自定义菜单

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="134dip"     android:id="@+id/launcher_menu"    android:gravity="bottom"    android:clickable="true"android:focusable="true"    >    <LinearLayout android:layout_width="fill_parent"       android:layout_height="67dip"       android:orientation="horizontal"       android:gravity="center" >    <LinearLayout android:id="@+id/layout_item_1"       android:layout_width="fill_parent"       android:layout_height="67dip"       android:layout_weight="1"      android:orientation="vertical"       android:clickable="true"      android:focusable="true"      android:background="@drawable/launcher_menu_selector"      android:gravity="center" >    <TextView android:id="@+id/menu_item_text_1"       android:layout_width="wrap_content"       android:layout_height="fill_parent"      android:textColor="#000000"      android:includeFontPadding="false"       android:gravity="center" />    </LinearLayout>    <LinearLayout android:id="@+id/layout_item_2"       android:layout_width="fill_parent"       android:layout_height="67dip"       android:layout_weight="1"      android:orientation="vertical"       android:clickable="true"      android:focusable="true"      android:background="@drawable/launcher_menu_selector"      android:gravity="center" >    <TextView android:id="@+id/menu_item_text_2"       android:layout_width="wrap_content"       android:layout_height="fill_parent"      android:textColor="#000000"          android:includeFontPadding="false"       android:gravity="center" />    </LinearLayout>    <LinearLayout android:id="@+id/layout_item_3"       android:layout_width="fill_parent"       android:layout_height="67dip"       android:layout_weight="1"      android:orientation="vertical"       android:clickable="true"      android:focusable="true"      android:background="@drawable/launcher_menu_selector"      android:gravity="center" >    <TextView android:id="@+id/menu_item_text_3"       android:layout_width="wrap_content"       android:layout_height="fill_parent"      android:textColor="#000000"          android:includeFontPadding="false"       android:gravity="center" />    </LinearLayout>        </LinearLayout><LinearLayout android:layout_width="fill_parent"       android:layout_height="67dip"       android:orientation="horizontal"       android:gravity="center" >    <LinearLayout android:id="@+id/layout_item_4"       android:layout_width="fill_parent"       android:layout_height="67dip"       android:layout_weight="1"      android:orientation="vertical"       android:clickable="true"      android:focusable="true"      android:background="@drawable/launcher_menu_selector"      android:gravity="center" >    <TextView android:id="@+id/menu_item_text_4"       android:layout_width="wrap_content"       android:layout_height="fill_parent"      android:textColor="#000000"          android:includeFontPadding="false"       android:gravity="center" />    </LinearLayout>    <LinearLayout android:id="@+id/layout_item_5"       android:layout_width="fill_parent"       android:layout_height="67dip"       android:layout_weight="1"      android:orientation="vertical"       android:clickable="true"      android:focusable="true"      android:background="@drawable/launcher_menu_selector"      android:gravity="center" >    <TextView android:id="@+id/menu_item_text_5"       android:layout_width="wrap_content"       android:layout_height="fill_parent"      android:textColor="#000000"          android:includeFontPadding="false"       android:gravity="center" />    </LinearLayout>    <LinearLayout android:id="@+id/layout_item_6"       android:layout_width="fill_parent"       android:layout_height="67dip"       android:layout_weight="1"      android:orientation="vertical"       android:clickable="true"      android:focusable="true"      android:background="@drawable/launcher_menu_selector"      android:gravity="center" >    <TextView android:id="@+id/menu_item_text_6"       android:layout_width="wrap_content"       android:layout_height="fill_parent"      android:textColor="#000000"          android:includeFontPadding="false"       android:gravity="center" />    </LinearLayout>        </LinearLayout></LinearLayout>

