Android2.2 Luncher2扩展(仿Ipad DockBar、HTC预览图、批量添加快捷方式、启用3D效果等)
1、给Launcher添加DockBar
2、修改Launcher长安AllApps的预览图
（1、2两点请参考何明桂何兄的博客，地址分别为：http://blog.csdn.net/hmg25/article/details/6289438 http://blog.csdn.net/hmg25/article/details/6289725）DockBar的实现，何兄只提供了竖屏，我在其博客的评论中看到不少人说是要实现横屏，下面我将我的实现帖出来。主要是修改layout-land/launcher.xml文件，以下是这个文件的全部代码：
- <span style="font-size:18px;"><com.android.launcherex.DragLayer
- xmlns:android="http://schemas.android.com/apk/res/android"
- xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"
- android:id="@+id/drag_layer"
- android:layout_width="match_parent"
- android:layout_height="match_parent">
- <include layout="@layout/all_apps" />
- <!-- The workspace contains 3 screens of cells -->
- <com.android.launcherex.Workspace
- android:id="@+id/workspace"
- android:layout_width="match_parent"
- android:layout_height="match_parent"
- android:scrollbars="horizontal"
- android:fadeScrollbars="true"
- launcher:defaultScreen="2">
- <include android:id="@+id/cell1" layout="@layout/workspace_screen" />
- <include android:id="@+id/cell2" layout="@layout/workspace_screen" />
- <include android:id="@+id/cell3" layout="@layout/workspace_screen" />
- <include android:id="@+id/cell4" layout="@layout/workspace_screen" />
- <include android:id="@+id/cell5" layout="@layout/workspace_screen" />
- </com.android.launcherex.Workspace>
- <RelativeLayout
- android:id="@+id/dock_layout"
- android:layout_gravity="bottom|left"
- android:layout_width="match_parent"
- android:layout_height="95dip"
- >
- <com.android.launcherex.ClippedImageView
- android:id="@+id/previous_screen"
- android:layout_width="93dip"
- android:layout_height="@dimen/button_bar_height"
- android:layout_alignParentTop="true"
- android:layout_alignParentLeft="true"
- android:layout_marginLeft="6dip"
- android:scaleType="center"
- android:src="@drawable/home_arrows_left"
- android:onClick="previousScreen"
- launcher:ignoreZone="56dip"
- android:focusable="true"
- android:clickable="true" />
- <com.android.launcherex.ClippedImageView
- android:id="@+id/next_screen"
- android:layout_width="93dip"
- android:layout_height="@dimen/button_bar_height"
- android:layout_alignParentTop="true"
- android:layout_alignParentRight="true"
- android:layout_marginRight="6dip"
- android:scaleType="center"
- android:src="@drawable/home_arrows_right"
- android:onClick="nextScreen"
- launcher:ignoreZone="-56dip"
- android:focusable="true"
- android:clickable="true" />
- <com.android.launcherex.DeleteZone
- android:id="@+id/delete_zone"
- android:layout_width="@dimen/delete_zone_size"
- android:layout_height="@dimen/delete_zone_size"
- android:paddingLeft="@dimen/delete_zone_padding"
- android:layout_marginBottom="@dimen/dock_bar_height"
- android:layout_alignParentBottom="true"
- android:layout_centerHorizontal="true"
- android:scaleType="center"
- android:src="@drawable/delete_zone_selector"
- android:visibility="invisible"
- launcher:direction="vertical"
- />
- <RelativeLayout
- android:id="@+id/all_apps_button_cluster"
- android:layout_height="fill_parent"
- android:layout_width="@dimen/button_bar_height_portrait"
- android:layout_gravity="bottom|center_vertical"
- android:layout_marginBottom="@dimen/half_status_bar_height"
- >
- <!-- <com.android.launcherex.HandleView
- style="@style/HotseatButton"
- android:id="@+id/all_apps_button"
- android:layout_centerVertical="true"
- android:layout_alignParentRight="true"
- android:src="@drawable/all_apps_button"
- launcher:direction="vertical"
- />-->
- <!-- android:layout_below="@id/all_apps_button" -->
