下面列出了android.util.JsonReader#beginArray ( ) 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。
private void populateComments() {
String url=String.format(Locale.US,COMMENT_API_URL,id);
try {
Response response=Global.getClient().newCall(new Request.Builder().url(url).build()).execute();
ResponseBody body=response.body();
if(body==null){response.close(); return;}
JsonReader reader=new JsonReader(new InputStreamReader(body.byteStream()));
reader.beginArray();
while(reader.hasNext())
comments.add(new Comment(reader));
reader.close();
response.close();
} catch (IOException e) {
e.printStackTrace();
}
}
List<AlternativePlaceId> readAltIdsArray(JsonReader reader) throws IOException {
List<AlternativePlaceId> altIds = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
String placeId = null;
PlaceScope scope = null;
reader.beginObject();
while (reader.hasNext()) {
switch (reader.nextName()) {
case "place_id":
placeId = reader.nextString();
break;
case "scope":
scope = readScope(reader);
break;
default:
reader.skipValue();
break;
}
}
reader.endObject();
altIds.add(new AlternativePlaceId(placeId, scope));
}
reader.endArray();
return altIds;
}
private void readSampleGroup(JsonReader reader, List<SampleGroup> groups) throws IOException {
String groupName = "";
ArrayList<Sample> samples = new ArrayList<>();
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
switch (name) {
case "name":
groupName = reader.nextString();
break;
case "samples":
reader.beginArray();
while (reader.hasNext()) {
samples.add(readEntry(reader, false));
}
reader.endArray();
break;
case "offline_samples":
reader.beginArray();
while (reader.hasNext()){
samples.add(readOfflineEntry(reader));
}
reader.endArray();
break;
case "_comment":
reader.nextString(); // Ignore.
break;
default:
throw new ParserException("Unsupported name: " + name);
}
}
reader.endObject();
SampleGroup group = getGroup(groupName, groups);
group.samples.addAll(samples);
}
public static List<Object> jsonStrToList(final String s) {
final ArrayList<Object> list = new ArrayList<>();
final JsonReader reader = new JsonReader(new StringReader(s));
try {
reader.beginArray();
while (reader.hasNext()) {
reader.beginObject();
while (reader.hasNext()) {
final String name = reader.nextName();
if (name.equals(INTEGER_CLASS_NAME)) {
list.add(reader.nextInt());
} else if (name.equals(STRING_CLASS_NAME)) {
list.add(reader.nextString());
} else {
Log.w(TAG, "Invalid name: " + name);
reader.skipValue();
}
}
reader.endObject();
}
reader.endArray();
return list;
} catch (final IOException e) {
} finally {
close(reader);
}
return Collections.<Object>emptyList();
}
@Override
public void setCoordinatesFromJSONStream(JsonReader reader, int crs) throws IOException {
setCRS(crs);
reader.beginArray();
while (reader.hasNext()){
GeoPoint pt = new GeoPoint();
pt.setCoordinatesFromJSONStream(reader, crs);
mGeometries.add(pt);
}
reader.endArray();
}
List<String> readTypesArray(JsonReader reader) throws IOException {
List<String> types = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
types.add(reader.nextString());
}
reader.endArray();
return types;
}
protected void readFeatures(JsonReader reader, List<Feature> features) throws IOException, IllegalStateException, NumberFormatException, OutOfMemoryError {
reader.beginArray();
while (reader.hasNext()) {
final Feature feature = NGWUtil.readNGWFeature(reader, getFields(), mCRS);
if (feature.getGeometry() == null || !feature.getGeometry().isValid())
continue;
features.add(feature);
}
reader.endArray();
}
private static void extractSite(final JsonReader reader, final UrlListCallback callback) throws IOException {
reader.beginObject();
final String siteOwner = reader.nextName();
{
reader.beginObject();
while (reader.hasNext()) {
// We can get the site name using reader.nextName() here:
reader.skipValue();
JsonToken nextToken = reader.peek();
if (nextToken.name().equals("STRING")) {
// Sometimes there's a "dnt" entry, with unspecified purpose.
