我如何将图片复制到内部存储器并在之后进行恢复?
您可以使用openFileOutput()和Bitmap.compress()的以下组合将图像存储到内部存储器中。
// Create a BitMap object of the image to be worked with
final Bitmap bm = BitmapFactory.decodeStream( ..some image.. );
// The openfileOutput() method creates a file on the phone/internal storage in the context of your application
final FileOutputStream fos = openFileOutput("my_new_image.jpg", Context.MODE_PRIVATE);
// Use the compress method on the BitMap object to write image to the OutputStream
bm.compress(CompressFormat.JPEG, 90, fos);
//read bitmap from resource
public InputStream getBitmapStreamFromResource(Context context, int recourceId)
{
return context.getResources().getAssets().open(recourceId);
}
// convert stream into Bitmap
public Bitmap getBitmapFromStream(InputStream is)
{
return BitmapFactory.decodeStream(is);
}
//inflate bitmap in a given parent View
public View inflateToView(Context context, ViewGroup parent, Bitmap bitmap)
{
ViewGroup layout=new LinearLayout(context);
layout.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT));
ImageView imageView=new ImageView(context);
imageView.setEnabled(true);
imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageView.setAdjustViewBounds(true);
imageView.setImageBitmap(bitmap);
layout.addView(imageView);
parent.addView(layout);
return layout;
}