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/* * Copyright (C) 2011 The Android Open Source Project */*www .j av a 2s. c o m*/ * 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.example.android.hcgallery; import android.animation.Animator; import android.animation.AnimatorListenerAdapter; import android.animation.ObjectAnimator; import android.animation.PropertyValuesHolder; import android.animation.ValueAnimator; import android.app.ActionBar; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.DialogFragment; import android.app.FragmentManager; import android.app.FragmentTransaction; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.DialogInterface; import android.content.Intent; import android.content.res.Configuration; import android.content.res.Resources; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.os.Bundle; import android.os.StrictMode; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.RemoteViews; public class MainActivity extends Activity implements ActionBar.TabListener { private static final int NOTIFICATION_DEFAULT = 1; private static final String ACTION_DIALOG = "com.example.android.hcgallery.action.DIALOG"; private View mActionBarView; private Animator mCurrentTitlesAnimator; private String[] mToggleLabels = {"Show Titles", "Hide Titles"}; private int mLabelIndex = 1; private int mThemeId = -1; class OnDirectoryChanged implements INotifyDirectoryChanged { @Override public void addingNew(DirectoryCategory category) { ActionBar bar = getActionBar(); bar.addTab(bar.newTab().setText(category.getName()) .setTabListener(getActivity())); } } @Override public void onCreate(Bundle savedInstanceState) { StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder() .detectActivityLeaks() .penaltyLog().build()); super.onCreate(savedInstanceState); if(savedInstanceState != null && savedInstanceState.getInt("theme", -1) != -1) { mThemeId = savedInstanceState.getInt("theme"); this.setTheme(mThemeId); } setContentView(R.layout.main); Directory.initializeDirectory(new OnDirectoryChanged()); ActionBar bar = getActionBar(); int i; for (i = 0; i < Directory.getCategoryCount(); i++) { bar.addTab(bar.newTab().setText(Directory.getCategory(i).getName()) .setTabListener(this)); } mActionBarView = getLayoutInflater().inflate( R.layout.action_bar_custom, null); bar.setCustomView(mActionBarView); bar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_USE_LOGO); bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); bar.setDisplayShowHomeEnabled(true); // If category is not saved to the savedInstanceState, // 0 is returned by default. if(savedInstanceState != null) { int category = savedInstanceState.getInt("category"); bar.selectTab(bar.getTabAt(category)); } } public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) { TitlesFragment titleFrag = (TitlesFragment) getFragmentManager() .findFragmentById(R.id.frag_title); titleFrag.populateTitles(tab.getPosition()); titleFrag.selectPosition(0); } public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) { } public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) { } @Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main_menu, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.camera: Intent intent = new Intent(this, CameraSample.class); intent.putExtra("theme", mThemeId); startActivity(intent); return true; case R.id.toggleTitles: toggleVisibleTitles(); return true; case R.id.addNewCategory: Directory.createNewCategory("?????", new DirectoryEntry("??????", R.drawable.red_balloon), new DirectoryEntry("??????", R.drawable.green_balloon)); return true; case R.id.toggleTheme: if (mThemeId == R.style.AppTheme_Dark) { mThemeId = R.style.AppTheme_Light; } else { mThemeId = R.style.AppTheme_Dark; } this.recreate(); return true; case R.id.showDialog: showDialog("This is indeed an awesome dialog."); return true; case R.id.showStandardNotification: showNotification(false); return true; case R.id.showCustomNotification: showNotification(true); return true; default: return super.onOptionsItemSelected(item); } } public void toggleVisibleTitles() { // Use these for custom animations. final FragmentManager fm = getFragmentManager(); final TitlesFragment f = (TitlesFragment) fm .findFragmentById(R.id.frag_title); final View titlesView = f.getView(); mLabelIndex = 1 - mLabelIndex; // Determine if we're in portrait, and whether we're showing or hiding the titles // with this toggle. final boolean isPortrait = getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT; final boolean shouldShow = f.isHidden() || mCurrentTitlesAnimator != null; // Cancel the current titles animation if there is one. if (mCurrentTitlesAnimator != null) mCurrentTitlesAnimator.cancel(); // Begin setting up the object animator. We'll animate the bottom or right edge of the // titles view, as well as its alpha for a fade effect. ObjectAnimator objectAnimator = ObjectAnimator.ofPropertyValuesHolder( titlesView, PropertyValuesHolder.ofInt( isPortrait ? "bottom" : "right", shouldShow ? getResources().getDimensionPixelSize(R.dimen.titles_size) : 0), PropertyValuesHolder.ofFloat("alpha", shouldShow ? 