i set OnLongClickListner, but it doesn't fire. Can anybody help me?
i just follow
[url]http://www.anddev.org/appwidgethost_tutorial-t10329.html[/url], and
change some, as it is posted in 2010.
Some part of code:
//declare under class
private AppWidgetHostView widgets[] = new AppWidgetHostView[16];
widgets[widgCount] = attachWidget(mAppWidgetHost.createView(this,
appWidgetId, appWidgetInfo), width, height);
parent.addView(widgets[widgCount]);
widgets[widgCount].setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
Toast.makeText(MainActivity.this, "hello hello ",
Toast.LENGTH_SHORT).show();
return true;
}
});
My code:
package com.example.test5;
import java.util.ArrayList;
import android.os.Bundle;
import android.app.Activity;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetHostView;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnLongClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class MainActivity extends Activity {
private Button b1;
private AppWidgetManager mAppWidgetManager;
private AppWidgetHost mAppWidgetHost;
static final int APPWIDGET_HOST_ID = 2037;
private static final int REQUEST_CREATE_APPWIDGET = 5;
private static final int REQUEST_PICK_APPWIDGET = 9;
private AppWidgetHostView widgets[] = new AppWidgetHostView[16];
private int widgCount = 0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b1=(Button)findViewById(R.id.button1);
b1.setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
doWidgetPick();
return false;
}
});
mAppWidgetManager = AppWidgetManager.getInstance(this);
mAppWidgetHost = new AppWidgetHost(this, APPWIDGET_HOST_ID);
mAppWidgetHost.startListening();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
menu.add(0, 1, 0, "Add Widget");
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case 1:
doWidgetPick();
return true;
}
return false;
}
protected void doWidgetPick() {
int appWidgetId = this.mAppWidgetHost.allocateAppWidgetId();
Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
/* custom extra that has to be there or else NPE will happen due to
android bug */
//this is pulled from the Launcher source, I just changed a few things as
it's just a dummy entry at this point
ArrayList<AppWidgetProviderInfo> customInfo =
new ArrayList<AppWidgetProviderInfo>();
AppWidgetProviderInfo info = new AppWidgetProviderInfo();
info.provider = new ComponentName(getPackageName(), "XXX.YYY");
info.label = "i love android";
info.icon = R.drawable.ic_launcher;
customInfo.add(info);
pickIntent.putParcelableArrayListExtra(
AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
ArrayList<Bundle> customExtras = new ArrayList<Bundle>();
Bundle b = new Bundle();
b.putString("custom_widget", "search_widget");
customExtras.add(b);
pickIntent.putParcelableArrayListExtra(
AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);
/* that's a lot of lines that are there for no function at all */
// start the pick activity
startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
//because we've defined ourselves as a singleTask activity, it will
allow this intent to be part of the task
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent
data) {
Log.v("result",requestCode + ", " + resultCode + ", " + data);
//when the user completes the pick process, both these cases come back,
according to log.
//looks like this is happening because Pick does a check to see if a
config needs to be launched first
//if not it just sends the create intent
if (resultCode == RESULT_OK) {
switch (requestCode) {
case REQUEST_PICK_APPWIDGET:
addAppWidget(data);
break;
case REQUEST_CREATE_APPWIDGET:
completeAddAppWidget(data);
break;
}
}
else if ((requestCode == REQUEST_PICK_APPWIDGET ||
requestCode == REQUEST_CREATE_APPWIDGET) && resultCode ==
RESULT_CANCELED &&
data != null) {
// Clean up the appWidgetId if we canceled
int appWidgetId =
data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, -1);
if (appWidgetId != -1) {
mAppWidgetHost.deleteAppWidgetId(appWidgetId);
}
}
}
private void completeAddAppWidget(Intent data){
//actually creates the view for the widget
Bundle extras = data.getExtras();
int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,
-1);
AppWidgetProviderInfo appWidgetInfo =
mAppWidgetManager.getAppWidgetInfo(appWidgetId);
/* Launcher would calculate the grid spans needed to fit this widget
* It would also do a check operation to abort if the cell user picked
wasn't acceptable
* given the size of the widget they chose
*/
//What we'll do is log the info about the widget for help in letting
user reposition it
int width = appWidgetInfo.minWidth;
int height = appWidgetInfo.minHeight;
/*
next we need to make a record of where we are adding this widget
what the launcher is doing is spawning a helper object where it saves
details about the widget
it saves the number of cells wide and tall the widget is
it adds the spawned object to the array list for widgetinfos
the array list is a member of LauncherInfo helper object
the model seems to retain the references to everything that's been placed
on the Launcher
*/
//we can get a reference to our main view here, and then add a relative
layout to it.
