与分离工作可点击的ImageView小部件的多个实例 [英] multiple instances of widget with separated working clickable ImageView
本文介绍了与分离工作可点击的ImageView小部件的多个实例的处理方法，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
我试图让ImageView的小工具，当上了插件的用户点击，它改变了形象。
但问题是，当我有多个实例，并点击其中之一，它改变了图像中的所有实例。
我曾尝试code在这里：
<一href=\"http://stackoverflow.com/questions/17763871/updating-multiple-instances-of-app-widget-in-android\">Updating在Android的应用控件的多个实例
但没有工作。
这是我的code：
包com.appwidget.test;进口android.app.PendingIntent;
进口android.appwidget.AppWidgetManager;
进口android.appwidget.AppWidgetProvider;
进口android.content.ComponentName;
进口android.content.Context;
进口android.content.Intent;
进口android.widget.RemoteViews;
公共类MyWidgetProvider扩展AppWidgetProvider { @覆盖
公共无效的onUpdate（上下文的背景下，AppWidgetManager appWidgetManager，
INT [] appWidgetIds）{
// super.onUpdate（背景下，appWidgetManager，appWidgetIds）; //初始化窗口小部件布局
RemoteViews remoteViews =新的RemoteViews（context.getPackageName（），R.layout.widget_main）; //注册按钮事件
remoteViews.setOnClickPendingIntent（R.id.widgetImageView，buildButtonPendingIntent（上下文））; //请求窗口更新
pushWidgetUpdate（背景下，remoteViews）; } 公共静态无效pushWidgetUpdate（上下文的背景下，RemoteViews remoteViews）{
组件名进myWidget =新的组件名（背景下，MyWidgetProvider.class）;
AppWidgetManager经理= AppWidgetManager.getInstance（背景）;
manager.updateAppWidget（进myWidget，remoteViews）; } 公共静态的PendingIntent buildButtonPendingIntent（上下文的背景下）{
意向意图=新的Intent（）;
intent.setAction（WidgetUtils.WIDGET_UPDATE_ACTION）; 返回PendingIntent.getBroadcast（背景下，0，意向，
PendingIntent.FLAG_UPDATE_CURRENT）;
}}
包com.appwidget.test;进口android.content.BroadcastReceiver;
进口android.content.Context;
进口android.content.Intent;
进口android.widget.RemoteViews;公共类MyWidgetIntentReceiver扩展广播接收器{
公共静态INT的clickCount = 1; @覆盖
公共无效的onReceive（上下文的背景下，意图意图）{ 如果（intent.getAction（）。等于（WidgetUtils.WIDGET_UPDATE_ACTION））{
updateWidgetPictureAndButtonListener（上下文）;
} } 私人无效updateWidgetPictureAndButtonListener（上下文的背景下）{ RemoteViews remoteViews =新的RemoteViews（context.getPackageName（），R.layout.widget_main）;
remoteViews.setImageViewResource（R.id.widgetImageView，getImageToSet（））; remoteViews.setOnClickPendingIntent（R.id.widgetImageView，MyWidgetProvider.buildButtonPendingIntent（上下文））;
MyWidgetProvider.pushWidgetUpdate（背景下，remoteViews）; } 私人诠释getImageToSet（）{ 如果（==的clickCount 5）
{
的clickCount = 0;
} INT可绘制= R.drawable.ui1 +的clickCount; 的clickCount ++; 返回绘制资源;
}}
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT;清单的xmlns：机器人=http://schemas.android.com/apk/res/android
包=com.appwidget.test＆GT; ＆lt;应用
机器人：allowBackup =真
机器人：图标=@的mipmap / ic_launcher
机器人：标签=@字符串/ APP_NAME
机器人：主题=@风格/ AppTheme＆GT;
＆LT;活动
机器人：名字=泼水节
机器人：标签=@字符串/ APP_NAME＆GT;
＆所述;意图滤光器＆gt;
＆lt;作用机器人：名字=android.intent.action.MAIN/＆GT; ＆LT;类机器人：名字=android.intent.category.LAUNCHER/＆GT;
＆所述; /意图滤光器＆gt;
＆LT; /活性GT; ＆lt;接收机器人：名字=MyWidgetProvider＆GT;
＆所述;意图滤光器＆gt;
＆lt;作用机器人：名字=android.appwidget.action.APPWIDGET_UPDATE/＆GT;
＆所述; /意图滤光器＆gt; ＆所述;元数据
机器人：名字=android.appwidget.provider
机器人：资源=@ XML / widget_provider/＆GT;
＆LT; /接收器＆GT; ＆lt;接收
机器人：名字=MyWidgetIntentReceiver
机器人：标签=@字符串/ APP_NAME＆GT;
