文章目录
我现在一个activity中有三个multiple fragments ，我现在采集我第三个 fragments信息
在这个fragments 上我想启动相机或者图库，看下面代码
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public Intent getImageIntent() { // Camera. final List<Intent> cameraIntents = new ArrayList<Intent>(); final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE); final PackageManager packageManager = context.getPackageManager(); final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0); for (ResolveInfo res : listCam) { final String packageName = res.activityInfo.packageName; final Intent intent = new Intent(captureIntent); intent.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name)); intent.setPackage(packageName); cameraIntents.add(intent); } // Filesystem. final Intent galleryIntent = new Intent(); galleryIntent.setType("image/*"); galleryIntent.setAction(Intent.ACTION_GET_CONTENT); // Chooser of filesystem options. final Intent chooserIntent = Intent.createChooser(galleryIntent, "Select Source"); // Add the camera options. chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[] {})); // Calling activity should exeecute: // startActivityForResult(chooserIntent, 1); return chooserIntent;}After that the onActivityResult executes:private void handleSmallCameraPhoto(Intent intent) { Bundle extras = intent.getExtras(); mProductBitmap = (Bitmap) extras.get("data"); imgProduct.setImageBitmap(mProductBitmap);} |
其中 mProductBitmap 是一个Bitmap类型的全局变量，imgProduct 是一个已经初始化的 ImageView ，
我现在有如下问题：
1、相机选项强制关闭了app.并在fragment 中报错了nullpointException
2、图册选项不报错，但是不显示任何图片
3、有的时候 在执行完onActivityResult 之后Context 为null
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@Overridepublic void onActivityResult(int requestCode, int resultCode, Intent intent) { if (resultCode == Activity.RESULT_OK) { handleSmallCameraPhoto(intent); } else { if (requestCode == 1) { InputStream stream = null; if (intent == null) { System.out.println("DATA IS NULL.."); } else { try { if (mProductBitmap != null) { mProductBitmap.recycle(); } stream = getActivity().getContentResolver().openInputStream( intent.getData()); mProductBitmap = BitmapFactory.decodeStream(stream); System.out.println(mProductBitmap); System.out.println("Setting image result"); imgProduct.setImageBitmap(mProductBitmap); } catch (FileNotFoundException e) { e.printStackTrace(); } finally { if (stream != null) try { stream.close(); } catch (IOException e2) { e2.printStackTrace(); } } } } } |
处理方法
你的图片已经报错到了 PATH_TO_SAVE 地址中
你需要在你的onActivityResult 方法中做么做
File file = new File(PATH_TO_SAVE);
Bitmap bmp = BitmapFactory.decodeFile(file.getPath());
原文地址：http://www.itmmd.com/201411/158.html
该文章由 萌萌的IT人 整理发布,转载须标明出处。