@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if(keyCode == KeyEvent.KEYCODE_MENU){showLauncherMenu(keyCode, event);return true;}...}

private PopupWindow menuWindow;private void showLauncherMenu(int keyCode, KeyEvent event) {if(keyCode == KeyEvent.KEYCODE_MENU){int[] menuItemLayoutResId = {R.id.layout_item_1, R.id.layout_item_2, R.id.layout_item_3,R.id.layout_item_4, R.id.layout_item_5, R.id.layout_item_6};int[] menuItemTextViewResId = {R.id.menu_item_text_1, R.id.menu_item_text_2, R.id.menu_item_text_3,R.id.menu_item_text_4, R.id.menu_item_text_5, R.id.menu_item_text_6};if(null == menuWindow){final View layout = View.inflate(this, R.layout.launcher_menu, null);menuWindow = new PopupWindow(layout,LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);for(int i=0; i<6; i++){...//处理菜单项点击事件，菜单图标、文字等//菜单显示后，焦点移动到了PopupWindow上的菜单项，需要在菜单项捕获Menu键以达到隐藏菜单的效果LinearLayout menuItemLayout = (LinearLayout)layout.findViewById(menuItemLayoutResId[i]);menuItemLayout.setOnKeyListener(new OnKeyListener(){@Overridepublic boolean onKey(View v, int keyCode, KeyEvent event) {switch (keyCode) {                case KeyEvent.KEYCODE_MENU:                if(event.getAction() == KeyEvent.ACTION_DOWN){                    if (menuWindow != null && menuWindow.isShowing()) {                    menuWindow.dismiss();                    }                }                    break;                }return false;}});}layout.setFocusable(true);layout.setFocusableInTouchMode(true);layout.setOnKeyListener(new OnKeyListener(){@Overridepublic boolean onKey(View v, int keyCode, KeyEvent event) {switch (keyCode) {                case KeyEvent.KEYCODE_MENU:                if(event.getAction() == KeyEvent.ACTION_DOWN){                    if (menuWindow != null && menuWindow.isShowing()) {                    menuWindow.dismiss();                    }                }                case KeyEvent.KEYCODE_DPAD_DOWN:                case KeyEvent.KEYCODE_DPAD_UP:                case KeyEvent.KEYCODE_DPAD_LEFT:                case KeyEvent.KEYCODE_DPAD_RIGHT:                layout.findViewById(R.id.layout_item_1).requestFocus();                    break;                }return false;}});}if(!menuWindow.isShowing()){//处理菜单项"添加"是否可用mMenuAddInfo = mWorkspace.findAllVacantCellsFromModel();boolean isAddEnabled = mMenuAddInfo != null && mMenuAddInfo.valid;LinearLayout layout_item_add = (LinearLayout)menuWindow.getContentView().findViewById(R.id.layout_item_1);layout_item_add.requestFocus();layout_item_add.setClickable(isAddEnabled);layout_item_add.setBackgroundResource(isAddEnabled ? R.drawable.launcher_menu_selector : R.drawable.launcher_menu_disabled);Drawable icon = ThemeParser.loadMenuIcon(0);icon.setBounds(0, 0, icon.getIntrinsicWidth(), icon.getIntrinsicHeight());icon.setAlpha(isAddEnabled ? 0xFF :(int)(0.2 * 0xFF));TextView text_item_add = (TextView)menuWindow.getContentView().findViewById(R.id.menu_item_text_1);text_item_add.setTextColor(isAddEnabled ? Color.parseColor("#000000") : R.color.gray);text_item_add.setCompoundDrawables(null, icon, null, null);boolean isOrientationLandscape = ScreenUtil.isOrientationLandscape(this);if(isOrientationLandscape){menuWindow.setHeight(ScreenUtil.dip2px(this, 67));}else{menuWindow.setHeight(ScreenUtil.dip2px(this, 134));}((LinearLayout)menuWindow.getContentView().findViewById(R.id.launcher_menu)).setBackgroundDrawable(ThemeParser.loadThemeMenuBackground(isOrientationLandscape));menuWindow.setBackgroundDrawable(getResources().getDrawable(R.drawable.transparent));menuWindow.setFocusable(true);menuWindow.setOutsideTouchable(true);//设置菜单显示隐藏的动画menuWindow.setAnimationStyle(R.style.PopupAnimation);menuWindow.showAtLocation(findViewById(R.id.drag_layer), Gravity.BOTTOM|Gravity.CENTER_HORIZONTAL, 0, 0);menuWindow.update();}else{menuWindow.dismiss();}}}

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