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Android

Harrison Court
Harrison Court
4,232 Points
Posted by Harrison Court
Harrison Court
4,232 Points

Changing Dynamic Background crashes the app.

FunFactsActivity.java:

package harrycourt.funfactsapp;

import android.content.DialogInterface;
import android.graphics.Color;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;

import java.util.Random;

public class FunFactsActivity extends AppCompatActivity {
    private FactBook mFactBook = new FactBook();
    // Declare our view vars
    private TextView mFactTextView;
    private Button mShowFactButton;
    private RelativeLayout mRelativeLayout;

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

        // Assign views from the layout file to the corresponding vars
        mFactTextView = (TextView) findViewById(R.id.factTextView);
        mShowFactButton = (Button) findViewById(R.id.showFactButton);
        mRelativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout);

        View.OnClickListener listener = new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String fact = mFactBook.getFact();

                // Update screen with fact.
                mFactTextView.setText(fact);
                mRelativeLayout.setBackgroundColor(Color.RED);
            }
        };
        mShowFactButton.setOnClickListener(listener);
    }
}
Harrison Court
Harrison Court
4,232 Points
Harrison Court
Harrison Court
4,232 Points

It's okay Ben! I fixed the error, I needed to put in constraint layout, not relative layout!

Please update the videos!