Android:将图像保存到SD卡中的特定文件夹 [英] android: save images to specific folder in the sd card

问题描述

我这里有一个代码段，可将位图保存在sd卡上:

i have here a code snippet that saves a bitmap on sd card:

String filename = String.valueOf(System.currentTimeMillis()) ;
ContentValues values = new ContentValues();   
values.put(Images.Media.TITLE, filename);
values.put(Images.Media.DATE_ADDED, System.currentTimeMillis()); 
values.put(Images.Media.MIME_TYPE, "image/jpeg");

Uri uri = getContentResolver().insert(Images.Media.EXTERNAL_CONTENT_URI, values);

try {
    OutputStream outStream = getContentResolver().openOutputStream(uri);
    bm.compress(Bitmap.CompressFormat.JPEG, 90, outStream);
    outStream.flush();
    outStream.close();

默认存储为图库中的相机"文件夹.

the default storage is the "Camera" folder in the gallery.

我的问题是:

使用上面的代码，我可以将图像保存到SD卡上的其他文件夹中吗?

using the code above, can i save my images to a different folder on my sd card?

推荐答案

尝试一下

File myDir=new File("/sdcard/saved_images");
myDir.mkdirs();
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "Image-"+ n +".jpg";
File file = new File (myDir, fname);
if (file.exists ()) file.delete (); 
try {
       FileOutputStream out = new FileOutputStream(file);
       finalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
       out.flush();
       out.close();

} catch (Exception e) {
       e.printStackTrace();
}

并将其添加到清单中

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> 

在此处查看我的答案: https://stackoverflow.com/a/7887114/964741

check my answer here : https://stackoverflow.com/a/7887114/964741

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