Android的远程图像获取的问题？图像、问题、Android

由网友(salted fish（咸鱼）)分享简介：我用下面的code，以显示与下一个和previous按钮遥感图像。点击next和previous按钮两次或三次不显示图片下一张图片。和DisplayLiveImage的位图是空。i am using following code to display remote image with next and prev...

我用下面的code，以显示与下一个和previous按钮遥感图像。点击next和previous按钮两次或三次不显示图片下一张图片。和DisplayLiveImage的位图是空。

i am using following code to display remote image with next and previous buttons. clicking on next and previous buttons two or three times it does not show image next image. and bitmap of DisplayLiveImage is null.

任何一个可以检查这个缓冲区的问题？或连接？

can any one check is this a buffer problem? or connection?

ImageView img;
     int CurrentImageIndex;


    protected void onCreate(Bundle savedInstanceState)
    {  

        super.onCreate(savedInstanceState);
        setContentView(R.layout.imageviwer);
        setTitle("some text");



        myRemoteImages = new String[6];
        myRemoteImages[0]="https://p.xsw88.cn/allimgs/daicuo/20230904/7719.png.jpg";
        myRemoteImages[1]="https://p.xsw88.cn/allimgs/daicuo/20230904/7720.png.jpg";
        myRemoteImages[2]="https://p.xsw88.cn/allimgs/daicuo/20230904/7721.png.jpg";
        myRemoteImages[3]="https://p.xsw88.cn/allimgs/daicuo/20230904/7722.png.jpg";
        myRemoteImages[4]="https://p.xsw88.cn/allimgs/daicuo/20230904/7723.png.jpg";
        myRemoteImages[5]="https://p.xsw88.cn/allimgs/daicuo/20230904/7724.png.jpg";


        CurrentImageIndex= 0;

        img= (ImageView)findViewById(R.id.myImageView);
        DisplayLiveImage(CurrentImageIndex);

        Button previous = (Button)findViewById(R.id.btnPrevious);
        Button next = (Button)findViewById(R.id.btnNext);


        next.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {

                ShowNext();

            }

        });

        previous.setOnClickListener(new View.OnClickListener() {
            public void onClick(View view) {

                ShowPrevious();

            }

        });

    }


    public void DisplayLiveImage(int val)
    {

                     try {  

                             URL aURL = new URL(myRemoteImages[val]);  
                             URLConnection conn = aURL.openConnection();  
                             conn.connect();  
                             InputStream is = conn.getInputStream();  

                             BufferedInputStream bis = new BufferedInputStream(is);  

                             Bitmap bm = BitmapFactory.decodeStream(bis);  
                             bis.close();  
                             is.close();  

                            // i.setImageBitmap(bm); 
                             img.setImageBitmap(bm);
                        } catch (IOException e) {  

                        }  


                  //   i.setScaleType(ImageView.ScaleType.FIT_CENTER);  

                   //  i.setLayoutParams(new Gallery.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));  
                    // return i;


    }






    public void ShowNext()
    {
        if(CurrentImageIndex < myRemoteImages.length )
        {
            CurrentImageIndex  = CurrentImageIndex +1 ;
            DisplayLiveImage(CurrentImageIndex);
        }

    }


    public void ShowPrevious()
    {

        if(CurrentImageIndex > 0 )
        {
            CurrentImageIndex  = CurrentImageIndex -1 ;
            DisplayLiveImage(CurrentImageIndex);
        }



    }

任何帮助将appriciated。

any help would be appriciated.

Android的远程图像获取的问题？图像、问题、Android

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