- <!-- android:layout_above="@id/all_apps_button" -->
- <ImageView
- android:id="@+id/hotseat_left"
- style="@style/HotseatButton.Left"
- android:src="@drawable/hotseat_phone"
- android:visibility="gone"
- android:onClick="launchHotSeat"
- />
- <ImageView
- android:id="@+id/hotseat_right"
- style="@style/HotseatButton.Right"
- android:visibility="gone"
- android:src="@drawable/hotseat_browser"
- android:onClick="launchHotSeat"
- />
- </RelativeLayout>
- <com.android.launcherex.DockBar
- android:id="@+id/dockbar"
- android:layout_width="fill_parent"
- android:layout_height="@dimen/button_bar_height"
- android:background="@drawable/dock_bg"
- android:layout_alignParentBottom="true"
- launcher:direction="horizontal">
- <HorizontalScrollView
- android:id="@+id/dock_scroll_view"
- android:scrollbars="none"
- android:fadingEdge="none"
- android:saveEnabled="false"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent">
- <LinearLayout
- android:orientation="horizontal"
- android:id="@+id/dock_item_holder"
- android:saveEnabled="false"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent">
- <com.android.launcherex.HandleView
- android:id="@+id/all_apps_button"
- android:layout_centerVertical="true"
- android:src="@drawable/all_apps_button"
- launcher:direction="horizontal"
- android:layout_width="fill_parent"
- android:layout_height="fill_parent"
- android:focusable="true"
- android:clickable="true" />
- </LinearLayout>
- </HorizontalScrollView>
- </com.android.launcherex.DockBar>
- </RelativeLayout>
- </com.android.launcherex.DragLayer>
- </span>
3、启用3D效果
3D效果启动很简单，只需要将all_apps.xml文件下的
<include layout="@layout/all_apps_2d" />改为：
<include layout="@layout/all_apps_3d" />
即可。当然你可能还需要对图标做一些调整。我主要是调整了一下几个参数：
- <span style="font-size:18px;"> public static final int ICON_WIDTH_PX = 64;
- public static final int ICON_TEXTURE_WIDTH_PX = 74;
- public static final int SELECTION_TEXTURE_WIDTH_PX = 74 + 20;
- public static final int ICON_HEIGHT_PX = 64;
- public static final int ICON_TEXTURE_HEIGHT_PX = 74;
- public static final int SELECTION_TEXTURE_HEIGHT_PX = 74 + 20;</span>
4、替换应用程序图标
主要是在IconCache中做了以下修改。修改的只是Launcher上显示的图标，长按Home键显示最近开启的应用时，图标还是原先默认的图标，这些就自己去改吧。- <span style="font-size:18px;">private CacheEntry cacheLocked(ComponentName componentName, ResolveInfo info) {
- CacheEntry entry = mCache.get(componentName);
- if (entry == null) {
- entry = new CacheEntry();
- mCache.put(componentName, entry);
- entry.title = info.loadLabel(mPackageManager).toString();
- if (entry.title == null) {
- entry.title = info.activityInfo.name;
- }
- // entry.icon = Utilities.createIconBitmap(info.activityInfo.loadIcon(mPackageManager), mContext);
- entry.icon = suBIcon(info);
- }
- return entry;
- }
- /**
- * Replace the default Launcher icon
- * @param info
- * @return
- */
- private Bitmap suBIcon(ResolveInfo info){
- Drawable drawable = null;
- String pname = info.activityInfo.packageName;
- if(pname.equals(Constant.PACKAGE_VIDEOPLAYER)){
- drawable = mResources.getDrawable(R.drawable.lu_videoplayer);
- }else if(pname.equals(Constant.PACKAGENAME_BROWSER)){
- drawable = mResources.getDrawable(R.drawable.lu_browser);
- }else if(pname.equals(Constant.PACKAGE_CALCULATOR)){
- drawable = mResources.getDrawable(R.drawable.lu_calculator2);
- }else if(pname.equals(Constant.PACKAGE_CALENDAR)){
- drawable = mResources.getDrawable(R.drawable.lu_calendar);
- }else if(pname.equals(Constant.PACKAGE_CAMERA)){
- drawable = mResources.getDrawable(R.drawable.lu_camera);
