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Cannot get Toast from EditText

I have a multi-edit text field in a card view I want to get a string from and show in a toast before moving on to another activity. I can fill in text just fine when running the activity, but when I click the submit button nothing happens. What am I doing wrong or what am I missing in the code?
Here is my XML file:
<android.support.v7.widget.CardView
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
card_view:cardCornerRadius="4dp"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="0dp">
<EditText
android:id="#+id/value1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:hint="#string/choice_hint1c"
android:inputType="textMultiLine" />
</android.support.v7.widget.CardView>
<Button
android:id="#+id/choiceButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/round_btn_shape"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:layout_marginStart="125dp"
android:text="#string/submit"
android:textColor="#FFFFFF" />
Class file:
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
public class Choice extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_choice);
addListenerOnButton();
}
public void addListenerOnButton() {
Button submitButton = (Button) findViewById(R.id.choiceButton);
final EditText editTextV1 = (EditText) findViewById(R.id.value1);
final String valueOne = editTextV1.getText().toString();
submitButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (valueOne.equals("")) {
//happens if first field is empty
Toast.makeText(
getApplicationContext(),
"First field is empty",
Toast.LENGTH_SHORT).show();
} else {
//save selection
Toast.makeText(
getApplicationContext(),
valueOne,
Toast.LENGTH_SHORT).show();
//save response to SQLite
Intent intentSurvey = new Intent(Choice.this, MainActivity.class);
startActivity(intentSurvey);
}
}
});
}
}

You miss to add addListenerOnButton() inside onCreate method.
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_choice);
addListenerOnButton(); // add this
}
To check whether EditText is empty
if(TextUtils.isEmpty(valueOne))
Move String valueOne = editTextV1.getText().toString(); inside onClick

I don't know what is Choice.this but first argument of Toast need be Context Example: Toast.makeText(getContext(), "Your text for toast", Toast.LENGTH_SHORT).show();

You're on the right track. When asserting on a string coming from an EditText, I prefer to use:
if(Strings.isNullOrEmpty(someStringHere)) {
do this
}
This is utilized from the espresso library. Import to your class file with
import android.support.test.espresso.core.deps.guava.base.Strings;
Make sure to add Espresso to your build.gradle file.
A string can be null, but not equal "", that's why I pursue the route mentioned above. I'm assuming your toast is showing a 'null' String.
If this does not work, I suspect it's because you're trying to find a view by id within an onClick method. onClick (and other 'on' methods for the matter of fact) have different context than your activity has. That's why When making a toast, you had to say CLASSNAME.this, rather than just 'this'.
Try pulling out your edit text, and making it a private member of your class. Find the edit text by id as you did before, but do it above and outside the onClickListener. Once inside the onclick method, you should be able to get the text values as you have already.
If neither of these solve your issue, you're going to have to post more of your code.

First is that I don't see the method addListenerOnButton() within the onCreate. This was mentioned.
Second is that the final String valueOne is being set on create, with the initial value of the EditText. This value is then persisted through closure of the anonymous class.
You need to get the String version of the text field within the listener.

Opening New Activity in Second Activity [duplicate]

This question already has answers here:
How to start new activity on button click
(28 answers)
Closed 6 years ago.
So far from all the tutorials I've looked at, most only get to the point of "Button Was Clicked" I need my second activity button to open a new activity.
I named this class, fifth_layout.xml
<Button
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Amazon"
android:drawableLeft="#drawable/amazon"
android:drawableStart="#drawable/amazon"
android:layout_weight="0.07"
tools:ignore="HardcodedText"
android:id="#+id/button10"
android:textSize="35sp" />
After that in my FifthActivity.java I have
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class FifthActivity extends Activity {
Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fifth_layout);
Button button = (Button) findViewById(R.id.button10);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
}
});
}
}
I just need the button to be able to open a new blank activity. But when i click the button nothing happens? I just need a new activity. i feel like the code is correct i just need help on what i might be doing wrong.

