Android 如何访问LayoutFlater imageView
这是我的目标Android 如何访问LayoutFlater imageView,android,android-imageview,layout-inflater,Android,Android Imageview,Layout Inflater,这是我的目标 public Object instantiateItem(ViewGroup container, int position) { layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE); View view = layoutInflater.inflate(R.layout.image_fullsc
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.image_fullscreen_preview, container, false);
ImageView imageViewPreview = (ImageView) view.findViewById(R.id.image_preview);
Image image = images.get(position);
Glide.with(getActivity()).load(image.getLarge())
.thumbnail(0.5f)
.crossFade()
.diskCacheStrategy(DiskCacheStrategy.ALL)
.into(imageViewPreview);
container.addView(view);
return view;
}
这是我的共享函数
在shareItem()上的公共无效{
//从视图中访问位图图像
ImageView i = (ImageView) getActivity().getLayoutInflater().inflate(R.layout.image_fullscreen_preview,null).findViewById(R.id.image_preview);
//imageViewPreview = (ImageView) viewPager.findViewById(R.id.image_preview);
// Get access to the URI for the bitmap
Uri bmpUri = getLocalBitmapUri(imageViewPreview);
if (bmpUri != null) {
// Construct a ShareIntent with link to image
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, bmpUri);
shareIntent.setType("image/*");
// Launch sharing dialog for image
startActivity(Intent.createChooser(shareIntent, "Share Image"));
} else {
// ...sharing failed, handle error
}
}
调试应用程序时,imageview为空
我想在R.id.image\u预览中共享图像
那么我如何才能访问R.id.image\u预览图像。为什么不使用类变量来存储ImageView,这样就可以在类中的任何地方使用它呢
private ImageView mImageView;
public Object instantiateItem(ViewGroup container, int position) {
layoutInflater = (LayoutInflater) getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = layoutInflater.inflate(R.layout.image_fullscreen_preview, container, false);
mImageView = (ImageView) view.findViewById(R.id.image_preview);
...
}
public void onShareItem() {
if (mImageView != null) {
Uri bmpUri = getLocalBitmapUri(imageViewPreview);
...
}
}
mImageView=(ImageView)getActivity().GetLayoutFlater().inflate(R.layout.image\u全屏\u预览,空)。findViewById(R.id.image\u预览);Uri bmpUri=getLocalBitmapUri(mImageView);böpUri为空:(