Android app keeps crashing, new to Android dev

Question

I'm new to android development. I'm just trying to make a simple guessing type app. But when I deploy to my phone it instantly crashes.

Here's the xml file

<GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:columnCount="5"
    android:orientation="horizontal"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.association.researchminigame.MainActivity" >

    <Space
        android:id="@+id/Space1"
        android:layout_column="1"
        android:layout_gravity="fill_vertical"
        android:layout_row="5" />

    <EditText
        android:id="@+id/editTextIngredients"
        android:layout_width="116dp"
        android:layout_column="0"
        android:layout_columnSpan="2"
        android:layout_gravity="left|top"
        android:layout_row="2"
        android:ems="10"
        android:inputType="number" >

        <requestFocus />
    </EditText>

    <TextView
        android:id="@+id/textView1"
        android:layout_width="113dp"
        android:layout_column="0"
        android:layout_columnSpan="2"
        android:layout_gravity="left"
        android:layout_marginTop="28dp"
        android:layout_row="1"
        android:text="How many ingredients(1-3)?" />

    <TextView
        android:id="@+id/textView2"
        android:layout_column="4"
        android:layout_gravity="left"
        android:text="How many testers?" />

    <Button
        android:id="@+id/ButtonReset"
        style="?android:attr/buttonStyleSmall"
        android:layout_column="3"
        android:layout_gravity="left"
        android:layout_marginBottom="65dp"
        android:layout_row="7"
        android:text="Reset" />

    <Button
        android:id="@+id/buttonGuess"
        style="?android:attr/buttonStyleSmall"
        android:layout_column="3"
        android:layout_gravity="left"
        android:layout_row="6"
        android:text="Guess" />

    <NumberPicker
        android:id="@+id/numberPicker1"
        android:layout_column="2"
        android:layout_columnSpan="2"
        android:layout_gravity="left"
        android:layout_row="5" />

    <EditText
        android:id="@+id/editTextTesters"
        android:layout_width="114dp"
        android:layout_gravity="fill_horizontal"
        android:layout_row="2"
        android:ems="10"
        android:inputType="number" />

    <TextView
        android:id="@+id/textView3"
        android:layout_column="2"
        android:layout_columnSpan="3"
        android:layout_gravity="left"
        android:layout_marginTop="33dp"
        android:layout_row="3"
        android:text="Current testers:" />

    <TextView
        android:id="@+id/textViewTesters"
        android:layout_column="3"
        android:layout_gravity="left"
        android:layout_marginTop="14dp"
        android:layout_row="4"
        android:text="TextView" />

    <TextView
        android:id="@+id/textViewStatus"
        android:layout_column="1"
        android:layout_columnSpan="4"
        android:layout_gravity="left"
        android:layout_marginBottom="31dp"
        android:layout_row="8"
        android:text="Large Text"
        android:textAppearance="?android:attr/textAppearanceLarge" />

</GridLayout>

Here's my code:

package com.association.researchminigame;

import java.util.Random;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.NumberPicker;
import android.widget.TextView;


public class MainActivity extends Activity {

    NumberPicker numPick;
    Button guess;
    Button reset;
    Random RNG = new Random();
    EditText editIngredients;
    EditText editTesters;
    int testers;
    int ingredients;
    int target;
    TextView viewTesters;
    TextView status;
    int numGuessed;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        numPick = (NumberPicker)findViewById(R.id.numberPicker1);
        guess = (Button)findViewById(R.id.buttonGuess);
        reset = (Button)findViewById(R.id.ButtonReset);
        editIngredients = (EditText)findViewById(R.id.editTextIngredients);
        editTesters = (EditText)findViewById(R.id.editTextTesters);
        numPick.setMaxValue(10);
        numPick.setMinValue(0);
        viewTesters = (TextView)findViewById(R.id.textViewTesters);
        viewTesters.setText(10);
        guess.setVisibility(View.GONE);
        status = (TextView)findViewById(R.id.textViewStatus);
        status.setText("");
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    public void onClick(View v){
        if (v == guess){
            guessCheck();
        }
        if (v == reset){
            testers = Integer.parseInt(editTesters.getText().toString());
            viewTesters.setText(testers);
            ingredients = Integer.parseInt(editIngredients.getText().toString());
            target = RNG.nextInt(10) + 1;
            guess.setVisibility(View.VISIBLE);
        }
    }

    public void guessCheck(){
        numGuessed = numPick.getValue();
        if (numGuessed == target){
            status.setText("You win! Feel free to play again.");
        }
        else{
            if ((testers-numGuessed) > 0){
                testers -= numGuessed;
                viewTesters.setText(testers);
            }
            else{
                status.setText("You lose! Play again!");
                guess.setVisibility(View.VISIBLE);
            }
        }
    }
}

`

Got a new set of errors:

