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SettingsActivity.java
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SettingsActivity.java
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package com.blogspot.shudiptotrafder.soilscience.settings;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentTransaction;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.preference.PreferenceFragmentCompat;
import android.support.v7.preference.PreferenceScreen;
import android.support.v7.widget.Toolbar;
import android.view.MenuItem;
import com.blogspot.shudiptotrafder.soilscience.R;
import com.blogspot.shudiptotrafder.soilscience.theme.ThemeUtils;
public class SettingsActivity extends AppCompatActivity implements
PreferenceFragmentCompat.OnPreferenceStartScreenCallback {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ThemeUtils.initialize(this);
setContentView(R.layout.activity_settings);
Toolbar toolbar = (Toolbar) findViewById(R.id.settings_toolbar);
setSupportActionBar(toolbar);
FragmentManager fragmentManager = getSupportFragmentManager();
Fragment fragment;
if (savedInstanceState == null) {
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragment = new SettingsFragment().newInstance("Advanced_Setting");
fragmentTransaction.add(R.id.settingsContainer, fragment);
fragmentTransaction.commit();
}
if (getSupportActionBar() != null) {
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
//buy calling android.R.id.home
int id = item.getItemId();
if (id == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
@Override
public boolean onPreferenceStartScreen(PreferenceFragmentCompat caller, PreferenceScreen preferenceScreen) {
//Log.d(TAG, "callback called to attach the preference sub screen");
FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
AdvanceSettingsFragment fragment = AdvanceSettingsFragment.newInstance("Advanced Settings Subscreen");
BackupSettings backupSettings = BackupSettings.newInstance("BackUp Settings");
Bundle args = new Bundle();
//Defining the sub screen as new root for the subscreen
args.putString(PreferenceFragmentCompat.ARG_PREFERENCE_ROOT, preferenceScreen.getKey());
fragment.setArguments(args);
if (preferenceScreen.getKey().equalsIgnoreCase("backup")) {
ft.replace(R.id.settingsContainer, backupSettings, preferenceScreen.getKey());
} else {
ft.replace(R.id.settingsContainer, fragment, preferenceScreen.getKey());
}
ft.addToBackStack(null);
ft.commit();
return true;
}
}