Add previews on long press on the indicators.
Change-Id: I6349d55345255caacc1381e83459544f8b8e085c
diff --git a/src/com/android/launcher2/Launcher.java b/src/com/android/launcher2/Launcher.java
index 738793b..e7a4a3c 100644
--- a/src/com/android/launcher2/Launcher.java
+++ b/src/com/android/launcher2/Launcher.java
@@ -39,6 +39,7 @@
import android.content.res.Resources;
import android.database.ContentObserver;
import android.graphics.Bitmap;
+import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.os.Handler;
@@ -60,12 +61,14 @@
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
+import android.view.MotionEvent;
import android.view.View.OnLongClickListener;
import android.view.inputmethod.InputMethodManager;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import android.widget.ImageView;
+import android.widget.PopupWindow;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
@@ -80,7 +83,7 @@
* Default launcher application.
*/
public final class Launcher extends Activity
- implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks {
+ implements View.OnClickListener, OnLongClickListener, LauncherModel.Callbacks, View.OnTouchListener, View.OnKeyListener {
static final String LOG_TAG = "Launcher";
static final String TAG = LOG_TAG;
static final boolean LOGD = false;
@@ -193,6 +196,8 @@
private static HashMap<Long, FolderInfo> mFolders = new HashMap<Long, FolderInfo>();
public static long lastStartTime;
+ private ImageView mPreviousView;
+ private ImageView mNextView;
@Override
protected void onCreate(Bundle savedInstanceState) {
@@ -436,6 +441,8 @@
mExitingBecauseOfLaunch = false;
closeAllApps(false);
}
+ dismissPreview(mPreviousView);
+ dismissPreview(mNextView);
}
@Override
@@ -550,11 +557,21 @@
mHandleView = (HandleView) findViewById(R.id.all_apps_button);
mHandleView.setLauncher(this);
mHandleView.setOnClickListener(this);
-
- Drawable previous = ((ImageView) dragLayer.findViewById(R.id.previous_screen)).getDrawable();
- Drawable next = ((ImageView) dragLayer.findViewById(R.id.next_screen)).getDrawable();
+
+ mPreviousView = (ImageView) dragLayer.findViewById(R.id.previous_screen);
+ mNextView = (ImageView) dragLayer.findViewById(R.id.next_screen);
+
+ Drawable previous = mPreviousView.getDrawable();
+ Drawable next = mNextView.getDrawable();
mWorkspace.setIndicators(previous, next);
+ mPreviousView.setOnLongClickListener(this);
+ mPreviousView.setOnTouchListener(this);
+ mPreviousView.setOnKeyListener(this);
+ mNextView.setOnLongClickListener(this);
+ mNextView.setOnTouchListener(this);
+ mNextView.setOnKeyListener(this);
+
workspace.setOnLongClickListener(this);
workspace.setDragController(dragController);
workspace.setLauncher(this);
@@ -921,6 +938,9 @@
AppInfoCache.unbindDrawables();
getContentResolver().unregisterContentObserver(mWidgetObserver);
+
+ dismissPreview(mPreviousView);
+ dismissPreview(mNextView);
}
@Override
@@ -1450,6 +1470,15 @@
}
public boolean onLongClick(View v) {
+ switch (v.getId()) {
+ case R.id.previous_screen:
+ showPreviousPreview(v);
+ return true;
+ case R.id.next_screen:
+ showNextPreview(v);
+ return true;
+ }
+
if (isWorkspaceLocked()) {
return false;
}
@@ -1482,6 +1511,85 @@
return true;
}
+ public boolean onKey(View v, int keyCode, KeyEvent event) {
+ if (event.getAction() == KeyEvent.ACTION_UP) {
+ dismissPreview(v);
+ }
+ return false;
+ }
+
+ public boolean onTouch(View v, MotionEvent event) {
+ if (event.getAction() == MotionEvent.ACTION_UP) {
+ dismissPreview(v);
+ }
+ return false;
+ }
+
+ private void dismissPreview(View v) {
+ PopupWindow window = (PopupWindow) v.getTag();
+ if (window != null) {
+ window.dismiss();
+ ((ImageView) v.getTag(R.id.workspace)).setImageBitmap(null);
+ ((Bitmap) v.getTag(R.id.icon)).recycle();
+
+ v.setTag(R.id.workspace, null);
+ v.setTag(R.id.icon, null);
+ }
+ v.setTag(null);
+ }
+
+ private void showPreviousPreview(View anchor) {
+ int current = mWorkspace.getCurrentScreen();
+ if (current <= 0) return;
+
+ View previous = mWorkspace.getChildAt(current - 1);
+ showPreview(anchor, previous);
+ }
+
+ private void showNextPreview(View anchor) {
+ int current = mWorkspace.getCurrentScreen();
+ if (current >= mWorkspace.getChildCount() - 1) return;
+
+ View next = mWorkspace.getChildAt(current + 1);
+ showPreview(anchor, next);
+ }
+
+ private void showPreview(View anchor, View source) {
+ boolean cacheEnabled = source.isDrawingCacheEnabled();
+ source.setDrawingCacheEnabled(true);
+ source.buildDrawingCache();
+
+ Bitmap cache = source.getDrawingCache();
+ if (cache == null) return;
+
+ Bitmap bitmap = Bitmap.createScaledBitmap(cache,
+ (int) (cache.getWidth() / 2.5f), (int) (cache.getHeight() / 2.5f), true);
+
+ ImageView preview = new ImageView(this);
+ preview.setImageBitmap(bitmap);
+ Drawable d = getResources().getDrawable(R.drawable.preview_popup);
+ preview.setBackgroundDrawable(d);
+
+ Rect r = new Rect();
+ d.getPadding(r);
+ int extraW = r.left + r.right;
+ int extraH = r.top + r.bottom;
+
+ PopupWindow p = new PopupWindow(preview, bitmap.getWidth() + extraW,
+ bitmap.getHeight() + extraH);
+ p.setWindowLayoutMode(ViewGroup.LayoutParams.WRAP_CONTENT,
+ ViewGroup.LayoutParams.WRAP_CONTENT);
+ p.setAnimationStyle(R.style.AnimationPreview);
+ p.showAsDropDown(anchor, 0, 0);
+
+ source.destroyDrawingCache();
+ if (!cacheEnabled) source.setDrawingCacheEnabled(cacheEnabled);
+
+ anchor.setTag(p);
+ anchor.setTag(R.id.workspace, preview);
+ anchor.setTag(R.id.icon, bitmap);
+ }
+
View getDrawerHandle() {
return mHandleView;
}
@@ -1490,12 +1598,6 @@
return mWorkspace;
}
- /* TODO
- GridView getApplicationsGrid() {
- return mAllAppsGrid;
- }
- */
-
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {