如何在android java应用程序中从设备获取图像
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how to get the images from device in android java application
提问by Aswan
In my application I want to upload the image.
在我的应用程序中，我想上传图像。
For that I have to get images from gallery in android device.
为此，我必须从 android 设备的图库中获取图像。
How do I write code that accomplishes this?
我如何编写代码来实现这一点？
回答by Samuh
Raise an Intent with Action as ACTION_GET_CONTENTand set the type to "image/*". This will start the photo picker Activity. When the user selects an image, you can use the onActivityResultcallback to get the results.
使用 Action 提升 IntentACTION_GET_CONTENT并将类型设置为“ image/*”。这将启动照片选择器活动。当用户选择图像时，您可以使用onActivityResult回调来获取结果。
Something like:
就像是：
Intent photoPickerIntent = new Intent(Intent.ACTION_GET_CONTENT);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, 1);
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK)
{
Uri chosenImageUri = data.getData();
Bitmap mBitmap = null;
mBitmap = Media.getBitmap(this.getContentResolver(), chosenImageUri);
}
}