- }else if(pname.equals(Constant.PACKAGE_CLOCK)){
- drawable = mResources.getDrawable(R.drawable.lu_alarmclock);
- }else if(pname.equals(Constant.PACKAGE_EMAIL)){
- drawable = mResources.getDrawable(R.drawable.lu_email);
- }else if(pname.equals(Constant.PACKAGE_GALLERY)){
- drawable = mResources.getDrawable(R.drawable.lu_gallery);
- }else if(pname.equals(Constant.PACKAGE_MUSIC)){
- drawable = mResources.getDrawable(R.drawable.lu_music);
- }else if(pname.equals(Constant.PACKAGE_SETTINGS)){
- drawable = mResources.getDrawable(R.drawable.lu_settings);
- }
- if(drawable!=null){
- return Utilities.createIconBitmap(drawable, mContext);
- }else{
- return Utilities.createIconBitmap(info.activityInfo.loadIcon(mPackageManager), mContext);
- }
- }</span>
5、批量添加快捷方式
操作：长按桌面 -- Add to Home Screen点击Applications即显示所有安装应用程序列表。可任意选择多个应用程序的快捷方式添加到Launcher上。1、Activity类：AddShortcutsActivity 主要用于显示安装应用程序信息和添加操作界面
2、列表适配： AddShortcutsAdapter 继承BaseAdapter。
3、快捷方式实体类：ShortcutsEntity
4、add_shortcuts_adapter.xml
5、add_shortcuts.xml
直接上代码：
- <span style="font-size:18px;">package com.android.launcherex;
- import java.util.ArrayList;
- import java.util.List;
- import android.app.Activity;
- import android.content.Intent;
- import android.content.pm.ActivityInfo;
- import android.content.pm.PackageManager;
- import android.content.pm.ResolveInfo;
- import android.os.Bundle;
- import android.os.Parcelable;
- import android.util.Log;
- import android.view.View;
- import android.view.View.OnClickListener;
- import android.widget.AdapterView;
- import android.widget.AdapterView.OnItemClickListener;
- import android.widget.Button;
- import android.widget.ListView;
- import com.android.launcher.R;
- public class AddShortcutsActivity extends Activity implements OnClickListener,OnItemClickListener{
- private AddShortcutsAdapter mShortcutsAdapter;
- private final static String TAG = "AddShortcutsActivity";
- private ListView lstShortcuts;
- private Button btnAddShortcuts;
- private Button btnCancelShortcuts;
- private ArrayList<ShortcutsEntity> mShortcutsEntity = new ArrayList<ShortcutsEntity>();
- @Override
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.add_shortcuts);
- setupViews();
- }
- private void setupViews(){
- lstShortcuts = (ListView) findViewById(R.id.shortcuts_list);
- // lstShortcuts.setItemsCanFocus(false);
- lstShortcuts.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
- btnAddShortcuts = (Button) findViewById(R.id.shortcuts_add);
- btnCancelShortcuts=(Button) findViewById(R.id.shortcuts_cancel);
- btnAddShortcuts.setOnClickListener(this);
- btnCancelShortcuts.setOnClickListener(this);
- lstShortcuts.setOnItemClickListener(this);
- mShortcutsEntity = getAllShortcuts();
- mShortcutsAdapter = new AddShortcutsAdapter(mShortcutsEntity,this);
- lstShortcuts.setAdapter(mShortcutsAdapter);
- }
- public void onClick(View arg0) {
- switch(arg0.getId()){
- case R.id.shortcuts_add:
- ArrayList<Intent> intents = getSelectedShortcuts();
- Intent intent = getIntent();
- // Read base intent from extras, otherwise assume default
- Parcelable parcel = intent.getParcelableExtra(Intent.EXTRA_INTENT);
- if (parcel instanceof Intent) {
- intent = (Intent) parcel;
- } else {
- intent = new Intent(Intent.ACTION_MAIN, null);
- intent.addCategory(Intent.CATEGORY_DEFAULT);
- }
- Bundle bundle = new Bundle();
- bundle.putSerializable("intents", intents);
- intent.putExtras(bundle);
- setResult(Activity.RESULT_OK,intent);
- finish();
- break;
- case R.id.shortcuts_cancel:
- finish();
- break;
- }
- }
- /**
- * Get all the applications
