获取图像的缩略图

问题描述

我的工作在Android的应用程序，但我卡的问题，当我得到的相机，我的显示是ImageView的图像的图像，但我需要表现出同样的图像的缩略图也。我已经检查了一个应用程序在这里是<一个href="https://play.google.com/store/apps/details?ID=com.appspot.swiss$c$cmonkeys.effectsfree&hl=en"相对=nofollow>链接

I am working in Android application but I'm stuck with the problem, when I get the image from camera I am displaying that image in imageview but I need to show the same image as thumbnail also. I have checked one application here is the link

下面是图像：

推荐答案

使用下面的方法来获取缩略图。

Use following method to get thumbnails.

当你有图像的路径这个方法是非常有用的。

This method is useful when you have "Path" of image.

/**
 * Create a thumb of given argument size
 *
 * @param selectedImagePath
 *            : String value indicate path of Image
 * @param thumbWidth
 *            : Required width of Thumb
 * @param thumbHeight
 *            : required height of Thumb
 * @return Bitmap : Resultant bitmap
 */
public static Bitmap createThumb(String selectedImagePath, int thumbWidth,
        int thumbHeight) {
    BitmapFactory.Options options = new BitmapFactory.Options();

    // Decode weakReferenceBitmap with inSampleSize set
    options.inJustDecodeBounds = true;

    BitmapFactory.decodeFile(selectedImagePath, options);

    final int height = options.outHeight;
    final int width = options.outWidth;

    int inSampleSize = 1;

    if (height > thumbHeight || width > thumbWidth) {
        if (width > height) {
            inSampleSize = Math.round((float) height / (float) thumbHeight);
        } else {
            inSampleSize = Math.round((float) width / (float) thumbWidth);
        }
    }

    options.inJustDecodeBounds = false;
    options.inSampleSize = inSampleSize;

    return BitmapFactory.decodeFile(selectedImagePath, options);
}

要使用此方法，

createThumb("path of image",100,100);

修改

此方法用于当你有位图您的形象。

This method is used when you have Bitmap of your image.

public static Bitmap createThumb(Bitmap sourceBitmap, int thumbWidth,int thumbHeight) {
    return Bitmap.createScaledBitmap(sourceBitmap, thumbWidth, thumbHeight,true);
}

要使用这个方法

createThumb(editedImage, 100, 100);

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