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Android Android Lists and Adapters (2015) Lists with RecyclerViews Using a Layout Manager

Jordan Ernst
Jordan Ernst
5,121 Points

MainActivity.java uses or overrides a depricated api. recompile with Xlint

stormy is crashing each time i hit the button. the above question is the only error i am finding through everything. the error started a few lessons ago. please help with this or the other question i posted a few hours ago; either would probably fix the problem

Timothy Boland
Timothy Boland
18,237 Points

Can you post your MainActivity.java and build.gradle code so we can take a look?

Also, Wrap your code with 3 backticks (```) on the line before and after. If you specify the language after the first set of backticks, that'll help us with syntax highlighting.

      ```html
      <p>This is code!</p>
      ```
Jordan Ernst
Jordan Ernst
5,121 Points

i updated all of my software completely now i get a fatal exception error. and stormy crashes immediately when i run it.

here is my MainActivity.Java:

package com.teamtreehouse.stormy.ui;

import android.annotation.TargetApi; import android.content.Context; import android.content.Intent; import android.graphics.drawable.Drawable; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.Build; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.util.Log; import android.view.View; import android.widget.ImageView; import android.widget.ProgressBar; import android.widget.TextView; import android.widget.Toast;

import com.squareup.okhttp.Call; import com.squareup.okhttp.Callback; import com.squareup.okhttp.OkHttpClient; import com.squareup.okhttp.Request; import com.squareup.okhttp.Response; import com.teamtreehouse.stormy.R; import com.teamtreehouse.stormy.Weather.Current; import com.teamtreehouse.stormy.Weather.Day; import com.teamtreehouse.stormy.Weather.Forecast; import com.teamtreehouse.stormy.Weather.Hour;

import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject;

import java.io.IOException;

import butterknife.Bind; import butterknife.ButterKnife; import butterknife.OnClick;

public class MainActivity extends AppCompatActivity {

    public static final String TAG= MainActivity.class.getSimpleName();
    public static final String DAILY_FORECAST= "DAILY_FORECAST";
    public static final String HOURLY_FORECAST= "HOURLY_FORECAST";

    private Forecast mForecast;

    @Bind(R.id.timeLabel)TextView mTimeLabel;
    @Bind(R.id.temperatureLabel) TextView mTemperatureLabel;
    @Bind(R.id.humidityValue) TextView mHumidityValue;
    @Bind(R.id.precipValue) TextView mPrecipValue;
    @Bind(R.id.summaryLabel) TextView mSummaryLabel;
    @Bind(R.id.iconImageView)ImageView mIconImageView;
    @Bind(R.id.refreshImageView)ImageView mRefreshImageView;
    @Bind(R.id.progressBar)ProgressBar mProgressBar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);

        mProgressBar.setVisibility(View.INVISIBLE);

        final double latitude= 37.8267;
        final double longitude= -122.423;

        mRefreshImageView.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                getForecast(latitude, longitude);
            }
        });

        getForecast(latitude, longitude);
        Log.d(TAG,"main Ui code is running");
    }

    private void getForecast(double latitude, double longitude) {
        String apiKey="985474687ba757c24da7fb0e0c94cece";
        String forecastUrl= "https://api.forecast.io/forecast/" + apiKey + "/" + latitude + "," + longitude;

        if(isNetworkAvailable()) {
            toggleRefresh();

            OkHttpClient client = new OkHttpClient();// default constructor
            Request request = new Request.Builder().url(forecastUrl).build();

            Call call = client.newCall(request);
            call.enqueue(new Callback() {
                @Override
                public void onFailure(Request request, IOException e) {
                    runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            toggleRefresh();
                        }
                    });
                    alertUserAboutError();
                }