You have to use intent to open a new Activity. Assuming you want to open an activity called SixthActivity from your FifthActivity.
You should use this:
public class FifthActivity extends Activity {
Button button;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fifth_layout);
Button button = (Button) findViewById(R.id.button10);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent intent = new Intent(FifthActivity.this,SixthActivity.java);
FifthActivity.this.startActivity(intent);
}
});
}
}
Hope this helps,
Regards.

Your onClickListener does nothing, of course nothing happens.
Create a new Activity (let's say you name it NewActivity, add it to the AndroidManifest.xml and add the following code you your existing activity:
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
final Intent intent = new Intent(FifthActivity.this, NewActivity.class);
startActivity(intent);
}
});
I have a very strong feeling you're kind of lost in Android Development. I strongly suggest you follow Udacity's Android Development course.

Alright, so you have the single activity with its layout, right?
What your asking is "how do I launch another activity with another layout?"
To do this, we'll use an "intent" (think of an intent as how the activities talk to eachother, they get passed back and forth)
To create the intent and start, you'll need these couple lines:
Intent intent = new Intent(this, Target.class);
startActivity(intent);
Which should work within your onClick.
If you created the activity within Android Studio with File>New>Activity, this should have put the activity in your AndroidManifest.xml already, otherwise you'll need to add it yourself.

How do I make my button play a sound?

I know that this has been asked many, many times before, but how do I make my button play a sound when it's pressed?
this is my button's code:
<Button
android:id="#+id/c1"
android:layout_width="250dp"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="45dp"
android:background="#drawable/button_selector" />
and here is my MainActivity.java:
package com.example.appname;
import android.app.Activity;
import android.os.Bundle;
public class MainActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
}
what do I have to add to make my button play a sound? If it helps I'm using Eclipse.
EDIT
I don't really know what I'm doing when it comes to this, so if you could please show me what to add to my code that would be great.

You could use an OnClickListener. Here is the developer section detailing how to do it.
You need to implement the onClick method once you assign the OnClickListener to your button. Here is the section about buttons, the code here will get you started.
For playing the sound, I recommend a MediaPlayer You can set your MediaPlayer to start (playing) in the onClick method.

first of all you have to understand events generated by views in android ,in your case button click event, you have to use OnClickListener
and youre code look like
public class MainActivity extends Activity implements
OnClickListener{
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button btnPlaySound = (Button) findViewById(R.id.c1);
btnPlaySound.setOnclickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.view_id:
break;
default:
break;
}
}
}

how to include list along side other UI elements? (Android)

I'm new to android developing, so i apologise if this is a simple/noob-ish question, and for any incorrect terminology.
but what i need to know is how can i include a list alongside of other UI elements (such as TextView, ImageView elements etc)
upto now, all i have been able to achieve is a list activity all on its own, which to do this i have been using the ListActivity class type.
My list activity:
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
public class ListViewExample extends ListActivity
{
String[] exampleList = {
"Item 1",
"Item 2",
"Item 3"
//etc etc
};
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
setListAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, exampleList));
}
}
Which is started within my Main class/activity:
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
public class NewtestActivity extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
startActivity(new Intent( this, ListViewExample.class));
}
}
but with the function of "startActivity()", this seems to just switch to that activity, and not "include" it to the current, which of-corse means that any elements within "R.layout.main" (defined above the calling of "startActivity()) are not shown.
Is there anyway to include this activity within my main activity?
or is there a better way of making a list?
(my goal will eventually be to make the list array dynamic, just thought id say in case that affected on any suggested solution).
thanks for any help (:

