java 将 Android 上的 Bitmap() 分享到 twitter、facebook、mail
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Share Bitmap() on android to twitter, facebook, mail
提问by chrstnwhlrt
maybe an easy question: I want to share a bitmap I received over the net to twitter/facebook/etc with the default share "intent".
也许是一个简单的问题：我想将我通过网络收到的位图与默认共享“意图”共享到 twitter/facebook/etc。
The code I found
我找到的代码
Intent sendIntent = new Intent(Intent.ACTION_SEND);
sendIntent.setType("image/jpeg");
sendIntent.putExtra(Intent.EXTRA_STREAM, "IDONTKNOW");
sendIntent.putExtra(Intent.EXTRA_TEXT,
"See my captured picture - wow :)");
startActivity(Intent.createChooser(sendIntent, "share"));
needs to be filled at the point "IDONTKNOW" with the bitmap. (this.bitmap)
需要在“IDONTKNOW”点填充位图。(this.bitmap)
I found no way to handle this without saving the bitmap to internal sd..
我发现没有将位图保存到内部 sd 的方法来处理这个问题。
regards
问候
采纳答案by feelinglucky
Simply, you can convert a bitmap into PNG from external storage.
简单地说，您可以将位图从外部存储转换为 PNG。
File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File imageFile = new File(path, getCurrentTime()+ ".png");
FileOutputStream fileOutPutStream = new FileOutputStream(imageFile);
bitmap.compress(Bitmap.CompressFormat.PNG, 80, fileOutPutStream);
fileOutPutStream.flush();
fileOutPutStream.close();
Then, you can get a URI through Uri.parse:
然后，你可以通过 Uri.parse 得到一个 URI：
return Uri.parse("file://" + imageFile.getAbsolutePath());
回答by keyboardr
Might be a little late now, but you could also do String url = Images.Media.insertImage(context.getContentResolver(), image, "title", null);if you don't care how it's stored.
现在可能有点晚了，但String url = Images.Media.insertImage(context.getContentResolver(), image, "title", null);如果你不关心它是如何存储的，你也可以这样做。
回答by chrstnwhlrt
Ok I got it on my own, it seems there is no way to get the image uri without saving the bitmap to disk, therefore I use this simple method:
好的，我自己得到了它，如果不将位图保存到磁盘，似乎无法获取图像 uri，因此我使用了这个简单的方法：
private Uri storeImage() {
this.storedImage = null;
this.storeImage = true;
// Wait for the image
while (this.storedImage == null && !this.stop)
try {
Thread.sleep(100);
} catch (InterruptedException e) {
e.printStackTrace();
}
this.storeImage = false;
FileOutputStream fileOutputStream = null;
File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File file = new File(path, "cwth_" + getCurrentTime()+ ".jpg");
try {
fileOutputStream = new FileOutputStream(file);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
BufferedOutputStream bos = new BufferedOutputStream(fileOutputStream);
this.storedImage.compress(CompressFormat.JPEG, JPEG_STORE_QUALITY, bos);
try {
bos.flush();
bos.close();
fileOutputStream.flush();
fileOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
return Uri.parse("file://" + file.getAbsolutePath());
}
回答by ingyesid
Send Binary Content Binary data is shared using the ACTION_SEND action combined with setting the appropriate MIME type and placing the URI to the data in an extra named EXTRA_STREAM. This is commonly used to share an image but can be used to share any type of binary content:
发送二进制内容 二进制数据使用 ACTION_SEND 操作与设置适当的 MIME 类型以及将数据的 URI 放在名为 EXTRA_STREAM 的额外内容中共享。这通常用于共享图像，但可用于共享任何类型的二进制内容：
Intent shareIntent = new Intent();
shareIntent.setAction(Intent.ACTION_SEND);
shareIntent.putExtra(Intent.EXTRA_STREAM, uriToImage);
shareIntent.setType("image/jpeg");
startActivity(Intent.createChooser(shareIntent, getResources().getText(R.string.send_to)));
source http://developer.android.com/training/sharing/send.html
