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Start at adding trackball support to 3D all apps

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Known problems: you can outrun the selection by moving the
trackball quickly. Focus can get confused.
This commit is contained in:
Mike Cleron
2009-10-20 14:06:00 -07:00
parent f70fbe70b5
commit 7d5d746863
2 changed files with 122 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

107
src/com/android/launcher2/AllAppsView.java
View File

@@ -45,6 +45,7 @@ import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.os.Message;
@@ -87,7 +88,12 @@ public class AllAppsView extends RSSurfaceView
private RenderScript mRS;
private RolloRS mRollo;
private ArrayList<ApplicationInfo> mAllAppsList;
/**
* True when we are using arrow keys or trackball to drive navigation
*/
private boolean mArrowNavigation = false;
private int mPageCount;
private boolean mStartedScrolling;
private VelocityTracker mVelocity;
@@ -175,12 +181,93 @@ public class AllAppsView extends RSSurfaceView
long endTime = SystemClock.uptimeMillis();
Log.d(TAG, "surfaceChanged took " + (endTime-startTime) + "ms");
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
// this method doesn't work when 'extends View' include 'extends ScrollView'.
return super.onKeyDown(keyCode, event);
protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) {
super.onFocusChanged(gainFocus, direction, previouslyFocusedRect);
if (gainFocus) {
if (!mArrowNavigation && mRollo.mState.iconCount > 0) {
// Select the first icon when we gain keyboard focus
mArrowNavigation = true;
mRollo.selectIcon(Math.round(mRollo.mMessageProc.mPosX) * Defines.COLUMNS_PER_PAGE);
mRollo.mState.save();
}
} else {
if (mArrowNavigation) {
// Clear selection when we lose focus
mRollo.clearSelectedIcon();
mRollo.mState.save();
mArrowNavigation = false;
}
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER || keyCode == KeyEvent.KEYCODE_ENTER) {
if (mArrowNavigation) {
int whichApp = mRollo.mState.selectedIconIndex;
if (whichApp >= 0) {
ApplicationInfo app = mAllAppsList.get(whichApp);
mLauncher.startActivitySafely(app.intent);
}
}
}
if (mArrowNavigation && mRollo.mState.iconCount > 0) {
mArrowNavigation = true;
int currentSelection = mRollo.mState.selectedIconIndex;
int currentTopRow = (int) mRollo.mMessageProc.mPosX;
// The column of the current selection, in the range 0..COLUMNS_PER_PAGE-1
int currentPageCol = currentSelection % Defines.COLUMNS_PER_PAGE;
// The row of the current selection, in the range 0..ROWS_PER_PAGE-1
int currentPageRow = (currentSelection - (currentTopRow * Defines.COLUMNS_PER_PAGE))
/ Defines.ROWS_PER_PAGE;
int newSelection = currentSelection;
switch (keyCode) {
case KeyEvent.KEYCODE_DPAD_UP:
if (currentPageRow > 0) {
newSelection = currentSelection - Defines.COLUMNS_PER_PAGE;
} else if (currentTopRow > 0) {
mRollo.moveTo(currentTopRow - 1);
newSelection = currentSelection - Defines.COLUMNS_PER_PAGE;
}
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
if (currentSelection < mRollo.mState.iconCount - Defines.COLUMNS_PER_PAGE) {
if (currentPageRow < Defines.ROWS_PER_PAGE - 1) {
newSelection = currentSelection + Defines.COLUMNS_PER_PAGE;
} else {
mRollo.moveTo(currentTopRow + 1);
newSelection = currentSelection + Defines.COLUMNS_PER_PAGE;
}
}
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
if (currentPageCol > 0) {
newSelection = currentSelection - 1;
}
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
if ((currentPageCol < Defines.COLUMNS_PER_PAGE - 1) &&
(currentSelection < mRollo.mState.iconCount - 1)) {
newSelection = currentSelection + 1;
}
break;
}
if (newSelection != currentSelection) {
mRollo.selectIcon(newSelection);
mRollo.mState.save();
}
}
return true;
}
private int mRSMode = 0;
@@ -188,6 +275,8 @@ public class AllAppsView extends RSSurfaceView
@Override
public boolean onTouchEvent(MotionEvent ev)
{
mArrowNavigation = false;
if (!isVisible()) {
return true;
}
@@ -208,13 +297,14 @@ public class AllAppsView extends RSSurfaceView
mTouchTracking = TRACKING_HOME;
mRollo.setHomeSelected(true);
mRollo.mState.save();
mCurrentIconIndex = -1;
} else {
mTouchTracking = TRACKING_FLING;
mMotionDownRawX = (int)ev.getRawX();
mMotionDownRawY = (int)ev.getRawY();
mRollo.mState.newPositionX = ev.getRawY() / getWidth();
mRollo.mState.newPositionX = ev.getRawY() / getHeight();
mRollo.mState.newTouchDown = 1;
if (!mRollo.checkClickOK()) {
@@ -260,7 +350,7 @@ public class AllAppsView extends RSSurfaceView
cancelLongPress();
mCurrentIconIndex = -1;
}
mRollo.mState.newPositionX = ev.getRawY() / getWidth();
mRollo.mState.newPositionX = ev.getRawY() / getHeight();
mRollo.mState.newTouchDown = 1;
mRollo.move();
@@ -281,9 +371,10 @@ public class AllAppsView extends RSSurfaceView
mRollo.setHomeSelected(false);
mRollo.mState.save();
}
mCurrentIconIndex = -1;
} else if (mTouchTracking == TRACKING_FLING) {
mRollo.mState.newTouchDown = 0;
mRollo.mState.newPositionX = ev.getRawY() / getWidth();
mRollo.mState.newPositionX = ev.getRawY() / getHeight();
mVelocity.computeCurrentVelocity(1000 /* px/sec */, mMaxFlingVelocity);
mRollo.mState.flingVelocity = mVelocity.getYVelocity() / getHeight();