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Android Build a Weather App (2015) Hooking Up the Model to the View Using Butter Knife for Views

Posted by John Weland
John Weland
42,478 Points

Task 2 of 3

import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.ImageView;

public class MovieActivity extends Activity {


    @InjectView(R.id.titleLabel) TextView mTitleLabel;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_movie);
        ButterKnife.inject(this);

        // The rest of the code is omitted for brevity :)
    }
}

While I am pretty sure this should work the task is failing because it doesnt like the '.' between id and titleLabel. Anyone else having this problem?

MovieActivity.java 
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.ImageView;

public class MovieActivity extends Activity {


    @InjectView(R.id.titleLabel) TextView mTitleLabel;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_movie);
        ButterKnife.inject(this);

        // The rest of the code is omitted for brevity :)
    }
}
activity_movie.xml 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@android:color/white" >

    <TextView
        android:id="@+id/movieTitle"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="32sp"
        android:text=""
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true" />

    <ImageView
        android:id="@+id/movieImage"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_above="@id/movieTitle" />

    <LinearLayout
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/movieTitle"
        android:layout_centerHorizontal="true"
        android:id="@+id/linearLayout">

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text=""
            android:id="@+id/textView"
            android:layout_weight="1"
            android:gravity="left" />

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text=""
            android:id="@+id/textView2"
            android:layout_weight="1"
            android:gravity="right" />

    </LinearLayout>

</RelativeLayout>

3 Answers

Ken Alger
STAFF
Ken Alger
Treehouse Teacher
Ken Alger
Ken Alger
Treehouse Teacher

John;

Task 2

Now inject a TextView member variable. Name it mTitleLabel and use the ID from the layout file for the movie title TextView.

Your code is following the correct syntax, but if you look in the activity_movie.xml file, the ID for the title of movies is movieTitle. You currently are using titleLabel in your resource reference.

Post back if you are still stuck.

Happy coding,

Ken

John Weland
John Weland
42,478 Points

That did it, thanks.

malik vandyke
malik vandyke
5,417 Points

send an example of this code please thanks

wandile moyo
wandile moyo
2,508 Points

its not working

durul
durul
62,690 Points
durul
durul
62,690 Points

import android.os.Bundle; import android.view.View; import android.widget.TextView; import android.widget.ImageView;

public class MovieActivity extends Activity {

    @InjectView(R.id.movieTitle) TextView mTitleLabel;


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_movie);
    ButterKnife.inject(this);
    // The rest of the code is omitted for brevity :)
}

}

MUZ140564 Kudakwashe Jena
MUZ140564 Kudakwashe Jena
4,895 Points

how is task 3 of this challange completed?I am stuck

Mister Moody
Mister Moody
48,333 Points
Mister Moody
Mister Moody
48,333 Points

@MUZ140564: Task #3 of the Challenge simply requires you to Add a Single Line similar to the previous statement used to Inject a View: '@InjectView(R.id.movieImage) ImageView mMovieImage;'

By using the 'ID' of said Image View, I was able to correctly answer the question.

Sorry for the poor explanation~ I'm a greehorn developer.