I am a Beginner and I want to calculate 4 values and get area but I keep getting different
errors my code is not good so please give advices
Like:
Class 'String' has no instance method '/'.
Receiver: "56"
Tried calling: /(2)
I am taking values from text fields
I want them to be calculated in double.
This is My Code
class SideController extends GetxController{
final SideAController = TextEditingController();
final SideBController = TextEditingController();
final SideCController = TextEditingController();
final SideDController = TextEditingController();
var Result=''.obs;
var sidea;
var sideb;
var sidec;
var sided;
var length;
var width;
var area = 0.obs;
calculateheight() {
if (SideAController.text != null ||
SideBController.text != null ||
SideCController.text != null ||
SideDController.text != null) {
sidea = SideAController.text;
sideb = SideBController.text;
sidec = SideCController.text;
sided = SideDController.text;
length = ((sidea) + (sidec)) / 2;
width = ((sideb) + (sided)) / 2;
area = (length * width);
area.value == Result;
return area;
} else {
Get.snackbar("Fields Empty", "Fill all Fields");
}
}
}
I tried to calculate 4 values and show my result is string
but keep getting errors
String values cannot be added or divided. You have to convert the String values to double first.
sidea = double.parse(SideAController.text);
sideb = double.parse(SideBController.text);
sidec = double.parse(SideCController.text);
sided = double.parse(SideDController.text);
length = ((sidea) + (sidec)) / 2;
width = ((sideb) + (sided)) / 2;
area.value = (length * width);
// area.value == Result;
return area;
If you want to return area as String, use return area.toString();
I think there are already variables here. I write down what I already know.
For example, there is Result=''.obs;
class SideController extends GetxController {
final SideAController = TextEditingController();
final SideBController = TextEditingController();
final SideCController = TextEditingController();
final SideDController = TextEditingController();
var sidea;
var sideb;
var sidec;
var sided;
var length;
var width;
RxDouble area = 0.0.obs;
dynamic calculateheight() {
if (SideAController.text.isNotEmpty &&
SideBController.text.isNotEmpty &&
SideCController.text.isNotEmpty &&
SideDController.text.isNotEmpty) {
sidea = double.parse(SideAController.text);
sideb = double.parse(SideBController.text);
sidec = double.parse(SideCController.text);
sided = double.parse(SideDController.text);
length = (sidea + sidec) / 2;
width = (sideb + sided) / 2;
area.value = length * width;
return area.value.toString();
} else {
Get.snackbar("Fields Empty", "Fill all Fields");
return ' error';
}
}
}
I checked the code I posted, the code I posted should work for you.
Optionally, calculateheight() function can return String, double, etc.
Related
How to compare app version in android
I got latest version code and current version code , but the problem is
current version is 1.0
and latest version is 1.0.0
so how to compare that float value in android
I have written a small Android library for comparing version numbers: https://github.com/G00fY2/version-compare
What it basically does is this:
public int compareVersions(String versionA, String versionB) {
String[] versionTokensA = versionA.split("\\.");
String[] versionTokensB = versionB.split("\\.");
List<Integer> versionNumbersA = new ArrayList<>();
List<Integer> versionNumbersB = new ArrayList<>();
for (String versionToken : versionTokensA) {
versionNumbersA.add(Integer.parseInt(versionToken));
}
for (String versionToken : versionTokensB) {
versionNumbersB.add(Integer.parseInt(versionToken));
}
final int versionASize = versionNumbersA.size();
final int versionBSize = versionNumbersB.size();
int maxSize = Math.max(versionASize, versionBSize);
for (int i = 0; i < maxSize; i++) {
if ((i < versionASize ? versionNumbersA.get(i) : 0) > (i < versionBSize ? versionNumbersB.get(i) : 0)) {
return 1;
} else if ((i < versionASize ? versionNumbersA.get(i) : 0) < (i < versionBSize ? versionNumbersB.get(i) : 0)) {
return -1;
}
}
return 0;
}
This snippet doesn't offer any error checks or handling. Beside that my library also supports suffixes like "1.2-rc" > "1.2-beta".
