package com.bwie.loadimage;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import com.bwie.loadimage.bean.MenuInfo;
import com.bwie.loadimage.utils.StreamTools;
import com.google.gson.Gson;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLEncoder;
import java.util.List;
public class MainActivity
extends AppCompatActivity {
private ListView
listview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.
activity_main);
listview = (ListView) findViewById(R.id.
listview);
getMenuInfo(
"http://apis.juhe.cn/cook/query.php?key=85ccc6561e8247986f378b20ef34589a&menu=" + URLEncoder.
encode(
"秘制红烧肉"));
}
public void getMenuInfo(String path) {
new AsyncTask<String, Void, String>() {
@Override
protected String doInBackground(String... strings) {
try {
HttpURLConnection connection = (HttpURLConnection)
new URL(strings[
0]).openConnection();
connection.setRequestMethod(
"GET");
connection.setConnectTimeout(
5 *
1000);
connection.setReadTimeout(
5 *
1000);
if (connection.getResponseCode() == HttpURLConnection.
HTTP_OK) {
InputStream is = connection.getInputStream();
String json = StreamTools.
getString(is);
return json;
}
}
catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
if (s !=
null) {
Gson gson =
new Gson();
MenuInfo menuInfo = gson.fromJson(s, MenuInfo.
class);
List<MenuInfo.ResultBean.DataBean.StepsBean> steps = menuInfo.getResult().getData().get(
0).getSteps();
listview.setAdapter(
new Myadapter(steps));
}
}
}.execute(path);
}
public void loadImage(String imagePath,
final ImageView imageview) {
new AsyncTask<String, Void, Bitmap>() {
@Override
protected Bitmap doInBackground(String... strings) {
try {
HttpURLConnection connection = (HttpURLConnection)
new URL(strings[
0]).openConnection();
connection.setRequestMethod(
"GET");
connection.setConnectTimeout(
5 *
1000);
connection.setReadTimeout(
5 *
1000);
if (connection.getResponseCode() == HttpURLConnection.
HTTP_OK) {
InputStream is = connection.getInputStream();
Bitmap bitmap = BitmapFactory.
decodeStream(is);
return bitmap;
}
}
catch (Exception e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(Bitmap bitmap) {
super.onPostExecute(bitmap);
if (bitmap !=
null) {
imageview.setImageBitmap(bitmap);
}
else {
imageview.setImageResource(R.mipmap.
ic_launcher);
}
}
}.execute(imagePath);
}
class Myadapter
extends BaseAdapter {
public List<MenuInfo.ResultBean.DataBean.StepsBean>
steps;
public Myadapter(List<MenuInfo.ResultBean.DataBean.StepsBean> steps) {
this.
steps = steps;
}
@Override
public int getCount() {
return steps.size();
}
@Override
public Object getItem(
int i) {
return steps.get(i);
}
@Override
public long getItemId(
int i) {
return i;
}
@Override
public View getView(
int i, View view, ViewGroup viewGroup) {
if (view ==
null) {
view = View.
inflate(getApplicationContext(), R.layout.
item,
null);
}
ImageView image = (ImageView) view.findViewById(R.id.
image);
TextView tv = (TextView) view.findViewById(R.id.
tv);
loadImage(
steps.get(i).getImg(), image);
tv.setText(
steps.get(i).getStep());
return view;
}
}
}
