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来自庄稼意图的Android完整图像

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我正在Android手机上使用相机拍摄图像 . 拍摄完图像后，我将完整图像作为uri传递给裁剪意图（com.android.camera.action.CROP） . 但是，当裁剪意图返回时，它将返回缩略图大小的parcelable . 我试图将相机中的图像保存在文件中并发送文件的uri，但它不会在裁剪意图中打开图像 . 如何从发回的包裹中获取我在裁剪意图中裁剪的全尺寸图像？这是我正在使用的一些代码：

public void onActivityResult(int requestCode, int resultCode,
        Intent intent) {
    if (resultCode != Activity.RESULT_CANCELED) {
        Uri uri = null;
        switch (requestCode) {
        case FILE_SELECT_CODE:
            if (intent.getData() != null) {
                uri = intent.getData();
                cropSelectedPicture(uri);
            }
            break;
        case PICTURE_SELECT_CODE:
            uri = intent.getData();
            if (uri == null) {
                Bundle bundle = intent.getExtras();
                Bitmap photo = null;
                if (bundle != null) {
                    photo = bundle.getParcelable("data");
                }
                finishChangeProfilePicture(photo);
            } else {
                cropSelectedPicture(uri);
            }
            break;
        case FILE_CROP_CODE:
            Bundle extras = intent.getExtras();
            Bitmap thePic = extras.getParcelable("data");
            uri = extras.getParcelable("uri");
            finishChangeProfilePicture(thePic);
            break;
        }
    }
    super.onActivityResult(requestCode, resultCode, intent);
}

public void showCamera() {
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    intent.putExtra("crop", "true");
    intent.putExtra("outputX", pictureWidth);
    intent.putExtra("outputY", pictureHeight);
    intent.putExtra("aspectX", pictureWidth);
    intent.putExtra("aspectY", pictureHeight);
    intent.putExtra("scale", true);
    intent.putExtra("return-data", true);
    try {
        cordova.startActivityForResult(
                this, Intent.createChooser(intent, "Take Picture"),
                PICTURE_SELECT_CODE);
    } catch (android.content.ActivityNotFoundException ex) {
        // Potentially direct the user to the Market with a Dialog
        Toast.makeText(context, "Please install a Camera application.", 
                Toast.LENGTH_SHORT).show();
    }
}

public void cropSelectedPicture(Uri uri) {
    Intent intent = new Intent("com.android.camera.action.CROP");
    intent.setDataAndType(uri, "image/*");
    intent.putExtra("crop", "true");
    intent.putExtra("outputX", pictureWidth);
    intent.putExtra("outputY", pictureHeight);
    intent.putExtra("aspectX", pictureWidth);
    intent.putExtra("aspectY", pictureHeight);
    intent.putExtra("scale", true);
    intent.putExtra("return-data", true);

    PackageManager packageManager = context.getPackageManager();
    List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);
    if (activities.size() > 0) {
        for (int i = 0; i < activities.size(); i++) {
            String label = (String) activities.get(i).loadLabel(packageManager);
            if (label.equals("Crop picture")) {
                ActivityInfo activity = activities.get(i).activityInfo;
                ComponentName name = new ComponentName (activity.applicationInfo.packageName,
                                                        activity.name);
                intent.setComponent(name);
            }
        }
    }

    try {
        cordova.startActivityForResult(this, intent, FILE_CROP_CODE);
    } catch (android.content.ActivityNotFoundException ex) {
        Toast.makeText(context, "Please install a Cropping program", Toast.LENGTH_SHORT).show();
    }
}
android image crop

1 回答

  • 1

    好吧，所以我要做的就是从相机意图中保存uri，然后在出现裁剪意图时将图像保存到该意图中 . 我之前尝试过这个，但它是应用程序的内部文件，而不是内容解析器 . （公平警告：这是一个cordova项目，而不是原生的android项目，所以如果你遇到Media.getBitmap行的问题，那么删除cordova.getActivity（）部分，这应该使它工作）这是我改变了：

    public void onActivityResult(int requestCode, int resultCode,
        Intent intent) {
    if (resultCode != Activity.RESULT_CANCELED) {
        switch (requestCode) {
        case FILE_SELECT_CODE:
            if (intent.getData() != null) {
                uri = intent.getData();
                cropSelectedPicture();
            }
            break;
        case PICTURE_SELECT_CODE:
            uri = intent.getData();
            if (uri == null) {
                Bundle bundle = intent.getExtras();
                Bitmap photo = null;
                if (bundle != null) {
                    photo = bundle.getParcelable("data");
                }
                finishChangeProfilePicture(photo);
            } else {
                cropSelectedPicture();
            }
            break;
        case FILE_CROP_CODE:
            Bitmap theUriPic;
            try {
                theUriPic = Media.getBitmap(cordova.getActivity().getContentResolver(), uri);
                finishChangeProfilePicture(theUriPic);
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            break;
        }
    }
    super.onActivityResult(requestCode, resultCode, intent);
}

public void cropSelectedPicture() {
    Intent intent = new Intent("com.android.camera.action.CROP");
    intent.setDataAndType(uri, "image/*");
    intent.putExtra("crop", "true");
    intent.putExtra("outputX", pictureWidth);
    intent.putExtra("outputY", pictureHeight);
    intent.putExtra("aspectX", pictureWidth);
    intent.putExtra("aspectY", pictureHeight);
    intent.putExtra("scale", true);
    intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
    intent.putExtra("return-data", true);

    PackageManager packageManager = context.getPackageManager();
    List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);
    if (activities.size() > 0) {
        for (int i = 0; i < activities.size(); i++) {
            String label = (String) activities.get(i).loadLabel(packageManager);
            if (label.equals("Crop picture")) {
                ActivityInfo activity = activities.get(i).activityInfo;
                ComponentName name = new ComponentName (activity.applicationInfo.packageName,
                                                        activity.name);
                intent.setComponent(name);
            }
        }
    }

    try {
        cordova.startActivityForResult(this, intent, FILE_CROP_CODE);
    } catch (android.content.ActivityNotFoundException ex) {
        Toast.makeText(context, "Please install a Cropping program", Toast.LENGTH_SHORT).show();
    }
}
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