I am a bit late to the party but I have a great solution for all of you!
1. Use this class:
public class VersionComparator implements Comparator {
public boolean equals(Object o1, Object o2) {
return compare(o1, o2) == 0;
}
public int compare(Object o1, Object o2) {
String version1 = (String) o1;
String version2 = (String) o2;
VersionTokenizer tokenizer1 = new VersionTokenizer(version1);
VersionTokenizer tokenizer2 = new VersionTokenizer(version2);
int number1, number2;
String suffix1, suffix2;
while (tokenizer1.MoveNext()) {
if (!tokenizer2.MoveNext()) {
do {
number1 = tokenizer1.getNumber();
suffix1 = tokenizer1.getSuffix();
if (number1 != 0 || suffix1.length() != 0) {
// Version one is longer than number two, and non-zero
return 1;
}
}
while (tokenizer1.MoveNext());
// Version one is longer than version two, but zero
return 0;
}
number1 = tokenizer1.getNumber();
suffix1 = tokenizer1.getSuffix();
number2 = tokenizer2.getNumber();
suffix2 = tokenizer2.getSuffix();
if (number1 < number2) {
// Number one is less than number two
return -1;
}
if (number1 > number2) {
// Number one is greater than number two
return 1;
}
boolean empty1 = suffix1.length() == 0;
boolean empty2 = suffix2.length() == 0;
if (empty1 && empty2) continue; // No suffixes
if (empty1) return 1; // First suffix is empty (1.2 > 1.2b)
if (empty2) return -1; // Second suffix is empty (1.2a < 1.2)
// Lexical comparison of suffixes
int result = suffix1.compareTo(suffix2);
if (result != 0) return result;
}
if (tokenizer2.MoveNext()) {
do {
number2 = tokenizer2.getNumber();
suffix2 = tokenizer2.getSuffix();
if (number2 != 0 || suffix2.length() != 0) {
// Version one is longer than version two, and non-zero
return -1;
}
}
while (tokenizer2.MoveNext());
// Version two is longer than version one, but zero
return 0;
}
return 0;
}
// VersionTokenizer.java
public static class VersionTokenizer {
private final String _versionString;
private final int _length;
private int _position;
private int _number;
private String _suffix;
private boolean _hasValue;
VersionTokenizer(String versionString) {
if (versionString == null)
throw new IllegalArgumentException("versionString is null");
_versionString = versionString;
_length = versionString.length();
}
public int getNumber() {
return _number;
}
String getSuffix() {
return _suffix;
}
public boolean hasValue() {
return _hasValue;
}
boolean MoveNext() {
_number = 0;
_suffix = "";
_hasValue = false;
// No more characters
if (_position >= _length)
return false;
_hasValue = true;
while (_position < _length) {
char c = _versionString.charAt(_position);
if (c < '0' || c > '9') break;
_number = _number * 10 + (c - '0');
_position++;
}
int suffixStart = _position;
while (_position < _length) {
char c = _versionString.charAt(_position);
if (c == '.') break;
_position++;
}
_suffix = _versionString.substring(suffixStart, _position);
if (_position < _length) _position++;
return true;
}
}
}
2. create this function
private fun isNewVersionAvailable(currentVersion: String, latestVersion: String): Boolean {
val versionComparator = VersionComparator()
val result: Int = versionComparator.compare(currentVersion, latestVersion)
var op = "=="
if (result < 0) op = "<"
if (result > 0) op = ">"
System.out.printf("%s %s %s\n", currentVersion, op, latestVersion)
return if (op == ">" || op == "==") {
false
} else op == "<"
}
3. and just call it by
e.g. isNewVersionAvailable("1.2.8","1.2.9") where 1.2.8 is your current version here and 1.2.9 is the latest version, which returns true!
Why overcomplicate this so much?
Just scale the major, minor, patch version and you have it covered:
fun getAppVersionFromString(version: String): Int { // "2.3.5"
val versions = version.split(".") // [2, 3, 5]
val major = versions[0].toIntOrDefault(0) * 10000 // 20000
val minor = versions[1].toIntOrDefault(0) * 1000 // 3000
val patch = versions[2].toIntOrDefault(0) * 100 // 500
return major + minor + patch // 2350
}
That way when you compare e.g 9.10.10 with 10.0.0 the second one is greater.
