samples/ApiDemos/src/com/example/android/apis/view/OverscanActivity.java - platform/development - Git at Google

 /*
  * Copyright (C) 2011 The Android Open Source Project
  *
  * 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.apis.view;

 import android.app.ActionBar;
 import android.app.Activity;
 import android.app.FragmentTransaction;
 import android.app.ActionBar.Tab;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.Bundle;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
 import android.view.ActionMode;
 import android.view.KeyEvent;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.Window;
 import android.view.WindowManager;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 import android.widget.ImageView;
 import android.widget.SearchView;
 import android.widget.ShareActionProvider;
 import android.widget.TextView;
 import android.widget.Toast;
 import android.widget.SearchView.OnQueryTextListener;

 import com.example.android.apis.R;

 /**
  * This activity demonstrates some of the available ways to reduce the size or visual contrast of
  * the system decor, in order to better focus the user's attention or use available screen real
  * estate on the task at hand.
  */
 public class OverscanActivity extends Activity
         implements OnQueryTextListener, ActionBar.TabListener {
     public static class IV extends ImageView implements View.OnSystemUiVisibilityChangeListener {
         private OverscanActivity mActivity;
         private ActionMode mActionMode;
         public IV(Context context) {
             super(context);
         }
         public IV(Context context, AttributeSet attrs) {
             super(context, attrs);
         }
         public void setActivity(OverscanActivity act) {
             setOnSystemUiVisibilityChangeListener(this);
             mActivity = act;
         }
         @Override
         public void onSizeChanged(int w, int h, int oldw, int oldh) {
             mActivity.refreshSizes();
         }
         @Override
         public void onSystemUiVisibilityChange(int visibility) {
             mActivity.updateCheckControls();
             mActivity.refreshSizes();
         }

         private class MyActionModeCallback implements ActionMode.Callback {
             @Override public boolean onCreateActionMode(ActionMode mode, Menu menu) {
                 mode.setTitle("My Action Mode!");
                 mode.setSubtitle(null);
                 mode.setTitleOptionalHint(false);
                 menu.add("Sort By Size").setIcon(android.R.drawable.ic_menu_sort_by_size);
                 menu.add("Sort By Alpha").setIcon(android.R.drawable.ic_menu_sort_alphabetically);
                 return true;
             }

             @Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
                 return true;
             }

             @Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
                 return true;
             }

             @Override public void onDestroyActionMode(ActionMode mode) {
                 mActionMode = null;
                 mActivity.clearActionMode();
             }
         }

         public void startActionMode() {
             if (mActionMode == null) {
                 ActionMode.Callback cb = new MyActionModeCallback();
                 mActionMode = startActionMode(cb);
             }
         }

         public void stopActionMode() {
             if (mActionMode != null) {
                 mActionMode.finish();
             }
         }
     }

     private void setFullscreen(boolean on) {
         Window win = getWindow();
         WindowManager.LayoutParams winParams = win.getAttributes();
         final int bits = WindowManager.LayoutParams.FLAG_FULLSCREEN;
         if (on) {
             winParams.flags |=  bits;
         } else {
             winParams.flags &= ~bits;
         }
         win.setAttributes(winParams);
     }

     private void setOverscan(boolean on) {
         Window win = getWindow();
         WindowManager.LayoutParams winParams = win.getAttributes();
         final int bits = WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN;
         if (on) {
             winParams.flags |=  bits;
         } else {
             winParams.flags &= ~bits;
         }
         win.setAttributes(winParams);
     }

     private String getDisplaySize() {
         DisplayMetrics dm = getResources().getDisplayMetrics();
         return String.format("DisplayMetrics = (%d x %d)", dm.widthPixels, dm.heightPixels);
     }
     private String getViewSize() {
         return String.format("View = (%d,%d - %d,%d)",
                 mImage.getLeft(), mImage.getTop(),
                 mImage.getRight(), mImage.getBottom());
     }
     void refreshSizes() {
         mMetricsText.setText(getDisplaySize() + " " + getViewSize());
     }

     static int TOAST_LENGTH = 500;
     IV mImage;
     CheckBox[] mCheckControls = new CheckBox[6];
     int[] mCheckFlags = new int[] { View.SYSTEM_UI_FLAG_LOW_PROFILE,
             View.SYSTEM_UI_FLAG_FULLSCREEN, View.SYSTEM_UI_FLAG_HIDE_NAVIGATION,
             View.SYSTEM_UI_FLAG_LAYOUT_STABLE, View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN,
             View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
     };
     TextView mMetricsText;

     public OverscanActivity() {
     }

     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         getWindow().requestFeature(Window.FEATURE_ACTION_BAR_OVERLAY);

         setContentView(R.layout.overscan);
         mImage = (IV) findViewById(R.id.image);
         mImage.setActivity(this);

