[英]How to open Gallery to pick an image?
I am looking for a way to open onClick the gallery to pick an Picture. 我正在寻找一种打开onClick画廊以选择图片的方法。 I want to use that local "uploaded" picture in a listview of pictures. 我想在图片的列表视图中使用该本地“已上传”图片。 Can someone help and explain me how to do that. 有人可以帮我解释一下该怎么做。 I am a beginner in Android Developing. 我是Android开发的初学者。
public void pickImage() {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.setType("image/*");
startActivityForResult(intent, PICK_PHOTO_FOR_AVATAR);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICK_PHOTO_FOR_AVATAR && resultCode == Activity.RESULT_OK) {
if (data == null) {
//Display an error
return;
}
InputStream inputStream = context.getContentResolver().openInputStream(data.getData());
//Now you can do whatever you want with your inpustream, save it as file, upload to a server, decode a bitmap...
}
}
Here is a code i used in my app 这是我在应用程序中使用的代码
Intent pickImageIntent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(pickImageIntent, PICKIMAGE_REQUESTCODE);
And at the onActivity result method 而在onActivity结果方法
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PICKIMAGE_REQUESTCODE) {
if (resultCode == RESULT_OK) {
Uri imageUri = data.getData();
InputStream inputStream = null;
try {
inputStream = getContentResolver().openInputStream(imageUri);
bitmap = BitmapFactory.decodeStream(inputStream);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
} finally {
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
Log.d(TAG, "onActivityResult: error closing InputStream during reading image from the phone external storage");
}
}
}
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