毕加索在Android的下载倍数图像 [英] Downloading multiples images from Picasso in Android

问题描述

我使用的是毕加索库从网址下载图像。这是我对毕加索第一次尝试

方案：我想从服务器上下载一些图片，并将它们存储到文件中。我知道如何保存到文件和检索。当我跑了低于code，我碰巧看到，我只获得最后一张图像。它看起来像毕加索平行运行。我通过显示敬酒消息，检查了它。反正是有解决这个问题？

问题：我只得到最后的URL图像。

下面是我的code

 静态诠释计数= 0;@覆盖
保护无效的onCreate（捆绑savedInstanceState）{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.activity_main）;    的for（int i = 0; I＆LT; url.length;我++）
    {        // URL是String数组，其中有2个网址。
        ++计数; //递增1计数
        Picasso.with（本）.load（URL [I]）
        .into（新目标（）{            @覆盖
            在prepareLoad（绘制对象为arg0）公共无效{
                // TODO自动生成方法存根            }            @覆盖
            公共无效onBitmapLoaded（位图将arg0，ARG1 LoadedFrom）{
                // TODO自动生成方法存根
                将arg0 = Bitmap.createScaledBitmap（为arg0，150，150，TRUE）;
                文件路径= saveFile的（为arg0）; //我只是调用这个函数来检查onBitmapLoaded`多少次`调用。它被称为只有一次......！
            }            @覆盖
            公共无效onBitmapFailed（绘制对象为arg0）{
                // TODO自动生成方法存根            }
        }）;
    }
}公共字符串了saveFile（位图BM）
{   Toast.makeText（getApplicationContext（），+计数，100）.show（）; //显示计数的值，它始终显示为** 2 **。
   返回;
}
 

解决方案

试试这个办法，希望这将帮助你解决你的问题。

 静态诠释计数= 0;@覆盖
保护无效的onCreate（捆绑savedInstanceState）{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.activity_main）;    的for（int i = 0; I＆LT; url.length;我++）
    {        // URL是String数组，其中有2个网址。
        Picasso.with（本）.load（URL [I]）
        .into（新目标（）{            @覆盖
            在prepareLoad（绘制对象为arg0）公共无效{
                // TODO自动生成方法存根            }            @覆盖
            公共无效onBitmapLoaded（位图将arg0，ARG1 LoadedFrom）{
                // TODO自动生成方法存根
                将arg0 = Bitmap.createScaledBitmap（为arg0，150，150，TRUE）;
                ++计数; //递增1计数
                文件路径= saveFile的（为arg0）; //我只是调用这个函数来检查onBitmapLoaded`多少次`调用。它被称为只有一次......！
            }            @覆盖
            公共无效onBitmapFailed（绘制对象为arg0）{
                // TODO自动生成方法存根            }
        }）;
    }
}公共字符串了saveFile（位图BM）
{   Toast.makeText（getApplicationContext（），+计数，100）.show（）; //显示计数的值，它始终显示为** 2 **。
   返回;
}
 

I'm using Picasso library to download images from URL. This is my first attempt on Picasso

Scenario : I want to download some images from server and store them into a file. I know how to store into file and retrieve. When I ran the below code, I happen to see that I'm getting only last image. It seems like Picasso runs parallelly. I checked it by displaying a toast message. Is there anyway to solve this issue?

Problem : I'm getting only the last url image.

Here's my code

static int  count = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    for (int i = 0; i < url.length; i++)
    {

        // url is String array which has 2 urls. 
        ++count;   // Incrementing the count by 1
        Picasso.with(this).load(url[i])
        .into(new Target() {

            @Override
            public void onPrepareLoad(Drawable arg0) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onBitmapLoaded(Bitmap arg0, LoadedFrom arg1) {
                // TODO Auto-generated method stub
                arg0 = Bitmap.createScaledBitmap(arg0, 150, 150, true);
                filePath = saveFile(arg0);   // I'm just calling this function to check how many times `onBitmapLoaded` is called. And it is called only once...!!
            }

            @Override
            public void onBitmapFailed(Drawable arg0) {
                // TODO Auto-generated method stub

            }
        });
    }
}

public String saveFile (Bitmap bm)
{

   Toast.makeText(getApplicationContext(), ""+count, 100).show(); // Displaying the value of count, which always display as **2**. 
   return "";
}

解决方案

Try this way,hope this will help you to solve your problem.

static int  count = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    for (int i = 0; i < url.length; i++)
    {

        // url is String array which has 2 urls. 
        Picasso.with(this).load(url[i])
        .into(new Target() {

            @Override
            public void onPrepareLoad(Drawable arg0) {
                // TODO Auto-generated method stub

            }

            @Override
            public void onBitmapLoaded(Bitmap arg0, LoadedFrom arg1) {
                // TODO Auto-generated method stub
                arg0 = Bitmap.createScaledBitmap(arg0, 150, 150, true);
                ++count; // Incrementing the count by 1
                filePath = saveFile(arg0);   // I'm just calling this function to check how many times `onBitmapLoaded` is called. And it is called only once...!!
            }

            @Override
            public void onBitmapFailed(Drawable arg0) {
                // TODO Auto-generated method stub

            }
        });
    }
}

public String saveFile (Bitmap bm)
{

   Toast.makeText(getApplicationContext(), ""+count, 100).show(); // Displaying the value of count, which always display as **2**. 
   return "";
}

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