- * @return
- */
- private ArrayList<ShortcutsEntity> getAllShortcuts(){
- ArrayList<ShortcutsEntity> entitys = new ArrayList<ShortcutsEntity>();
- Intent intent = new Intent(Intent.ACTION_MAIN);
- intent.addCategory(Intent.CATEGORY_LAUNCHER);
- PackageManager mPackageManager = this.getPackageManager();
- List<ResolveInfo> mAllApps = mPackageManager.queryIntentActivities(intent, 0);
- int size = mAllApps.size();
- for(int i=0;i<size;i++){
- ShortcutsEntity entity = new ShortcutsEntity();
- ResolveInfo resolveInfo = mAllApps.get(i);
- entity.Title = resolveInfo.loadLabel(mPackageManager);
- entity.Icon = resolveInfo.loadIcon(mPackageManager);
- entity.Info = resolveInfo;
- entitys.add(entity);
- Log.i(TAG, "entity.Title="+resolveInfo.loadLabel(mPackageManager));
- }
- //TODO: sort
- return entitys;
- }
- public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
- mShortcutsAdapter.setSelectItem(arg2);
- mShortcutsAdapter.notifyDataSetChanged();
- }
- /**
- * Been selected shortcuts
- * @return
- */
- private ArrayList<Intent> getSelectedShortcuts(){
- ArrayList<Intent> selecteds = new ArrayList<Intent>();
- ArrayList<Boolean> isCheck = AddShortcutsAdapter.isChecked;
- int checkSize = isCheck.size();
- for(int i=0;i<checkSize;i++){
- if(isCheck.get(i)){
- ShortcutsEntity entity = mShortcutsEntity.get(i);
- ActivityInfo activityInfo = entity.Info.activityInfo;
- Intent intent = new Intent();
- intent.setClassName(activityInfo.applicationInfo.packageName,activityInfo.name);
- selecteds.add(intent);
- Log.i(TAG, "selected item.name="+mShortcutsEntity.get(i).Title);
- }
- }
- return selecteds;
- }
- }
- </span>
- <span style="font-size:18px;">package com.android.launcherex;
- import java.util.ArrayList;
- import com.android.launcher.R;
- import android.content.Context;
- import android.view.LayoutInflater;
- import android.view.View;
- import android.view.ViewGroup;
- import android.widget.BaseAdapter;
- import android.widget.CheckBox;
- import android.widget.ImageView;
- import android.widget.TextView;
- public class AddShortcutsAdapter extends BaseAdapter {
- private ArrayList<ShortcutsEntity> mShortcuts;
- private final LayoutInflater mInflater;
- private Context mContext;
- public static ArrayList<Boolean> isChecked;
- public AddShortcutsAdapter(ArrayList<ShortcutsEntity> shortcuts,Context context)
- {
- mShortcuts = shortcuts;
- mContext = context;
- mInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
- isChecked = new ArrayList<Boolean>();
- int size = mShortcuts.size();
- for(int i=0;i<size;i++){
- isChecked.add(false);
- }
- }
- public int getCount() {
- if(mShortcuts!=null){
- return mShortcuts.size();
- }
- return 0;
- }
- public Object getItem(int arg0) {
- if(mShortcuts!=null){
- return mShortcuts.get(arg0);
- }
- return null;
- }
- public long getItemId(int arg0) {
- return 0;
- }
- public View getView(int position, View convertView, ViewGroup parent) {
- ViewHolder holder = null;
- ShortcutsEntity entity = mShortcuts.get(position);
- if(convertView==null){
- holder = new ViewHolder();
- convertView = mInflater.inflate(R.layout.add_shortcuts_adapter, parent, false);
- holder.imageView = (ImageView) convertView.findViewById(R.id.sc_icon);
- holder.textView = (TextView) convertView.findViewById(R.id.sc_title);
- holder.checkBox = (CheckBox) convertView.findViewById(R.id.sc_checkbox);
- convertView.setTag(holder);
- }else{
- holder = (ViewHolder) convertView.getTag();
- }
- if(entity!=null){
- holder.textView.setText(entity.Title);
- //TODO: Modify the picture size.
