我想在我的 Android 应用程序中添加图像捕获,用户可以在其中捕获图像,我使用以下代码:
public void open_camera() {
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
try {
// place where to store camera taken picture
photo = this.createTemporaryFile("picture", ".jpg");
photo.delete();
} catch(Exception e) {
Toast.makeText(this, "Please check SD card! Image shot is impossible!", 10000);
}
mImageUri = Uri.fromFile(photo);
intent.putExtra(MediaStore.EXTRA_OUTPUT, mImageUri);
//start camera intent
startActivityForResult(intent,SELECT_PICTURE_CAMERA );
//Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
//startActivityForResult(cameraIntent, SELECT_PICTURE_CAMERA);
}
private File createTemporaryFile(String part, String ext) throws Exception {
File tempDir= Environment.getExternalStorageDirectory();
tempDir=new File(tempDir.getAbsolutePath()+"/.temp/");
if(!tempDir.exists()) {
tempDir.mkdir();
}
return File.createTempFile(part, ext, tempDir);
}
当我找回
case SELECT_PICTURE_CAMERA:
if(resultCode == RESULT_OK) {
// Toast.makeText(this,"Camera" + imageReturnedIntent.getStringExtra(ZBarConstants.SCAN_RESULT), Toast.LENGTH_LONG).show();
//this.yourSelectedImage = (Bitmap) imageReturnedIntent.getExtras().get("data");
/*
ImageButton imgbtn = (ImageButton) findViewById(R.id.imageButton_Photo);
BitmapDrawable background = new BitmapDrawable(this.yourSelectedImage);
imgbtn.setBackgroundDrawable(background);
*/
try {
File f=new File(mImageUri.getPath());
ExifInterface exif = new ExifInterface(f.getPath());
int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL);
int angle = 0;
if (orientation == ExifInterface.ORIENTATION_ROTATE_90) {
angle = 90;
} else if (orientation == ExifInterface.ORIENTATION_ROTATE_180) {
angle = 180;
} else if (orientation == ExifInterface.ORIENTATION_ROTATE_270) {
angle = 270;
}
Matrix mat = new Matrix();
mat.postRotate(90);
Bitmap bmp = BitmapFactory.decodeStream(new FileInputStream(f), null, null);
this.yourSelectedImage = Bitmap.createBitmap(bmp, 0, 0, bmp.getWidth(), bmp.getHeight(), mat, true);
} catch (IOException e) {
Log.w("TAG", "-- Error in setting image");
} catch(OutOfMemoryError oom) {
Log.w("TAG", "-- OOM Error in setting image");
}
但不幸的是,在完成所有这些之后,静止图像不是全尺寸的,它总是风景。