                @Override
                public void onResponse(Response response) throws IOException {
                        runOnUiThread(new Runnable() {
                            @Override
                            public void run() {
                                toggleRefresh();
                            }
                        });
                    try {
                        String jsonData = response.body().string();
                        Log.v(TAG, jsonData);
                        if (response.isSuccessful()) {
                            mForecast= parseForecastDetails(jsonData);
                            runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    updateDisplay();
                                }
                            });
                        } else {
                            alertUserAboutError();
                        }
                    } catch (IOException e) {
                        Log.e(TAG, "exception caught: ", e);
                    }
                      catch (JSONException e){
                        Log.e(TAG, "exception caught: ", e);
                    }
                }
            });
        }
        else{
            Toast.makeText(this, getString(R.string.network_unavailable),
                    Toast.LENGTH_LONG).show();// instead of a toast attempt to create a dialog displaying the network is unavailable
        }
    }

    private void toggleRefresh() {
        if(mProgressBar.getVisibility() == View.INVISIBLE){
            mProgressBar.setVisibility(View.VISIBLE);
            mRefreshImageView.setVisibility(View.INVISIBLE);
        }
        else{
            mProgressBar.setVisibility(View.INVISIBLE);
            mRefreshImageView.setVisibility(View.VISIBLE);
        }
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    private void updateDisplay() {
        Current current= mForecast.getCurrent();

        mTemperatureLabel.setText(String.format("%d", current.getTemperature()));// converts the double value to a string
        mTimeLabel.setText("At " + current.getFormattedTime() + " it will be");
        mHumidityValue.setText(current.getHumidity()+ "");
        mPrecipValue.setText(current.getPrecipChance()+ "%");
        mSummaryLabel.setText(current.getSummary());
        Drawable drawable= getResources().getDrawable(current.getIconId());
        mIconImageView.setImageDrawable(drawable);
    }

    private Forecast parseForecastDetails (String jsonData) throws JSONException{
        Forecast forecast= new Forecast();

        forecast.setCurrent(getCurrentDetails(jsonData));
        forecast.setHourlyForecast(getHourlyForecast(jsonData));
        forecast.setDailyForecast(getDailyForecast(jsonData));

        return forecast;
    }

    private Day[] getDailyForecast(String jsonData) throws JSONException {
        JSONObject forecast= new JSONObject(jsonData);
        String timezone= forecast.getString("timezone");
        JSONObject daily= forecast.getJSONObject("daily");
        JSONArray data= daily.getJSONArray("data");

        Day[] days= new Day[data.length()];

        for (int i= 0; i< data.length(); i++){
            JSONObject jsonDay= data.getJSONObject(i);
            Day day= new Day();

            day.setSummary(jsonDay.getString("summary"));
            day.setIcon(jsonDay.getString("icon"));
            day.setTemperatureMax(jsonDay.getDouble("temperatureMax"));
            day.setTime(jsonDay.getLong("time"));
            day.setTimezone(timezone);

            days[i]= day;
        }

        return days;
    }

    private Hour[] getHourlyForecast(String jsonData) throws JSONException{
        JSONObject forecast= new JSONObject(jsonData);
        String timezone= forecast.getString("timezone");
        JSONObject hourly= forecast.getJSONObject("hourly");
        JSONArray data= hourly.getJSONArray("data");

        Hour[] hours= new Hour[data.length()];

        for (int i= 0; i < data.length(); i++){
            JSONObject jsonHour= data.getJSONObject(i);
            Hour hour= new Hour();

            hour.setSummary(jsonHour.getString("summary"));
            hour.setTemperature(jsonHour.getDouble("temperature"));
            hour.setIcon(jsonHour.getString("icon"));
            hour.setTime(jsonHour.getLong("time"));
            hour.setTimezone(timezone);

            hours[i]= hour;
        }

        return hours;
    }

    private Current getCurrentDetails(String jsonData) throws JSONException{
        JSONObject forecast= new JSONObject(jsonData);
        String timezone= forecast.getString("timezone");
        Log.i(TAG, "From JSON: " + timezone);

        JSONObject currently= forecast.getJSONObject("currently");
        Current current = new Current();
        current.setHumidity(currently.getDouble("humidity"));
        current.setTime(currently.getLong("time"));
        current.setIcon(currently.getString("icon"));
        current.setPrecipChance(currently.getDouble("precipProbability"));
        current.setSummary(currently.getString("summary"));
        current.setTemperature(currently.getDouble("temperature"));
        current.setTimeZone(timezone);

