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Code Issues Releases Activity

AndroidGCS: Make the fragment object updated callbacks register in the main

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activity method and use the main activity handler to consolidate things into
one place.
This commit is contained in:
James Cotton 2012-08-08 08:55:58 -05:00
parent 6bed9fcb3c
commit babe4d9f0e
2 changed files with 76 additions and 79 deletions
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33
androidgcs/src/org/openpilot/androidgcs/ObjectManagerActivity.java
View File

@ -93,9 +93,10 @@ public abstract class ObjectManagerActivity extends Activity {
* objectUpdated with the right object type
*/
final Handler uavobjHandler = new Handler();
private class UpdatedObserver implements Observer {
private class ActivityUpdatedObserver implements Observer {
UAVObject obj;
UpdatedObserver(UAVObject obj) { this.obj = obj; };
ActivityUpdatedObserver(UAVObject obj) { this.obj = obj; };
@Override
public void update(Observable observable, Object data) {
uavobjHandler.post(new Runnable() {
@Override
@ -103,6 +104,22 @@ public abstract class ObjectManagerActivity extends Activity {
});
}
};
private class FragmentUpdatedObserver implements Observer {
UAVObject obj;
ObjectManagerFragment frag;
FragmentUpdatedObserver(UAVObject obj, ObjectManagerFragment frag) {
this.obj = obj;
this.frag = frag;
};
@Override
public void update(Observable observable, Object data) {
uavobjHandler.post(new Runnable() {
@Override
public void run() { frag.objectUpdated(obj); }
});
}
};
/**
* Register an activity to receive updates from this object
@ -110,7 +127,10 @@ public abstract class ObjectManagerActivity extends Activity {
* the objectUpdated() method will be called in the original UI thread
*/
protected void registerObjectUpdates(UAVObject object) {
object.addUpdatedObserver(new UpdatedObserver(object));
object.addUpdatedObserver(new ActivityUpdatedObserver(object));
}
protected void registerObjectUpdates(UAVObject object, ObjectManagerFragment frag) {
object.addUpdatedObserver(new FragmentUpdatedObserver(object, frag));
}
protected void registerObjectUpdates(List<List<UAVObject>> objects) {
ListIterator<List<UAVObject>> li = objects.listIterator();
@ -133,6 +153,7 @@ public abstract class ObjectManagerActivity extends Activity {
}
final Observer telemetryObserver = new Observer() {
@Override
public void update(Observable observable, Object data) {
uavobjHandler.post(new Runnable() {
@Override
@ -248,7 +269,7 @@ public abstract class ObjectManagerActivity extends Activity {
}
}
};
private ConnectionObserver connectionListeners = new ConnectionObserver();
private final ConnectionObserver connectionListeners = new ConnectionObserver();
public class OnConnectionListener implements Observer {
// Local reference of the fragment to notify, store in constructor
@ -275,7 +296,8 @@ public abstract class ObjectManagerActivity extends Activity {
/** Defines callbacks for service binding, passed to bindService() */
private ServiceConnection mConnection = new ServiceConnection() {
private final ServiceConnection mConnection = new ServiceConnection() {
@Override
public void onServiceConnected(ComponentName arg0, IBinder service) {
// We've bound to LocalService, cast the IBinder and attempt to open a connection
if (DEBUG) Log.d(TAG,"Service bound");
@ -293,6 +315,7 @@ public abstract class ObjectManagerActivity extends Activity {
}
}
@Override
public void onServiceDisconnected(ComponentName name) {
mBound = false;
binder = null;

58
androidgcs/src/org/openpilot/androidgcs/ObjectManagerFragment.java
View File

@ -1,17 +1,11 @@
package org.openpilot.androidgcs;
import java.util.List;
import java.util.ListIterator;
import java.util.Observable;
import java.util.Observer;
import org.openpilot.uavtalk.UAVObject;
import org.openpilot.uavtalk.UAVObjectManager;
import android.app.Activity;
import android.app.Fragment;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
public class ObjectManagerFragment extends Fragment {
@ -40,25 +34,29 @@ public class ObjectManagerFragment extends Fragment {
super.onAttach(activity);
if (DEBUG) Log.d(TAG,"onAttach");
((ObjectManagerActivity)activity).addOnConnectionListenerFragment(this);
ObjectManagerActivity castActivity = null;
try {
castActivity = (ObjectManagerActivity)activity;
} catch (ClassCastException e) {
throw new android.app.Fragment.InstantiationException(
"Attaching a ObjectManagerFragment to an activity failed because the parent activity is not a ObjectManagerActivity",
e);
}
castActivity.addOnConnectionListenerFragment(this);
}
// The below methods should all be called by the parent activity at the appropriate times
void onOPConnected(UAVObjectManager objMngr) {
protected void onOPConnected(UAVObjectManager objMngr) {
this.objMngr = objMngr;
if (DEBUG) Log.d(TAG,"onOPConnected");
}
void onOPDisconnected() {
protected void onOPDisconnected() {
objMngr = null;
if (DEBUG) Log.d(TAG,"onOPDisconnected");
}
public void onBind() {
}
/**
* Called whenever any objects subscribed to via registerObjects
*/
@ -67,36 +65,12 @@ public class ObjectManagerFragment extends Fragment {
}
/**
* A message handler and a custom Observer to use it which calls
* objectUpdated with the right object type
*/
final Handler uavobjHandler = new Handler();
private class UpdatedObserver implements Observer {
UAVObject obj;
UpdatedObserver(UAVObject obj) { this.obj = obj; };
public void update(Observable observable, Object data) {
uavobjHandler.post(new Runnable() {
@Override
public void run() { objectUpdated(obj); }
});
}
};
/**
* Register an activity to receive updates from this object
*
* the objectUpdated() method will be called in the original UI thread
* Register on the activities object monitor handler so that updates
* occur within that UI thread. No need to maintain a handler for
* each fragment.
*/
protected void registerObjectUpdates(UAVObject object) {
object.addUpdatedObserver(new UpdatedObserver(object));
}
protected void registerObjectUpdates(List<List<UAVObject>> objects) {
ListIterator<List<UAVObject>> li = objects.listIterator();
while(li.hasNext()) {
ListIterator<UAVObject> li2 = li.next().listIterator();
while(li2.hasNext())
registerObjectUpdates(li2.next());
}
((ObjectManagerActivity) getActivity()).registerObjectUpdates(object, this);
}
}