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  • 团队博客

    图片在客户端的预览出了问题,我觉得是图片地址的获取出了问题。

    看了些博客,简单敲了些代码针对想法做了个测试。

    弄了个小小的个人模板:

    import android.graphics.Bitmap;
    import android.graphics.BitmapFactory;
    import android.os.Handler;
    import android.os.Message;
    import android.support.v7.app.AppCompatActivity;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.ImageView;
    import com.xiaoyu.schoolelive.R;
    import java.io.InputStream;
    import java.net.HttpURLConnection;
    import java.net.URL;
    public class testActivity extends AppCompatActivity {
        private String str;
        private MyHandler handler1;
        class MyHandler extends Handler{
            @Override
            public void handleMessage(Message msg) {
                ImageView imageView = (ImageView)findViewById(R.id.image);
                imageView.setImageBitmap((Bitmap)msg.obj);
            }
        }
    
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_test2);
            handler1 = new MyHandler();
            Button button = (Button) findViewById(R.id.test);
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    new Thread(new Runnable() {
                        @Override
                        public void run() {
    
                            try {
                                String path = "这里是图片地址";
                                URL url = new URL(path);
                                HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                                conn.setRequestMethod("GET");
                                conn.setConnectTimeout(8000);
                                conn.setReadTimeout(8000);
                                conn.connect();
                                //如果响应码为200,说明请求成功
                                if(conn.getResponseCode() == 200)
                                {
                                    InputStream is = conn.getInputStream();
                                    Bitmap bm = BitmapFactory.decodeStream(is);
                                    Message msg = new Message();
                                    msg.obj = bm;
                                    handler1.sendMessage(msg);
                                    handler1.sendMessage(msg);
                                }
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                    }).start();
                }
            });
        }
    }
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  • 原文地址:https://www.cnblogs.com/hfy717/p/14757566.html
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