         CompoundButton.OnCheckedChangeListener checkChangeListener
                 = new CompoundButton.OnCheckedChangeListener() {
             @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                 updateSystemUi();
             }
         };
         mCheckControls[0] = (CheckBox) findViewById(R.id.modeLowProfile);
         mCheckControls[1] = (CheckBox) findViewById(R.id.modeFullscreen);
         mCheckControls[2] = (CheckBox) findViewById(R.id.modeHideNavigation);
         mCheckControls[3] = (CheckBox) findViewById(R.id.layoutStable);
         mCheckControls[4] = (CheckBox) findViewById(R.id.layoutFullscreen);
         mCheckControls[5] = (CheckBox) findViewById(R.id.layoutHideNavigation);
         for (int i=0; i<mCheckControls.length; i++) {
             mCheckControls[i].setOnCheckedChangeListener(checkChangeListener);
         }
         ((CheckBox) findViewById(R.id.windowFullscreen)).setOnCheckedChangeListener(
                 new CompoundButton.OnCheckedChangeListener() {
                     @Override
                     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                         setFullscreen(isChecked);
                     }
                 }
         );
         ((CheckBox) findViewById(R.id.windowOverscan)).setOnCheckedChangeListener(
                 new CompoundButton.OnCheckedChangeListener() {
                     @Override
                     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                         setOverscan(isChecked);
                     }
                 }
         );
         ((CheckBox) findViewById(R.id.windowHideActionBar)).setOnCheckedChangeListener(
                 new CompoundButton.OnCheckedChangeListener() {
                     @Override
                     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                         if (isChecked) {
                             getActionBar().hide();
                         } else {
                             getActionBar().show();
                         }
                     }
                 }
         );
         ((CheckBox) findViewById(R.id.windowActionMode)).setOnCheckedChangeListener(
                 new CompoundButton.OnCheckedChangeListener() {
                     @Override
                     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                         if (isChecked) {
                             mImage.startActionMode();
                         } else {
                             mImage.stopActionMode();
                         }
                     }
                 }
         );
         mMetricsText = (TextView) findViewById(R.id.metricsText);
     }

     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
         MenuInflater inflater = getMenuInflater();
         inflater.inflate(R.menu.content_actions, menu);
         SearchView searchView = (SearchView) menu.findItem(R.id.action_search).getActionView();
         searchView.setOnQueryTextListener(this);

         // Set file with share history to the provider and set the share intent.
         MenuItem actionItem = menu.findItem(R.id.menu_item_share_action_provider_action_bar);
         ShareActionProvider actionProvider = (ShareActionProvider) actionItem.getActionProvider();
         actionProvider.setShareHistoryFileName(ShareActionProvider.DEFAULT_SHARE_HISTORY_FILE_NAME);
         // Note that you can set/change the intent any time,
         // say when the user has selected an image.
         Intent shareIntent = new Intent(Intent.ACTION_SEND);
         shareIntent.setType("image/*");
         Uri uri = Uri.fromFile(getFileStreamPath("shared.png"));
         shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
         actionProvider.setShareIntent(shareIntent);
         return true;
     }

     @Override
     public void onAttachedToWindow() {
         updateCheckControls();
     }

     @Override
     protected void onResume() {
         super.onResume();
     }

     public void onSort(MenuItem item) {
     }

     @Override
     public boolean onQueryTextChange(String newText) {
         return true;
     }

     @Override
     public boolean onQueryTextSubmit(String query) {
         Toast.makeText(this, "Searching for: " + query + "...", Toast.LENGTH_SHORT).show();
         return true;
     }

     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case R.id.show_tabs:
                 getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
                 item.setChecked(true);
                 return true;
             case R.id.hide_tabs:
                 getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
                 item.setChecked(true);
                 return true;
         }
         return false;
     }

     @Override
     public void onTabSelected(Tab tab, FragmentTransaction ft) {
     }

     @Override
     public void onTabUnselected(Tab tab, FragmentTransaction ft) {
     }

     @Override
     public void onTabReselected(Tab tab, FragmentTransaction ft) {
     }

     public void updateCheckControls() {
         int visibility = mImage.getSystemUiVisibility();
         for (int i=0; i<mCheckControls.length; i++) {
             mCheckControls[i].setChecked((visibility&mCheckFlags[i]) != 0);
         }
     }

     public void updateSystemUi() {
         int visibility = 0;
         for (int i=0; i<mCheckControls.length; i++) {
             if (mCheckControls[i].isChecked()) {
                 visibility |= mCheckFlags[i];
             }
         }
         mImage.setSystemUiVisibility(visibility);
     }

     public void clearActionMode() {
         ((CheckBox) findViewById(R.id.windowActionMode)).setChecked(false);
     }
 }
	/*
	* Copyright (C) 2011 The Android Open Source Project
	*
	* 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.apis.view;

