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Modify web example to show manual loading.

This commit is contained in:
Thorinair 2020-07-27 14:40:46 +02:00
parent f7bcef3b8f
commit fd1dfcb919
1 changed files with 32 additions and 6 deletions
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38
examples/2. Advanced Inkplate Features/10-Inkplate_Download_And_Show/10-Inkplate_Download_And_Show.ino
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@ -21,6 +21,7 @@
*/ */
#include "Inkplate.h" //Include Inkplate library to the sketch #include "Inkplate.h" //Include Inkplate library to the sketch
#include "HTTPClient.h" //Include library for HTTPClient
#include "WiFi.h" //Include library for WiFi #include "WiFi.h" //Include library for WiFi
Inkplate display(INKPLATE_1BIT); //Create an object on Inkplate library and also set library into 1 Bit mode (Monochrome) Inkplate display(INKPLATE_1BIT); //Create an object on Inkplate library and also set library into 1 Bit mode (Monochrome)
SdFile file; //Create SdFile object used for accessing files on SD card SdFile file; //Create SdFile object used for accessing files on SD card
@ -61,16 +62,41 @@ void setup() {
} }
display.display(); display.display();
//Draw the second image from web. //Draw the second image from web, this time using a HTTPClient to fetch the response manually.
//Full color 24 bit images are large and take a long time to load, will take around 20 secs. //Full color 24 bit images are large and take a long time to load, will take around 20 secs.
HTTPClient http;
//Set parameters to speed up the download process.
http.getStream().setNoDelay(true);
http.getStream().setTimeout(1);
//Photo taken by: Roberto Fernandez //Photo taken by: Roberto Fernandez
if(!display.drawBitmapFromWeb("https://varipass.org/neowise.bmp", 0, 0)) { http.begin("https://varipass.org/neowise.bmp");
//If is something failed (wrong filename or wrong bitmap format), write error message on the screen.
//REMEMBER! You can only use Windows Bitmap file with color depth of 1 or 24 bits with no compression! //Check response code.
display.println("Image open error"); int httpCode = http.GET();
if (httpCode == 200) {
//Get the response length and make sure it is not 0.
int32_t len = http.getSize();
if (len > 0) {
if(!display.drawBitmapFromWeb(http.getStreamPtr(), 0, 0, len)) {
//If is something failed (wrong filename or wrong bitmap format), write error message on the screen.
//REMEMBER! You can only use Windows Bitmap file with color depth of 1 or 24 bits with no compression!
display.println("Image open error");
display.display();
}
display.display();
}
else {
display.println("Invalid response length");
display.display();
}
}
else {
display.println("HTTP error");
display.display(); display.display();
} }
display.display();
http.end();
WiFi.mode(WIFI_OFF); WiFi.mode(WIFI_OFF);
} }