一个切换的Widget

因为是widget所以效果图不上了，直接看布局文件吧：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="108px"    android:layout_height="124px"    android:gravity="center"    android:orientation="vertical" >    <ImageView        android:id="@+id/newwork_switch"        android:layout_width="fill_parent"        android:layout_height="fill_parent"        /></LinearLayout>

在看看manifest文件吧：

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.xxx.networkswitch"    android:versionCode="1"    android:versionName="1.0"    android:sharedUserId="android.uid.system" >    <!-- <uses-sdk android:minSdkVersion="15" /> -->      <uses-permission android:name="android.permission.WRITE_APN_SETTINGS"/>           <application        android:label="@string/app_name" >                <receiver android:name=".NetworkSwitchWidgetProvider"            android:icon="@drawable/net_press"><meta-data android:name="android.appwidget.provider"android:resource="@xml/appwidget_provider"></meta-data><intent-filter><action android:name="com.xxx.action.widget.click"></action><action android:name="android.appwidget.action.APPWIDGET_UPDATE" /><action android:name="com.xxx.action.widget.network.changed" /></intent-filter></receiver>        </application></manifest>

好吧看看重点

android:resource="@xml/appwidget_provider"></meta-data>

<?xml version="1.0" encoding="UTF-8"?><appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"   android:minWidth="54dip"    android:minHeight="62dip"    android:updatePeriodMillis="0"    android:previewImage="@drawable/net_press"    android:initialLayout="@layout/main"></appwidget-provider>

下面只能看看代码了：

package com.lenovo.networkswitch;import android.app.PendingIntent;import android.appwidget.AppWidgetManager;import android.appwidget.AppWidgetProvider;import android.telephony.MSimTelephonyManager;import android.telephony.TelephonyManager;import android.util.Log;import android.content.ComponentName;import android.content.ContentResolver;import android.content.ContentValues;import android.content.Context;import android.content.Intent;import android.database.Cursor;import android.net.Uri;import android.widget.RemoteViews;import android.widget.Toast;/** *  * @author dong xt 2012.3.17 * Funtion : NetworkSwitch toggle *  */public class NetworkSwitchWidgetProvider extends AppWidgetProvider {private static final String CLICK_NAME_ACTION = "com.xxx.action.widget.click";private static final String NETWORK_STATE_CHANGED = "com.xxx.action.widget.network.changed";public static final String PREFERRED_APN_URI =        "content://telephony/carriers/preferapn";private static final Uri PREFERAPN_URI = Uri.parse(PREFERRED_APN_URI); private static RemoteViews remoteViews;private static final int ID_INDEX = 0;public static final String APN_ID = "apn_id";private static final String WAP = "389";private static final String NET = "388";private static String mSelectedKey;@Overridepublic void onUpdate(Context context, AppWidgetManager appWidgetManager,int[] appWidgetIds) {// TODO Auto-generated method stubfinal int N = appWidgetIds.length;for (int i = 0; i < N; i++) {int appWidgetId = appWidgetIds[i];updateAppWidget(context, appWidgetManager, appWidgetId);}}@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubsuper.onReceive(context, intent);if (remoteViews == null) {remoteViews = new RemoteViews(context.getPackageName(), R.layout.main);}mSelectedKey = getSelectedApnKey(context);if (intent.getAction().equals(CLICK_NAME_ACTION)) {if ((mSelectedKey != null) && mSelectedKey.equals(NET)) {setSelectedApnKey(WAP,context);remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.wap_network);} else if ((mSelectedKey != null) && mSelectedKey.equals(WAP)){setSelectedApnKey(NET,context);remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.net_network);}}else if(intent.getAction().equals(NETWORK_STATE_CHANGED)){remoteViewsSetImageView(context);}elseif(mSelectedKey == null || (!mSelectedKey.equals(NET) && !mSelectedKey.equals(WAP))){remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.disable);Toast.makeText(context, "网络切换不可用,请检查电话卡", Toast.LENGTH_SHORT).show();}AppWidgetManager appWidgetManger = AppWidgetManager.getInstance(context);int[] appIds = appWidgetManger.getAppWidgetIds(new ComponentName(context, NetworkSwitchWidgetProvider.class));appWidgetManger.updateAppWidget(appIds, remoteViews);}public void updateAppWidget(Context context,AppWidgetManager appWidgeManger, int appWidgetId) {remoteViews = new RemoteViews(context.getPackageName(), R.layout.main);MSimTelephonyManager mTelephonyManager = (MSimTelephonyManager)context.getSystemService(Context.MSIM_TELEPHONY_SERVICE);if(mTelephonyManager.getSimState(0) != mTelephonyManager.SIM_STATE_READY){remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.disable);}else{remoteViewsSetImageView(context);Intent intentclick = new Intent();ComponentName cn = new ComponentName("com.android.settings", "com.android.settings.ApnSettings");intentclick.putExtra("subscription", 0);intentclick.setComponent(cn);PendingIntent pendingIntent = PendingIntent.getActivity(context,                0 /* no requestCode */, intentclick, 0 /* no flags */);remoteViews.setOnClickPendingIntent(R.id.newwork_switch, pendingIntent);}/*remoteViewsSetImageView(context);Intent intentClick = new Intent();intentClick.setAction(CLICK_NAME_ACTION);PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0,intentClick, 0);remoteViews.setOnClickPendingIntent(R.id.newwork_switch, pendingIntent);*/appWidgeManger.updateAppWidget(appWidgetId, remoteViews);}private void setSelectedApnKey(String key,Context context) {       mSelectedKey = key;       ContentResolver resolver = context.getContentResolver();       ContentValues values = new ContentValues();       values.put(APN_ID, mSelectedKey);       resolver.update(PREFERAPN_URI, values, null, null);   }private void remoteViewsSetImageView(Context context){mSelectedKey = getSelectedApnKey(context);if ((mSelectedKey != null) && mSelectedKey.equals(WAP)) {remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.wap_network);} else if ((mSelectedKey != null) && mSelectedKey.equals(NET)){remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.net_network);}elseif(mSelectedKey == null || (!mSelectedKey.equals(NET) && !mSelectedKey.equals(WAP))){remoteViews.setImageViewResource(R.id.newwork_switch, R.drawable.disable);}}private String getSelectedApnKey(Context context) {        String key = null;        Cursor cursor = context.getContentResolver().query(PREFERAPN_URI, new String[] {"_id"}, null, null, "name ASC");if(cursor.getCount() > 0){cursor.moveToFirst();key = cursor.getString(ID_INDEX);}cursor.close();        return key; }}

更多相关文章

随机推荐