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Merge "Fix toasts." into honeycomb

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This commit is contained in:
Romain Guy
2011-01-19 16:51:44 -08:00
committed by Android (Google) Code Review
parent 1368436e42 cf3dd6bc69
commit eefc82483a
1 changed files with 78 additions and 81 deletions
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159
core/java/android/widget/Toast.java
View File

@@ -33,8 +33,6 @@ import android.view.WindowManagerImpl;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityManager;
import java.lang.ref.WeakReference;
/**
* A toast is a view containing a quick little message for the user. The toast class
* helps you create and show those.
@@ -72,11 +70,6 @@ public class Toast {
final Context mContext;
final TN mTN;
int mDuration;
int mGravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
int mX, mY;
float mHorizontalMargin;
float mVerticalMargin;
View mView;
View mNextView;
/**
@@ -88,8 +81,8 @@ public class Toast {
*/
public Toast(Context context) {
mContext = context;
mTN = new TN(this);
mY = context.getResources().getDimensionPixelSize(
mTN = new TN();
mTN.mY = context.getResources().getDimensionPixelSize(
com.android.internal.R.dimen.toast_y_offset);
}
@@ -103,9 +96,11 @@ public class Toast {
INotificationManager service = getService();
String pkg = mContext.getPackageName();
TN tn = mTN;
tn.mNextView = mNextView;
try {
service.enqueueToast(pkg, mTN, mDuration);
service.enqueueToast(pkg, tn, mDuration);
} catch (RemoteException e) {
// Empty
}
@@ -165,22 +160,22 @@ public class Toast {
* notification
*/
public void setMargin(float horizontalMargin, float verticalMargin) {
mHorizontalMargin = horizontalMargin;
mVerticalMargin = verticalMargin;
mTN.mHorizontalMargin = horizontalMargin;
mTN.mVerticalMargin = verticalMargin;
}
/**
* Return the horizontal margin.
*/
public float getHorizontalMargin() {
return mHorizontalMargin;
return mTN.mHorizontalMargin;
}
/**
* Return the vertical margin.
*/
public float getVerticalMargin() {
return mVerticalMargin;
return mTN.mVerticalMargin;
}
/**
@@ -189,9 +184,9 @@ public class Toast {
* @see #getGravity
*/
public void setGravity(int gravity, int xOffset, int yOffset) {
mGravity = gravity;
mX = xOffset;
mY = yOffset;
mTN.mGravity = gravity;
mTN.mX = xOffset;
mTN.mY = yOffset;
}
/**
@@ -200,21 +195,21 @@ public class Toast {
* @see #getGravity
*/
public int getGravity() {
return mGravity;
return mTN.mGravity;
}
/**
* Return the X offset in pixels to apply to the gravity's location.
*/
public int getXOffset() {
return mX;
return mTN.mX;
}
/**
* Return the Y offset in pixels to apply to the gravity's location.
*/
public int getYOffset() {
return mY;
return mTN.mY;
}
/**
@@ -281,21 +276,6 @@ public class Toast {
tv.setText(s);
}
private void trySendAccessibilityEvent() {
AccessibilityManager accessibilityManager = AccessibilityManager.getInstance(mContext);
if (!accessibilityManager.isEnabled()) {
return;
}
// treat toasts as notifications since they are used to
// announce a transient piece of information to the user
AccessibilityEvent event = AccessibilityEvent.obtain(
AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
event.setClassName(getClass().getName());
event.setPackageName(mContext.getPackageName());
mView.dispatchPopulateAccessibilityEvent(event);
accessibilityManager.sendAccessibilityEvent(event);
}
// =======================================================================================
// All the gunk below is the interaction with the Notification Service, which handles
// the proper ordering of these system-wide.
