下面列出了com.facebook.react.bridge.ReadableMap#keySetIterator ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
@ReactMethod
public void getConfigStringMap(ReadableMap keyAndDefault, Promise promise) {
try {
WritableMap map = Arguments.createMap();
if (keyAndDefault != null) {
ReadableMapKeySetIterator iterator = keyAndDefault.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
String defaultValue = keyAndDefault.getString(key);
map.putString(key, FlurryConfig.getInstance().getString(key, defaultValue));
}
}
promise.resolve(map);
} catch (IllegalViewOperationException e) {
promise.reject("Flurry.getConfigString", e);
}
}
public static HashMap<String, Object> readableMapToHashMap(ReadableMap readableMap) {
if (readableMap == null) {
return null;
}
HashMap map = new HashMap<String, Object>();
ReadableMapKeySetIterator keySetIterator = readableMap.keySetIterator();
while (keySetIterator.hasNextKey()) {
String key = keySetIterator.nextKey();
ReadableType type = readableMap.getType(key);
switch(type) {
case String:
map.put(key, readableMap.getString(key));
break;
case Map:
HashMap<String, Object> attributes = new RCTConvert().readableMapToHashMap(readableMap.getMap(key));
map.put(key, attributes);
break;
default:
// do nothing
}
}
return map;
}
public static HashMap<String, Object> readableMapToHashMap(ReadableMap readableMap) {
if (readableMap == null) {
return null;
}
HashMap map = new HashMap<String, Object>();
ReadableMapKeySetIterator keySetIterator = readableMap.keySetIterator();
while (keySetIterator.hasNextKey()) {
String key = keySetIterator.nextKey();
ReadableType type = readableMap.getType(key);
switch(type) {
case String:
map.put(key, readableMap.getString(key));
break;
case Map:
HashMap<String, Object> attributes = new RCTConvert().readableMapToHashMap(readableMap.getMap(key));
map.put(key, attributes);
break;
default:
// do nothing
}
}
return map;
}
/**
* toStringMap converts a {@link ReadableMap} into a HashMap.
*
* @param readableMap The ReadableMap to be conveted.
* @return A HashMap containing the data that was in the ReadableMap.
* @see 'Adapted from https://github.com/artemyarulin/react-native-eval/blob/master/android/src/main/java/com/evaluator/react/ConversionUtil.java'
*/
public static Map<String, String> toStringMap(@Nullable ReadableMap readableMap) {
Map<String, String> result = new HashMap<>();
if (readableMap == null)
return result;
com.facebook.react.bridge.ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
result.put(key, readableMap.getString(key));
}
return result;
}
public static Map<String, Object> recursivelyDeconstructReadableMap(ReadableMap readableMap) {
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
Map<String, Object> deconstructedMap = new HashMap<>();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType type = readableMap.getType(key);
switch (type) {
case Null:
deconstructedMap.put(key, null);
break;
case Boolean:
deconstructedMap.put(key, readableMap.getBoolean(key));
break;
case Number:
deconstructedMap.put(key, readableMap.getDouble(key));
break;
case String:
deconstructedMap.put(key, readableMap.getString(key));
break;
case Map:
deconstructedMap.put(key, FirestackUtils.recursivelyDeconstructReadableMap(readableMap.getMap(key)));
break;
case Array:
deconstructedMap.put(key, FirestackUtils.recursivelyDeconstructReadableArray(readableMap.getArray(key)));
break;
default:
throw new IllegalArgumentException("Could not convert object with key: " + key + ".");
}
}
return deconstructedMap;
}
private Map<String, Object> recursivelyDeconstructReadableMap(ReadableMap readableMap) {
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
Map<String, Object> deconstructedMap = new HashMap<>();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType type = readableMap.getType(key);
switch (type) {
case Null:
deconstructedMap.put(key, null);
break;
case Boolean:
deconstructedMap.put(key, readableMap.getBoolean(key));
break;
case Number:
deconstructedMap.put(key, readableMap.getDouble(key));
break;
case String:
deconstructedMap.put(key, readableMap.getString(key));
break;
case Map:
deconstructedMap.put(key, recursivelyDeconstructReadableMap(readableMap.getMap(key)));
