安卓加载远程图片并显示出来
//加载远程图片
public Bitmap getURLimage(String url) {
Bitmap bmp = null;
try {
URL myurl = new URL(url);
// 获得连接
HttpURLConnection conn = (HttpURLConnection) myurl.openConnection();
conn.setConnectTimeout(6000);//设置超时
conn.setDoInput(true);
conn.setUseCaches(false);//不缓存
conn.connect();
InputStream is = conn.getInputStream();//获得图片的数据流
bmp = BitmapFactory.decodeStream(is);
is.close();
} catch (Exception e) {
e.printStackTrace();
}
return bmp;
}调用
lv = (ListView) findViewById(R.id.listview);
img = findViewById(R.id.imageView);
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> arg0, View view, int position,long id) {
TextView tv1= view.findViewById(R.id.tv_1);
TextView tv2= findViewById(R.id.tv1);
Urlimg="http://***********************/0000000001/s/"+tv1.getText().toString(); // 缩小图片
Urlimg="http://***********************/0000000001/"+tv1.getText().toString(); // 原始图片
tv2.setText(Urlimg);
//新建线程加载图片信息,发送到消息队列中
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
Bitmap bmp = getURLimage(Urlimg);
Message msg = new Message();
msg.what = 1;
msg.obj = bmp;
System.out.println("000");
handle.sendMessage(msg);
}
}).start();
}
});//在消息队列中实现对控件的更改
private Handler handle = new Handler() {
public void handleMessage(Message msg) {
switch (msg.what) {
case 1:
System.out.println("111");
Bitmap bmp=(Bitmap)msg.obj;
img.setImageBitmap(bmp);
break;
}
};
};目前这段程序用在我的程序里了


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