Use the following method to compare the versions number:
Convert float to String first.
public static int versionCompare(String str1, String str2) {
String[] vals1 = str1.split("\\.");
String[] vals2 = str2.split("\\.");
int i = 0;
// set index to first non-equal ordinal or length of shortest version string
while (i < vals1.length && i < vals2.length && vals1[i].equals(vals2[i])) {
i++;
}
// compare first non-equal ordinal number
if (i < vals1.length && i < vals2.length) {
int diff = Integer.valueOf(vals1[i]).compareTo(Integer.valueOf(vals2[i]));
return Integer.signum(diff);
}
// the strings are equal or one string is a substring of the other
// e.g. "1.2.3" = "1.2.3" or "1.2.3" < "1.2.3.4"
return Integer.signum(vals1.length - vals2.length);
}
Refer the following SO question : Efficient way to compare version strings in Java
I'm developing an android app with Xamarin that uploads file to the server. My server is asp.net based and is hosted by azure. Xamarin throws this error when the code tries to write the file to the server directory. The code I'm using to post the file to the server is as follows:
public async Task<HttpResponseMessage> UploadFile(byte[] file)
{
videoThumbName = Guid.NewGuid().ToString();
var progress = new System.Net.Http.Handlers.ProgressMessageHandler();
progress.HttpSendProgress += progress_HttpSendProgress;
using (var client = HttpClientFactory.Create(progress))
{
client.BaseAddress = new Uri(GlobalVariables.host);
// Set the Accept header for BSON.
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(
new MediaTypeWithQualityHeaderValue("application/bson"));
var request = new uploadFileModel { data = file, dateCreated = DateTime.Now, fileName = fileName, username = loggedUser, VideoThumbName = videoThumbName};
// POST using the BSON formatter.
MediaTypeFormatter bsonFormatter = new BsonMediaTypeFormatter();
var m = client.MaxResponseContentBufferSize;
var result = await client.PostAsync("api/media/upload", request, bsonFormatter);
return result.EnsureSuccessStatusCode();
}
}
I've tried using a try catch block and the weird thing is that the exception is caught even after the file has been written to the path and I get the 500 internal server error. So far every file I tried to upload was save to the path but I can't figure out why is error occurring.
My server side code looks like the following:
[HttpPost]
[Route("upload")]
public async Task<HttpResponseMessage> Upload(uploadFileModel model)
{
var result = new HttpResponseMessage(HttpStatusCode.OK);
if (ModelState.IsValid)
{
string thumbname = "";
string resizedthumbname = Guid.NewGuid() + "_yt.jpg";
string FfmpegPath = Encoding_Settings.FFMPEGPATH;
string tempFilePath = Path.Combine(HttpContext.Current.Server.MapPath("~/tempuploads"), model.fileName);
string pathToFiles = HttpContext.Current.Server.MapPath("~/tempuploads");
string pathToThumbs = HttpContext.Current.Server.MapPath("~/contents/member/" + model.username + "/thumbs");
string finalPath = HttpContext.Current.Server.MapPath("~/contents/member/" + model.username + "/flv");
string resizedthumb = Path.Combine(pathToThumbs, resizedthumbname);
var outputPathVid = new MediaFile { Filename = Path.Combine(finalPath, model.fileName) };
var inputPathVid = new MediaFile { Filename = Path.Combine(pathToFiles, model.fileName) };
int maxWidth = 380;
int maxHeight = 360;
var namewithoutext = Path.GetFileNameWithoutExtension(Path.Combine(pathToFiles, model.fileName));
thumbname = model.VideoThumbName;
string oldthumbpath = Path.Combine(pathToThumbs, thumbname);
var fileName = model.fileName;
try
{
File.WriteAllBytes(tempFilePath, model.data);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
if (model.fileName.Contains("audio"))
{
File.WriteAllBytes(Path.Combine(finalPath, model.fileName), model.data);
string audio_thumb = "mic_thumb.jpg";