break;
case Array:
deconstructedMap.put(key, recursivelyDeconstructReadableArray(readableMap.getArray(key)));
break;
default:
throw new IllegalArgumentException("Could not convert object with key: " + key + ".");
}
}
return deconstructedMap;
}
@ReactMethod
public void configureProvider(
final String providerName,
final ReadableMap params,
@Nullable final Callback onComplete
) {
Log.i(TAG, "configureProvider for " + providerName);
// Save callback url for later
String callbackUrlStr = params.getString("callback_url");
_callbackUrls.add(callbackUrlStr);
Log.d(TAG, "Added callback url " + callbackUrlStr + " for providler " + providerName);
// Keep configuration map
HashMap<String, Object> cfg = new HashMap<String,Object>();
ReadableMapKeySetIterator iterator = params.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType readableType = params.getType(key);
switch(readableType) {
case String:
String val = params.getString(key);
// String escapedVal = Uri.encode(val);
cfg.put(key, val);
break;
default:
throw new IllegalArgumentException("Could not read object with key: " + key);
}
}
_configuration.put(providerName, cfg);
onComplete.invoke(null, true);
}
public static JSONObject convertMapToJson(ReadableMap readableMap) throws JSONException {
JSONObject object = new JSONObject();
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
switch (readableMap.getType(key)) {
case Null:
object.put(key, JSONObject.NULL);
break;
case Boolean:
object.put(key, readableMap.getBoolean(key));
break;
case Number:
object.put(key, readableMap.getDouble(key));
break;
case String:
object.put(key, readableMap.getString(key));
break;
case Map:
object.put(key, convertMapToJson(readableMap.getMap(key)));
break;
case Array:
object.put(key, convertArrayToJson(readableMap.getArray(key)));
break;
}
}
return object;
}
public static Map<String, Object> toMap(ReadableMap readableMap) {
Map<String, Object> map = new HashMap<>();
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType type = readableMap.getType(key);
switch (type) {
case Null:
map.put(key, null);
break;
case Boolean:
map.put(key, readableMap.getBoolean(key));
break;
case Number:
map.put(key, readableMap.getDouble(key));
break;
case String:
map.put(key, readableMap.getString(key));
break;
case Map:
map.put(key, MapUtil.toMap(readableMap.getMap(key)));
break;
case Array:
map.put(key, ArrayUtil.toArray(readableMap.getArray(key)));
break;
}
}
return map;
}
public static HashMap<String, String> readableMapToHashMap(@Nullable ReadableMap readableMap) {
HashMap<String, String> hashMap = new HashMap<>();
if (readableMap != null) {
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
while (iterator.hasNextKey()) {
String nextKey = iterator.nextKey();
hashMap.put(nextKey, readableMap.getString(nextKey));
}
}
return hashMap;
}
public static JSONObject toJSONObject(ReadableMap readableMap) throws JSONException {
JSONObject jsonObject = new JSONObject();
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType type = readableMap.getType(key);
switch (type) {
case Null:
jsonObject.put(key, null);
break;
case Boolean:
jsonObject.put(key, readableMap.getBoolean(key));
break;
case Number:
jsonObject.put(key, readableMap.getDouble(key));
break;
case String:
jsonObject.put(key, readableMap.getString(key));
break;
case Map:
jsonObject.put(key, MapUtil.toJSONObject(readableMap.getMap(key)));
break;
case Array:
jsonObject.put(key, ArrayUtil.toJSONArray(readableMap.getArray(key)));
break;
}
}
return jsonObject;
}
private static void formatIntent(Intent intent, ReadableMap configuration) {
if (configuration == null) {
return;
}
ReadableMapKeySetIterator it = configuration.keySetIterator();
while (it.hasNextKey()) {
String key = it.nextKey();
switch (configuration.getType(key)) {
case Null:
intent.putExtra(key, (String) null);
break;
case String:
intent.putExtra(key, configuration.getString(key));
break;
case Number:
intent.putExtra(key, configuration.getInt(key));
break;
case Boolean:
intent.putExtra(key, configuration.getBoolean(key));
break;
case Map:
intent.putExtra(key, (Serializable) formatMap(configuration.getMap(key)));
break;
default:
