Question

所以我在一个片段中，我想从图库中获取图像并设置为CircleImageView。我开始意图并正确选择了图像，但是在onActivityResult上未设置图像。保留默认的src映像。这是代码

fragment_layout

<de.hdodenhof.circleimageview.CircleImageView
                android:id="@+id/photo"
                android:layout_width="150dp"
                android:layout_height="150dp"
                android:src="@drawable/ic_launcher_background"
                android:layout_centerHorizontal="true"
                android:layout_marginTop="15dp"
                />

片段类

public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        LayoutInflater lf = getActivity().getLayoutInflater();
        view =  lf.inflate(R.layout.fragment_profile,container,false);
        mContext = getActivity();

        mProfilePhoto = (CircleImageView) view.findViewById(R.id.profile_photo);
        view.findViewById(R.id.profile_photo).setOnClickListener(this);

        return view;

    }

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.profile_photo:
                Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                try {
                    i.putExtra("return-data", true);
                    startActivityForResult(
                            Intent.createChooser(i, "Select Picture"), 0);
                }catch (ActivityNotFoundException ex){
                    ex.printStackTrace();
                }
                break;
        }

    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode==0 && resultCode == Activity.RESULT_OK){
            try {
                Bundle bundle = data.getExtras();
                Bitmap bitmap = bundle.getParcelable("return-data");
                mProfilePhoto.setImageBitmap(bitmap);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

实现此片段的活动具有onActivityResult，而只是在super（）处进行了调用

还可以在加载图像后自动调整其大小以适合圆形图像视图？如果没有，我该怎么办？预先感谢

Answer 1

将Glide与ImageView一起使用，而不是CircleImageView，并将Bitmap设置为如下所示的圆圈

第1步。添加依赖项

repositories {
    mavenCentral()
    google()
}

dependencies {
    implementation 'com.github.bumptech.glide:glide:4.9.0'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.9.0'
}

第2步。从数据中获取位图并置于图像视图中

Bitmap photo = (Bitmap) data.getExtras().get("return-data");
ByteArrayOutputStream stream = new ByteArrayOutputStream();
photo.compress(Bitmap.CompressFormat.PNG, 100, stream);
Glide.with(this)
        .load(stream.toByteArray())
        .apply(RequestOptions.circleCropTransform())
        .into(imageView);

全部

Answer 2

似乎我遇到了这个问题。我正在将您的库用于我的所有项目。

if (requestCode != RESULT_CANCELED){
            if (requestCode == GALLERY_REQUEST){
                Uri path = data.getData();
                try {
                    photo = MediaStore.Images.Media.getBitmap(getContext().getContentResolver(), path);
                } catch (IOException e) {
                    e.printStackTrace();
                }
                mProfilePhoto.setImageBitmap(photo);}}

Answer 3

为什么要尝试将数据打包获取？尝试将其获取为uri并将其设置为circularimageview。

 @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.profile_photo:
                Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                    startActivityForResult(
                            Intent.createChooser(i, "Select Picture"), 0);   
                break;
        }

    }

  @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if(requestCode==0 && resultCode == Activity.RESULT_OK&&data!=null){
               Uri uri=data.getData();
                mProfilePhoto.setImageURI(uri);

        }
    }

从图库中获取图像并设置为CircleImageView

3 个答案: