introduced RAW image format and ZIP-base64 result packaging algorithm

src/index.d.ts

@@ -23,9 +23,9 @@ declare module 'react-native-view-shot' {
          */
         height?: number;
         /**
-         * either png or jpg or webm (Android). Defaults to png.
+         * either png or jpg or webm (Android). Defaults to png. raw is a ARGB array of image pixels.
          */
-        format?: 'jpg' | 'png' | 'webm';
+        format?: 'jpg' | 'png' | 'webm' | 'raw';
         /**
          * the quality. 0.0 - 1.0 (default). (only available on lossy formats like jpg)
          */
@@ -36,8 +36,9 @@ declare module 'react-native-view-shot' {
          " - base64": encode as base64 and returns the raw string. Use only with small images as this may result of
          *   lags (the string is sent over the bridge). N.B. This is not a data uri, use data-uri instead.
          " - data-uri": same as base64 but also includes the Data URI scheme header.
+         " - zip-base64: compress data with zip deflate algorithm and than convert to base64 and return as a raw string."
          */
-        result?: 'tmpfile' | 'base64' | 'data-uri';
+        result?: 'tmpfile' | 'base64' | 'data-uri' | 'zip-base64';
         /**
          * if true and when view is a ScrollView, the "content container" height will be evaluated instead of the
          * container height.

src/index.js

@@ -8,9 +8,9 @@ const neverEndingPromise = new Promise(() => {});
 type Options = {
   width?: number,
   height?: number,
-  format: "png" | "jpg" | "webm",
+  format: "png" | "jpg" | "webm" | "raw",
   quality: number,
-  result: "tmpfile" | "base64" | "data-uri",
+  result: "tmpfile" | "base64" | "data-uri" | "zip-base64",
   snapshotContentContainer: boolean
 };
 
@@ -21,10 +21,12 @@ if (!RNViewShot) {
 }
 
 const acceptedFormats = ["png", "jpg"].concat(
-  Platform.OS === "android" ? ["webm"] : []
+  Platform.OS === "android" ? ["webm", "raw"] : []
 );
 
-const acceptedResults = ["tmpfile", "base64", "data-uri"];
+const acceptedResults = ["tmpfile", "base64", "data-uri"].concat(
+  Platform.OS === "android" ? ["zip-base64"] : []
+);
 
 const defaultOptions = {
   format: "png",
@@ -70,13 +72,13 @@ function validateOptions(
   if (acceptedFormats.indexOf(options.format) === -1) {
     options.format = defaultOptions.format;
     errors.push(
-      "option format is not in valid formats: " + acceptedFormats.join(" | ")
+      "option format '" + options.format + "' is not in valid formats: " + acceptedFormats.join(" | ")
     );
   }
   if (acceptedResults.indexOf(options.result) === -1) {
     options.result = defaultOptions.result;
     errors.push(
-      "option result is not in valid formats: " + acceptedResults.join(" | ")
+      "option result '" + options.result  + "' is not in valid formats: " + acceptedResults.join(" | ")
     );
   }
   return { options, errors };