android从相册中选择报无法加载照片

最近学点android，代码都是来自第一行代码这本书。按书上代码实现后，报无法加载。

有时候，如果图片太大，也可能出现加载错误。所以加一个剪切功能还是不错的

正确实现如下：

chooseFromAlbum = (Button) findViewById(R.id.choose_from_album);

chooseFromAlbum.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

File outputImage = new File(Environment

.getExternalStorageDirectory(), "output_image.jpg");

try {

if (outputImage.exists()) {

outputImage.delete();

}

outputImage.createNewFile();

} catch (IOException e) {

e.printStackTrace();

}

imageUri = Uri.fromFile(outputImage);

Intent intent = new Intent("android.intent.action.PICK");

intent.setType("image/*");

intent.putExtra("crop", true);

intent.putExtra("scale", true);

intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

startActivityForResult(intent, TAKE_PHOTO);//传错了参数

}

});

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

switch (requestCode) {

case TAKE_PHOTO:

if (resultCode == RESULT_OK) {

//书中代码这没有赋值

if(data != null) {

imageUri = data.getData();

}

Intent intent = new Intent("com.android.camera.action.CROP");

intent.setDataAndType(imageUri, "image/*");

intent.putExtra("scale", true);

intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

startActivityForResult(intent, CROP_PHOTO);

}

break;

case CROP_PHOTO:

if (resultCode == RESULT_OK) {

try {

Bitmap bitmap = BitmapFactory

.decodeStream(getContentResolver().openInputStream(

imageUri));

picture.setImageBitmap(bitmap);

} catch (Exception e) {

e.printStackTrace();

}

}

break;

default:

break;

}

}