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标题:
Android ImageView如何加载网络图片资源
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作者:
jekeyhui99
时间:
2015-11-20 18:04
标题:
Android ImageView如何加载网络图片资源
Java代码
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package com.android.antking.imageview;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;
public class MainActivity extends Activity {
//定义一个图片显示控件
private ImageView imageView;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//图片资源
String url = "http://s16.sinaimg.cn/orignal/89429f6dhb99b4903ebcf&690";
//得到可用的图片
Bitmap bitmap = getHttpBitmap(url);
imageView = (ImageView)this.findViewById(R.id.imageViewId);
//显示
imageView.setImageBitmap(bitmap);
}
/**
* 获取网落图片资源
* @param url
* @return
*/
public static Bitmap getHttpBitmap(String url){
URL myFileURL;
Bitmap bitmap=null;
try{
myFileURL = new URL(url);
//获得连接
HttpURLConnection conn=(HttpURLConnection)myFileURL.openConnection();
//设置超时时间为6000毫秒,conn.setConnectionTiem(0);表示没有时间限制
conn.setConnectTimeout(6000);
//连接设置获得数据流
conn.setDoInput(true);
//不使用缓存
conn.setUseCaches(false);
//这句可有可无,没有影响
//conn.connect();
//得到数据流
InputStream is = conn.getInputStream();
//解析得到图片
bitmap = BitmapFactory.decodeStream(is);
//关闭数据流
is.close();
}catch(Exception e){
e.printStackTrace();
}
return bitmap;
}
}
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