reader.skipValue();
} else {
reader.beginArray();
while (reader.hasNext()) {
final String blockURL = reader.nextString();
callback.put(blockURL, siteOwner);
}
reader.endArray();
}
}
reader.endObject();
}
reader.endObject();
}
@Override
public void setCoordinatesFromJSONStream(JsonReader reader, int crs) throws IOException {
setCRS(crs);
reader.beginArray();
while (reader.hasNext()){
GeoPolygon polygon = new GeoPolygon();
polygon.setCoordinatesFromJSONStream(reader, crs);
mGeometries.add(polygon);
}
reader.endArray();
}
private static Vector<ZCashTransactionOutput> readTxOutputs(JsonReader reader, String txid) throws IOException {
Vector<ZCashTransactionOutput> vout = new Vector<>();
//reader.nextName();
reader.beginArray();
while (reader.hasNext()) {
ZCashTransactionOutput out = readTxSingleOutput(reader);
out.txid = txid;
vout.add(out);
}
reader.endArray();
return vout;
}
private static Vector<ZCashTransactionOutput> readTxInputs(JsonReader reader) throws IOException {
Vector<ZCashTransactionOutput> vin = new Vector<>();
reader.beginArray();
while (reader.hasNext()) {
vin.add(readTxSingleInput(reader));
}
reader.endArray();
return vin;
}
private static List<ZCashTransactionDetails_taddr> readTxArray(JsonReader reader) throws IOException {
List<ZCashTransactionDetails_taddr> txs = new LinkedList<>();
reader.beginArray();
while (reader.hasNext()) {
txs.add(readTx(reader));
}
reader.endArray();
return txs;
}
@Override
public void setCoordinatesFromJSONStream(JsonReader reader, int crs) throws IOException {
setCRS(crs);
reader.beginArray();
while (reader.hasNext()){
GeoLineString line = new GeoLineString();
line.setCoordinatesFromJSONStream(reader, crs);
mGeometries.add(line);
}
reader.endArray();
}
List<MatchedSubstring> readMatchedSubstringsArray(JsonReader reader) throws IOException {
List<MatchedSubstring> matchedSubstrings = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
int length = -1;
int offset = -1;
reader.beginObject();
while (reader.hasNext()) {
switch (reader.nextName()) {
case "length":
length = reader.nextInt();
break;
case "offset":
offset = reader.nextInt();
break;
default:
reader.skipValue();
break;
}
}
reader.endObject();
matchedSubstrings.add(new MatchedSubstring(length, offset));
}
reader.endArray();
return matchedSubstrings;
}
private static void extractSite(final JsonReader reader, final UrlListCallback callback) throws IOException {
reader.beginObject();
final String siteOwner = reader.nextName();
{
reader.beginObject();
while (reader.hasNext()) {
// We can get the site name using reader.nextName() here:
reader.skipValue();
JsonToken nextToken = reader.peek();
if (nextToken.name().equals("STRING")) {
// Sometimes there's a "dnt" entry, with unspecified purpose.
reader.skipValue();
} else {
reader.beginArray();
while (reader.hasNext()) {
final String blockURL = reader.nextString();
callback.put(blockURL, siteOwner);
}
reader.endArray();
}
}
reader.endObject();
}
reader.endObject();
}
List<DescriptionTerm> readDescriptionTermsArray(JsonReader reader) throws IOException {
List<DescriptionTerm> terms = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
int offset = -1;
String value = null;
reader.beginObject();
while (reader.hasNext()) {
switch (reader.nextName()) {
case "offset":
offset = reader.nextInt();
break;
case "value":
value = reader.nextString();
break;
default:
reader.skipValue();
break;
}
}
reader.endObject();
terms.add(new DescriptionTerm(offset, value));
}
reader.endArray();
return terms;
}
private Sample readEntry(JsonReader reader, boolean insidePlaylist) throws IOException {
String sampleName = null;
String uri = null;
String extension = null;
UUID drmUuid = null;
String drmLicenseUrl = null;
String[] drmKeyRequestProperties = null;
boolean preferExtensionDecoders = false;
ArrayList<UriSample> playlistSamples = null;
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
switch (name) {
case "name":
sampleName = reader.nextString();
break;
case "uri":
uri = reader.nextString();
break;
case "extension":
extension = reader.nextString();
break;
case "drm_scheme":
Assertions.checkState(!insidePlaylist, "Invalid attribute on nested item: drm_scheme");
drmUuid = getDrmUuid(reader.nextString());
break;
case "drm_license_url":
Assertions.checkState(!insidePlaylist,
"Invalid attribute on nested item: drm_license_url");
drmLicenseUrl = reader.nextString();
break;
case "drm_key_request_properties":
Assertions.checkState(!insidePlaylist,
"Invalid attribute on nested item: drm_key_request_properties");
ArrayList<String> drmKeyRequestPropertiesList = new ArrayList<>();
reader.beginObject();
while (reader.hasNext()) {
drmKeyRequestPropertiesList.add(reader.nextName());
drmKeyRequestPropertiesList.add(reader.nextString());
}
reader.endObject();
drmKeyRequestProperties = drmKeyRequestPropertiesList.toArray(new String[0]);
break;
case "prefer_extension_decoders":
Assertions.checkState(!insidePlaylist,
