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fling

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This commit is contained in:
Joe Onorato
2009-08-11 17:09:02 -07:00
parent c1b7bbb267
commit d769a63e6c
3 changed files with 174 additions and 41 deletions
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64
src/com/android/launcher2/AllAppsView.java
View File

@@ -44,13 +44,16 @@ import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Handler;
import android.os.Message;
import android.os.SystemClock;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.VelocityTracker;
import android.view.ViewConfiguration;
import android.graphics.PixelFormat;
@@ -58,12 +61,16 @@ public class AllAppsView extends RSSurfaceView {
private RenderScript mRS;
private RolloRS mRollo;
private ViewConfiguration mConfig;
private VelocityTracker mVelocity;
private int mLastScrollX;
private int mLastMotionX;
public AllAppsView(Context context) {
super(context);
setFocusable(true);
getHolder().setFormat(PixelFormat.TRANSLUCENT);
mConfig = ViewConfiguration.get(context);
}
public AllAppsView(Context context, AttributeSet attrs) {
@@ -98,18 +105,34 @@ public class AllAppsView extends RSSurfaceView {
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
mLastMotionX = x;
mRollo.mState.read();
mRollo.mState.scrollX = mLastScrollX = mRollo.mState.currentScrollX;
mRollo.mState.flingVelocityX = 0;
mRollo.mState.adjustedDeceleration = 0;
mRollo.mState.save();
mVelocity = VelocityTracker.obtain();
mVelocity.addMovement(ev);
break;
case MotionEvent.ACTION_MOVE:
case MotionEvent.ACTION_OUTSIDE:
deltaX = x - mLastMotionX;
mRollo.mState.scrollX += deltaX;
Log.d(Launcher.LOG_TAG, "updated scrollX=" + mRollo.mState.scrollX);
mVelocity.addMovement(ev);
mRollo.mState.currentScrollX = mLastScrollX;
mLastScrollX += deltaX;
mRollo.mState.scrollX = mLastScrollX;
mRollo.mState.save();
mLastMotionX = x;
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
mVelocity.computeCurrentVelocity(1000 /* px/sec */,
mConfig.getScaledMaximumFlingVelocity());
mRollo.mState.flingTimeMs = (int)SystemClock.uptimeMillis(); // TODO: use long
mRollo.mState.flingVelocityX = (int)mVelocity.getXVelocity();
mRollo.mState.save();
mLastMotionX = -10000;
mVelocity.recycle();
mVelocity = null;
break;
}
return true;
@@ -131,11 +154,6 @@ public class AllAppsView extends RSSurfaceView {
public class RolloRS {
// Allocations ======
static final int ALLOC_PARAMS = 0;
static final int ALLOC_STATE = 1;
static final int ALLOC_SCRATCH = 2;
static final int ALLOC_ICON_IDS = 3;
static final int ALLOC_LABEL_IDS = 4;
private int mWidth;
private int mHeight;
@@ -168,6 +186,14 @@ public class AllAppsView extends RSSurfaceView {
Params mParams;
State mState;
class Defines {
public static final int ALLOC_PARAMS = 0;
public static final int ALLOC_STATE = 1;
public static final int ALLOC_SCRATCH = 2;
public static final int ALLOC_ICON_IDS = 3;
public static final int ALLOC_LABEL_IDS = 4;
}
class Params extends IntAllocation {
Params(RenderScript rs) {
super(rs);
@@ -184,6 +210,10 @@ public class AllAppsView extends RSSurfaceView {
}
@AllocationIndex(0) public int iconCount;
@AllocationIndex(1) public int scrollX;
@AllocationIndex(2) public int flingTimeMs;
@AllocationIndex(3) public int flingVelocityX;
@AllocationIndex(4) public int adjustedDeceleration;
@AllocationIndex(5) public int currentScrollX;
}
public RolloRS() {
@@ -261,15 +291,14 @@ public class AllAppsView extends RSSurfaceView {
mRS.contextBindProgramVertex(mPV);
mAllocScratchBuf = new int[32];
mAllocScratch = Allocation.createSized(mRS,
Element.USER_I32, mAllocScratchBuf.length);
mAllocScratch = Allocation.createSized(mRS, Element.USER_I32, mAllocScratchBuf.length);
mAllocScratch.data(mAllocScratchBuf);
Log.e("rs", "Done loading named");
}
private void initData() {
final int count = 29;
final int count = 100;
mParams = new Params(mRS);
mState = new State(mRS);
@@ -324,14 +353,15 @@ public class AllAppsView extends RSSurfaceView {
ScriptC.Builder sb = new ScriptC.Builder(mRS);
sb.setScript(mRes, R.raw.rollo);
sb.setRoot(true);
sb.addDefines(Defines.class);
mScript = sb.create();
mScript.setClearColor(0.0f, 0.0f, 0.0f, 0.0f);
mScript.bindAllocation(mParams.getAllocation(), ALLOC_PARAMS);
mScript.bindAllocation(mState.getAllocation(), ALLOC_STATE);
mScript.bindAllocation(mAllocIconID, ALLOC_ICON_IDS);
mScript.bindAllocation(mAllocScratch, ALLOC_SCRATCH);
mScript.bindAllocation(mAllocLabelID, ALLOC_LABEL_IDS);
mScript.bindAllocation(mParams.getAllocation(), Defines.ALLOC_PARAMS);
mScript.bindAllocation(mState.getAllocation(), Defines.ALLOC_STATE);
mScript.bindAllocation(mAllocIconID, Defines.ALLOC_ICON_IDS);
mScript.bindAllocation(mAllocScratch, Defines.ALLOC_SCRATCH);
mScript.bindAllocation(mAllocLabelID, Defines.ALLOC_LABEL_IDS);
mRS.contextBindRootScript(mScript);
}