//I can probably directly reference the relative layout I want and then
add widgets filling in from the top
//just need to figure out how to determine if the widget being selected
is too long to fit on existing row
//to decide whether to place it on right of last widget or on the bottom
RelativeLayout parent= (RelativeLayout)
findViewById(R.id.relativelayout);
//Log.v("getting parent ref","the ID of the parent is " +
parent.getId());
//AppWidgetHostView newWidget = mAppWidgetHost.createView(this,
appWidgetId, appWidgetInfo);
//we need to store this widget in an array. the views can be recreated
but we need to have a persistent ref
//FIXME currently we aren't persistent, need to learn how to make
activity save persistent state
widgets[widgCount] = attachWidget(mAppWidgetHost.createView(this,
appWidgetId, appWidgetInfo), width, height);
parent.addView(widgets[widgCount]);
widgets[widgCount].setOnLongClickListener(new OnLongClickListener() {
public boolean onLongClick(View v) {
Toast.makeText(MainActivity.this, "hello hello ",
Toast.LENGTH_SHORT).show();
return true;
}
});
Log.v("widget was added","the ID of the widget view is " +
widgets[widgCount].getId());
widgCount++;
//launcher is doing something to pass this view to their the
workspace or the celllayout
//so every single widget that gets created is one instance of the
AppWidgetHostView.
//the viewgroup we would have to maintain holds all the
appwidgethostviews/
}
private AppWidgetHostView attachWidget(AppWidgetHostView widget, int w, int
h){
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams
(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
if (widgCount == 0) params.addRule(RelativeLayout.ALIGN_PARENT_TOP);
//first widget goes at the top of the relative view widget area
else params.addRule(RelativeLayout.RIGHT_OF,
widgets[widgCount-1].getId());
widget.setLayoutParams(params);
widget.setId(100+widgCount);
return widget;
}
void addAppWidget(Intent data) {
// TODO: catch bad widget exception when sent
int appWidgetId = data.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
-1);
String customWidget = data.getStringExtra("custom_widget");
if ("search_widget".equals(customWidget)) {//user picked the extra
// We don't need this any more, since this isn't a real app widget.
mAppWidgetHost.deleteAppWidgetId(appWidgetId);
//scold user for disobedience
} else {
AppWidgetProviderInfo appWidget =
mAppWidgetManager.getAppWidgetInfo(appWidgetId);
if (appWidget.configure != null) {
// Launch over to configure widget, if needed
Intent intent = new
Intent(AppWidgetManager.ACTION_APPWIDGET_CONFIGURE);
intent.setComponent(appWidget.configure);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
appWidgetId);
startActivityForResult(intent, REQUEST_CREATE_APPWIDGET);
} else {
// Otherwise just add it
onActivityResult(REQUEST_CREATE_APPWIDGET, Activity.RESULT_OK,
data);
}
}
}
private void onAppWidgetReset() {
mAppWidgetHost.startListening();
}
@Override
public void onDestroy() {
//mDestroyed = true;
super.onDestroy();
try {
mAppWidgetHost.stopListening();
} catch (NullPointerException ex) {
Log.w("lockscreen destroy", "problem while stopping AppWidgetHost
during Lockscreen destruction", ex);
}
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android";
xmlns:tools="http://schemas.android.com/tools";
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/relativelayout">
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Button" />
</RelativeLayout>
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
