Android调用系统相机拍照并获取图片

调用系统相机，我们需要用到Intent，而获取拍照后的图片数据，可以使用两种方式，下面贴代码：

第一种方法：

Intent mIntent = new Intent();
mIntent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
mIntent.putExtra(MediaStore.Images.Media.ORIENTATION, 0);
startActivityForResult(mIntent, 200);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(resultCode == Activity.RESULT_OK){
        switch(requestCode){
        case 200:
            //从data的Bundle中取数据
            imageView.setImageBitmap((Bitmap) data.getExtras().get("data"));
            break;
        }
    }
}

File pictureFile = new File(Environment.getExternalStorageDirectory(), 
        "picture" + System.currentTimeMillis()/1000 + ".jpg");
Intent mIntent = new Intent();
mIntent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
mIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(pictureFile));
mIntent.putExtra(MediaStore.Images.Media.ORIENTATION, 0);
startActivityForResult(mIntent, 200);

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(resultCode == Activity.RESULT_OK){
        switch(requestCode){
        case REQUEST_CODE_TAKE_PICTURE:
            imageView.setImageBitmap(BitmapFactory.decodeFile(pictureFile.getAbsolutePath()));
            break;
        }
    }
}