android – 使用毕加索从url保存图像？

我正在尝试使用API​​毕加索保存图像.要做到这一点,我正在尝试使用Target来保存,但我无法做到这一点.

我该怎么做？

试

//save image
    public static void imageDownload(Context ctx){
        Picasso.with(ctx)
                .load("http://blog.concretesolutions.com.br/wp-content/uploads/2015/04/Android1.png")
                .into(getTarget("http://blog.concretesolutions.com.br/wp-content/uploads/2015/04/Android1.png"));
    }

    //target to save
    private static Target getTarget(final String url){
        Target target = new Target(){

            @Override
            public void onBitmapLoaded(final Bitmap bitmap,Picasso.LoadedFrom from) {
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        //Log.i("PRODUTOS_FOLDER",CreateAppFolder.getProdutosFolder());
                        File file = new File(Environment.getExternalStorageDirectory() + url);

                        try {
                            file.createNewFile();
                            FileOutputStream ostream = new FileOutputStream(file);
                            bitmap.compress(Bitmap.CompressFormat.JPEG,100,ostream);
                            ostream.flush();
                            ostream.close();
                        }
                        catch (Exception e) {
                            e.printstacktrace();
                        }
                    }
                }).start();

            }

            @Override
            public void onBitmapFailed(Drawable errorDrawable) {

            }

            @Override
            public void onPrepareLoad(Drawable placeHolderDrawable) {

            }
        };
        return target;
    }

例外

java.io.IOException: open Failed: ENOENT (No such file or directory)

解决方法

解决了.现在工作正常！

我做了

//save image
    public static void imageDownload(Context ctx,String url){
        Picasso.with(ctx)
                .load("http://blog.concretesolutions.com.br/wp-content/uploads/2015/04/Android1.png")
                .into(getTarget(url));
    }

    //target to save
    private static Target getTarget(final String url){
        Target target = new Target(){

            @Override
            public void onBitmapLoaded(final Bitmap bitmap,Picasso.LoadedFrom from) {
                new Thread(new Runnable() {

                    @Override
                    public void run() {

                        File file = new File(Environment.getExternalStorageDirectory().getPath() + "/" + url);
                        try {
                            file.createNewFile();
                            FileOutputStream ostream = new FileOutputStream(file);
                            bitmap.compress(Bitmap.CompressFormat.JPEG,80,ostream);
                            ostream.flush();
                            ostream.close();
                        } catch (IOException e) {
                            Log.e("IOException",e.getLocalizedMessage());
                        }
                    }
                }).start();

            }

            @Override
            public void onBitmapFailed(Drawable errorDrawable) {

            }

            @Override
            public void onPrepareLoad(Drawable placeHolderDrawable) {

            }
        };
        return target;
    }

原文地址：https://www.jb51.cc/android/311431.html