09-22 21:49:35.857: E/ACDB-LOADER(188): Error: ACDB AudProc vol returned = -19
09-22 21:49:38.577: E/AndroidRuntime(14583): FATAL EXCEPTION: main
09-22 21:49:38.577: E/AndroidRuntime(14583): Process: com.association.researchminigame, PID: 14583
09-22 21:49:38.577: E/AndroidRuntime(14583): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.association.researchminigame/com.association.researchminigame.MainActivity}: android.content.res.Resources$NotFoundException: String resource ID #0xa
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2184)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2233)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.ActivityThread.access$800(ActivityThread.java:135)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.os.Handler.dispatchMessage(Handler.java:102)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.os.Looper.loop(Looper.java:136)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.ActivityThread.main(ActivityThread.java:5001)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at java.lang.reflect.Method.invokeNative(Native Method)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at java.lang.reflect.Method.invoke(Method.java:515)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at dalvik.system.NativeStart.main(Native Method)
09-22 21:49:38.577: E/AndroidRuntime(14583): Caused by: android.content.res.Resources$NotFoundException: String resource ID #0xa
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.content.res.Resources.getText(Resources.java:244)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.widget.TextView.setText(TextView.java:3888)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at com.association.researchminigame.MainActivity.onCreate(MainActivity.java:43)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.Activity.performCreate(Activity.java:5231)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
09-22 21:49:38.577: E/AndroidRuntime(14583):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2148)
09-22 21:49:38.577: E/AndroidRuntime(14583):    ... 11 more
09-22 21:49:48.377: E/WindowManager(767): Starting window AppWindowToken{43862890 token=Token{42f482b8 ActivityRecord{432f71a8 u0 com.association.researchminigame/.MainActivity t27}}} timed out

Here is my strings.xml by the way:

<?xml version="1.0" encoding="utf-8"?>
<resources>

    <string name="app_name">ResearchMinigame</string>
    <string name="action_settings">Settings</string>
    <string name="ingredients">How many ingredients(1 to 3)?</string>
    <string name="testers">How many testers?</string>
    <string name="reset">Reset</string>
    <string name="guess">Guess</string>
    <string name="current">Current testers:</string>
    <string name="blank"> </string>

</resources>

I don't even know what to search for. I probably forgot some vital step in creating some of the code. Any help would be very much appreciated! I tried doing some research... But it's kind of hard to research crashes that you have no clue about!

Your issue is in line number 35. Make sure that button doesn't overlap the numberpicker in ur xml file. Please post ur full xml file. — Kosh, Sep 23 '14 at 00:59
Some of the xml wasn't displaying for some reason, my bad. But how is the button and the numberpicker overlapping? There is the /> before the start of the numberpicker — Raistlin, Sep 23 '14 at 01:23
@Raistlin sorry my bad, never saw that you using Gridlayout. — Kosh, Sep 23 '14 at 01:26
If you don't know what to search for, please read [this page](http://stackoverflow.com/questions/23353173/unfortunately-myapp-has-stopped-how-can-i-solve-this) — yildirimyigit, Sep 23 '14 at 01:30
Thanks! I read that... Found the stack trace as not being able to cast a button as a number picker... But I can't find any instance that I did that! — Raistlin, Sep 23 '14 at 01:46
It's now giving me a new set of errors. But I have no idea what that stack trace means. — Raistlin, Sep 23 '14 at 01:52
Don't change what you posted. Now nobody else will be able to benefit from the original question and solution. — Kevin Krumwiede, Sep 23 '14 at 02:08

score 0 · Answer 1 · answered Sep 23 '14 at 01:28

0

Is this line 35?

    numPick = (NumberPicker)findViewById(R.id.numberPicker1);

If so, the error indicates that you have defined numberPicker1 as a Button instead of a NumberPicker in your XML. But the XML you posted is correct, so perhaps you already fixed it but you need to clean and rebuild.

answered Sep 23 '14 at 01:28

Kevin Krumwiede

9,868
4
34
82

Hm. Nope, I haven't changed anything. But I tried to rerun anyway, didn't change anything. – Raistlin Sep 23 '14 at 01:35
Did you clean the project? – Kevin Krumwiede Sep 23 '14 at 02:06
Yup. Still giving me some error about String resource ID #0xa – Raistlin Sep 23 '14 at 02:14

score 0 · Answer 2 · answered Sep 23 '14 at 02:22

0

in your codes

viewTesters.setText(10);

You should write this

viewTesters.setText(Integer.toString(10));

TextView.setText is an overloaded function, int varibales are for resources id.

answered Sep 23 '14 at 02:22

楊惟鈞

622
6
12

score 0 · Accepted Answer · answered Sep 23 '14 at 02:23

 viewTesters = (TextView)findViewById(R.id.textViewTesters);
 viewTesters.setText(10);  // BUG HERE
 guess.setVisibility(View.GONE);
 status = (TextView)findViewById(R.id.textViewStatus);
 status.setText("");

the setText method of TextView both accept CharSequence and a resourceId(you can define it in you res/strings.xml), you called viewTesters.setText(10), the value 10 will be regarded as a resource id, and android intent to find a String by this id. In the exception stack, it shows:

android.content.res.Resources$NotFoundException: String resource ID #0xa

0xa is 10, so...

if you just want to set the TextView's value to 10, you can call setText(""+10);

enter image description here

Android app keeps crashing, new to Android dev

3 Answers3