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package com.mapbox.mapboxsdk.testapp.activity;
import android.content.ComponentName;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.StringRes;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import com.mapbox.mapboxsdk.testapp.R;
import com.mapbox.mapboxsdk.testapp.adapter.FeatureAdapter;
import com.mapbox.mapboxsdk.testapp.adapter.FeatureSectionAdapter;
import com.mapbox.mapboxsdk.testapp.model.activity.Feature;
import com.mapbox.mapboxsdk.testapp.utils.ItemClickSupport;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import timber.log.Timber;
/**
* Activity shown when application is started
* <p>
* This activity will generate data for RecyclerView based on the AndroidManifest entries.
* It uses tags as category and description to order the different entries.
* </p>
*/
public class FeatureOverviewActivity extends AppCompatActivity {
private static final String KEY_STATE_FEATURES = "featureList";
private RecyclerView recyclerView;
private FeatureSectionAdapter sectionAdapter;
private List<Feature> features;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_feature_overview);
recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
recyclerView.addOnItemTouchListener(new RecyclerView.SimpleOnItemTouchListener());
recyclerView.setHasFixedSize(true);
ItemClickSupport.addTo(recyclerView).setOnItemClickListener((recyclerView, position, view) -> {
if (!sectionAdapter.isSectionHeaderPosition(position)) {
int itemPosition = sectionAdapter.getConvertedPosition(position);
Feature feature = features.get(itemPosition);
startFeature(feature);
}
});
if (savedInstanceState == null) {
loadFeatures();
} else {
features = savedInstanceState.getParcelableArrayList(KEY_STATE_FEATURES);
onFeaturesLoaded(features);
}
}
private void loadFeatures() {
try {
new LoadFeatureTask().execute(
getPackageManager().getPackageInfo(getPackageName(),
PackageManager.GET_ACTIVITIES | PackageManager.GET_META_DATA));
} catch (PackageManager.NameNotFoundException exception) {
Timber.e(exception, "Could not resolve package info");
}
}
private void onFeaturesLoaded(List<Feature> featuresList) {
features = featuresList;
List<FeatureSectionAdapter.Section> sections = new ArrayList<>();
String currentCat = "";
for (int i = 0; i < features.size(); i++) {
String category = features.get(i).getCategory();
if (!currentCat.equals(category)) {
sections.add(new FeatureSectionAdapter.Section(i, category));
currentCat = category;
}
}
FeatureSectionAdapter.Section[] dummy = new FeatureSectionAdapter.Section[sections.size()];
sectionAdapter = new FeatureSectionAdapter(
this, R.layout.section_main_layout, R.id.section_text, new FeatureAdapter(features));
sectionAdapter.setSections(sections.toArray(dummy));
recyclerView.setAdapter(sectionAdapter);
}
private void startFeature(Feature feature) {
Intent intent = new Intent();
intent.setComponent(new ComponentName(getPackageName(), feature.getName()));
startActivity(intent);
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putParcelableArrayList(KEY_STATE_FEATURES, (ArrayList<Feature>) features);
}
private class LoadFeatureTask extends AsyncTask<PackageInfo, Void, List<Feature>> {
@Override
protected List<Feature> doInBackground(PackageInfo... params) {
List<Feature> features = new ArrayList<>();
PackageInfo app = params[0];
String packageName = getApplicationContext().getPackageName();
String metaDataKey = getString(R.string.category);
for (ActivityInfo info : app.activities) {
if (info.labelRes != 0 && info.name.startsWith(packageName)
&& !info.name.equals(FeatureOverviewActivity.class.getName())) {
String label = getString(info.labelRes);
String description = resolveString(info.descriptionRes);
String category = resolveMetaData(info.metaData, metaDataKey);
features.add(new Feature(info.name, label, description, category));
}
}
if (!features.isEmpty()) {
Comparator<Feature> comparator = (lhs, rhs) -> {
int result = lhs.getCategory().compareToIgnoreCase(rhs.getCategory());
if (result == 0) {
result = lhs.getLabel().compareToIgnoreCase(rhs.getLabel());
}
return result;
};
Collections.sort(features, comparator);
}
return features;
}
private String resolveMetaData(Bundle bundle, String key) {
String category = null;
if (bundle != null) {
category = bundle.getString(key);
}
return category;
}
private String resolveString(@StringRes int stringRes) {
try {
return getString(stringRes);
} catch (Resources.NotFoundException exception) {
return "-";
}
}
@Override
protected void onPostExecute(List<Feature> features) {
super.onPostExecute(features);
onFeaturesLoaded(features);
}
}
}
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