string destination = Path.Combine(pathToThumbs, audio_thumb);
string source = Path.Combine(pathToFiles, audio_thumb);
if (!System.IO.File.Exists(destination))
{
System.IO.File.Copy(source, destination, true);
}
Video_Struct vd = new Video_Struct();
vd.CategoryID = 0; // store categoryname or term instead of category id
vd.Categories = "";
vd.UserName = model.username;
vd.Title = "";
vd.Description = "";
vd.Tags = "";
vd.OriginalVideoFileName = model.fileName;
vd.VideoFileName = model.fileName;
vd.ThumbFileName = "mic_thumb.jpg";
vd.isPrivate = 0;
vd.AuthKey = "";
vd.isEnabled = 1;
vd.Response_VideoID = 0; // video responses
vd.isResponse = 0;
vd.isPublished = 1;
vd.isReviewed = 1;
vd.Thumb_Url = "none";
//vd.FLV_Url = flv_url;
vd.Embed_Script = "";
vd.isExternal = 0; // website own video, 1: embed video
vd.Type = 0;
vd.YoutubeID = "";
vd.isTagsreViewed = 1;
vd.Mode = 0; // filter videos based on website sections
long videoid = VideoBLL.Process_Info(vd, false);
}
The exception doesn't reveal much for me to understand the issue. Strangely I don't get any errors when I'm sending request to the local server. Any idea what might be wrong here?
Edit:
The exception no longer occurring when I get the internal server error at this line of my code using (var engine = new Engine()) This is a library I'm trying to use to encode a media file. If everything works on the local server then why doesn't it on the live server :/
using (var engine = new Engine())
{
engine.GetMetadata(inputPathVid);
// Saves the frame located on the 15th second of the video.
var outputPathThumb = new MediaFile { Filename = Path.Combine(pathToThumbs, thumbname+".jpg") };
var options = new ConversionOptions { Seek = TimeSpan.FromSeconds(0), CustomHeight = 360, CustomWidth = 380 };
engine.GetThumbnail(inputPathVid, outputPathThumb, options);
}
Image image = Image.FromFile(Path.Combine(pathToThumbs, thumbname+".jpg"));
//var ratioX = (double)maxWidth / image.Width;
//var ratioY = (double)maxHeight / image.Height;
//var ratio = Math.Min(ratioX, ratioY);
var newWidth = (int)(maxWidth);
var newHeight = (int)(maxHeight);
var newImage = new Bitmap(newWidth, newHeight);
Graphics.FromImage(newImage).DrawImage(image, 0, 0, newWidth, newHeight);
Bitmap bmp = new Bitmap(newImage);
bmp.Save(Path.Combine(pathToThumbs, thumbname+"_resized.jpg"));
//File.Delete(Path.Combine(pathToThumbs, thumbname));
using (var engine = new Engine())
{
var conversionOptions = new ConversionOptions
{
VideoSize = VideoSize.Hd720,
AudioSampleRate = AudioSampleRate.Hz44100,
VideoAspectRatio = VideoAspectRatio.Default
};
engine.GetMetadata(inputPathVid);
engine.Convert(inputPathVid, outputPathVid, conversionOptions);
}
File.Delete(tempFilePath);
Video_Struct vd = new Video_Struct();
vd.CategoryID = 0; // store categoryname or term instead of category id
vd.Categories = "";
vd.UserName = model.username;
vd.Title = "";
vd.Description = "";
vd.Tags = "";
vd.Duration = inputPathVid.Metadata.Duration.ToString();
vd.Duration_Sec = Convert.ToInt32(inputPathVid.Metadata.Duration.Seconds.ToString());
vd.OriginalVideoFileName = model.fileName;
vd.VideoFileName = model.fileName;
vd.ThumbFileName = thumbname+"_resized.jpg";
vd.isPrivate = 0;
vd.AuthKey = "";
vd.isEnabled = 1;
vd.Response_VideoID = 0; // video responses
vd.isResponse = 0;
vd.isPublished = 1;
vd.isReviewed = 1;
vd.Thumb_Url = "none";
//vd.FLV_Url = flv_url;
vd.Embed_Script = "";
vd.isExternal = 0; // website own video, 1: embed video
vd.Type = 0;
vd.YoutubeID = "";
vd.isTagsreViewed = 1;
vd.Mode = 0; // filter videos based on website sections
//vd.ContentLength = f_contentlength;
vd.GalleryID = 0;
long videoid = VideoBLL.Process_Info(vd, false);
}`enter code here`
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Please be advised I am a total novice at Android development, and have only progressed as far as "Hello world".