	import android.app.ActionBar;
	import android.app.Activity;
	import android.app.FragmentTransaction;
	import android.app.ActionBar.Tab;
	import android.content.Context;
	import android.content.Intent;
	import android.net.Uri;
	import android.os.Bundle;
	import android.util.AttributeSet;
	import android.util.DisplayMetrics;
	import android.view.ActionMode;
	import android.view.KeyEvent;
	import android.view.Menu;
	import android.view.MenuInflater;
	import android.view.MenuItem;
	import android.view.View;
	import android.view.View.OnClickListener;
	import android.view.Window;
	import android.view.WindowManager;
	import android.widget.CheckBox;
	import android.widget.CompoundButton;
	import android.widget.ImageView;
	import android.widget.SearchView;
	import android.widget.ShareActionProvider;
	import android.widget.TextView;
	import android.widget.Toast;
	import android.widget.SearchView.OnQueryTextListener;

	import com.example.android.apis.R;

	/**
	* This activity demonstrates some of the available ways to reduce the size or visual contrast of
	* the system decor, in order to better focus the user's attention or use available screen real
	* estate on the task at hand.
	*/
	public class OverscanActivity extends Activity
	implements OnQueryTextListener, ActionBar.TabListener {
	public static class IV extends ImageView implements View.OnSystemUiVisibilityChangeListener {
	private OverscanActivity mActivity;
	private ActionMode mActionMode;
	public IV(Context context) {
	super(context);
	}
	public IV(Context context, AttributeSet attrs) {
	super(context, attrs);
	}
	public void setActivity(OverscanActivity act) {
	setOnSystemUiVisibilityChangeListener(this);
	mActivity = act;
	}
	@Override
	public void onSizeChanged(int w, int h, int oldw, int oldh) {
	mActivity.refreshSizes();
	}
	@Override
	public void onSystemUiVisibilityChange(int visibility) {
	mActivity.updateCheckControls();
	mActivity.refreshSizes();
	}

	private class MyActionModeCallback implements ActionMode.Callback {
	@Override public boolean onCreateActionMode(ActionMode mode, Menu menu) {
	mode.setTitle("My Action Mode!");
	mode.setSubtitle(null);
	mode.setTitleOptionalHint(false);
	menu.add("Sort By Size").setIcon(android.R.drawable.ic_menu_sort_by_size);
	menu.add("Sort By Alpha").setIcon(android.R.drawable.ic_menu_sort_alphabetically);
	return true;
	}

	@Override public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
	return true;
	}

	@Override public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
	return true;
	}

	@Override public void onDestroyActionMode(ActionMode mode) {
	mActionMode = null;
	mActivity.clearActionMode();
	}
	}

	public void startActionMode() {
	if (mActionMode == null) {
	ActionMode.Callback cb = new MyActionModeCallback();
	mActionMode = startActionMode(cb);
	}
	}

	public void stopActionMode() {
	if (mActionMode != null) {
	mActionMode.finish();
	}
	}
	}

	private void setFullscreen(boolean on) {
	Window win = getWindow();
	WindowManager.LayoutParams winParams = win.getAttributes();
	final int bits = WindowManager.LayoutParams.FLAG_FULLSCREEN;
	if (on) {
	winParams.flags \|= bits;
	} else {
	winParams.flags &= ~bits;
	}
	win.setAttributes(winParams);
	}

	private void setOverscan(boolean on) {
	Window win = getWindow();
	WindowManager.LayoutParams winParams = win.getAttributes();
	final int bits = WindowManager.LayoutParams.FLAG_LAYOUT_IN_OVERSCAN;
	if (on) {
	winParams.flags \|= bits;
	} else {
	winParams.flags &= ~bits;
	}
	win.setAttributes(winParams);
	}

	private String getDisplaySize() {
	DisplayMetrics dm = getResources().getDisplayMetrics();
	return String.format("DisplayMetrics = (%d x %d)", dm.widthPixels, dm.heightPixels);
	}
	private String getViewSize() {
	return String.format("View = (%d,%d - %d,%d)",
	mImage.getLeft(), mImage.getTop(),
	mImage.getRight(), mImage.getBottom());
	}
	void refreshSizes() {
	mMetricsText.setText(getDisplaySize() + " " + getViewSize());
	}

	static int TOAST_LENGTH = 500;
	IV mImage;
	CheckBox[] mCheckControls = new CheckBox[6];
	int[] mCheckFlags = new int[] { View.SYSTEM_UI_FLAG_LOW_PROFILE,
	View.SYSTEM_UI_FLAG_FULLSCREEN, View.SYSTEM_UI_FLAG_HIDE_NAVIGATION,
	View.SYSTEM_UI_FLAG_LAYOUT_STABLE, View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN,
	View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
	};
	TextView mMetricsText;

	public OverscanActivity() {
	}

	@Override
	public void onCreate(Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);

	getWindow().requestFeature(Window.FEATURE_ACTION_BAR_OVERLAY);

	setContentView(R.layout.overscan);
	mImage = (IV) findViewById(R.id.image);
	mImage.setActivity(this);

