Hooking up data to TextView - weather app

Challenge Link:

http://teamtreehouse.com/library/build-a-weather-app/hooking-up-the-model-to-the-view/setting-views-with-data

Challenge Task 1 of 2

Time to hook up some movie data! In the updateDisplay() method, set the title TextView using the appropriate method from the Movie class.

Challenge Task 2 of 2

Now let's set the image using the Movie method that gets the appropriate ID.

This seems like an easy challenge but it was definitely NOT!

For the first part of the challenge this is all you need:

  public void updateDisplay(Movie movie) {
        // Add your code here!
      mTitleLabel.setText(movie.getTitle());
    }

The second part of the challenge is the tricky part...

This is the video that "sort of" gives you a hint as to what is needed: http://teamtreehouse.com/library/build-a-weather-app/hooking-up-the-model-to-the-view/setting-the-weather-icon

But you should dig around in the zip project files for "MainActivity.java" and search for "updateDisplay()".

If you do you'll find this code:

    private void updateDisplay() {
        mTemperatureLabel.setText(mCurrentWeather.getTemperature() + "");
        mTimeLabel.setText("At " + mCurrentWeather.getFormattedTime() + " it will be");
        mHumidityValue.setText(mCurrentWeather.getHumidity() + "");
        mPrecipValue.setText(mCurrentWeather.getPrecipChance() + "%");
        mSummaryLabel.setText(mCurrentWeather.getSummary());

       Drawable drawable = getResources().getDrawable(mCurrentWeather.getIconId());
        mIconImageView.setImageDrawable(drawable);
    }

The important part is the last two lines that define and use 'drawable'.

To "translate" this code into what the challenge wants/needs

you have to know:

1.) That mIconImageView is an imageview name and the code challenge uses a corresponding ImageView name of "mMovieImage"

2.) That .getIconId gets a number (an "int" number) corresponding to an image/picture, so the corresponding getter in the Movie class is 'movie.getImageId()'

3.) That setImageDrawable DOES NOT correspond to the movie class setter 'setImageId(int id)' (Ha! Ha! Fooled you! )

So (without further ado) the code that should pass:

  public void updateDisplay(Movie movie) {
        // Add your code here!
      mTitleLabel.setText(movie.getTitle());

      Drawable drawable = getResources().getDrawable(movie.getImageId());
      mMovieImage.setImageDrawable(drawable);
  }

Oh yeah, you say:

"I could have pounded out that code right off the top of my head"

If so you are better coder than I who had to spend over an hour researching this one.. (that's the "unamused" emoji/empticon)