I don't actually want to build a QR code scanner, I would rather use a third party component, but I need an app that will scan a QR code, display some data from the code, and send some data to a web service.
Please can someone give me a real beginner's outline on the process and structure U should use in my application. I am an experienced C# developer, so the actual Java coding won't be a problem, and I'm certainly not asking how to do that, just how to set up the basic app architecture and process flow, e.g. how to show a dialogue, contact a web service, and use a third party component.
What I need is to scan a QR code, extract some text code from it, send those codes to a web service.
ZXing is a pretty good library which you can integrate in your application.Refer this class CaptureActivity
first you need zxing library for creating QR Codes and an installed application for reading QR codes like BarcodeScanner and a Encoder class like:
import java.util.Collection;
import java.util.HashSet;
import java.util.Hashtable;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.telephony.PhoneNumberUtils;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.ByteMatrix;
public final class QRCodeEncoder {
private static final int WHITE = 0xFFFFFFFF;
private static final int BLACK = 0xFF000000;
private int dimension = Integer.MIN_VALUE;
private String contents = null;
private String displayContents = null;
private String title = null;
private BarcodeFormat format = null;
private boolean encoded = false;
public QRCodeEncoder(String data, Bundle bundle, String type, String format, int dimension) {
this.dimension = dimension;
encoded = encodeContents(data, bundle, type, format);
}
public String getContents() {
return contents;
}
public String getDisplayContents() {
return displayContents;
}
public String getTitle() {
return title;
}
private boolean encodeContents(String data, Bundle bundle, String type, String formatString) {
// Default to QR_CODE if no format given.
format = null;
if (formatString != null) {
try {
format = BarcodeFormat.valueOf(formatString);
} catch (IllegalArgumentException iae) {
// Ignore it then
}
}
if (format == null || format == BarcodeFormat.QR_CODE) {
this.format = BarcodeFormat.QR_CODE;
encodeQRCodeContents(data, bundle, type);
} else if (data != null && data.length() > 0) {
contents = data;
displayContents = data;
title = "Text";
}
return contents != null && contents.length() > 0;
}
private void encodeQRCodeContents(String data, Bundle bundle, String type) {
if (type.equals(Contents.Type.TEXT)) {
if (data != null && data.length() > 0) {
contents = data;
displayContents = data;
title = "Text";
}
} else if (type.equals(Contents.Type.EMAIL)) {
data = trim(data);
if (data != null) {
contents = "mailto:" + data;
displayContents = data;
title = "E-Mail";
}
} else if (type.equals(Contents.Type.PHONE)) {
data = trim(data);
if (data != null) {
contents = "tel:" + data;
displayContents = PhoneNumberUtils.formatNumber(data);
title = "Phone";
}
} else if (type.equals(Contents.Type.SMS)) {
data = trim(data);
if (data != null) {
contents = "sms:" + data;
displayContents = PhoneNumberUtils.formatNumber(data);
title = "SMS";
}
} else if (type.equals(Contents.Type.CONTACT)) {
if (bundle != null) {
StringBuilder newContents = new StringBuilder(100);
StringBuilder newDisplayContents = new StringBuilder(100);
newContents.append("MECARD:");
String name = trim(bundle.getString(ContactsContract.Intents.Insert.NAME));
if (name != null) {
newContents.append("N:").append(escapeMECARD(name)).append(';');
newDisplayContents.append(name);
}
String address = trim(bundle.getString(ContactsContract.Intents.Insert.POSTAL));
if (address != null) {
newContents.append("ADR:").append(escapeMECARD(address)).append(';');
newDisplayContents.append('\n').append(address);
}
Collection<String> uniquePhones = new HashSet<String>(Contents.PHONE_KEYS.length);
for (int x = 0; x < Contents.PHONE_KEYS.length; x++) {
String phone = trim(bundle.getString(Contents.PHONE_KEYS[x]));