	CompoundButton.OnCheckedChangeListener checkChangeListener
	= new CompoundButton.OnCheckedChangeListener() {
	@Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	updateSystemUi();
	}
	};
	mCheckControls[0] = (CheckBox) findViewById(R.id.modeLowProfile);
	mCheckControls[1] = (CheckBox) findViewById(R.id.modeFullscreen);
	mCheckControls[2] = (CheckBox) findViewById(R.id.modeHideNavigation);
	mCheckControls[3] = (CheckBox) findViewById(R.id.layoutStable);
	mCheckControls[4] = (CheckBox) findViewById(R.id.layoutFullscreen);
	mCheckControls[5] = (CheckBox) findViewById(R.id.layoutHideNavigation);
	for (int i=0; i<mCheckControls.length; i++) {
	mCheckControls[i].setOnCheckedChangeListener(checkChangeListener);
	}
	((CheckBox) findViewById(R.id.windowFullscreen)).setOnCheckedChangeListener(
	new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	setFullscreen(isChecked);
	}
	}
	);
	((CheckBox) findViewById(R.id.windowOverscan)).setOnCheckedChangeListener(
	new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	setOverscan(isChecked);
	}
	}
	);
	((CheckBox) findViewById(R.id.windowHideActionBar)).setOnCheckedChangeListener(
	new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	if (isChecked) {
	getActionBar().hide();
	} else {
	getActionBar().show();
	}
	}
	}
	);
	((CheckBox) findViewById(R.id.windowActionMode)).setOnCheckedChangeListener(
	new CompoundButton.OnCheckedChangeListener() {
	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	if (isChecked) {
	mImage.startActionMode();
	} else {
	mImage.stopActionMode();
	}
	}
	}
	);
	mMetricsText = (TextView) findViewById(R.id.metricsText);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
	MenuInflater inflater = getMenuInflater();
	inflater.inflate(R.menu.content_actions, menu);
	SearchView searchView = (SearchView) menu.findItem(R.id.action_search).getActionView();
	searchView.setOnQueryTextListener(this);

	// Set file with share history to the provider and set the share intent.
	MenuItem actionItem = menu.findItem(R.id.menu_item_share_action_provider_action_bar);
	ShareActionProvider actionProvider = (ShareActionProvider) actionItem.getActionProvider();
	actionProvider.setShareHistoryFileName(ShareActionProvider.DEFAULT_SHARE_HISTORY_FILE_NAME);
	// Note that you can set/change the intent any time,
	// say when the user has selected an image.
	Intent shareIntent = new Intent(Intent.ACTION_SEND);
	shareIntent.setType("image/*");
	Uri uri = Uri.fromFile(getFileStreamPath("shared.png"));
	shareIntent.putExtra(Intent.EXTRA_STREAM, uri);
	actionProvider.setShareIntent(shareIntent);
	return true;
	}

	@Override
	public void onAttachedToWindow() {
	updateCheckControls();
	}

	@Override
	protected void onResume() {
	super.onResume();
	}

	public void onSort(MenuItem item) {
	}

	@Override
	public boolean onQueryTextChange(String newText) {
	return true;
	}

	@Override
	public boolean onQueryTextSubmit(String query) {
	Toast.makeText(this, "Searching for: " + query + "...", Toast.LENGTH_SHORT).show();
	return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
	switch (item.getItemId()) {
	case R.id.show_tabs:
	getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
	item.setChecked(true);
	return true;
	case R.id.hide_tabs:
	getActionBar().setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
	item.setChecked(true);
	return true;
	}
	return false;
	}

	@Override
	public void onTabSelected(Tab tab, FragmentTransaction ft) {
	}

	@Override
	public void onTabUnselected(Tab tab, FragmentTransaction ft) {
	}

	@Override
	public void onTabReselected(Tab tab, FragmentTransaction ft) {
	}

	public void updateCheckControls() {
	int visibility = mImage.getSystemUiVisibility();
	for (int i=0; i<mCheckControls.length; i++) {
	mCheckControls[i].setChecked((visibility&mCheckFlags[i]) != 0);
	}
	}

	public void updateSystemUi() {
	int visibility = 0;
	for (int i=0; i<mCheckControls.length; i++) {
	if (mCheckControls[i].isChecked()) {
	visibility \|= mCheckFlags[i];
	}
	}
	mImage.setSystemUiVisibility(visibility);
	}

	public void clearActionMode() {
	((CheckBox) findViewById(R.id.windowActionMode)).setChecked(false);
	}
	}