Question

您好我想从设备获取图像并在网格视图中显示它，当我将i更改为3时，它向我显示位置为3的图像五次：

this.renderContent = function() {
    if (this.retrievedNewsArticles == null || this.retrievedNewsArticles.length == 0) {
        $(contentContainerElement).html('<p class="inline-message">There is currently no data to display.</p>');
    } else {
        // The loop is here
        for (var i = 0; i < this.retrievedNewsArticles.length; i++) {
            this.addUnit(this.retrievedNewsArticles[i]);
        }
    }
};

谢谢!!

Answer 1

我发现这里的答案是代码：首先我添加了新功能：

public static Bitmap decodeFile（File f，int WIDTH，int HIGHT）{

    try {
        //Decode image size
        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inJustDecodeBounds = true;
        BitmapFactory.decodeStream(new FileInputStream(f),null,o);

        //The new size we want to scale to
        final int REQUIRED_WIDTH=WIDTH;
        final int REQUIRED_HIGHT=HIGHT;
        //Find the correct scale value. It should be the power of 2.
        int scale=1;
        while(o.outWidth/scale/2>=REQUIRED_WIDTH && o.outHeight/scale/2>=REQUIRED_HIGHT)
            scale*=2;

        //Decode with inSampleSize
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        o2.inSampleSize=scale;
        return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
    } catch (FileNotFoundException e) {}
    return null;
}

并在获取视图中更改Bitmap b = BitmapFactory.decodeStream(new FileInputStream(file[i])); 使用此代码：Bitmap bitmap = decodeFile(file[i],180,250); imageView.setImageBitmap(bitmap);

我想将位图图像列表添加到网格视图中

1 个答案: