android如何将捕获的图像保存到手机库中

Posted 2021-04-06

我有两个活动。在一项活动中，我有一个ImageView和一个相机按钮。当我按下相机按钮时，它会转到其他活动，其中两个按钮在那里捕获，另一个是选择按钮。按下捕获时，它会捕获图像。但问题是如何将此捕获图像保存到图库。按下“选择”按钮后，捕获的图像应显示在第1个活动的ImageView上。我怎样才能做到这一点。

答案

请参阅http://blog.kupriyanov.com/2010/02/solved-android-save-image-to-media.html以保存到图库，并查看Get/pick an image from Android's built-in Gallery app programmatically以显示图库图像。

另一答案

这就是我做的方式。图像在SDCard上以分钟+秒+ .jpg保存：

final static private int NEW_PICTURE = 1;
private String mCameraFileName;


ImageButton Edit = (ImageButton) findViewById(R.id.internetbrowser4);

    Edit.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            Intent intent = new Intent();
            // Picture from camera
            intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);

            // This is not the right way to do this, but for some reason, having
            // it store it in
            // MediaStore.Images.Media.EXTERNAL_CONTENT_URI isn't working right.

            Date date = new Date();
            DateFormat df = new SimpleDateFormat("-mm-ss");

            String newPicFile = "Bild"+ df.format(date) + ".jpg";
            String outPath = "/sdcard/" + newPicFile;
            File outFile = new File(outPath);

            mCameraFileName = outFile.toString();
            Uri outuri = Uri.fromFile(outFile);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, outuri);


                startActivityForResult(intent, NEW_PICTURE);

        }
    });

  public void onActivityResult(int requestCode, int resultCode, Intent data) 
    {
        if (requestCode == NEW_PICTURE) 
        {
            // return from file upload
            if (resultCode == Activity.RESULT_OK) 
            {
                Uri uri = null;
                if (data != null) 
                {
                    uri = data.getData();
                }
                if (uri == null && mCameraFileName != null) 
                {
                    uri = Uri.fromFile(new File(mCameraFileName));
                }
                File file = new File(mCameraFileName);
                if (!file.exists()) {
                    file.mkdir();
                }
            }
        }} 
}

另一答案

试试这个..

String path = Environment.getExternalStorageDirectory() + "/CameraImages/example.jpg";
                            File file = new File(path);
                            Uri outputFileUri = Uri.fromFile( file );
                            Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
                            intent.putExtra( MediaStore.EXTRA_OUTPUT, outputFileUri );

                            startActivityForResult( intent, CAPTURE_IMAGE );

您的图像将保存在此位置“sdcard / CameraImages / example.jpg”