Android Widget Desktop component creation

Package com. king. android. speical; import com. king. android. r; import android. appwidget. appWidgetManager; import android. appwidget. appWidgetProvider; import android. content. componentName; import android. content. context; import android. content. pm. packageManager; import android. widget. remoteViews;/*** Description: Create widget class * Author: Andy. liu * Time: 07:01:39 **/public class ExampleAppWidgetProvider extends AppWidgetProvider {@ Overridepublic void onUpdate (Context context, AppWidgetManager appWidgetManager, int [] appWidgetIds) {final int N = appWidgetIds. length; for (int I = 0; I <N; I ++) {int appWidgetId = appWidgetIds [I]; String titlePrefix = WidgetActivity. loadTitlePref (context, appWidgetId); updateAppWidget (context, appWidgetManager, appWidgetId, titlePrefix);} super. onUpdate (context, appWidgetManager, appWidgetIds);} // call @ Overridepublic void onDeleted (Context context, int [] appWidgetIds) when the Desktop component is deleted) {// Delete appWidgetfinal int N = appWidgetIds. length; for (int I = 0; I <N; I ++) {WidgetActivity. deleteTitlePref (context, appWidgetIds [I]) ;}}// call @ Overridepublic void onEnabled (Context context) {PackageManager pm = context when the first component provided by AppWidtgetProvider is deleted. getPackageManager (); pm. setComponentEnabledSetting (new ComponentName ("com. king. android. special ",". exampleBroadCastReceiver "), PackageManager. COMPONENT_ENABLED_STATE_ENABLED, PackageManager. DONT_KILL_APP);} // call @ Overridepublic void onDisabled (Context context) {PackageManager pm = context when the last component provided by AppWidtgetProvider is deleted. getPackageManager (); pm. setComponentEnabledSetting (new ComponentName ("com. king. android. special ",". exampleBroadCastReceiver "), PackageManager. COMPONENT_ENABLED_STATE_ENABLED, PackageManager. DONT_KILL_APP);} // update static void updateAppWidget (Context context, AppWidgetManager appwidgetManager, int appWidgetId, String titlePrefix) {// construct the RemoteViews object to update the Desktop component RemoteViews views = new RemoteViews (context. getPackageName (), R. layout. appwidget_provider); // update the text content, specifying the layout component views. setTextViewText (R. id. appwidget_text, titlePrefix); // update RemoteViews to AppWidget to update appwidgetManager. updateAppWidget (appWidgetId, views );}}

 

 

Package com. king. android. speical; import java. util. arrayList; import android. appwidget. appWidgetManager; import android. content. broadcastReceiver; import android. content. context; import android. content. intent;/*** Description: information received by creating a broadcast class * Author: Andy. liu * Time: 07:03:30 **/public class extends BroadcastReceiver {@ Overridepublic void onReceive (Context context, Intent intent) {// update AppWidgetString action = intent through BroadCastReceiver. getAction (); if (action. equals (Intent. ACTION_TIMEZONE_CHANGED) | action. equals (Intent. ACTION_TIME_CHANGED) {AppWidgetManager gm = AppWidgetManager. getInstance (context); ArrayList <Integer> appWidgetIds = new ArrayList <Integer> (); ArrayList <String> texts = new ArrayList <String> (); WidgetActivity. loadAllTitlePrefs (context, appWidgetIds, texts); // update all AppWidgetfinal int N = appWidgetIds. size (); for (int I = 0; I <N; I ++) {ExampleAppWidgetProvider. updateAppWidget (context, gm, appWidgetIds. get (I), texts. get (I ));}}}}

 

Package com. king. android. speical;

Import java. util. arrayList; import android. app. activity; import android. appwidget. appWidgetManager; import android. content. context; import android. content. intent; import android. content. sharedPreferences; import android. OS. bundle; import android. view. view; import android. widget. editText; import com. king. android. r; public class WidgetActivity extends Activity {private static final StringPREFS_NAME = "com. king. a Ndroid. exampleAppWidgetProvider "; private static final StringPREF_PREFIX_KEY =" prefix _ "; intmAppWidgetId = AppWidgetManager. INVALID_APPWIDGET_ID; EditTextmAppWidgetPrefix; public WidgetActivity () {super ();} public void onCreate (Bundle icicle) {super. onCreate (icicle); setResult (RESULT_CANCELED); setContentView (R. layout. appwidget_configure); mAppWidgetPrefix = (EditText) findViewById (R. id. appwidget_prefix); fin DViewById (R. id. save_button). setOnClickListener (mOnClickListener); Intent intent = getIntent (); Bundle extras = intent. getExtras (); if (extras! = Null) {mAppWidgetId = extras. getInt (AppWidgetManager. EXTRA_APPWIDGET_ID, AppWidgetManager. INVALID_APPWIDGET_ID);} if (mAppWidgetId = AppWidgetManager. INVALID_APPWIDGET_ID) {finish ();} mAppWidgetPrefix. setText (loadTitlePref (WidgetActivity. this, mAppWidgetId);} View. onClickListenermOnClickListener = new View. onClickListener () {public void onClick (View v) {final Context context = WidgetActivity. this; Stri Ng titlePrefix = mAppWidgetPrefix. getText (). toString (); saveTitlePref (context, mAppWidgetId, titlePrefix); // obtain the AppWidgetManager instance AppWidgetManager appWidgetManager = AppWidgetManager. getInstance (context); // update AppWidgetExampleAppWidgetProvider. updateAppWidget (context, appWidgetManager, mAppWidgetId, titlePrefix); Intent resultValue = new Intent (); resultValue. putExtra (AppWidgetManager. EXTRA_APPWIDGET_ID, MAppWidgetId); setResult (RESULT_ OK, resultValue); finish () ;}}; static void saveTitlePref (Context context, int appWidgetId, String text) {SharedPreferences. editor prefs = context. getSharedPreferences (PREFS_NAME, 0 ). edit (); prefs. putString (PREF_PREFIX_KEY + appWidgetId, text); prefs. commit ();} static String loadTitlePref (Context context, int appWidgetId) {SharedPreferences prefs = context. getSharedPreferen Ces (PREFS_NAME, 0); String prefix = prefs. getString (PREF_PREFIX_KEY + appWidgetId, null); if (prefix! = Null) {return prefix;} else {return "xxxxxxxxxxxxxxxxx" ;}} static void deleteTitlePref (Context context, int appWidgetId) {} static void loadAllTitlePrefs (Context context, arrayList <Integer> appWidgetIds, ArrayList <String> texts ){}}

<? Xml version = "1.0" encoding = "UTF-8"?>

<LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android" android: layout_width = "fill_parent" android: layout_height = "wrap_content" android: orientation = "vertical"> <TextView android: layout_width = "fill_parent" android: layout_height = "wrap_content"/> <EditText android: id = "@ + id/appwidget_prefix" android: layout_width = "fill_parent" android: layout_height = "wrap_content"/> <Button android: id = "@ + id/save_button" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: text = "@ android: string/OK"/> </LinearLayout>

 

<? Xml version = "1.0" encoding = "UTF-8"?>

<Appwidget-provider xmlns: android = "http://schemas.android.com/apk/res/android" android: minWidth = "100dp" android: minHeight = "50dp" android: updatePeriodMillis = "86400000" android: initialLayout = "@ layout/appwidget_provider"/>

<? Xml version = "1.0" encoding = "UTF-8"?>

<TextView xmlns: android = "http://schemas.android.com/apk/res/android" android: id = "@ + id/appwidget_text" android: layout_width = "wrap_content" android: layout_height = "wrap_content"/>