Java tutorial
/* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.infine.android.devoxx.ui; import android.content.Intent; import android.os.Bundle; import android.support.v4.app.FragmentManager; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.TabHost; import android.widget.TabWidget; import android.widget.TextView; import com.infine.android.devoxx.R; import com.infine.android.devoxx.provider.ScheduleContract.Sessions; import com.infine.android.devoxx.provider.ScheduleContract.Vendors; import com.infine.android.devoxx.ui.phone.SessionDetailActivity; /** * An activity that shows the user's starred sessions and sandbox companies. This activity can be * either single or multi-pane, depending on the device configuration. We want the multi-pane * support that {@link BaseMultiPaneActivity} offers, so we inherit from it instead of * {@link BaseSinglePaneActivity}. */ public class StarredActivity extends BaseMultiPaneActivity { public static final String TAG_SESSIONS = "sessions"; public static final String TAG_VENDORS = "vendors"; private TabHost mTabHost; private TabWidget mTabWidget; private SessionsFragment mSessionsFragment; // private VendorsFragment mVendorsFragment; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_starred); getActivityHelper().setupActionBar(getTitle(), 0); setupContent(); // mTabHost = (TabHost) findViewById(android.R.id.tabhost); // mTabWidget = (TabWidget) findViewById(android.R.id.tabs); // mTabHost.setup(); // // setupSessionsTab(); // setupVendorsTab(); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); getActivityHelper().setupSubActivity(); ViewGroup detailContainer = (ViewGroup) findViewById(R.id.fragment_container_starred_detail); if (detailContainer != null && detailContainer.getChildCount() > 1) { findViewById(android.R.id.empty).setVisibility(View.GONE); } } private void setupContent() { FrameLayout fragmentContainer = new FrameLayout(this); fragmentContainer.setId(R.id.fragment_sessions); fragmentContainer.setLayoutParams( new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); ((ViewGroup) findViewById(R.id.starredcontent)).addView(fragmentContainer); final Intent intent = new Intent(Intent.ACTION_VIEW, Sessions.CONTENT_STARRED_URI); final FragmentManager fm = getSupportFragmentManager(); mSessionsFragment = (SessionsFragment) fm.findFragmentByTag("sessions"); if (mSessionsFragment == null) { mSessionsFragment = new SessionsFragment(); mSessionsFragment.setArguments(intentToFragmentArguments(intent)); fm.beginTransaction().add(R.id.fragment_sessions, mSessionsFragment, "sessions").commit(); } } /** * Build and add "sessions" tab. */ private void setupSessionsTab() { // TODO: this is very inefficient and messy, clean it up FrameLayout fragmentContainer = new FrameLayout(this); fragmentContainer.setId(R.id.fragment_sessions); fragmentContainer.setLayoutParams( new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); ((ViewGroup) findViewById(android.R.id.tabcontent)).addView(fragmentContainer); final Intent intent = new Intent(Intent.ACTION_VIEW, Sessions.CONTENT_STARRED_URI); final FragmentManager fm = getSupportFragmentManager(); mSessionsFragment = (SessionsFragment) fm.findFragmentByTag("sessions"); if (mSessionsFragment == null) { mSessionsFragment = new SessionsFragment(); mSessionsFragment.setArguments(intentToFragmentArguments(intent)); fm.beginTransaction().add(R.id.fragment_sessions, mSessionsFragment, "sessions").commit(); } // Sessions content comes from reused activity mTabHost.addTab(mTabHost.newTabSpec(TAG_SESSIONS).setIndicator(buildIndicator(R.string.starred_sessions)) .setContent(R.id.fragment_sessions)); } /** * Build and add "vendors" tab. */ private void setupVendorsTab() { // TODO: this is very inefficient and messy, clean it up FrameLayout fragmentContainer = new FrameLayout(this); fragmentContainer.setId(R.id.fragment_speakers); fragmentContainer.setLayoutParams( new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT)); ((ViewGroup) findViewById(android.R.id.tabcontent)).addView(fragmentContainer); final Intent intent = new Intent(Intent.ACTION_VIEW, Vendors.CONTENT_STARRED_URI); final FragmentManager fm = getSupportFragmentManager(); // mVendorsFragment = (VendorsFragment) fm.findFragmentByTag("vendors"); // if (mVendorsFragment == null) { // mVendorsFragment = new VendorsFragment(); // mVendorsFragment.setArguments(intentToFragmentArguments(intent)); // fm.beginTransaction() // .add(R.id.fragment_speakers, mVendorsFragment, "vendors") // .commit(); // } // Vendors content comes from reused activity mTabHost.addTab(mTabHost.newTabSpec(TAG_VENDORS).setIndicator(buildIndicator(R.string.starred_speakers)) .setContent(R.id.fragment_speakers)); } /** * Build a {@link View} to be used as a tab indicator, setting the requested string resource as * its label. */ private View buildIndicator(int textRes) { final TextView indicator = (TextView) getLayoutInflater().inflate(R.layout.tab_indicator, mTabWidget, false); indicator.setText(textRes); return indicator; } @Override public FragmentReplaceInfo onSubstituteFragmentForActivityLaunch(String activityClassName) { if (findViewById(R.id.fragment_container_starred_detail) != null) { // The layout we currently have has a detail container, we can add fragments there. findViewById(android.R.id.empty).setVisibility(View.GONE); if (SessionDetailActivity.class.getName().equals(activityClassName)) { clearSelectedItems(); return new FragmentReplaceInfo(SessionDetailFragment.class, "session_detail", R.id.fragment_container_starred_detail); } } return null; } private void clearSelectedItems() { if (mSessionsFragment != null) { mSessionsFragment.clearCheckedPosition(); } // if (mVendorsFragment != null) { // mVendorsFragment.clearCheckedPosition(); // } } }