- holder.imageView.setBackgroundDrawable(Utilities.getDrawable(entity.Icon));
- }
- if(isChecked!=null && !isChecked.isEmpty()){
- holder.checkBox.setChecked(isChecked.get(position));
- }
- return convertView;
- }
- public void setSelectItem(int item){
- if(isChecked.get(item)){
- isChecked.set(item, false);
- }else{
- isChecked.set(item,true);
- }
- }
- private class ViewHolder{
- ImageView imageView;
- TextView textView;
- CheckBox checkBox;
- }
- }
- </span>
- <span style="font-size:18px;">package com.android.launcherex;
- import android.content.pm.ResolveInfo;
- import android.graphics.drawable.Drawable;
- public class ShortcutsEntity {
- public CharSequence Title;
- public Drawable Icon;
- public ResolveInfo Info;
- }
- </span>
- <span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
- <RelativeLayout
- xmlns:android="http://schemas.android.com/apk/res/android"
- android:orientation="vertical"
- android:layout_width="match_parent"
- android:layout_height="match_parent">
- <ImageView
- android:id="@+id/sc_icon"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_alignParentTop="true"
- android:layout_alignParentLeft="true"
- android:layout_marginLeft="6dip"/>
- <TextView
- android:id="@+id/sc_title"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_alignParentTop="true"
- android:layout_toRightOf="@+id/sc_icon"
- android:layout_marginLeft="4dip"/>
- <CheckBox
- android:id="@+id/sc_checkbox"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_alignParentTop="true"
- android:layout_alignParentRight="true"
- android:focusable="false"
- android:layout_marginRight="6dip"/>
- </RelativeLayout>
- </span>
- <span style="font-size:18px;"><?xml version="1.0" encoding="utf-8"?>
- <RelativeLayout
- xmlns:android="http://schemas.android.com/apk/res/android"
- android:orientation="vertical"
- android:layout_width="match_parent"
- android:layout_height="match_parent">
- <ListView
- android:id="@+id/shortcuts_list"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:layout_alignParentLeft="true"
- android:layout_alignParentTop="true"
- android:layout_above="@+id/shortcuts_layout"
- />
- <LinearLayout
- android:id="@+id/shortcuts_layout"
- android:layout_width="match_parent"
- android:layout_height="wrap_content"
- android:orientation="horizontal"
- android:layout_alignParentLeft="true"
- android:layout_alignParentBottom="true"
- >
- <Button
- android:id="@+id/shortcuts_add"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:text="@string/shortcuts_add_text"/>
- <Button
- android:id="@+id/shortcuts_cancel"
- android:layout_width="wrap_content"
- android:layout_height="wrap_content"
- android:layout_weight="1"
- android:text="@string/shortcuts_cancel_text"
- />
- </LinearLayout>
- </RelativeLayout>
- </span>
最后在Launcher.java的onActivityResult方法中添加如下代码，即大功告成
- <span style="font-size:18px;">Bundle bundle = data.getExtras();
- ArrayList<Intent> intents = (ArrayList<Intent>) bundle.getSerializable("intents");
- if (intents != null && !intents.isEmpty()) {
- int size = intents.size();
- for (int i = 0; i < size; i++) {
- mAddItemCellInfo = new CellLayout.CellInfo(); // Shortcut to solve the problem of overlapping
- completeAddApplication(this, intents.get(i),mAddItemCellInfo);
- }
- }
- break;</span>