Log.w(TAG, "Unable to put extra information for intent: unknown type \""+ configuration.getType(key) +"\"");
break;
}
}
}
public JSONObject parse(ReadableMap map) {
try {
ReadableMapKeySetIterator it = map.keySetIterator();
JSONObject result = new JSONObject();
while (it.hasNextKey()) {
String key = it.nextKey();
switch (map.getType(key)) {
case String:
result.put(key, map.getString(key));
break;
case Number:
result.put(key, parseNumber(map, key));
break;
case Boolean:
result.put(key, map.getBoolean(key));
break;
case Array:
result.put(key, parse(map.getArray(key)));
break;
case Map:
result.put(key, parse(map.getMap(key)));
break;
default:
break;
}
}
return result;
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
public DownloadManager.Request createRequest(String url, ReadableMap headers, ReadableMap requestConfig) {
String downloadTitle = requestConfig.getString("downloadTitle");
String downloadDescription = requestConfig.getString("downloadTitle");
String saveAsName = requestConfig.getString("saveAsName");
Boolean external = requestConfig.getBoolean("external");
String external_path = requestConfig.getString("path");
Boolean allowedInRoaming = requestConfig.getBoolean("allowedInRoaming");
Boolean allowedInMetered = requestConfig.getBoolean("allowedInMetered");
Boolean showInDownloads = requestConfig.getBoolean("showInDownloads");
Uri downloadUri = Uri.parse(url);
DownloadManager.Request request = new DownloadManager.Request(downloadUri);
ReadableMapKeySetIterator iterator = headers.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
request.addRequestHeader(key, headers.getString(key));
}
if(external){
request.setDestinationInExternalPublicDir(external_path, saveAsName);
}else{
request.setDestinationInExternalFilesDir(context, Environment.DIRECTORY_DOWNLOADS, saveAsName);
}
request.setTitle(downloadTitle);
request.setDescription(downloadDescription);
request.setAllowedOverRoaming(allowedInRoaming);
request.setAllowedOverMetered(allowedInMetered);
request.setVisibleInDownloadsUi(showInDownloads);
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE | DownloadManager.Request.NETWORK_WIFI);
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
return request;
}
public static JSONObject readableMapToJson(ReadableMap readableMap) {
JSONObject jsonObject = new JSONObject();
if (readableMap == null) {
return null;
}
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
if (!iterator.hasNextKey()) {
return null;
}
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType readableType = readableMap.getType(key);
try {
switch (readableType) {
case Null:
jsonObject.put(key, null);
break;
case Boolean:
jsonObject.put(key, readableMap.getBoolean(key));
break;
case Number:
// Can be int or double.
jsonObject.put(key, readableMap.getInt(key));
break;
case String:
jsonObject.put(key, readableMap.getString(key));
break;
case Map:
jsonObject.put(key, readableMapToJson(readableMap.getMap(key)));
break;
case Array:
jsonObject.put(key, readableMap.getArray(key));
default:
// Do nothing and fail silently
}
} catch (JSONException ex) {
// Do nothing and fail silently
}
}
return jsonObject;
}
@ReactMethod
public void connect(ReadableMap params) {
if (BuildConfig.DEBUG) {
Log.d(TAG, "connect params: "+params);
}
WritableMap errParams = Arguments.createMap();
if (accessToken == null) {
errParams.putString("err", "Invalid access token");
eventManager.sendEvent(EVENT_DEVICE_NOT_READY, errParams);
return;
}
if (params == null) {
errParams.putString("err", "Invalid parameters");
eventManager.sendEvent(EVENT_CONNECTION_DID_DISCONNECT, errParams);
return;
} else if (!params.hasKey("To")) {
errParams.putString("err", "Invalid To parameter");
eventManager.sendEvent(EVENT_CONNECTION_DID_DISCONNECT, errParams);
return;
}
toNumber = params.getString("To");
if (params.hasKey("ToName")) {
toName = params.getString("ToName");
}
twiMLParams.clear();
ReadableMapKeySetIterator iterator = params.keySetIterator();
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType readableType = params.getType(key);
switch (readableType) {
case Null:
twiMLParams.put(key, "");
break;
case Boolean:
twiMLParams.put(key, String.valueOf(params.getBoolean(key)));
break;
case Number:
// Can be int or double.