Using the startActivity to start your ListViewExample starts a whole new activity (with a whole new view) and puts it on top of the stack. When you click the back button, then your main activity will be displayed. Please see this link to learn more about the activity lifecycle.
It sounds like what you want to do is define some other UI elements alongside your listview. I dont know if you can do this on the SIDE, but I know you can include buttons/textviews on top or bottom of a listview. See this post as a good example of how to put a button below a listview.
EDIT: As an example (taken from the second link), you would do something like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent" android:layout_height="fill_parent">
<Button android:layout_width="fill_parent"
android:layout_height="wrap_content" android:id="#+id/testbutton"
android:text="#string/hello" android:layout_alignParentBottom="true" />
<ListView android:layout_width="fill_parent"
android:layout_height="fill_parent" android:id="#+id/list"
android:layout_alignParentTop="true" android:layout_above="#id/testbutton" />
</RelativeLayout>
Now you could also put that button on bottom if you wanted, or include a textbox on the top and a button on bottom.
Yes as Espiandev said, you would want your main activity to extend Activity. Then in your XML you would have the above. The way you would get your listview to bind to would be
ListView lv = (ListView)findViewById(R.id.list);
Then you could bind to it:
lv.setAdapter(...)

An alternative to the other answer, which is probably more scalable, is to simply make ListViewExample extend a basic Activity. Then, in the onCreate() method, retrieve the ListView by using findViewById() and then use setAdapter() on this. For example, if your ListView was given the id listview1:
public class ListViewExample extends Activity {
String[] exampleList = {
"Item 1",
"Item 2",
"Item 3"
//etc etc
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.listview);
// Get an instance of your listview in code
ListView listview = (ListView) findViewById(R.id.listview1);
// Set the listview's adapter
listview.setAdapter(new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, exampleList));
}
}
This will give you the flexibility to have a layout with more than just a listview in it

Application not working, beginner

i am fairly new to android programming and usually find my answers to my problems by searching, but this one i just cant and its very confusing.
The code itself doesn't show any signs of problems, well i do get 2 java exception breakpoints but i dont know how to fix those as they are "unknown"but when i run it on the emulator it says the application has stopped unexpectedly force close. I try to debug it but i dont know how to do it that well. any way here are the codes btw the app is just a test all it to do is have buttons that take me to other "pages" and back. I would appreciate any help.
Main java file
package com.simbestia.original;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class original extends Activity implements View.OnClickListener {
Button button1, button2;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
button1 = (Button) findViewById(R.id.pagetwo);
button2 = (Button) findViewById(R.id.main);
button1.setOnClickListener(this);
button2.setOnClickListener(this);
}
#Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.pagetwo:
setContentView(R.layout.pagetwo);
break;
case R.id.main:
setContentView(R.layout.main);
break;
}
}
}
Main xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/hello"
/>
<Button android:text="pagetwo" android:id="#+id/pagetwo" android:layout_width="wrap_content" android:layout_height="wrap_content"></Button>
</LinearLayout>
Well here is what i change the code to this one is just one button but it works with multiple and i made a class for every page...
package com.simbestia.test;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class main extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
Button mainmenu = (Button) findViewById(R.id.mainmenu);
mainmenu.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent myIntent = new Intent(view.getContext(), mainmenu.class);
startActivityForResult(myIntent, 0);
}
});
}
}
Works how i wanted to so its all good i guess ty again

In the command line/terminal, use ./adb logcat to see, in real time, warnings, erros and such from your device, while you run your app. That should help you a lot.
Note: Don't forget to be in the right folder... <android-sdk-version>/platform-tools, that's where the ADB is.

You should learn to debug your own application. Starting with a break point right in the first line of your onCreate() method.
You can also take a look here: http://www.droidnova.com/debugging-in-android-using-eclipse,541.html
Another possibility is to add a log call in the first line of your onCreate() so you can see where the log of your app starts...
edit:
The way you want to switch the layout is wrong. Try layout switcher or start a new activity for your new layout. calling setContentView more than once is basically just wrong...

Some things to check: make sure your code source folder is the same as your package name (com.simbestia.original) ; make sure it builds (without errors) before you try and run it and make sure that your manifest file has its package attribute set to your package name (com.simbestia.original).