＆所述;意图滤光器＆gt;
＆lt;作用机器人：名字=WidgetUtils.WIDGET_UPDATE_ACTION/＆GT;
＆所述; /意图滤光器＆gt; ＆所述;元数据
机器人：名字=android.appwidget.provider
机器人：资源=@ XML / widget_provider/＆GT;
＆LT; /接收器＆GT; ＆LT; /用途＆gt;＆LT; /清单＆GT;
＆LT;？XML版本=1.0编码=UTF-8＆GT？;
＆LT; appwidget提供商的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：initialLayout =@布局/ widget_main
安卓了minWidth =110dp
安卓了minHeight =40dp
机器人：updatePeriodMillis =0
机器人：resizeMode =横|纵＆GT;
＆LT; - 机器人：previewImage =@绘制/ - ＆GT;
＆LT;！ - N =细胞数 - ＆GT;
＆LT; - ！70×N - 30 - ＆GT;＆LT; / appwidget提供商＆GT;
＆LT;的RelativeLayout的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：背景=@机器人：彩色/透明＆GT; ＆LT; ImageView的 机器人：layout_width =match_parent
机器人：layout_height =match_parent
机器人：ID =@ + ID / widgetImageView
机器人：SRC =@绘制/ UI1
机器人：layout_centerVertical =真
机器人：layout_centerHorizontal =真/＆GT;＆LT; / RelativeLayout的＆GT;
解决方案
该方法updateAppWidget（组件名供应商，RemoteViews视图）设置RemoteViews要用于所提供的AppWidget提供商所有AppWidget实例。
您想要使用此方法：updateAppWidget（INT appWidgetId，RemoteViews意见），它设置RemoteViews用于指定appWidgetId
要做到这一点，你需要跟踪小部件的id的
@覆盖
公共无效的onUpdate（上下文的背景下，AppWidgetManager appWidgetManager，
INT [] appWidgetIds）{
最终诠释N = appWidgetIds.length; 的for（int i = 0; I＆LT; N;我++）{
//为插件的个人ID
INT appWidgetId = appWidgetIds [I] RemoteViews remoteViews =新的RemoteViews（context.getPackageName（），R.layout.widget_main）; //传递appWidgetId到单击处理程序
remoteViews.setOnClickPendingIntent（R.id.widgetImageView，buildButtonPendingIntent（背景下，appWidgetIds [I]））; //传递appWidgetId到更新方法
pushWidgetUpdate（上下文，remoteViews，appWidgetIds [I]）; }
}
然后，更新的两个方法为使用appWidgetId
公共静态无效pushWidgetUpdate（上下文的背景下，RemoteViews remoteViews，诠释appWidgetId）{
AppWidgetManager经理= AppWidgetManager.getInstance（背景）;
manager.updateAppWidget（appWidgetId，remoteViews）;}公共静态的PendingIntent buildButtonPendingIntent（上下文的背景下，诠释appWidgetId）{
意向意图=新的Intent（）;
//把appWidgetId作为额外的意图更新
intent.putExtra（AppWidgetManager.EXTRA_APPWIDGET_ID，为widgetid）;
intent.setAction（WidgetUtils.WIDGET_UPDATE_ACTION）; 返回PendingIntent.getBroadcast（背景下，appWidgetId，意向，
PendingIntent.FLAG_UPDATE_CURRENT）;
}
最后，更新接收器采取额外appWidgetId并用它来更新呼叫
@覆盖
公共无效的onReceive（上下文的背景下，意图意图）{ 如果（intent.getAction（）。等于（WidgetUtils.WIDGET_UPDATE_ACTION））{
INT appWidgetId = intent.getIntExtra（AppWidgetManager.EXTRA_APPWIDGET_ID，AppWidgetManager.INVALID_APPWIDGET_ID）;
updateWidgetPictureAndButtonListener（背景下，INT appWidgetId）;
}}私人无效updateWidgetPictureAndButtonListener（上下文的背景下，诠释appWidgetId）{ RemoteViews remoteViews =新的RemoteViews（context.getPackageName（），R.layout.widget_main）;
remoteViews.setImageViewResource（R.id.widgetImageView，getImageToSet（））; remoteViews.setOnClickPendingIntent（R.id.widgetImageView，MyWidgetProvider.buildButtonPendingIntent（上下文））;
MyWidgetProvider.pushWidgetUpdate（背景下，remoteViews，appWidgetId）;}
I am trying to make ImageView widget, when the user click on the widget, it changes the image.
But the problem is when i have multiple instances, and click on one of them, it changes the image in all instances.
I have tried the code in here: Updating multiple instances of App Widget in Android but didnt work.
