java Android如何从sd卡动态查看图像？我的代码出错了

Question

我能够在图像视图中放置图像。但当我动态地做的时候，我无法得到图像

让我们检查一下这段代码，看看有没有一个图像视图，我们可以得到其中的图像代码是

private static final int SELECT_PICTURE = 1;
private String selectedImagePath;
private ImageView img1;
String imageOne = "";

创建图像对象及其onclick方法

img1 = (ImageView) findViewById(R.id.imageView1);

        ((ImageView) findViewById(R.id.imageView1))
                .setOnClickListener(new OnClickListener() {
                    public void onClick(View arg0) {
                        Intent intent = new Intent();
                        intent.setType("image/*");
                        intent.setAction(Intent.ACTION_GET_CONTENT);
                        startActivityForResult(
                                Intent.createChooser(intent, "Select Picture"),
                                SELECT_PICTURE);
                    }
                });

从sd卡获取图像的方法

public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
        if (requestCode == SELECT_PICTURE) {
                Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                System.out.println("Image Path : " + selectedImagePath);
                img1.setImageURI(selectedImageUri);
                BitmapDrawable drawable = (BitmapDrawable) img1.getDrawable();
                Bitmap bitmap = drawable.getBitmap();
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                bitmap.compress(CompressFormat.PNG, 100, bos);
                byte[] bb = bos.toByteArray();
                imageOne = Base64.encodeToString(bb, Base64.DEFAULT);
                imageOne = addQuotes(imageOne);
            }

获取上面使用的Uri方法

public String getPath(Uri uri) {
        String[] projection = { MediaStore.Images.Media.DATA };
        Cursor cursor = managedQuery(uri, projection, null, null, null);
        int column_index = cursor
                .getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        return cursor.getString(column_index);
    }

这段代码工作正常，但当我尝试动态转换它时，onActiveResult方法中出现了获取id错误

我的动态代码是

RelativeLayout layout = (RelativeLayout)findViewById(R.id.MultiQuesRelaLayOut);

final ImageView[] im=new ImageView[10];
for(int img=0;img<2.length;img++)
    {
         im[img]=new ImageView(this);   
            RelativeLayout.LayoutParams params=new RelativeLayout.LayoutParams
                    ((int)LayoutParams.WRAP_CONTENT,(int)LayoutParams.WRAP_CONTENT);
            params.leftMargin=25;
            params.topMargin=(img+1)*(35+add);
            im[img].setId(img);
            im[img].layout(5,5,5,5);
            im[img].setVisibility(View.VISIBLE);
            im[img].setBackgroundColor(color.background_dark);
            im[img].setPadding(5, 15, 5, 15);
            im[img].setLayoutParams(params);
            layout.addView(im[img]);
            im[img].setOnClickListener(ImageOnClick(im[img]));
    } 

这里是动态图像视图的onclick方法

View.OnClickListener ImageOnClick(final ImageView image) {
    return new View.OnClickListener() {
        public void onClick(View v) {
            System.out.println("Image pressed is: "+ image.getId());
            Intent intent = new Intent();
            intent.setType("image/*");
            intent.setAction(Intent.ACTION_GET_CONTENT);
            startActivityForResult(
                    Intent.createChooser(intent, "Select Picture"),
                    image.getId());
        }
    };
}

从sd卡获取图像的方法

public void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (resultCode == RESULT_OK) {
                Uri selectedImageUri = data.getData();
                selectedImagePath = getPath(selectedImageUri);
                System.out.println("Image Path : " + selectedImagePath);
                data.setImageURI(selectedImageUri);
                BitmapDrawable drawable = (BitmapDrawable) data.getDrawable();
                Bitmap bitmap = drawable.getBitmap();
                ByteArrayOutputStream bos = new ByteArrayOutputStream();
                bitmap.compress(CompressFormat.PNG, 100, bos);
                byte[] bb = bos.toByteArray();
        }
    }

Geturi方法对于这两种方法都是相同的

在onActivityResult方法中，我无法获得图像视图的ID，这导致了问题，如何解决希望您的建议

谢谢

Answer 1

for(int img=0;img<2.length;img++)    //  2.length? is this correct? 

加上

implements View.OnClickListener 

给你们班 而不是

// m[img].setOnClickListener(ImageOnClick(im[img]));
m[img].setOnClickListener(this);

将此方法添加到类中

 @Override
    public void onClick(View v) {
        //  v.getId()  there you have it