private View.OnClickListener mChoosePhotoAlbumListener = new OnClickListener() { @Override public void onClick(View v) { Intent intent = new Intent(); //根据版本号不同使用不同的Action if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { intent.setAction(Intent.ACTION_GET_CONTENT); } else { intent.setAction(Intent.ACTION_OPEN_DOCUMENT); intent.addCategory(Intent.CATEGORY_OPENABLE); } intent.setType("image/*"); intent.putExtra("crop", "true"); intent.putExtra("scale", "true"); intent.putExtra("scaleUpIfNeeded", true); //部分机型没有设置该参数截图会有黑边 intent.putExtra("aspectX", 10); intent.putExtra("aspectY", mAspectY); // outputX outputY 是裁剪图片宽高 intent.putExtra("outputX", mWidth); intent.putExtra("outputY", mHeight); // 输出路径 intent.putExtra("output", Uri.fromFile(new File(mThemePath))); startActivityForResult(intent, REQUEST_CODE_SELECT_FROM_ALBUM); } };?
处理方法1:
@Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { if (resultCode == RESULT_OK) { switch (requestCode) { case REQUEST_CODE_SELECT_FROM_ALBUM: if(data != null) { Uri imageUri; if(data.getData() != null){ imageUri = data.getData(); } else { imageUri = Uri.parse(mThemePath); } //TODO 自定义时id 为-1, final String thumbPath = DirectoryBuilder.DIR_THEME + mUserId + "_thumb" + ".png"; SessionTheme sessionTheme = new SessionTheme(); sessionTheme.theme_id = -1; sessionTheme.userId = mUserId; sessionTheme.name = "user_defined"; sessionTheme.token = mUserId + "_defined_" + System.currentTimeMillis(); sessionTheme.isInnerResource = false; sessionTheme.iconPath = thumbPath; if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) { sessionTheme.themePath = imageUri.getPath(); } else { String wholeID = DocumentsContract.getDocumentId(imageUri); if(!TextUtils.isEmpty(wholeID) && wholeID.contains(":")) { // 获得资源唯一ID String id = wholeID.split(":")[1]; // 定义索引字段 String[] column = { MediaStore.Images.Media.DATA }; String sel = MediaStore.Images.Media._ID + "=?"; Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, column, sel, new String[] { id }, null); int columnIndex = cursor.getColumnIndex(column[0]); if (cursor.moveToFirst()) { // DATA字段就是本地资源的全路径 String filePath = cursor.getString(columnIndex); sessionTheme.themePath = filePath; } // 切记要关闭游标 cursor.close(); } } sessionTheme.status = SessionTheme.THEME_STATE_USER_DEFINED; mReturnTheme = sessionTheme; //异步更新 预览ICON saveIconTask(imageUri, thumbPath); } break; default: break; } } }?
处理方法2:
/** * Get a file path from a Uri. This will get the the path for Storage Access * Framework Documents, as well as the _data field for the MediaStore and * other file-based ContentProviders. * * @param context The context. * @param uri The Uri to query. * @author paulburke */public static String getPath(final Context context, final Uri uri) { final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT; // DocumentProvider if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) { // ExternalStorageProvider if (isExternalStorageDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; if ("primary".equalsIgnoreCase(type)) { return Environment.getExternalStorageDirectory() + "/" + split[1]; } // TODO handle non-primary volumes } // DownloadsProvider else if (isDownloadsDocument(uri)) { final String id = DocumentsContract.getDocumentId(uri); final Uri contentUri = ContentUris.withAppendedId( Uri.parse("content://downloads/public_downloads"), Long.valueOf(id)); return getDataColumn(context, contentUri, null, null); } // MediaProvider else if (isMediaDocument(uri)) { final String docId = DocumentsContract.getDocumentId(uri); final String[] split = docId.split(":"); final String type = split[0]; Uri contentUri = null; if ("image".equals(type)) { contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI; } else if ("video".equals(type)) { contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI; } else if ("audio".equals(type)) { contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI; } final String selection = "_id=?"; final String[] selectionArgs = new String[] { split[1] }; return getDataColumn(context, contentUri, selection, selectionArgs); } } // MediaStore (and general) else if ("content".equalsIgnoreCase(uri.getScheme())) { return getDataColumn(context, uri, null, null); } // File else if ("file".equalsIgnoreCase(uri.getScheme())) { return uri.getPath(); } return null;}/** * Get the value of the data column for this Uri. This is useful for * MediaStore Uris, and other file-based ContentProviders. * * @param context The context. * @param uri The Uri to query. * @param selection (Optional) Filter used in the query. * @param selectionArgs (Optional) Selection arguments used in the query. * @return The value of the _data column, which is typically a file path. */public static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) { Cursor cursor = null; final String column = "_data"; final String[] projection = { column }; try { cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null); if (cursor != null && cursor.moveToFirst()) { final int column_index = cursor.getColumnIndexOrThrow(column); return cursor.getString(column_index); } } finally { if (cursor != null) cursor.close(); } return null;}/** * @param uri The Uri to check. * @return Whether the Uri authority is ExternalStorageProvider. */public static boolean isExternalStorageDocument(Uri uri) { return "com.android.externalstorage.documents".equals(uri.getAuthority());}/** * @param uri The Uri to check. * @return Whether the Uri authority is DownloadsProvider. */public static boolean isDownloadsDocument(Uri uri) { return "com.android.providers.downloads.documents".equals(uri.getAuthority());}/** * @param uri The Uri to check. * @return Whether the Uri authority is MediaProvider. */public static boolean isMediaDocument(Uri uri) { return "com.android.providers.media.documents".equals(uri.getAuthority());}?