twiMLParams.put(key, String.valueOf(params.getDouble(key)));
break;
case String:
twiMLParams.put(key, params.getString(key));
break;
default:
Log.d(TAG, "Could not convert with key: " + key + ".");
break;
}
}
activeCall = Voice.call(getReactApplicationContext(), accessToken, twiMLParams, callListener);
}
/**
* Converts a react native readable map into a JSON object.
*
* @param readableMap map to convert to JSON Object
* @return JSON Object that contains the readable map properties
*/
@Nullable
public static JSONObject readableMapToJson(ReadableMap readableMap) {
JSONObject jsonObject = new JSONObject();
if (readableMap == null) {
return null;
}
ReadableMapKeySetIterator iterator = readableMap.keySetIterator();
if (!iterator.hasNextKey()) {
return null;
}
while (iterator.hasNextKey()) {
String key = iterator.nextKey();
ReadableType readableType = readableMap.getType(key);
try {
switch (readableType) {
case Null:
jsonObject.put(key, null);
break;
case Boolean:
jsonObject.put(key, readableMap.getBoolean(key));
break;
case Number:
// Can be int or double.
jsonObject.put(key, readableMap.getInt(key));
break;
case String:
jsonObject.put(key, readableMap.getString(key));
break;
case Map:
jsonObject.put(key, readableMapToJson(readableMap.getMap(key)));
break;
case Array:
jsonObject.put(key, readableMap.getArray(key));
default:
// Do nothing and fail silently
}
} catch (JSONException ex) {
// Do nothing and fail silently
}
}
return jsonObject;
}
@ReactProp(name = "source")
public void setSource(WebView view, @Nullable ReadableMap source) {
if (source != null) {
if (source.hasKey("html")) {
String html = source.getString("html");
if (source.hasKey("baseUrl")) {
view.loadDataWithBaseURL(
source.getString("baseUrl"), html, HTML_MIME_TYPE, HTML_ENCODING, null);
} else {
view.loadData(html, HTML_MIME_TYPE, HTML_ENCODING);
}
return;
}
if (source.hasKey("uri")) {
String url = source.getString("uri");
String previousUrl = view.getUrl();
if (previousUrl != null && previousUrl.equals(url)) {
return;
}
if (source.hasKey("method")) {
String method = source.getString("method");
if (method.equals(HTTP_METHOD_POST)) {
byte[] postData = null;
if (source.hasKey("body")) {
String body = source.getString("body");
try {
postData = body.getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
postData = body.getBytes();
}
}
if (postData == null) {
postData = new byte[0];
}
view.postUrl(url, postData);
return;
}
}
HashMap<String, String> headerMap = new HashMap<>();
if (source.hasKey("headers")) {
ReadableMap headers = source.getMap("headers");
ReadableMapKeySetIterator iter = headers.keySetIterator();
while (iter.hasNextKey()) {
String key = iter.nextKey();
if ("user-agent".equals(key.toLowerCase(Locale.ENGLISH))) {
if (view.getSettings() != null) {
view.getSettings().setUserAgentString(headers.getString(key));
}
} else {
headerMap.put(key, headers.getString(key));
}
}
}
view.loadUrl(url, headerMap);
return;
}
}
view.loadUrl(BLANK_URL);
}
@ReactProp(name = "source")
public void setSource(WebView view, @Nullable ReadableMap source) {
if (source != null) {
if (source.hasKey("html")) {
String html = source.getString("html");
if (source.hasKey("baseUrl")) {
view.loadDataWithBaseURL(
source.getString("baseUrl"), html, HTML_MIME_TYPE, HTML_ENCODING, null);
} else {
