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package de.danoeh.antennapod.activity;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.support.v7.app.ActionBar;
import android.support.v7.app.AppCompatActivity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import java.lang.ref.WeakReference;
import de.danoeh.antennapod.R;
import de.danoeh.antennapod.core.preferences.UserPreferences;
import de.danoeh.antennapod.preferences.PreferenceController;
/**
* PreferenceActivity for API 11+. In order to change the behavior of the preference UI, see
* PreferenceController.
*/
public class PreferenceActivity extends AppCompatActivity {
public static final String PARAM_RESOURCE = "resource";
private static WeakReference<PreferenceActivity> instance;
private PreferenceController preferenceController;
private final PreferenceController.PreferenceUI preferenceUI = new PreferenceController.PreferenceUI() {
private PreferenceFragment fragment;
@Override
public void setFragment(PreferenceFragment fragment) {
this.fragment = fragment;
}
@Override
public Preference findPreference(CharSequence key) {
return fragment.findPreference(key);
}
@Override
public Activity getActivity() {
return PreferenceActivity.this;
}
};
@Override
protected void onCreate(Bundle savedInstanceState) {
// This must be the FIRST thing we do, otherwise other code may not have the
// reference it needs
instance = new WeakReference<>(this);
setTheme(UserPreferences.getTheme());
super.onCreate(savedInstanceState);
ActionBar ab = getSupportActionBar();
if (ab != null) {
ab.setDisplayHomeAsUpEnabled(true);
}
// set up layout
FrameLayout root = new FrameLayout(this);
root.setId(R.id.content);
root.setLayoutParams(new FrameLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT));
setContentView(root);
// we need to create the PreferenceController before the MainFragment
// since the MainFragment depends on the preferenceController already being created
preferenceController = new PreferenceController(preferenceUI);
PreferenceFragment prefFragment = new MainFragment();
preferenceUI.setFragment(prefFragment);
Bundle args = new Bundle();
args.putInt(PARAM_RESOURCE, R.xml.preferences);
prefFragment.setArguments(args);
getFragmentManager().beginTransaction().replace(R.id.content, prefFragment).commit();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
preferenceController.onActivityResult(requestCode, resultCode, data);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
if (getFragmentManager().getBackStackEntryCount() == 0) {
finish();
} else {
getFragmentManager().popBackStack();
}
return true;
default:
return false;
}
}
public static class MainFragment extends PreferenceFragment {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
addPreferencesFromResource(getArguments().getInt(PARAM_RESOURCE));
PreferenceActivity activity = instance.get();
if (activity != null && activity.preferenceController != null) {
activity.preferenceUI.setFragment(this);
activity.preferenceController.onCreate(getArguments().getInt(PARAM_RESOURCE));
}
}
@Override
public void onResume() {
super.onResume();
PreferenceActivity activity = instance.get();
if(activity != null && activity.preferenceController != null) {
activity.setTitle(getTitle(getArguments().getInt(PARAM_RESOURCE)));
activity.preferenceUI.setFragment(this);
activity.preferenceController.onResume(getArguments().getInt(PARAM_RESOURCE));
}
}
private int getTitle(int preferences) {
switch (preferences) {
case R.xml.preferences_downloads:
return R.string.downloads_label;
case R.xml.preferences_playback:
return R.string.playback_pref;
case R.xml.preferences_storage:
return R.string.storage_pref;
case R.xml.preferences_user_interface:
return R.string.user_interface_label;
case R.xml.preferences_services:
return R.string.services_label;
case R.xml.preferences_various:
return R.string.various_pref;
default:
return R.string.settings_label;
}
}
@Override
public void onPause() {
PreferenceActivity activity = instance.get();
if(activity != null && activity.preferenceController != null) {
activity.preferenceUI.setFragment(this);
activity.preferenceController.onPause(getArguments().getInt(PARAM_RESOURCE));
}
super.onPause();
}
@Override
public void onStop() {
PreferenceActivity activity = instance.get();
if(activity != null && activity.preferenceController != null) {
activity.preferenceUI.setFragment(this);
activity.preferenceController.onStop(getArguments().getInt(PARAM_RESOURCE));
}
super.onStop();
}
}
}
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