相关疑难解决方法(0)

我一直在尝试裁剪和调整图像大小,同时通过相机意图拍摄照片,但不明白我在这里做错了什么 - 即使文件正确保存在文件上也无法获取裁剪后的图像数据电话.

...
public class Add extends Activity {
    private String imageFilePath;
    ...
    protected void onCreate(Bundle savedInstanceState) {
    ...
        imageFilePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/tmp/" + String.valueOf(System.currentTimeMillis()) + ".jpg";
        imageFile = new File(imageFilePath);
        imageFileUri = Uri.fromFile(imageFile);
        Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        intent.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, imageFileUri);
        intent.putExtra("crop", "true");
        intent.putExtra("outputX", 600);
        intent.putExtra("outputY", 600);
        intent.putExtra("aspectX", 1);
        intent.putExtra("aspectY", 1);
        intent.putExtra("scale", true);
        intent.putExtra("return-data", true); 
        startActivityForResult(intent, 0);
        ...
    }
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch(requestCode) {
        case 0 : {    
        Bitmap bitmap = BitmapFactory.decodeFile(imageFilePath); …

我正在尝试加载相机从我的Android应用程序拍摄照片,

我的Photos.java是

private Uri imageUri;

public void takePhoto(View view) {
    Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
    File photo = new File(Environment.getExternalStorageDirectory(),  "Pic.jpg");
    intent.putExtra(MediaStore.EXTRA_OUTPUT,
            Uri.fromFile(photo));
    imageUri = Uri.fromFile(photo);
    startActivityForResult(intent, TAKE_PICTURE);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
    case TAKE_PICTURE:
        if (resultCode == Activity.RESULT_OK) {
            Uri selectedImage = imageUri;
            getContentResolver().notifyChange(selectedImage, null);
            ImageView imageView = (ImageView) findViewById(R.id.ImageView);
            ContentResolver cr = getContentResolver();
            Bitmap bitmap;
            try {
                 bitmap = android.provider.MediaStore.Images.Media
                 .getBitmap(cr, selectedImage);

                imageView.setImageBitmap(bitmap);
                Toast.makeText(this, selectedImage.toString(),
                        Toast.LENGTH_LONG).show(); …