Android Assignment 05

Introduction to API Calls and Image Loading

Stuttgart Media University

Please conduct the following tasks alone. For implementation details you can refer to the lecture slides or the Android developer website. Please do not hesitate to ask me or the tutor if you have any questions.

1 Tasks

Reuse your assignment4 code and copy it to assignment5 folder.
Create a new OMDb API Key here http://www.omdbapi.com/apikey.aspx
Replace your static Movie Data source with REST API Calls to OpenMovieDB
Use this get call for your search http://www.omdbapi.com/?apikey=YOURKEY&s=Matrix where you replace "YOURKEY" with your own key and "Matrix" with the search string input from R.id.searchMovieTitleEditText
Add a poster image to your search result list and saved movies list
Implement Glide to load the poster in your ViewHolder

2 Views

Movie Search

Home Activity

3 Espresso Test

Hint: The test is expecting a empty app state. If you have saved movies on app start, the test will fail.

package de.hdmstuttgart.movietracker;


import android.view.View;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;
import androidx.test.core.app.ActivityScenario;
import androidx.test.espresso.contrib.RecyclerViewActions;
import androidx.test.espresso.matcher.BoundedMatcher;
import androidx.test.ext.junit.rules.ActivityScenarioRule;
import androidx.test.filters.LargeTest;
import androidx.test.runner.AndroidJUnit4;

import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;

import static androidx.test.espresso.Espresso.onView;
import static androidx.test.espresso.action.ViewActions.click;
import static androidx.test.espresso.action.ViewActions.closeSoftKeyboard;
import static androidx.test.espresso.action.ViewActions.replaceText;
import static androidx.test.espresso.assertion.ViewAssertions.matches;
import static androidx.test.espresso.core.internal.deps.guava.base.Preconditions.checkNotNull;
import static androidx.test.espresso.matcher.ViewMatchers.hasDescendant;
import static androidx.test.espresso.matcher.ViewMatchers.withId;
import static androidx.test.espresso.matcher.ViewMatchers.withText;

@LargeTest
@RunWith(AndroidJUnit4.class)
public class Assignment5Test {

    @Rule
    public ActivityScenarioRule<MainActivity> activityScenarioRule
            = new ActivityScenarioRule<>(MainActivity.class);

    @Test
    public void assignment5Test() {

        onView(withId(R.id.searchBtn))
                .perform(click());

        onView(withId(R.id.searchMovieTitleEditText))
                .perform(replaceText("Matrix"), closeSoftKeyboard());

        onView(withId(R.id.searchMovieTitleButton))
                .perform(click());

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        onView(withId(R.id.searchRecyclerView))
                .check(matches(atPosition(0, hasDescendant(withText("The Matrix")))));

        onView(withId(R.id.searchRecyclerView))
                .perform(RecyclerViewActions.actionOnItemAtPosition(0, click()));

        onView(withId(R.id.homeRecyclerView))
                .check(matches(atPosition(0, hasDescendant(withText("The Matrix")))));

        activityScenarioRule.getScenario().close();

        ActivityScenario.launch(MainActivity.class);

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        onView(withId(R.id.homeRecyclerView))
                .check(matches(atPosition(0, hasDescendant(withText("The Matrix")))));

        onView(withId(R.id.searchBtn))
                .perform(click());

        onView(withId(R.id.searchMovieTitleEditText))
                .perform(replaceText("her"), closeSoftKeyboard());

        onView(withId(R.id.searchMovieTitleButton))
                .perform(click());

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        onView(withId(R.id.searchRecyclerView))
                .check(matches(atPosition(0, hasDescendant(withText("Her")))));

        onView(withId(R.id.searchRecyclerView))
                .perform(RecyclerViewActions.actionOnItemAtPosition(0, click()));

        onView(withId(R.id.homeRecyclerView))
                .check(matches(atPosition(1, hasDescendant(withText("Her")))));

        activityScenarioRule.getScenario().close();

        ActivityScenario.launch(MainActivity.class);

        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        onView(withId(R.id.homeRecyclerView))
                .check(matches(atPosition(0, hasDescendant(withText("The Matrix")))));

        onView(withId(R.id.homeRecyclerView))
                .check(matches(atPosition(1, hasDescendant(withText("Her")))));

    }

    public static Matcher<View> atPosition(final int position, @NonNull final Matcher<View> itemMatcher) {
        checkNotNull(itemMatcher);
        return new BoundedMatcher<View, RecyclerView>(RecyclerView.class) {
            @Override
            public void describeTo(Description description) {
                description.appendText("has item at position " + position + ": ");
                itemMatcher.describeTo(description);
            }

            @Override
            protected boolean matchesSafely(final RecyclerView view) {
                RecyclerView.ViewHolder viewHolder = view.findViewHolderForAdapterPosition(position);
                if (viewHolder == null) {
                    // has no item on such position
                    return false;
                }
                return itemMatcher.matches(viewHolder.itemView);
            }
        };
    }
}

4 Gradle Dependencies

dependencies {

    implementation 'androidx.appcompat:appcompat:1.3.1'
    implementation 'com.google.android.material:material:1.4.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.1'
    implementation 'androidx.recyclerview:recyclerview:1.2.1'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
    androidTestImplementation 'androidx.test.espresso:espresso-contrib:3.4.0'
    androidTestImplementation 'androidx.test:rules:1.4.0'

    implementation 'androidx.room:room-runtime:2.3.0'
    annotationProcessor 'androidx.room:room-compiler:2.3.0'

    implementation 'com.github.bumptech.glide:glide:4.11.0'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'

    implementation "com.squareup.retrofit2:converter-gson:2.9.0"
    implementation "com.squareup.retrofit2:retrofit:2.9.0"
}