if (phone != null) {
uniquePhones.add(phone);
}
}
for (String phone : uniquePhones) {
newContents.append("TEL:").append(escapeMECARD(phone)).append(';');
newDisplayContents.append('\n').append(PhoneNumberUtils.formatNumber(phone));
}
Collection<String> uniqueEmails = new HashSet<String>(Contents.EMAIL_KEYS.length);
for (int x = 0; x < Contents.EMAIL_KEYS.length; x++) {
String email = trim(bundle.getString(Contents.EMAIL_KEYS[x]));
if (email != null) {
uniqueEmails.add(email);
}
}
for (String email : uniqueEmails) {
newContents.append("EMAIL:").append(escapeMECARD(email)).append(';');
newDisplayContents.append('\n').append(email);
}
String url = trim(bundle.getString(Contents.URL_KEY));
if (url != null) {
// escapeMECARD(url) -> wrong escape e.g. http\://zxing.google.com
newContents.append("URL:").append(url).append(';');
newDisplayContents.append('\n').append(url);
}
String note = trim(bundle.getString(Contents.NOTE_KEY));
if (note != null) {
newContents.append("NOTE:").append(escapeMECARD(note)).append(';');
newDisplayContents.append('\n').append(note);
}
// Make sure we've encoded at least one field.
if (newDisplayContents.length() > 0) {
newContents.append(';');
contents = newContents.toString();
displayContents = newDisplayContents.toString();
title = "Contact";
} else {
contents = null;
displayContents = null;
}
}
} else if (type.equals(Contents.Type.LOCATION)) {
if (bundle != null) {
// These must use Bundle.getFloat(), not getDouble(), it's part of the API.
float latitude = bundle.getFloat("LAT", Float.MAX_VALUE);
float longitude = bundle.getFloat("LONG", Float.MAX_VALUE);
if (latitude != Float.MAX_VALUE && longitude != Float.MAX_VALUE) {
contents = "geo:" + latitude + ',' + longitude;
displayContents = latitude + "," + longitude;
title = "Location";
}
}
}
}
public Bitmap encodeAsBitmap() throws WriterException {
if (!encoded) return null;
Hashtable hints = null;
String encoding = guessAppropriateEncoding(contents);
if (encoding != null) {
hints = new Hashtable();
hints.put(EncodeHintType.CHARACTER_SET, encoding);
}
MultiFormatWriter writer = new MultiFormatWriter();
ByteMatrix result =writer.encode(contents, format, dimension, dimension, hints);
int width = result.getWidth();
int height =result.getHeight();
int[] pixels = new int[width * height];
// All are 0, or black, by default
for (int y = 0; y < height; y++) {
int offset = y * width;
for (int x = 0; x < width; x++) {
if(result.get(x, y)== 0)
{
pixels[offset + x] = BLACK ;
}
else
pixels[offset + x] = WHITE ;
}
}
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
return bitmap;
}
private static String guessAppropriateEncoding(CharSequence contents) {
// Very crude at the moment
for (int i = 0; i < contents.length(); i++) {
if (contents.charAt(i) > 0xFF) { return "UTF-8"; }
}
return null;
}
private static String trim(String s) {
if (s == null) { return null; }
String result = s.trim();
return result.length() == 0 ? null : result;
}
private static String escapeMECARD(String input) {
if (input == null || (input.indexOf(':') < 0 && input.indexOf(';') < 0)) { return input; }
int length = input.length();
StringBuilder result = new StringBuilder(length);
for (int i = 0; i < length; i++) {
char c = input.charAt(i);
if (c == ':' || c == ';') {
result.append('\\');
}
result.append(c);
}
return result.toString();
}
}
hope this help you:)
You can also consider using manateework sdk which is very fast, cost effective. I has SDK available for mobile applications which supports different platform ie. iOS, Android etc and code symbology. Pl. refer to https://manateeworks.com/ for more details on this sdk
I'm developing an app in FlashDevelop, using Haxe and OpenFl
When I test my app in flash target, it works fine. But when I compile for android, it comes up with this error during the compilation:
./src/ReaderView2.cpp: In member function 'virtual Void ReaderView2_obj::setZoom()':
./src/ReaderView2.cpp:653: error: base operand of '->' has non-pointer type 'String'
Build halted with errors (haxelib.exe).
