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Android Build a Simple Android App (2014) Basic Android Programming Adding the onClick() Method

Posted by Natenda Manyau
Natenda Manyau
3,005 Points

emulator wont run new fun fact

my emulator wont run the new fun fact

Valery Kukatov
Valery Kukatov
6,996 Points
Valery Kukatov
Valery Kukatov
6,996 Points

Do you have the code that you are trying to run and/or an error that it's giving you?

4 Answers

MUZ140292 Shepherd Kalinchenga
MUZ140292 Shepherd Kalinchenga
4,985 Points
MUZ140292 Shepherd Kalinchenga
MUZ140292 Shepherd Kalinchenga
4,985 Points

What error message are you getting

ISAIAH S
ISAIAH S
1,409 Points
ISAIAH S
ISAIAH S
1,409 Points

I found what I did wrong. I was messing around and made the button invisible. I made it visible and my code worked.

MUZ140292 Shepherd Kalinchenga
MUZ140292 Shepherd Kalinchenga
4,985 Points
MUZ140292 Shepherd Kalinchenga
MUZ140292 Shepherd Kalinchenga
4,985 Points

if you keep getting problems try using the geny motion emulator. you can get it from :https://www.genymotion.com

ISAIAH S
ISAIAH S
1,409 Points

I'm having the same problem, and I have no error, only it won't show the next fun fact. Here's my code:

FunFactsActivity.java:

package com.example.admin.funfacts;

        import android.app.Activity;
        import android.content.DialogInterface;
        import android.os.Bundle;
        import android.view.Menu;
        import android.view.MenuItem;
        import android.view.View;
        import android.widget.Button;
        import android.widget.TextView;


public class FunFactsActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fun_facts);

        // Declare our View variables and assign the variables from the layout file
        final TextView factLabel = (TextView) findViewById(R.id.factTextView);
        Button showFactButton = (Button) findViewById(R.id.showFactButton);
        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                // update the fact file with a new fact
                String fact = "Ostriches can run faster than horses.";
                factLabel.setText(fact);
            }
        };
        showFactButton.setOnClickListener(listener);


    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.fun_facts, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
      /*Handle action bar item clicks here. The action bar will
        automatically handle clicks on the Home/Up button, so long
        as you specify a parent activity in AndroidManifest.xml.*/
        int id = item.getItemId();
        if (id == R.id.action_settings) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}

activity_fun_facts.xml:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".FunFactsActivity"
    android:background="#ff51b46d">

    <TextView
        android:text="Did you know?"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="24sp"
        android:textColor="#80ffffff"
        android:id="@+id/TextView" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Ants stretch when they wake up in the morning."
        android:id="@+id/factTextView"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:textSize="24sp"
        android:textColor="@android:color/white" />

    <Button
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/showFactButton"
        android:visibility="invisible"
        android:singleLine="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true" />

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="(Touch for next Fun Fact)"
        android:id="@+id/newFunFactTextView"
        android:textSize="15sp"
        android:textColor="#82ffffff"
        android:layout_below="@+id/factTextView"
        android:layout_centerHorizontal="true"
        android:layout_marginTop="82dp" />

</RelativeLayout>

Thanks!! ISAIAH S

Timothy Williams
Timothy Williams
1,536 Points
Timothy Williams
Timothy Williams
1,536 Points

Same issue except mine crashes unless I comment out

//showFactButton.setOnClickListener(listener);

I have the current version of Android Studio here, so mine is a little different:

public class FunFactsActivity extends ActionBarActivity {

    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fun_facts);


        if (savedInstanceState == null) {
            getSupportFragmentManager().beginTransaction()
                    .add(R.id.container, new PlaceholderFragment())
                    .commit();
        }
        final TextView factLabel = (TextView) findViewById(R.id.factTextView);
        Button showFactButton = (Button) findViewById(R.id.showFactButton);
        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //button clicked update fact label
                String fact="Ostriches can run faster than horses.";
                factLabel.setText(fact);
            }
        };
        showFactButton.setOnClickListener(listener);

    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_fun_facts, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    /**
     * A placeholder fragment containing a simple view.
     */
    public static class PlaceholderFragment extends Fragment {

        public PlaceholderFragment() {
        }

        @Override
        public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                 Bundle savedInstanceState) {
            View rootView = inflater.inflate(R.layout.fragment_fun_facts, container, false);
            return rootView;
        }
    }
}