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Merge change Ic31c11ad into eclair

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* changes:
  Fix 2209086: restore drawable states when drawables change.
This commit is contained in:
Android (Google) Code Review
2009-11-12 13:13:58 -08:00
parent 58c603eff0 4df2c5433b
commit 2477fd6949
1 changed files with 31 additions and 20 deletions
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51
core/java/com/android/internal/widget/SlidingTab.java
View File

@@ -37,8 +37,11 @@ import com.android.internal.R;
/**
* A special widget containing two Sliders and a threshold for each. Moving either slider beyond
* the threshold will cause the registered OnTriggerListener.onTrigger() to be called with
* {@link OnTriggerListener#LEFT_HANDLE} or {@link OnTriggerListener#RIGHT_HANDLE} to be called.
* the threshold will cause the registered OnTriggerListener.onTrigger() to be called with
* whichHandle being {@link OnTriggerListener#LEFT_HANDLE} or {@link OnTriggerListener#RIGHT_HANDLE}
* Equivalently, selecting a tab will result in a call to
* {@link OnTriggerListener#onGrabbedStateChange(View, int)} with one of these two states. Releasing
* the tab will result in whichHandle being {@link OnTriggerListener#NO_HANDLE}.
*
*/
public class SlidingTab extends ViewGroup {
@@ -50,7 +53,7 @@ public class SlidingTab extends ViewGroup {
private static final int MSG_ANIMATE = 100;
// TODO: Make these configurable
private static final float TARGET_ZONE = 2.0f / 3.0f;
private static final float THRESHOLD = 2.0f / 3.0f;
private static final long VIBRATE_SHORT = 30;
private static final long VIBRATE_LONG = 40;
@@ -71,35 +74,35 @@ public class SlidingTab extends ViewGroup {
private Slider mRightSlider;
private Slider mCurrentSlider;
private boolean mTracking;
private float mTargetZone;
private float mThreshold;
private Slider mOtherSlider;
private boolean mAnimating;
/**
* Interface definition for a callback to be invoked when a tab is triggered
* by moving it beyond a target zone.
* by moving it beyond a threshold.
*/
public interface OnTriggerListener {
/**
* The interface was triggered because the user let go of the handle without reaching the
* target zone.
* threshold.
*/
public static final int NO_HANDLE = 0;
/**
* The interface was triggered because the user grabbed the left handle and moved it past
* the target zone.
* the threshold.
*/
public static final int LEFT_HANDLE = 1;
/**
* The interface was triggered because the user grabbed the right handle and moved it past
* the target zone.
* the threshold.
*/
public static final int RIGHT_HANDLE = 2;
/**
* Called when the user moves a handle beyond the target zone.
* Called when the user moves a handle beyond the threshold.
*
* @param v The view that was triggered.
* @param whichHandle Which "dial handle" the user grabbed,
@@ -146,6 +149,7 @@ public class SlidingTab extends ViewGroup {
private final ImageView tab;
private final TextView text;
private final ImageView target;
private int currentState = STATE_NORMAL;
/**
* Constructor
@@ -223,6 +227,7 @@ public class SlidingTab extends ViewGroup {
} else {
text.setTextAppearance(text.getContext(), R.style.TextAppearance_SlidingTabNormal);
}
currentState = state;
}
void showTarget() {
@@ -260,8 +265,8 @@ public class SlidingTab extends ViewGroup {
final int parentWidth = r - l;
final int parentHeight = b - t;
final int leftTarget = (int) (TARGET_ZONE * parentWidth) - targetWidth + handleWidth / 2;
final int rightTarget = (int) ((1.0f - TARGET_ZONE) * parentWidth) - handleWidth / 2;
final int leftTarget = (int) (THRESHOLD * parentWidth) - targetWidth + handleWidth / 2;
final int rightTarget = (int) ((1.0f - THRESHOLD) * parentWidth) - handleWidth / 2;
final int left = (parentWidth - handleWidth) / 2;
final int right = left + handleWidth;
@@ -286,8 +291,8 @@ public class SlidingTab extends ViewGroup {
// vertical
final int targetLeft = (parentWidth - targetWidth) / 2;
final int targetRight = (parentWidth + targetWidth) / 2;
final int top = (int) (TARGET_ZONE * parentHeight) + handleHeight / 2 - targetHeight;
final int bottom = (int) ((1.0f - TARGET_ZONE) * parentHeight) - handleHeight / 2;
final int top = (int) (THRESHOLD * parentHeight) + handleHeight / 2 - targetHeight;
final int bottom = (int) ((1.0f - THRESHOLD) * parentHeight) - handleHeight / 2;
if (alignment == ALIGN_TOP) {
tab.layout(left, 0, right, handleHeight);
text.layout(left, 0 - parentHeight, right, 0);
@@ -300,6 +305,10 @@ public class SlidingTab extends ViewGroup {
}
}
public void updateDrawableStates() {
setState(currentState);
}
public int getTabWidth() {
return tab.getDrawable().getIntrinsicWidth();
}
@@ -400,12 +409,12 @@ public class SlidingTab extends ViewGroup {
if (leftHit) {
mCurrentSlider = mLeftSlider;
mOtherSlider = mRightSlider;
mTargetZone = isHorizontal() ? TARGET_ZONE : 1.0f - TARGET_ZONE;
mThreshold = isHorizontal() ? THRESHOLD : 1.0f - THRESHOLD;
setGrabbedState(OnTriggerListener.LEFT_HANDLE);
} else {
mCurrentSlider = mRightSlider;
mOtherSlider = mLeftSlider;
mTargetZone = isHorizontal() ? 1.0f - TARGET_ZONE : TARGET_ZONE;
mThreshold = isHorizontal() ? 1.0f - THRESHOLD : THRESHOLD;
setGrabbedState(OnTriggerListener.RIGHT_HANDLE);
}
mCurrentSlider.setState(Slider.STATE_PRESSED);
@@ -429,16 +438,16 @@ public class SlidingTab extends ViewGroup {
case MotionEvent.ACTION_MOVE:
moveHandle(x, y);
float position = isHorizontal() ? x : y;
float target = mTargetZone * (isHorizontal() ? getWidth() : getHeight());
boolean targetZoneReached;
float target = mThreshold * (isHorizontal() ? getWidth() : getHeight());
boolean thresholdReached;
if (isHorizontal()) {
targetZoneReached = mCurrentSlider == mLeftSlider ?
thresholdReached = mCurrentSlider == mLeftSlider ?
position > target : position < target;
} else {
targetZoneReached = mCurrentSlider == mLeftSlider ?
thresholdReached = mCurrentSlider == mLeftSlider ?
position < target : position > target;
}
if (!mTriggered && targetZoneReached) {
if (!mTriggered && thresholdReached) {
mTriggered = true;
mTracking = false;
mCurrentSlider.setState(Slider.STATE_ACTIVE);
@@ -527,6 +536,7 @@ public class SlidingTab extends ViewGroup {
mLeftSlider.setTarget(targetId);
mLeftSlider.setBarBackgroundResource(barId);
mLeftSlider.setTabBackgroundResource(tabId);
mLeftSlider.updateDrawableStates();
}
/**
@@ -554,6 +564,7 @@ public class SlidingTab extends ViewGroup {
mRightSlider.setTarget(targetId);
mRightSlider.setBarBackgroundResource(barId);
mRightSlider.setTabBackgroundResource(tabId);
mRightSlider.updateDrawableStates();
}
/**