Android的更新部件的外观 [英] android update widget appearance
本文介绍了Android的更新部件的外观的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想改变,当用户点击它的一个Android小工具的视觉元素之一。这是小部件的XML
I want to change one of the visual elements of an android widget when the user clicks it. This is in the widget's xml
<ImageView
android:id="@+id/bg"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="false"
android:layout_marginLeft="20dp"
android:layout_marginTop="18dp"
android:src="@drawable/seal" />
我想根据一个ID的改变src,所以从部件我打算送远程视窗点击监听器
Intent bgSwitch = new Intent(widgetContext, MainActivity.class);
bgSwitch.putExtra("jurisdiction", "bg");
PendingIntent bgIntent = PendingIntent.getActivity(widgetContext,
6, bgSwitch, PendingIntent.FLAG_UPDATE_CURRENT);
remoteView.setOnClickPendingIntent(R.id.bg, bgIntent);
和透明的活动(或部件本身)我想以某种方式修改的ImageView
的来源。
and in a transparent activity (or in the widget itself) I want to somehow change the imageview
's source.
我不希望只是翻动一堆 imageviews
的知名度。
I don't want to just flip the visibility of a bunch of imageviews
.
将如何实现这一目标?
推荐答案
您可以试试这个方法:
public class SwitchWidget extends AppWidgetProvider {
public static String SWITCH_WIDGET_UPDATE = "MainActivity.Switch";
public static String WIFI = "wifi";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// TODO Auto-generated method stub
super.onUpdate(context, appWidgetManager, appWidgetIds);
updateSwitch1(context, appWidgetManager, appWidgetIds[0]);
}
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
super.onReceive(context, intent);
Log.d("SWitch Widget", "On Receive");
WifiManager wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
RemoteViews remoteViews;
AppWidgetManager appWidgetManager = AppWidgetManager
.getInstance(context);
if (SWITCH_WIDGET_UPDATE.equals(intent.getAction())) {
Log.d("SWitch Widget", "Widget Choose");
ComponentName thisAppWidget = new ComponentName(
context.getPackageName(), getClass().getName());
int ids[] = appWidgetManager.getAppWidgetIds(thisAppWidget);
for (int appWidgetID : ids) {
updateSwitch1(context, appWidgetManager, appWidgetID);
}
}
}
if (intent.getAction().equals(WIFI)) {
if(wifiManager.isWifiEnabled())
wifiManager.setWifiEnabled(false);
else
wifiManager.setWifiEnabled(true);
// appWidgetManager.updateAppWidget(1, remoteViews);
}
else if (intent.getAction().equals(WifiManager.WIFI_STATE_CHANGED_ACTION)) {
remoteViews = new RemoteViews(context.getPackageName(),
R.layout.widget1);
wifiManager = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
if (wifiManager.isWifiEnabled()) {
remoteViews.setImageViewResource(R.id.button_one,
R.drawable.switch_1_wifi_on);
} else {
remoteViews.setImageViewResource(R.id.button_one,
R.drawable.switch_1_wifi_off);
}
appWidgetManager.updateAppWidget(new ComponentName(context,
SwitchWidget.class), remoteViews);
}
private void updateSwitch1(Context context,
AppWidgetManager appWidgetManager, int appWidgetId) {
// TODO Auto-generated method stub
Log.d("SWitch Widget", "Switch1");
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.widget1);
WifiManager wifi = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
if (wifi.isWifiEnabled())
remoteViews.setImageViewResource(R.id.button_one, R.drawable.switch_1_wifi_on);
else
remoteViews
.setImageViewResource(R.id.button_one, R.drawable.switch_1_wifi_off);
Intent wifiIntent = new Intent(context, SwitchWidget.class);
wifiIntent.putExtra("ID", appWidgetId);
wifiIntent.setAction(WIFI);
PendingIntent wifiPendingIntent = PendingIntent.getBroadcast(context,
0, wifiIntent, 0);
remoteViews.setOnClickPendingIntent(R.id.button_one, wifiPendingIntent);
appWidgetManager.updateAppWidget(appWidgetId, remoteViews);
}
}
和也不要忘了在你的manifest文件为补充的行动,并添加权限。
And also don't forget to add action in your manifest file and also add permissions for that.
<action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
<action android:name="wifi" />
这篇关于Android的更新部件的外观的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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