...Which is obviously something to do with cpp, which I'm not really an expert.
Does any body know what the error means?
Here's the setZooom function: (the whole file is quite large)
public function setZoom()
{
hideOptions();
while (numChildren > 0)
{
Main.remove(getChildAt(0));
}
if (image != null) if (image.parent != null) image.parent.removeChild(image);
images = new Array();
field = new TextField();
var fieldFont = Assets.getFont("fonts/Kreon-Regular.ttf");
var format:TextFormat = new TextFormat(fieldFont.fontName, currentZoom, 0x4F4F4F);
format.align = TextFormatAlign.LEFT;
field.defaultTextFormat = format;
field.embedFonts = true;
field.text = fullText;
field.selectable = false;
field.wordWrap = true;
field.border = false;
field.autoSize = TextFieldAutoSize.LEFT;
field.width = displayWidth;
//field.x = 0;
//split string into words
var allParas:Array<String> = fullText.split("\r\n");
var words:Array<String>;
var fields:Array<TextField> = new Array();
var tempField:TextField = null;
var contentHeight:Float = displayHeight;
var wordI:Int;
var paraI:Int = 0;
var tempArr2:Array<String>;
while (paraI < allParas.length)
{
if (false) //check img tag
{
}
else //if para is words
{
wordI = 0;
words = allParas[paraI].split(" ");
while (wordI < words.length)
{
if (tempField == null || tempField.textHeight > contentHeight)
{
if (tempField != null) {
wordI--;
tempArr2 = tempField.text.toString().split(" ");
for (i in 0... tempArr2.length)
{
tempArr2.remove("");
}
tempArr2.pop();
tempField.text = tempArr2.join(" ");
}
tempField = new TextField();
tempField.defaultTextFormat = field.getTextFormat();
tempField.embedFonts = true;
tempField.text = "";
tempField.border = false;
tempField.selectable = false;
tempField.wordWrap = true;
tempField.autoSize = TextFieldAutoSize.LEFT;
tempField.width = displayWidth-2;
tempField.x = 0;
fields.push(tempField);
}
else
{
tempField.appendText(words[wordI] + (wordI == words.length - 1? "\n": " "));
wordI++;
}
}
}
paraI++;
}
var bd:BitmapData;
for (i in 0... fields.length)
{
bd = new BitmapData(Std.int(fields[i].width), Std.int(fields[i].height));
bd.draw(fields[i]);
images.push(new Bitmap(bd, PixelSnapping.AUTO, true));
}
//addChild(fields[0]);
images[0].x = 10;
addChild(images[0]);
currentPageInstance = images[0];
currentPage = 0;
drawScrollBar();
if (optionsBtn!=null)addChild(optionsBtn);
}
So apparently using the toString() funcion gives problems for a cpp target.
I am supposed to add 4 teechart controls at runtime. I am able to bind the values to teechart controls.
The problem is, when I scroll the parent view, all the teecharts disappear. But all other controls are visible (button, textview, etc.).
