相关疑难解决方法(0)

我有正方形或矩形的位图.我采取最短的一面,做这样的事情:

int value = 0;
if (bitmap.getHeight() <= bitmap.getWidth()) {
    value = bitmap.getHeight();
} else {
    value = bitmap.getWidth();
}

Bitmap finalBitmap = null;
finalBitmap = Bitmap.createBitmap(bitmap, 0, 0, value, value);

然后我使用它将它缩放到144 x 144位图:

Bitmap lastBitmap = null;
lastBitmap = Bitmap.createScaledBitmap(finalBitmap, 144, 144, true);

问题是它裁剪原始位图的左上角,任何人都有代码来裁剪位图的中心？

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 …