view.loadData(html, HTML_MIME_TYPE, HTML_ENCODING);
}
return;
}
if (source.hasKey("uri")) {
String url = source.getString("uri");
String previousUrl = view.getUrl();
if (previousUrl != null && previousUrl.equals(url)) {
return;
}
if (source.hasKey("method")) {
String method = source.getString("method");
if (method.equals(HTTP_METHOD_POST)) {
byte[] postData = null;
if (source.hasKey("body")) {
String body = source.getString("body");
try {
postData = body.getBytes("UTF-8");
} catch (UnsupportedEncodingException e) {
postData = body.getBytes();
}
}
if (postData == null) {
postData = new byte[0];
}
view.postUrl(url, postData);
return;
}
}
HashMap<String, String> headerMap = new HashMap<>();
if (source.hasKey("headers")) {
ReadableMap headers = source.getMap("headers");
ReadableMapKeySetIterator iter = headers.keySetIterator();
while (iter.hasNextKey()) {
String key = iter.nextKey();
if ("user-agent".equals(key.toLowerCase(Locale.ENGLISH))) {
if (view.getSettings() != null) {
view.getSettings().setUserAgentString(headers.getString(key));
}
} else {
headerMap.put(key, headers.getString(key));
}
}
}
view.loadUrl(url, headerMap);
return;
}
}
view.loadUrl(BLANK_URL);
}
public void setSource(ReadableMap params) {
mParams = params;
@Nullable Uri mUri = null;
String source = params.hasKey("uri") ? params.getString("uri") : null;
String thumbnail = params.hasKey("thumbnail") ? params.getString("thumbnail") : null;
ReadableMap headers = params.hasKey("headers") ? params.getMap("headers") : null;
//handle base64
if (source.startsWith("data:image/png;base64,")){
Glide
.with(this.getContext())
.load(Base64.decode(source.replaceAll("data:image\\/.*;base64,", ""), Base64.DEFAULT))
.into(this)
;
return;
}
boolean useStorageFile = false ;
// handle bundled app resources
try {
mUri = Uri.parse(source);
// Verify scheme is set, so that relative uri (used by static resources) are not handled.
if (mUri.getScheme() == null) {
mUri = null;
} else if(
!mUri.getScheme().equals("http") &&
!mUri.getScheme().equals("https")
){
useStorageFile = true ;
if (!mInitialized) {
this.setImageURI(mUri);
}
}
} catch (Exception e) {
// ignore malformed uri, then attempt to extract resource ID.
}
if (mUri == null) {
mUri = mResourceDrawableIdHelper.getResourceDrawableUri(
this.getContext(),
source
);
Glide
.with(this.getContext())
.load(mUri)
.into(this);
} else if (useStorageFile) {
Glide
.with(this.getContext())
.load(mUri)
.into(this);
} else {
// Handle an http / https address
RequestListener listener = this.getRequestListener();
LazyHeaders.Builder lazyHeaders = new LazyHeaders.Builder();
Log.d("null headers", String.valueOf(headers != null));
if(headers != null){
ReadableMapKeySetIterator it = headers.keySetIterator();
Log.d("next headers", String.valueOf(it.hasNextKey()));
while(it.hasNextKey()){
String Key = it.nextKey();
lazyHeaders.addHeader(Key, headers.getString(Key));
}
}
Log.d("thing", mUri.toString());
DrawableRequestBuilder builder = Glide
.with(this.getContext())
.load(new GlideUrl(mUri.toString(), lazyHeaders.build()))
.listener(listener);
//set thumbnails
if(thumbnail != null) {
DrawableRequestBuilder<String> thumbnailRequest = Glide
.with(this.getContext())
.load(thumbnail);
builder = builder.thumbnail(thumbnailRequest);
}
builder.into(this);
}
this.setChangeListeners();
}