Android小部件的两个按钮,它们以不同的意图调用同一活动 [英] Two buttons of Android widgets calling same Activity with different intents
问题描述
我在Android中有一个带有两个按钮的homescreenwidget.这两个按钮都应该调用同一活动(类),只是使用不同的意图加上意图之外,才能知道哪个按钮称为类. 目前,只有button1在起作用并正在调用该活动.我还收到了称为活动"的键值.
I have a homescreenwidget in Android with two buttons. Both buttons should call the same activity ( class ) just use a different intent plus intent extras, to know which button called the class. For now only button1 is working and calling the activity. I also receive the keyvalue in the called Activity.
如何使第二个按钮起作用? 这是我的代码:
How can i make the second button work? Here's my code:
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
super.onUpdate(context, appWidgetManager, appWidgetIds);
for ( int i =0; i<appWidgetIds.length ; i++){
int appWidgetId = appWidgetIds[i];
Intent intent2 = new Intent(context, Main.class);
Intent intent1 = new Intent(context, Main.class);
// Intent put extras Button 1
String bread1 = "secure";
Bundle basket1 = new Bundle();
basket1.putString("key", bread1);
intent1.putExtras(basket1);
// Intent put extras Button 2
String bread2 = "insecure";
Bundle basket2 = new Bundle();
basket2.putString("key", bread2);
intent2.putExtras(basket2);
PendingIntent pending1 = PendingIntent.getActivity(context,0,intent1, 0);
PendingIntent pending2 = PendingIntent.getActivity(context, 0, intent2, 0);
RemoteViews views1 = new RemoteViews(context.getPackageName(),R.layout.maina);
RemoteViews views2 = new RemoteViews(context.getPackageName(),R.layout.maina);
views1.setOnClickPendingIntent(R.id.button1, pending1);
views2.setOnClickPendingIntent(R.id.button2, pending2);
appWidgetManager.updateAppWidget(appWidgetId, views1);
appWidgetManager.updateAppWidget(appWidgetId, views2);
这是maina.xml
here is the maina.xml
<?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="fill_parent" android:weightSum="1" android:orientation="vertical">
<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TextView" android:id="@+id/tvWidget" android:textAppearance="?android:attr/textAppearanceLarge"></TextView>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" android:weightSum="1" android:orientation="horizontal">
<Button android:text="@string/button1" android:id="@+id/button1" android:layout_height="wrap_content" android:layout_width="wrap_content"></Button>
<Button android:text="@string/button2" android:id="@+id/button2" android:layout_height="wrap_content" android:layout_width="wrap_content"></Button>
</LinearLayout>
</LinearLayout>
推荐答案
@Arnold,您创建了2个PendingIntent,它们是....
@Arnold you have created 2 PendingIntent which are....
PendingIntent pending1 = PendingIntent.getActivity(context,0,intent1, 0);
PendingIntent pending2 = PendingIntent.getActivity(context, 0, intent2, 0);
其中PendingIntent.getActivity(Context context,int requestCode,Intent intent,int flags)有4个参数.您必须为不同的PendingIntent发送不同的" requestCode ".
Where PendingIntent.getActivity(Context context, int requestCode, Intent intent, int flags) has 4 parameters. You have to send different "requestCode" for different PendingIntents.
您的代码应该是....
Your code should be....
PendingIntent pending1 = PendingIntent.getActivity(context,0,intent1, PendingIntent.FLAG_UPDATE_CURRENT);
PendingIntent pending2 = PendingIntent.getActivity(context, 1, intent2, PendingIntent.FLAG_UPDATE_CURRENT);
在主类中,您需要创建此文件...
in the main class you need to create this...
String value;
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
Bundle b=intent.getExtras();
try{
value=b.getString("key");
}
catch (Exception e) {
// TODO: handle exception
}
super.onReceive(context, intent);
}
带有onUpdate代码....
with the onUpdate code....
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// Get all ids
ComponentName thisWidget = new ComponentName(context,
main.class);
int[] allWidgetIds = appWidgetManager.getAppWidgetIds(thisWidget);
for (int widgetId : allWidgetIds) {
// Create some random data
RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
R.layout.main);
// Register an onClickListener for 1st button
Intent intent = new Intent(context, main.class);
intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,allWidgetIds);
intent.putExtra("key", "1st Button");
PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setOnClickPendingIntent(R.id.button1, pendingIntent);
// Register an onClickListener for 2nd button............
Intent intent2 = new Intent(context, main.class);
intent2.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
intent2.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,allWidgetIds);
intent2.putExtra("key", "2nd Button");
PendingIntent pendingIntent2 = PendingIntent.getBroadcast(context,
1, intent2, PendingIntent.FLAG_UPDATE_CURRENT);
remoteViews.setOnClickPendingIntent(R.id.button2, pendingIntent2);
appWidgetManager.updateAppWidget(widgetId, remoteViews);
}
}
然后,您可以检查 value = 1个第一个按钮还是 value = 2nd个按钮,以了解单击了哪个按钮. 它应该可以工作.如果它不能工作,请让我知道是什么问题...
Then you can check whether value=1st Button or value=2nd Button to know which Button has been clicked. It should work... IF it does not work please let me know what is the problem...
这篇关于Android小部件的两个按钮,它们以不同的意图调用同一活动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!