@@ -312,8 +292,6 @@ public class Toast {
}
private static class TN extends ITransientNotification.Stub {
final Handler mHandler = new Handler();
final Runnable mShow = new Runnable() {
public void run() {
handleShow();
@@ -327,12 +305,20 @@ public class Toast {
};
private final WindowManager.LayoutParams mParams = new WindowManager.LayoutParams();
private final WeakReference<Toast> mToast;
final Handler mHandler = new Handler();
int mGravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
int mX, mY;
float mHorizontalMargin;
float mVerticalMargin;
View mView;
View mNextView;
WindowManagerImpl mWM;
TN(Toast toast) {
mToast = new WeakReference<Toast>(toast);
TN() {
// XXX This should be changed to use a Dialog, with a Theme.Toast
// defined that sets up the layout params appropriately.
final WindowManager.LayoutParams params = mParams;
@@ -364,53 +350,64 @@ public class Toast {
}
public void handleShow() {
final Toast toast = mToast.get();
if (toast != null) {
if (localLOGV) Log.v(TAG, "HANDLE SHOW: " + this + " mView=" + toast.mView
+ " mNextView=" + toast.mNextView);
if (toast.mView != toast.mNextView) {
// remove the old view if necessary
handleHide();
toast.mView = toast.mNextView;
mWM = WindowManagerImpl.getDefault();
final int gravity = toast.mGravity;
mParams.gravity = gravity;
if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL) {
mParams.horizontalWeight = 1.0f;
}
if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.FILL_VERTICAL) {
mParams.verticalWeight = 1.0f;
}
mParams.x = toast.mX;
mParams.y = toast.mY;
mParams.verticalMargin = toast.mVerticalMargin;
mParams.horizontalMargin = toast.mHorizontalMargin;
if (toast.mView.getParent() != null) {
if (localLOGV) Log.v(TAG, "REMOVE! " + toast.mView + " in " + this);
mWM.removeView(toast.mView);
}
if (localLOGV) Log.v(TAG, "ADD! " + toast.mView + " in " + this);
mWM.addView(toast.mView, mParams);
toast.trySendAccessibilityEvent();
if (localLOGV) Log.v(TAG, "HANDLE SHOW: " + this + " mView=" + mView
+ " mNextView=" + mNextView);
if (mView != mNextView) {
// remove the old view if necessary
handleHide();
mView = mNextView;
mWM = WindowManagerImpl.getDefault();
final int gravity = mGravity;
mParams.gravity = gravity;
if ((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) == Gravity.FILL_HORIZONTAL) {
mParams.horizontalWeight = 1.0f;
}
if ((gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.FILL_VERTICAL) {
mParams.verticalWeight = 1.0f;
}
mParams.x = mX;
mParams.y = mY;
mParams.verticalMargin = mVerticalMargin;
mParams.horizontalMargin = mHorizontalMargin;
if (mView.getParent() != null) {
if (localLOGV) Log.v(TAG, "REMOVE! " + mView + " in " + this);
mWM.removeView(mView);
}
if (localLOGV) Log.v(TAG, "ADD! " + mView + " in " + this);
mWM.addView(mView, mParams);
trySendAccessibilityEvent();
}
}
private void trySendAccessibilityEvent() {
AccessibilityManager accessibilityManager =
AccessibilityManager.getInstance(mView.getContext());
if (!accessibilityManager.isEnabled()) {
return;
}
// treat toasts as notifications since they are used to
// announce a transient piece of information to the user
AccessibilityEvent event = AccessibilityEvent.obtain(
AccessibilityEvent.TYPE_NOTIFICATION_STATE_CHANGED);
event.setClassName(getClass().getName());
event.setPackageName(mView.getContext().getPackageName());
mView.dispatchPopulateAccessibilityEvent(event);
accessibilityManager.sendAccessibilityEvent(event);
}
public void handleHide() {
final Toast toast = mToast.get();
if (toast != null) {
if (localLOGV) Log.v(TAG, "HANDLE HIDE: " + this + " mView=" + toast.mView);
if (toast.mView != null) {
// note: checking parent() just to make sure the view has
// been added... i have seen cases where we get here when
// the view isn't yet added, so let's try not to crash.
if (toast.mView.getParent() != null) {
if (localLOGV) Log.v(TAG, "REMOVE! " + toast.mView + " in " + this);
mWM.removeView(toast.mView);
}
toast.mView = null;
if (localLOGV) Log.v(TAG, "HANDLE HIDE: " + this + " mView=" + mView);
if (mView != null) {
// note: checking parent() just to make sure the view has
// been added... i have seen cases where we get here when
// the view isn't yet added, so let's try not to crash.
if (mView.getParent() != null) {
if (localLOGV) Log.v(TAG, "REMOVE! " + mView + " in " + this);
mWM.removeView(mView);
}
mView = null;
mNextView = null;
}
}
}