This is my code:
package com.appwidget.test;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;
public class MyWidgetProvider extends AppWidgetProvider {
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
// super.onUpdate(context, appWidgetManager, appWidgetIds);
// initializing widget layout
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_main);
// register for button event
remoteViews.setOnClickPendingIntent(R.id.widgetImageView, buildButtonPendingIntent(context));
// request for widget update
pushWidgetUpdate(context, remoteViews);
}
public static void pushWidgetUpdate(Context context, RemoteViews remoteViews) {
ComponentName myWidget = new ComponentName(context, MyWidgetProvider.class);
AppWidgetManager manager = AppWidgetManager.getInstance(context);
manager.updateAppWidget(myWidget, remoteViews);
}
public static PendingIntent buildButtonPendingIntent(Context context) {
Intent intent = new Intent();
intent.setAction("WidgetUtils.WIDGET_UPDATE_ACTION");
return PendingIntent.getBroadcast(context, 0, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
}
}
package com.appwidget.test;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;
public class MyWidgetIntentReceiver extends BroadcastReceiver {
public static int clickCount = 1;
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("WidgetUtils.WIDGET_UPDATE_ACTION")){
updateWidgetPictureAndButtonListener(context);
}
}
private void updateWidgetPictureAndButtonListener(Context context) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_main);
remoteViews.setImageViewResource(R.id.widgetImageView, getImageToSet());
remoteViews.setOnClickPendingIntent(R.id.widgetImageView, MyWidgetProvider.buildButtonPendingIntent(context));
MyWidgetProvider.pushWidgetUpdate(context, remoteViews);
}
private int getImageToSet() {
if (clickCount == 5)
{
clickCount = 0;
}
int drawables = R.drawable.ui1 + clickCount;
clickCount++;
return drawables;
}
}
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.appwidget.test" >
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".Splash"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="MyWidgetProvider" >
<intent-filter>
<action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/widget_provider" />
</receiver>
<receiver
android:name="MyWidgetIntentReceiver"
android:label="@string/app_name" >
<intent-filter>
<action android:name="WidgetUtils.WIDGET_UPDATE_ACTION" />
</intent-filter>
<meta-data
android:name="android.appwidget.provider"
android:resource="@xml/widget_provider" />
</receiver>
</application>
</manifest>
<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
android:initialLayout="@layout/widget_main"
android:minWidth="110dp"
android:minHeight="40dp"
android:updatePeriodMillis="0"
android:resizeMode="horizontal|vertical">
<!--android:previewImage="@drawable/"-->
<!-- n = Number of cells -->
<!--70 × n − 30-->
</appwidget-provider>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@android:color/transparent">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/widgetImageView"
android:src="@drawable/ui1"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
解决方案
The method updateAppWidget(ComponentName provider, RemoteViews views) sets the RemoteViews to use for all AppWidget instances for the supplied AppWidget provider.
You want to use this method: updateAppWidget(int appWidgetId, RemoteViews views) which set the RemoteViews to use for the specified appWidgetId.
To do this you will need to keep track of the widget's id
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
final int N = appWidgetIds.length;
for (int i = 0; i < N; i++) {
// the individual id for the widget
int appWidgetId = appWidgetIds[i];
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_main);
// pass appWidgetId to the click handler
remoteViews.setOnClickPendingIntent(R.id.widgetImageView, buildButtonPendingIntent(context, appWidgetIds[i]));
// pass appWidgetId to the update method
pushWidgetUpdate(context, remoteViews, appWidgetIds[i]);
}
}
Then update the two methods to use the appWidgetId
public static void pushWidgetUpdate(Context context, RemoteViews remoteViews, int appWidgetId) {
AppWidgetManager manager = AppWidgetManager.getInstance(context);
manager.updateAppWidget(appWidgetId, remoteViews);
}
public static PendingIntent buildButtonPendingIntent(Context context, int appWidgetId) {
Intent intent = new Intent();
// put the appWidgetId as an extra to the update intent
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
intent.setAction("WidgetUtils.WIDGET_UPDATE_ACTION");
return PendingIntent.getBroadcast(context, appWidgetId, intent,
PendingIntent.FLAG_UPDATE_CURRENT);
}
Finally, update the receiver to take the appWidgetId extra and use it for the update call
@Override
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals("WidgetUtils.WIDGET_UPDATE_ACTION")){
int appWidgetId = intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
updateWidgetPictureAndButtonListener(context, int appWidgetId);
}
}
private void updateWidgetPictureAndButtonListener(Context context, int appWidgetId) {
RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget_main);
remoteViews.setImageViewResource(R.id.widgetImageView, getImageToSet());
remoteViews.setOnClickPendingIntent(R.id.widgetImageView, MyWidgetProvider.buildButtonPendingIntent(context));
MyWidgetProvider.pushWidgetUpdate(context, remoteViews, appWidgetId);
}
这篇关于与分离工作可点击的ImageView小部件的多个实例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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