1 : 0) ); // At each step of the animation, we'll perform layout by calling setLayoutParams. final ViewGroup.LayoutParams lp = titlesView.getLayoutParams(); objectAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() { public void onAnimationUpdate(ValueAnimator valueAnimator) { // *** WARNING ***: triggering layout at each animation frame highly impacts // performance so you should only do this for simple layouts. More complicated // layouts can be better served with individual animations on child views to // avoid the performance penalty of layout. if (isPortrait) { lp.height = (Integer) valueAnimator.getAnimatedValue(); } else { lp.width = (Integer) valueAnimator.getAnimatedValue(); } titlesView.setLayoutParams(lp); } }); if (shouldShow) { fm.beginTransaction().show(f).commit(); objectAnimator.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animator) { mCurrentTitlesAnimator = null; } }); } else { objectAnimator.addListener(new AnimatorListenerAdapter() { boolean canceled; @Override public void onAnimationCancel(Animator animation) { canceled = true; super.onAnimationCancel(animation); } @Override public void onAnimationEnd(Animator animator) { if (canceled) return; mCurrentTitlesAnimator = null; fm.beginTransaction().hide(f).commit(); } }); } // Start the animation. objectAnimator.start(); mCurrentTitlesAnimator = objectAnimator; invalidateOptionsMenu(); // Manually trigger onNewIntent to check for ACTION_DIALOG. onNewIntent(getIntent()); } @Override protected void onNewIntent(Intent intent) { if (ACTION_DIALOG.equals(intent.getAction())) { showDialog(intent.getStringExtra(Intent.EXTRA_TEXT)); } } void showDialog(String text) { // DialogFragment.show() will take care of adding the fragment // in a transaction. We also want to remove any currently showing // dialog, so make our own transaction and take care of that here. FragmentTransaction ft = getFragmentManager().beginTransaction(); DialogFragment newFragment = MyDialogFragment.newInstance(text); // Show the dialog. newFragment.show(ft, "dialog"); } @SuppressWarnings("deprecation") void showNotification(boolean custom) { final Resources res = getResources(); final NotificationManager notificationManager = (NotificationManager) getSystemService( NOTIFICATION_SERVICE); Notification.Builder builder = new Notification.Builder(this) .setSmallIcon(R.drawable.ic_stat_notify_example) .setAutoCancel(true) .setTicker(getString(R.string.notification_text)) .setContentIntent(getDialogPendingIntent("Tapped the notification entry.")); if (custom) { // Sets a custom content view for the notification, including an image button. RemoteViews layout = new RemoteViews(getPackageName(), R.layout.notification); layout.setTextViewText(R.id.notification_title, getString(R.string.app_name)); layout.setOnClickPendingIntent(R.id.notification_button, getDialogPendingIntent("Tapped the 'dialog' button in the notification.")); builder.setContent(layout); // Notifications in Android 3.0 now have a standard mechanism for displaying large // bitmaps such as contact avatars. Here, we load an example image and resize it to the // appropriate size for large bitmaps in notifications. Bitmap largeIconTemp = BitmapFactory.decodeResource(res, R.drawable.notification_default_largeicon); Bitmap largeIcon = Bitmap.createScaledBitmap( largeIconTemp, res.getDimensionPixelSize(android.R.dimen.notification_large_icon_width), res.getDimensionPixelSize(android.R.dimen.notification_large_icon_height), false); largeIconTemp.recycle(); builder.setLargeIcon(largeIcon); } else { builder .setNumber(7) // An example number. .setContentTitle(getString(R.string.app_name)) .setContentText(getString(R.string.notification_text)); } notificationManager.notify(NOTIFICATION_DEFAULT, builder.getNotification()); } PendingIntent getDialogPendingIntent(String dialogText) { return PendingIntent.getActivity( this, dialogText.hashCode(), // Otherwise previous PendingIntents with the same // requestCode may be overwritten. new Intent(ACTION_DIALOG) .putExtra(Intent.EXTRA_TEXT, dialogText) .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK), 0); } @Override public boolean onPrepareOptionsMenu(Menu menu) { menu.getItem(1).setTitle(mToggleLabels[mLabelIndex]); return true; } @Override public void onSaveInstanceState (Bundle outState) { super.onSaveInstanceState(outState); ActionBar bar = getActionBar(); int category = bar.getSelectedTab().getPosition(); outState.putInt("category", category); outState.putInt("theme", mThemeId); } public static class MyDialogFragment extends DialogFragment { public static MyDialogFragment newInstance(String title) { MyDialogFragment frag = new MyDialogFragment(); Bundle args = new Bundle(); args.putString("text", title); frag.setArguments(args); return frag; } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { String text = getArguments().getString("text"); return new AlertDialog.Builder(getActivity()) .setTitle("A Dialog of Awesome") .setMessage(text) .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { } } ) .create(); } } private MainActivity getActivity() { return this; } }