Note: initially all the controls are visible; they disappear only when I scroll.
void drawRainfallChart()
{
try
{
obj = new csGraphClass();
RainfallGraph[] graphdata = obj.getRainfallData(_cropId.ToString());
if (rainfallChart == null)
rainfallChart = new Steema.TeeChart.TChart(this);
else
{
rainfallChart.RemoveAllViews();
rainfallChart.Dispose();
rainfallChart = new Steema.TeeChart.TChart(this);
}
if (graphdata.Length > 0)
{
rainfallChart.Aspect.View3D = false;
rainfallChart.Chart.Invalidate();
Steema.TeeChart.Styles.Line rline = new Steema.TeeChart.Styles.Line();
Steema.TeeChart.Styles.Line rCrtdayline = new Steema.TeeChart.Styles.Line();
rainfallChart.Series.Add(rline);
rainfallChart.Series.Add(rCrtdayline);
DateTime currentdate = SyncProcess.CalculatedDatetime();
double dc = 0;
foreach (RainfallGraph item in graphdata)
{
dc += Convert.ToDouble(item.yValue);
rline.Add(Convert.ToDateTime(item.xValue), dc);
if (item.xValue == currentdate.ToString("yyyy-MM-dd"))
{
rCrtdayline.Add(Convert.ToDateTime(item.xValue), 0);
rCrtdayline.Add(Convert.ToDateTime(item.xValue), Convert.ToDouble(item.yValue));
}
}
rline.Title = "Rainfall";
rCrtdayline.Title = "Crop Day";
rline.Pointer.Visible = true;
rline.Pointer.Style = Steema.TeeChart.Styles.PointerStyles.Circle;
rline.Chart.Axes.Left.SetMinMax(0, Convert.ToDouble(dc + 5));
var varMinDate = graphdata.Min(s => s.xValue);
var varMaxDate = graphdata.Max(s => s.xValue);
DateTime minDate = Convert.ToDateTime(varMinDate).AddDays(-1);
DateTime maxDate = Convert.ToDateTime(varMaxDate).AddDays(1);
rline.Chart.Axes.Bottom.SetMinMax(minDate, maxDate);
rainfallChart.Axes.Bottom.Increment = Steema.TeeChart.Utils.GetDateTimeStep(Steema.TeeChart.DateTimeSteps.OneDay);
rainfallChart.Axes.Bottom.Labels.DateTimeFormat = "dd/MM/yyyy";
rainfallChart.Footer.Font.Size = 25;
rainfallChart.Legend.Font.Size = 25;
rainfallChart.Header.Font.Size = 25;
rainfallChart.Axes.Bottom.Labels.Font.Size = 18;
rainfallChart.Axes.Left.Labels.Font.Size = 15;
rainfallChart.Legend.Transparent = true;
rainfallChart.Header.Visible = true;
rainfallChart.Axes.Bottom.Grid.Visible = false;
rainfallChart.Header.Text = "Rain fall";
rainfallChart.Legend.Visible = true;
rainfallChart.Axes.Left.Grid.DrawEvery = 1;
rainfallChart.Legend.Alignment = Steema.TeeChart.LegendAlignments.Bottom;
rainfallChart.Panning.Allow = Steema.TeeChart.ScrollModes.None;
rainfallChart.Panning.Allow = Steema.TeeChart.ScrollModes.None;
rainfallChart.Zoom.Style = Steema.TeeChart.ZoomStyles.Classic;
rainfallChart.Zoom.Allow = false;
rainfallChart.Panning.Allow = ScrollModes.None;
rainfallChart.SetPadding(0, 50, 0, 50);
Android.Widget.LinearLayout.LayoutParams layoutParams = new Android.Widget.LinearLayout.LayoutParams(graphheight, graphwidth);
layoutParams.TopMargin = 100;
layoutParams.BottomMargin = 100;
rainfallChart.ScrollBarStyle = ScrollbarStyles.InsideOverlay;
rainfallChart.SetScrollContainer(false);
srcgraph.AddView(rainfallChart, layoutParams);
}
}
catch (Exception ex)
{
ErrorHandling.ErrorEntry(ex.Message.ToString(), "TodayGraphViewController - drawRainfallChart");
}
}
Another user recently reported a similar issue (TM63016590) when Zoom.Style is set to ZoomStyles.Classic. We have a fix suggestion for this, which is available in the current evaluation version available at https://www.steema.com/downloads/net_android. Could you please let us know if it solves the problem at your end?