我有一个按钮,我想当我点击它时,图像会保存到SD卡(或内部存储,因为在htc one x中,我们没有像SD卡那样的外部存储)
这是我的代码:
sd.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
MpClick.start();
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);
bitMapToShare.compress(Bitmap.CompressFormat.JPEG, 600, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
});
以及如何使消息出现在其中,上面写着“您的图像已保存”。就像一个警报,但持续了2秒钟,然后就消失了
发布于 2012-08-07 20:37:07
尝尝这个
private void SaveImage(Bitmap finalBitmap) {
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/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();
}
}
并将此添加到清单中
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
请看下面的答案Android saving file to external storage
编辑:通过使用此行,您可以在图库视图中查看保存的图像。
sendBroadcast(new Intent(
Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://" + Environment.getExternalStorageDirectory())));
发布于 2012-08-07 20:37:03
使用Toast消息
喜欢
Toast.makeText(Your_class_name.this,
"Your image is saved to this folder", Toast.LENGTH_LONG)
.show();
https://stackoverflow.com/questions/11846108
复制相似问题