android show image in default gallery viewer

问题

I am loading some images into my activity using an AsyncTask as clickable images. On click I need to open that image in the default image viewer of the android. I am new to android. Can any one please help. My code looks like

ImageView image = new ImageView(this);
String ed="http://www.domain.com/image.jpg";
image.setTag(ed);
DownloadImagesTask td=new DownloadImagesTask(this);
td.execute(image);

image.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
         Log.v("TAGG","sdsd"); 
      }
});

Please help me.

回答1:

Gallery application does not accept URL for an image as part of the Intent. You need to save the image first. Then you can launch the default image viewer with something like this:

Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse("file://" + "/sdcard/test.jpg"), "image/*");
startActivity(intent);

来源：https://stackoverflow.com/questions/17831562/android-show-image-in-default-gallery-viewer