onny/nextcompanion
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

implement list of rented bikes

Browse source
This commit is contained in:
ikarulus 2019-01-13 20:44:35 +01:00
parent 01ad943822
commit 6ff1f0e0c4
3 changed files with 88 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

67
app/src/main/java/com/example/hochi/nextcompanion/MainActivity.java
View file

@ -8,11 +8,22 @@ import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class MainActivity extends AppCompatActivity {
import org.json.JSONArray;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.Arrays;
public class MainActivity extends AppCompatActivity implements AsyncTaskCallbacks<String> {
private RequestHandler getBikesTask = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
@ -45,6 +56,9 @@ public class MainActivity extends AppCompatActivity {
Intent intent = new Intent(this, LoginActivity.class);
startActivity(intent);
}
else {
reloadBikeList();
}
}
@Override
@ -69,4 +83,55 @@ public class MainActivity extends AppCompatActivity {
return super.onOptionsItemSelected(item);
}
protected void reloadBikeList() {
//get loginkey
SharedPreferences sharedPref = getSharedPreferences("persistence", MODE_PRIVATE);
String defaultValue = "nokey";
String loginKey = sharedPref.getString("loginKey", defaultValue);
String[] params = {
"apikey=", getString(R.string.apikey),
"loginkey=", loginKey
};
getBikesTask = new RequestHandler(this, "POST",
"api/getOpenRentals.json", params);
getBikesTask.execute((Void) null);
}
@Override
public void onTaskComplete(String response) {
if (!response.isEmpty()) {
final ArrayList<String> list = new ArrayList<>();
try {
JSONObject jObject = new JSONObject(response);
JSONArray bikesArray = jObject.getJSONArray("rentalCollection");
for (int i = 0; i < bikesArray.length(); i++) {
String entry;
JSONObject bike = bikesArray.getJSONObject(i);
entry = "Bike " + bike.getString("bike")
+ " with lock code " + bike.getString("code");
list.add(entry);
}
Log.d("DEBUG", list.toString());
} catch (Exception e) {
e.printStackTrace();
}
final ListView listview = findViewById(R.id.listview);
final ArrayAdapter<String> adapter = new ArrayAdapter<>(this,
android.R.layout.simple_list_item_1, list);
listview.setAdapter(adapter);
listview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, final View view, int position, long id) {
//TODO: Return bike
}
});
}
else {
//TODO: implement error handling
}
}
}

29
app/src/main/java/com/example/hochi/nextcompanion/RequestHandler.java
View file

@ -15,10 +15,14 @@ import java.net.URLEncoder;
public class RequestHandler extends AsyncTask<Void, Void, String> {
private String mHTTPmethod;
private String mEndpoint;
private AsyncTaskCallbacks<String> callback;
private String[] mCredentials;
RequestHandler(String[] credentials, AsyncTaskCallbacks<String> act) {
RequestHandler(AsyncTaskCallbacks<String> act, String HTTPmethod, String endpoint, String[] credentials) {
mHTTPmethod = HTTPmethod;
mEndpoint = endpoint;
mCredentials = credentials;
callback = act;
}
@ -36,20 +40,21 @@ public class RequestHandler extends AsyncTask<Void, Void, String> {
HttpURLConnection connection = null;
try {
//Create connection
URL url = new URL("https://api.nextbike.net/api/login.json");
URL url = new URL("https://api.nextbike.net/" + mEndpoint);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestMethod(mHTTPmethod);
if(mHTTPmethod.equals("POST")) {
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length", "" +
Integer.toString(urlParameters.toString().getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches (false);
connection.setDoInput(true);
connection.setDoOutput(true);
connection.setRequestProperty("Content-Length", "" +
Integer.toString(urlParameters.toString().getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
}
//Send request
DataOutputStream wr = new DataOutputStream (
connection.getOutputStream ());

13
app/src/main/res/layout/content_main.xml
View file

@ -8,13 +8,10 @@
tools:context=".MainActivity"
tools:showIn="@layout/activity_main">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.constraint.ConstraintLayout>