我已经能够使用相机拍摄照片或从画廊中取出并使用此代码在ImageView中显示它.我现在需要做的是使用该图片并将其上传到Parse.我一直在谷歌上搜索,我没有找到正确的方法来做到这一点.有人可以帮我这个吗？是否可以从ImageView上传图像？谢谢.
protected Button mFromCamera;
protected Button mFromGallery;
protected ImageView mImageView;
private static final int CAMERA_REQUEST = 1888;
private static final int SELECT_PHOTO = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Initialize ImageView
mImageView = (ImageView) findViewById(R.id.ImgPrev);
//Initialize Camera
mFromCamera = (Button) findViewById(R.id.FromCamera);
//use camera
mFromCamera.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent,CAMERA_REQUEST);
} //use camera end
});
//initialize button
mFromGallery = (Button) findViewById(R.id.FromGallery);
//pick a photo
mFromGallery.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent,SELECT_PHOTO);
}
});//pick a photo end
}
//previewing Image
@Override
protected void onActivityResult(int requestCode,int resultCode,Intent data) {
super.onActivityResult(requestCode,resultCode,data);
switch (requestCode) {
//from the gallery
case SELECT_PHOTO:
if (requestCode == SELECT_PHOTO && resultCode == RESULT_OK && null!= data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,filePathColumn,null,null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
mImageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
break;
//from the camera
case CAMERA_REQUEST:
if (requestCode == CAMERA_REQUEST && resultCode == RESULT_OK) {
Bitmap photo = (Bitmap) data.getExtras().get("data");
mImageView.setImageBitmap(photo);
}
break;
}
}//Preview Image End
最佳答案
阅读你的答案：
I already followed the code that you have before. I was able to upload the image to parse. but I dont know how to switch the drawable source to be my image from camera/gallery or imageview. – stanley santoso
至 ：
Abhishek Bansal
我明白你的问题不是解析你的形象？
试着回答你的问题：
I dont know how to switch the drawable source to be my image from camera/gallery or imageview.
1 – R.drawable.androidbegin似乎是你的问题但事实是你已经在你的代码中解析了你的位图：
来自画廊 – >
mImageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
来自相机 – >
Bitmap photo = (Bitmap) data.getExtras().get("data");
2 – 所以我建议在代码的开头声明一个Bitmap类型的变量
private Bitmap yourbitmap;
3 – 然后在代码中为库和相机分配位图,并使用它来解析它.
...
yourbitmap = BitmapFactory.decodeFile(picturePath);
...
yourbitmap = (Bitmap) data.getExtras().get("data");
...
4 – 最后你可以这样使用你的位图：
// Bitmap bitmap = BitmapFactory.decodeResource(getResources(),// R.drawable.androidbegin);
// Convert it to byte
ByteArrayOutputStream stream = new ByteArrayOutputStream();
// Compress image to lower quality scale 1 - 100
yourbitmap.compress(Bitmap.CompressFormat.PNG,100,stream);
byte[] image = stream.toByteArray();
...
