Ok, im fairly new to android but i have managed to teach myself the basics, i am making an app where you press a button , and a new screen opens and it shows a randomly generated number, the only problem is i dont know how to generate and display the random number, i have been searching the web for ages and have only found little snippets of information , that dosent really make sense to me.
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Brand new to droid programming, but would love to learn as much as possible, so I finally got my emulator working correctly, I even got a hello world button to work. I'm attempting to make this button display a random number, I've googled this and came up with this code:
Random generator = new Random();
int n = generator.nextInt(n);
I fixed the Random function by including some Random java utility. I'm assuming this code above goes in the .java file of the project, so my button code looks as follows (tested and works):
PopUpText.makeText(v.getContext(), "Hello World",
PopUpText.LENGTH_LONG).show();
I figured I could replace "Hello World" with n to display the number in the box, however the following error is stopping the compile:
The local variable n may not have been initialized
I have a an array of objects and would like to be able to randomly choose one from the list when a button is pressed. How would you do that in Android?
View 3 Replies View RelatedI'm not sure what's wrong here, all i want to do is randomly grab an item from my array. Which is just like a random sentence. Then generate another once the button is pressed. All my code looks good to me but it's causing a crash when i hit the button. any ideas?
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Another question is whether to display message is Android uses the WebView?
I m generating one random card from array. and assigning it.'
Below is the code..but its is showing an error. What is the problem?
public void rand() {String rank[]= {"tclub1.png", "tclub2.png", "tclub3.png", "tclub4.png", "tclub5.png", "tclub6.png", "tclub7.png", "tclub8.png", "tclub9.png", "tclub10.png","tclub11.png", "tclub12.png", "tclub13.png"};Random randInt = new Random();int b = randInt.nextInt((rank.length));showcard1.setBackgroundResource(b);}
In Android, I wrote a number of strings in my string.xml I would like to display on a TextView based on a random number...code...
But I know I am not doing it right because I get the error:
The method array50(int) is undefined for the type MAIN. Any ideas?
I'm having a very frustrating problem with my phone. I've been noticing a large number of random reboots lately. It primarily happens while I'm listing to music through my bluetooth headphones or my car stereo (connected via bluetooth). When the phone restarts it can't start the bluetooth and I get a force close of a system process. I have to pull the battery and cold boot it to get bluetooth back. Bad hardware?
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View 11 Replies View RelatedI want to make a textView1 that displays my random generated number when clicked on button1. so that i can build 5 questions with the if element. the main question is how do i get my random generated number in a textView?
I know there is a big chance the random number gen won't work but I am new in the Android scripting and want to discover new things, how to get a random number gen. but don't put to much effort.
Code:
package EasyApp.randomquestion;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.TextView;
import android.widget.Button;
[Code] .....
I somehow (knowingly or unknowingly) touched & dialled a number from an adult content app and then hung up. Since that day, I keep getting text msgs from different numbers, with lewd text & asking me to call a number (constant across all these sms-es). I block the number using MyVerizon number blocking service; but in 2-3 days I get similar text, asking me to call the same number, from a different number. I keep on blocking this new number (from where the text came) and they keep on sending same text from a different number. This keep on increasing my text bill.
If I reply to one of those texts saying "STOP", as the verizon customer care rep suggested, wouldn't that flag my number as LIVE and they'll start sending me more texts?How about using sms blocker apps? Again, question there is - do the sms blocker apps just delete spam msgs upon receiving and will I still incur the sms cost in my bill?
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SAMSUNG-SGH-I747
i want to display images on android screen.and the images should be scrolled in vertical way.how should i do the coding?
View 1 Replies View RelatedEvery now and then, I get this weird screen when I press the home button on my Galaxy W.The only way to exit this screen is to press the back button. Sometimes pressing the home button again will bring me back to this screen.The first few times it did this, it prompted me to run it through either Accuweather or Clock. After I deleted Accuweather, it defaulted to running through Clock, as seen in my task manager.
View 6 Replies View RelatedI've had my Incredible since 4/28, and everything has been working smoothly up until about last Thursday night when it just restarted out of the blue while I was listening to music. Then right after it booted up, it restarted again, then again about seven more times. I got fed up and took out the SD card and it seemed to stop after that, so I haven't put the SD card back in since then.
Just now, Wednesday, about a week later, I was browsing around on the internet and all of a sudden, it restarted, and then again, and again, and again. I've read that it is because of poor signal strength or something like that so I had just enough time to put it in airplane mode before it restarted again.
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