Android获取图片Uri/path

ANDROID 4.4以上:

@TargetApi(19)private void handleImageOnKitKat(Intent data){    String imagePath = null;    Uri uri = data.getData();    if(DocumentsContract.isDocumentUri(this,uri)){        String docID = DocumentsContract.getDocumentId(uri);        if("com.android.providers.media.documents".equals(uri.getAuthority()))        {            String id = docID.split(":")[1];            String selection = MediaStore.Images.Media._ID + "=" +id;            imagePath = getImagePath(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,selection);            }        else if("com.android.providers.downloads.documents".equals(uri.getAuthority())){            Uri contentUri = ContentUris.withAppendedId(Uri.parse("content://downloads/public_downloads"),Long.valueOf(docID));            imagePath = getImagePath(contentUri,null);            }        }        else if("content".equalsIgnoreCase(uri.getScheme()))            {            imagePath = getImagePath(uri,null);             }        else if ("file".equalsIgnoreCase(uri.getScheme())){            imagePath = uri.getPath();         }        displayImage(imagePath);    }

4.4以下

private void handleImageBeforeKitKat(Intent data){    Uri uri = data.getData();    String imagePath = getImagePath(uri,null);    displayImage(imagePath);    }

getimagePath函数

private String getImagePath(Uri uri, String selection){    String path = null;    Cursor cursor = getContentResolver().query(uri,null,selection,null,null);    if(cursor != null){        path = cursor.getString(cursor.getColumnIndex(MediaStore.Images.Media.DATA));    }    cursor.close();    return path;}

display函数

private void displayImage(String imagePath){    if(imagePath != null){        BitmapFactory.Options options = new BitmapFactory.Options();        options.inSampleSize = 2;        Bitmap bitmap = BitmapFactory.decodeFile(imagePath,options);        showview.setImageBitmap(bitmap);    }    else{        Toast.makeText(this,"failed to get image",Toast.LENGTH_SHORT).show();    }    }}

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