我使用此代码将图像保存在设备中，并且工作良好，但是图像名称有问题，我不知道要在此处粘贴什么（我从毕加索的url下载图像）这是代码
void saveMyImage (String appName, String imageUrl, String imageName) {
Bitmap bmImg = loadBitmap(imageUrl);
File filename;
try {
String path1 = android.os.Environment.getExternalStorageDirectory()
.toString();
File file = new File(path1 + "/" + appName);
if (!file.exists())
file.mkdirs();
filename = new File(file.getAbsolutePath() + "/" + imageName
+ ".jpg");
FileOutputStream out = new FileOutputStream(filename);
bmImg.compress(Bitmap.CompressFormat.JPEG, 100, out);
out.flush();
out.close();
ContentValues image = new ContentValues();
image.put(Images.Media.TITLE, appName);
image.put(Images.Media.DISPLAY_NAME, imageName);
image.put(Images.Media.DESCRIPTION, "App Image");
image.put(Images.Media.DATE_ADDED, System.currentTimeMillis());
image.put(Images.Media.MIME_TYPE, "image/jpg");
image.put(Images.Media.ORIENTATION, 0);
File parent = filename.getParentFile();
image.put(Images.ImageColumns.BUCKET_ID, parent.toString()
.toLowerCase().hashCode());
image.put(Images.ImageColumns.BUCKET_DISPLAY_NAME, parent.getName()
.toLowerCase());
image.put(Images.Media.SIZE, filename.length());
image.put(Images.Media.DATA, filename.getAbsolutePath());
Uri result = getContentResolver().insert(
Images.Media.EXTERNAL_CONTENT_URI, image);
Toast.makeText(getApplicationContext(),
"download in " + filename, Toast.LENGTH_SHORT).show();
} catch (Exception e) {
e.printStackTrace();
}
}
这是onCreate中的调用方法
/* button to download the image */
download_image = findViewById(R.id.button_download);
checkPermission();
download_image.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (checkPermission()) {
String URL = intent.getStringExtra("imageUrl");
saveMyImage ("my app",URL,"i want to get the image name from the url");
}
}
});
我想从URL获取图像名称，那么我该怎么做？
尝试：
URI uri = new URI(URL );
URL videoUrl = uri.toURL();
File tempFile = new File(videoUrl.getFile());
String fileName = tempFile.getName();
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我来说两句