"Invalid attribute on nested item: prefer_extension_decoders");
preferExtensionDecoders = reader.nextBoolean();
break;
case "playlist":
Assertions.checkState(!insidePlaylist, "Invalid nesting of playlists");
playlistSamples = new ArrayList<>();
reader.beginArray();
while (reader.hasNext()) {
playlistSamples.add((UriSample) readEntry(reader, true));
}
reader.endArray();
break;
default:
throw new ParserException("Unsupported attribute name: " + name);
}
}
reader.endObject();
if (playlistSamples != null) {
UriSample[] playlistSamplesArray = playlistSamples.toArray(
new UriSample[playlistSamples.size()]);
return new PlaylistSample(sampleName, drmUuid, drmLicenseUrl, drmKeyRequestProperties,
preferExtensionDecoders, playlistSamplesArray);
} else {
return new UriSample(sampleName, drmUuid, drmLicenseUrl, drmKeyRequestProperties,
preferExtensionDecoders, uri, extension);
}
}
private List<BackgroundLocation> readLocationsArray(JsonReader reader) throws IOException {
List<BackgroundLocation> locations = new ArrayList<BackgroundLocation>();
reader.beginArray();
while (reader.hasNext()) {
BackgroundLocation l = new BackgroundLocation();
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if (name.equals("id")) {
l.setLocationId(reader.nextLong());
} else if (name.equals("time")) {
l.setTime(reader.nextLong());
} else if (name.equals("latitude")) {
l.setLatitude(reader.nextDouble());
} else if (name.equals("longitude")) {
l.setLongitude(reader.nextDouble());
} else if (name.equals("accuracy")) {
l.setAccuracy((float)reader.nextDouble());
} else if (name.equals("speed")) {
l.setSpeed((float)reader.nextDouble());
} else if (name.equals("bearing")) {
l.setBearing((float)reader.nextDouble());
} else if (name.equals("altitude")) {
l.setAltitude(reader.nextDouble());
} else if (name.equals("radius")) {
JsonToken token = reader.peek();
if (token != JsonToken.NULL) {
l.setRadius((float)reader.nextDouble());
} else {
reader.skipValue();
}
} else if (name.equals("provider")) {
l.setProvider(reader.nextString());
} else if (name.equals("locationProvider")) {
l.setLocationProvider(reader.nextInt());
} else {
reader.skipValue();
}
}
reader.endObject();
locations.add(l);
}
reader.endArray();
return locations;
}
private static ZCashTransactionOutput readTxSingleOutput(JsonReader reader) throws IOException {
ZCashTransactionOutput output = new ZCashTransactionOutput();
reader.beginObject(); //output
while (reader.peek() != JsonToken.END_OBJECT) {
String name = reader.nextName();
switch (name) {
case N:
output.n = reader.nextLong();
break;
case SCRIPTPUBKEY:
reader.beginObject();
while (reader.peek() != JsonToken.END_OBJECT) {
name = reader.nextName();
switch (name) {
case ADDRESSES:
reader.beginArray();
while (reader.hasNext()) {
output.address = reader.nextString();
}
reader.endArray();
break;
case ASM:
output.asm = reader.nextString();
break;
case HEX:
output.hex = reader.nextString();
break;
case REQSIGS:
output.regSigs = reader.nextLong();
break;
case TYPE:
output.type = reader.nextString();
break;
default:
reader.skipValue();
}
}
reader.endObject();
break;
case VALUE:
output.value = Double.valueOf(reader.nextDouble() * 1e8).longValue();
break;
case VALUEZAT:
output.value = reader.nextLong();
break;
default:
reader.skipValue();
}
}
reader.endObject(); //output end
return output;
}
public static void fillLayerFromGeoJSONStream(VectorLayer layer, InputStream in, int srs, IProgressor progressor) throws IOException, NGException {
int streamSize = in.available();
if(null != progressor){
progressor.setIndeterminate(false);
progressor.setMax(streamSize);
progressor.setMessage(layer.getContext().getString(R.string.start_fill_layer) + " " + layer.getName());
}
SQLiteDatabase db = null;
if(layer.getFields() != null && layer.getFields().isEmpty()){
db = DatabaseContext.getDbForLayer(layer);
}
JsonReader reader = new JsonReader(new InputStreamReader(in, "UTF-8"));
boolean isWGS84 = srs == GeoConstants.CRS_WGS84;
long counter = 0;
reader.beginObject();
while (reader.hasNext()) {
String name = reader.nextName();
if(name.equals(GeoConstants.GEOJSON_TYPE_FEATURES)){
reader.beginArray();
while (reader.hasNext()) {
Feature feature = readGeoJSONFeature(reader, layer, isWGS84);
if (null != feature) {
if(layer.getFields() != null && !layer.getFields().isEmpty()){
if (feature.getGeometry() != null)
layer.create(feature.getGeometry().getType(), feature.getFields());
db = DatabaseContext.getDbForLayer(layer);
}
if(feature.getGeometry() != null) {
layer.createFeatureBatch(feature, db);
if(null != progressor){
if (progressor.isCanceled()) {
layer.save();
return;
}
progressor.setValue(streamSize - in.available());
progressor.setMessage(layer.getContext().getString(R.string.process_features) + ": " + counter++);
}
}
}
}
reader.endArray();
}
else {
reader.skipValue();
}
}
reader.endObject();
reader.close();
//if(null != db)
// db.close(); // return pragma to init
layer.save();
}