.get(position).getNames());
            ti_tv.setText(list.get(position).getName());

            return convertView;
        }
    }
}