        Log.d(TAG, current.getFormattedTime());

        return current;
    }

    private boolean isNetworkAvailable() {
        ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo= manager.getActiveNetworkInfo();
        boolean isAvailable= false;
        if(networkInfo != null && networkInfo.isConnected()){
            isAvailable= true;
        }
        return isAvailable;
    }

    private void alertUserAboutError() {
        AlertDialogFragment dialog= new AlertDialogFragment();
        dialog.show(getFragmentManager(), "error_dialog");
    }

    @OnClick  (R.id.dailyButton)
    public void startDailyActivity (View view){
        Intent intent= new Intent(this, DailyForecastActivity.class);
        intent.putExtra(DAILY_FORECAST, mForecast.getDailyForecast());
        startActivity(intent);
    }
    @OnClick (R.id.hourlyButton)
    public void startHourlyActivity (View view){
        Intent intent= new Intent(this, HourlyForecastActivity.class);
        intent.putExtra(HOURLY_FORECAST, mForecast.getHourlyForecast()); // bug may be in here
        startActivity(intent);

    }


}

here is the errors:

11-22 06:00:23.114 20220-20220/com.teamtreehouse.stormy E/AndroidRuntime: FATAL EXCEPTION: main Process: com.teamtreehouse.stormy, PID: 20220 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.teamtreehouse.stormy/com.teamtreehouse.stormy.ui.MainActivity}: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2661) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726) at android.app.ActivityThread.access$900(ActivityThread.java:172) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:145) at android.app.ActivityThread.main(ActivityThread.java:5835) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194) Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.support.v7.app.AppCompatDelegateImplV7.createSubDecor(AppCompatDelegateImplV7.java:310) at android.support.v7.app.AppCompatDelegateImplV7.ensureSubDecor(AppCompatDelegateImplV7.java:279) at android.support.v7.app.AppCompatDelegateImplV7.setContentView(AppCompatDelegateImplV7.java:253) at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:109) at com.teamtreehouse.stormy.ui.MainActivity.onCreate(MainActivity.java:61) at android.app.Activity.performCreate(Activity.java:6221) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2614) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2726)  at android.app.ActivityThread.access$900(ActivityThread.java:172)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1421)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:145)  at android.app.ActivityThread.main(ActivityThread.java:5835)  at java.lang.reflect.Method.invoke(Native Method)  at java.lang.reflect.Method.invoke(Method.java:372)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)

Build.gradle:

apply plugin: 'com.android.application'

android { compileSdkVersion 23 buildToolsVersion "23.0.1"

defaultConfig {
    applicationId "com.teamtreehouse.stormy"
    minSdkVersion 14
    targetSdkVersion 23
    versionCode 1
    versionName "1.0"
}
buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
    }
}

}

dependencies { compile fileTree(dir: 'libs', include: ['*.jar']) compile 'com.android.support:appcompat-v7:23.1.1' compile 'com.android.support:recyclerview-v7:23.1.1' compile 'com.squareup.okhttp:okhttp:2.5.0' compile 'com.jakewharton:butterknife:7.0.1' }

1 Answer

Daniel Hartin
Daniel Hartin
18,106 Points

Hi Jordan

Are you struggling with this still?

I have had this problem a few times with apps of mine, it was usually becuase I was trying to be clever with themes in the android manifest (I hate themes , I can never get them to work :))

I would check you android manifest for a line like the following:

android:theme="@android:style/Theme.Translucent.NoTitleBar.Fullscreen"

This could be either in the MainActivity section or the application section. The error is saying it should use an appCompat theme a useful stack overflow I found for my problem is here http://stackoverflow.com/questions/21814825/you-need-to-use-a-theme-appcompat-theme-or-descendant-with-this-activity (not sure if you are having the same problem or not)

Hopefully this can get you on the right track if nothing else

Daniel