Question

我正在寻找一种从意图中打开Android图库应用程序的方法。

我不想返回图片，而只是打开图库以允许用户使用它，就像他们从启动器（View pictures/folders）中选择它一样。

我尝试过以下操作：

Intent intent = new Intent();  
intent.setAction(android.content.Intent.ACTION_GET_CONTENT);  
intent.setType("image/*");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

然而，这会导致应用程序在我选择图片后关闭（我知道这是因为ACTION_GET_CONTENT），但我需要打开图库。

任何帮助都会很棒。

由于

Answer 1

我希望这会对你有所帮助。这段代码适合我。

Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
 startActivityForResult(i, RESULT_LOAD_IMAGE);

ResultCode用于将所选图像更新为图库视图

if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
            && null != data) {
        Uri selectedImage = data.getData();
        String[] filePathColumn = { MediaStore.Images.Media.DATA };
        Cursor cursor = getContentResolver().query(selectedImage,
                filePathColumn, null, null, null);

        if (cursor == null || cursor.getCount() < 1) {
            return; // no cursor or no record. DO YOUR ERROR HANDLING
        }

        cursor.moveToFirst();
        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);

        if(columnIndex < 0) // no column index
            return; // DO YOUR ERROR HANDLING

        String picturePath = cursor.getString(columnIndex);

        cursor.close(); // close cursor

        photo = decodeFilePath(picturePath.toString());

        List<Bitmap> bitmap = new ArrayList<Bitmap>();
        bitmap.add(photo);
        ImageAdapter imageAdapter = new ImageAdapter(
                AddIncidentScreen.this, bitmap);
        imageAdapter.notifyDataSetChanged();
        newTagImage.setAdapter(imageAdapter);
    }

Answer 2

这就是你需要的：

ACTION_VIEW

将您的代码更改为：

Intent intent = new Intent();  
intent.setAction(android.content.Intent.ACTION_VIEW);  
intent.setType("image/*");
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);

Answer 3

您可以使用以下意图打开图库：

public static final int RESULT_GALLERY = 0;

Intent galleryIntent = new Intent(
                    Intent.ACTION_PICK,
                    android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(galleryIntent , RESULT_GALLERY );

如果你想获得结果URI或做任何其他事情，请使用：

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
    case QuestionEntryView.RESULT_GALLERY :
        if (null != data) {
            imageUri = data.getData();
            //Do whatever that you desire here. or leave this blank

        }
        break;
    default:
        break;
    }
}

在Android 4.0 +上测试

Answer 4

以下内容可用于活动或片段。
```
 private File mCurrentPhoto;
```

添加权限

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"  />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="18" />

添加意图以打开＆＃34;图像选择器＆＃34;和＆＃34;照片捕获＆＃34;

//A system-based view to select photos.
private void dispatchPhotoSelectionIntent() {
Intent galleryIntent = new Intent(Intent.ACTION_PICK,
        android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
this.startActivityForResult(galleryIntent, REQUEST_IMAGE_SELECTOR);
}



    //Open system camera application to capture a photo.
    private void dispatchTakePictureIntent() {
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(App.Instance.getPackageManager()) != null) {
    try {
        createImageFile();
    } catch (IOException ex) {
        // Error occurred while creating the File
    }
    // Continue only if the File was successfully created
    if (mCurrentPhoto != null) {
        takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(mCurrentPhoto));
        startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);
    }
}
}

获取照片时添加处理。

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_IMAGE_SELECTOR:
    if (resultCode == Activity.RESULT_OK && data != null && data.getData() != null) {
        String[] filePathColumn = { MediaStore.Images.Media.DATA };
        Cursor cursor = App.Instance.getContentResolver().query(data.getData(), filePathColumn, null, null, null);
        if (cursor == null || cursor.getCount() < 1) {
            mCurrentPhoto = null;
            break;
        }
        cursor.moveToFirst();
        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        if(columnIndex < 0) { // no column index
            mCurrentPhoto = null;
            break;
        }
        mCurrentPhoto = new File(cursor.getString(columnIndex));
        cursor.close();
    } else {
        mCurrentPhoto = null;
    }
    break;
case REQUEST_IMAGE_CAPTURE:
    if (resultCode != Activity.RESULT_OK) {
        mCurrentPhoto = null;
    }
    break;
}
if (mCurrentPhoto != null) {
    ImageView imageView = (ImageView) [parent].findViewById(R.id.loaded_iv);
    Picasso.with(App.Instance).load(mCurrentPhoto).into(imageView);
}
super.onActivityResult(requestCode, resultCode, data);
}

Answer 5

由于您不希望返回结果，请尝试遵循简单的代码。

Intent i=new Intent(Intent.ACTION_PICK);
            i.setType("image/*");
            startActivity(i);

从Android Intent打开图库应用程序

5 个答案: