Android Open Source - introToDroid4ed Events Activity From Project Back to project page introToDroid4ed .
License The source code is released under:
GNU General Public License
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Java Source Code package com.introtoandroid.viewsamples;
/ / w w w . j a v a 2 s . c o m
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewTreeObserver;
import android.widget.Button;
import android.widget.TextView;
public class EventsActivity extends Activity {
private String mSaveText = null;
private GestureDetector mGestures = null;
@Override
public boolean onTouchEvent(MotionEvent event) {
if (mGestures != null) {
return mGestures.onTouchEvent(event);
} else {
return super.onTouchEvent(event);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.events);
/* events to demonstrate: touch mode changes
events on entire screen long press gesture
focus changes on views key events -- hmm...
not working the way I thought, maybe skip
*/
final TextView events = (TextView)findViewById(R.id.last_event_text);
View all = findViewById(R.id.events_screen);
ViewTreeObserver vto = all.getViewTreeObserver();
vto.addOnTouchModeChangeListener(new ViewTreeObserver.OnTouchModeChangeListener() {
public void onTouchModeChanged(boolean isInTouchMode) {
events.setText("Touch mode: " + isInTouchMode);
}
});
vto.addOnGlobalFocusChangeListener(new ViewTreeObserver.OnGlobalFocusChangeListener() {
public void onGlobalFocusChanged(View oldFocus, View newFocus) {
if (oldFocus != null && newFocus != null) {
events.setText("Focus \nfrom: " + oldFocus.toString() + " \nto: " + newFocus.toString());
}
}
});
Button long_press = (Button)findViewById(R.id.long_press);
long_press.setOnLongClickListener(new View.OnLongClickListener() {
public boolean onLongClick(View v) {
// we know what View already, use it anyway
events.setText("Long click: " + v.toString());
return true;
}
});
mGestures = new GestureDetector(this , new GestureDetector.SimpleOnGestureListener() {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
events.setText("Fling! \nx= " + velocityX + "px/s\ny=" +velocityY + "px/s" );
return super.onFling(e1, e2, velocityX, velocityY);
}
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
events.setText("Scroll! \nX = " + distanceX + "\nY = " +distanceY);
return super.onScroll(e1, e2, distanceX, distanceY);
}
});
TextView focus = (TextView)findViewById(R.id.text_focus_change);
focus.setOnFocusChangeListener(new View.OnFocusChangeListener() {
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus) {
if (mSaveText != null) {
((TextView)v).setText(mSaveText);
}
} else {
mSaveText = ((TextView)v).getText().toString();
((TextView)v).setText("" );
}
}
});
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyMultiple(int keyCode, int repeatCount, KeyEvent event) {
Log.d(ViewSampleActivity.debugTag, "Multi code = " +keyCode);
return super.onKeyMultiple(keyCode, repeatCount, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
// TODO Auto-generated method stub
return super.onKeyUp(keyCode, event);
}
}
Java Source Code List com.introtoandroid.advancedlayouts.AdaptersActivity.java com.introtoandroid.advancedlayouts.AdvancedLayoutsActivity.java com.introtoandroid.advancedlayouts.BasicLayoutActivity.java com.introtoandroid.advancedlayouts.ContactAdapterActivity.java com.introtoandroid.advancedlayouts.DialogActivity.java com.introtoandroid.advancedlayouts.GridAdapterSampleActivity.java com.introtoandroid.advancedlayouts.GridLayoutActivity.java com.introtoandroid.advancedlayouts.GridListMenuActivity.java com.introtoandroid.advancedlayouts.ListAdapterSampleActivity.java com.introtoandroid.advancedlayouts.MenuActivity.java com.introtoandroid.advancedlayouts.MyListActivity.java com.introtoandroid.advancedlayouts.StyleSamplesActivity.java com.introtoandroid.filesoc.FileStreamOfConsciousnessActivity.java com.introtoandroid.filesoc.ViewLogActivity.java com.introtoandroid.myfirstandroidapp.MyFirstAndroidAppActivity.java com.introtoandroid.navigation.FirstChildActivity.java com.introtoandroid.navigation.ParentActivity.java com.introtoandroid.navigation.SecondChildActivity.java com.introtoandroid.navigation.ThirdChildActivity.java com.introtoandroid.parisview.ParisViewActivity.java com.introtoandroid.passwordmatcher.PasswordMatcherActivity.java com.introtoandroid.resourceroundup.ResourceRoundupActivity.java com.introtoandroid.samelayout.MenuActivity.java com.introtoandroid.samelayout.ProgrammaticLayoutActivity.java com.introtoandroid.samelayout.ResourceLayoutActivity.java com.introtoandroid.samelayout.SameLayoutActivity.java com.introtoandroid.simpleactionbar.SimpleActionBarActivity.java com.introtoandroid.simplealtresources.SimpleAltResourcesActivity.java com.introtoandroid.simplecontacts.SimpleContactsActivity.java com.introtoandroid.simplecontentprovider.MenuActivity.java com.introtoandroid.simplecontentprovider.SimpleBookmarks.java com.introtoandroid.simplecontentprovider.SimpleCallLog.java com.introtoandroid.simplecontentprovider.SimpleContentProviderMenuActivity.java com.introtoandroid.simplecontentprovider.SimpleMediaStore.java com.introtoandroid.simplefiles.SimpleFilesActivity.java com.introtoandroid.simplefragdialogs.SimpleFragDialogActivity.java com.introtoandroid.simplefragments.FieldNoteListFragment.java com.introtoandroid.simplefragments.FieldNoteViewActivity.java com.introtoandroid.simplefragments.FieldNoteWebViewFragment.java com.introtoandroid.simplefragments.SimpleFragmentsActivity.java com.introtoandroid.simplelayout.FrameLayoutActivity.java com.introtoandroid.simplelayout.GridLayoutActivity.java com.introtoandroid.simplelayout.LinearLayoutActivity.java com.introtoandroid.simplelayout.MenuActivity.java com.introtoandroid.simplelayout.MultipleLayoutActivity.java com.introtoandroid.simplelayout.RelativeLayoutActivity.java com.introtoandroid.simplelayout.SimpleLayoutActivity.java com.introtoandroid.simplelayout.TableLayoutActivity.java com.introtoandroid.simplemultimedia.AudioActivity.java com.introtoandroid.simplemultimedia.MenuActivity.java com.introtoandroid.simplemultimedia.SimpleMultimediaActivity.java com.introtoandroid.simplemultimedia.StillImageActivity.java com.introtoandroid.simplemultimedia.VideoPlayActivity.java com.introtoandroid.simplepreferences.MoreSimplePreferencesActivity.java com.introtoandroid.simplepreferences.SimplePreferencesActivity.java com.introtoandroid.simplepreferences.SuperSimplePreferencesActivity.java com.introtoandroid.simpleresourceview.SimpleResourceViewActivity.java com.introtoandroid.simplescrolling.BothScrollActivity.java com.introtoandroid.simplescrolling.HorizontalScrollActivity.java com.introtoandroid.simplescrolling.MenuActivity.java com.introtoandroid.simplescrolling.NoScrollActivity.java com.introtoandroid.simplescrolling.SimpleScrollingActivity.java com.introtoandroid.simplescrolling.VerticalScrollActivity.java com.introtoandroid.simpleuserprefs.SimpleUserPrefsActivity.java com.introtoandroid.supportfragdialog.MyAlertDialogFragment.java com.introtoandroid.supportfragdialog.SupportFragDialogActivity.java com.introtoandroid.userprefsheaders.UserPrefsActivity.java com.introtoandroid.viewsamples.ButtonsActivity.java com.introtoandroid.viewsamples.ContainersActivity.java com.introtoandroid.viewsamples.EventsActivity.java com.introtoandroid.viewsamples.FormsActivity.java com.introtoandroid.viewsamples.IndicatorsActivity.java com.introtoandroid.viewsamples.MenuActivity.java com.introtoandroid.viewsamples.PickersActivity.java com.introtoandroid.viewsamples.TextDisplayActivity.java com.introtoandroid.viewsamples.TextInputActivity.java com.introtoandroid.viewsamples.ViewSampleActivity.java