关于 ADW Launcher 无法添加widget的问题

Question

本帖最后由 swingboy 于 2011-06-04 21:21:42 编辑

Answer 1

06-04 12:33:41.003: ERROR/AndroidRuntime(264): Caused by: java.lang.NullPointerException引发错误的主要原因是空指针！debug->Logcat  

Answer 2

应该是在选择widget的时候，会跳转到settings的AppWidgetPickActivity ，同时会传递一些参数，你看看是不是参数传少了  

Answer 3

我也知道是空指针错误啊，报错是在源码里的，并且你也无法debug到源码

Answer 4

好吧这个问题已经解决了，解决办法将原生态的Launcher2里部分源码粘贴过来如下面这样
        /**
         * Handle the action clicked in the "Add to home" dialog.
         */
        public void onClick(DialogInterface dialog, int which) {
            getResources();
            cleanup();            switch (which) {
                case AddAdapter.ITEM_SHORTCUT: {
                    // Insert extra item to handle picking application
                    pickShortcut();
                    break;
                }                case AddAdapter.ITEM_APPWIDGET: {
                    int appWidgetId = Launcher.this.mAppWidgetHost.allocateAppWidgetId();                    Intent pickIntent = new Intent(AppWidgetManager.ACTION_APPWIDGET_PICK);
                    pickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
                    
                    // add the search widget
                    ArrayList<AppWidgetProviderInfo> customInfo =
                            new ArrayList<AppWidgetProviderInfo>();
                    AppWidgetProviderInfo info = new AppWidgetProviderInfo();
                    info.provider = new ComponentName(getPackageName(), "XXX.YYY");
                    info.label = getString(R.string.application_name);
                    info.icon = R.drawable.ic_home_arrows_1_focus;
                    customInfo.add(info);
                    pickIntent.putParcelableArrayListExtra(
                            AppWidgetManager.EXTRA_CUSTOM_INFO, customInfo);
                    ArrayList<Bundle> customExtras = new ArrayList<Bundle>();
                    Bundle b = new Bundle();
                    b.putString(EXTRA_CUSTOM_WIDGET, SEARCH_WIDGET);
                    customExtras.add(b);
                    pickIntent.putParcelableArrayListExtra(
                            AppWidgetManager.EXTRA_CUSTOM_EXTRAS, customExtras);
                    
                    // start the pick activity
                    startActivityForResult(pickIntent, REQUEST_PICK_APPWIDGET);
                    break;
                }                case AddAdapter.ITEM_LIVE_FOLDER: {
                    Launcher.this.requestPickLiveFolder(false);
                    break;
                }
                case AddAdapter.ITEM_ANYCUT: {
                        Intent anycutIntent=new Intent();
                        anycutIntent.setClass(Launcher.this, CustomShirtcutActivity.class);
                        startActivityForResult(anycutIntent, REQUEST_PICK_ANYCUT);
                    break;
                }
                case AddAdapter.ITEM_WALLPAPER: {
                    startWallpaper();
                    break;
                }
            }
        }
    }