widget添加

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1.定义AppWidgetProvider

package com.sineva.rosapidemo.widget;import android.appwidget.AppWidgetManager;import android.appwidget.AppWidgetProvider;import android.content.Context;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.util.Log;import android.widget.RemoteViews;import android.widget.Toast;import com.sineva.rosapidemo.R;import java.util.HashSet;import java.util.Iterator;import java.util.Set;/** * Created by Eligah on 2017/9/29. */public class RobotControllerWidgetProvider extends AppWidgetProvider {    private static final String TAG = "WidgetProvider";    private boolean DEBUG = false;    private final Intent EXAMPLE_SERVICE_INTENT = new Intent("android.appwidget.action.SLAM_APP_WIDGET_SERVICE");    private final String ACTION_UPDATE_ALL = "com.sineva.widget.UPDATE_ALL";    private static Set idsSet = new HashSet();    private static final int BUTTON_SHOW = 1;    @Override    public void onReceive(Context context, Intent intent) {        final String action = intent.getAction();        Log.d(TAG, "OnReceive:Action: " + action);        if (ACTION_UPDATE_ALL.equals(action)) {            updateAllAppWidgets(context, AppWidgetManager.getInstance(context), idsSet);        } else if (intent.hasCategory(Intent.CATEGORY_ALTERNATIVE)) {            // “按钮点击”广播            Uri data = intent.getData();            int buttonId = Integer.parseInt(data.getSchemeSpecificPart());            if (buttonId == BUTTON_SHOW) {                Log.d(TAG, "Button wifi clicked");                Toast.makeText(context, "Button Clicked", Toast.LENGTH_SHORT).show();            }        }        super.onReceive(context, intent);    }    @Override    public void onEnabled(Context context) {        Log.d(TAG, "onEnabled");        EXAMPLE_SERVICE_INTENT.setPackage(context.getPackageName());        context.startService(EXAMPLE_SERVICE_INTENT);        super.onEnabled(context);    }    @Override    public void onAppWidgetOptionsChanged(Context context, AppWidgetManager appWidgetManager, int appWidgetId, Bundle newOptions) {        Log.d(TAG, "onAppWidgetOptionsChanged");        super.onAppWidgetOptionsChanged(context, appWidgetManager, appWidgetId, newOptions);    }    @Override    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {        Log.d(TAG, "onUpdate(): appWidgetIds.length=" + appWidgetIds.length);        for (int appWidgetId : appWidgetIds) {            idsSet.add(Integer.valueOf(appWidgetId));        }        prtSet();    }    @Override    public void onDisabled(Context context) {        Log.d(TAG, "onDisabled");        context.stopService(EXAMPLE_SERVICE_INTENT);        super.onDisabled(context);    }    @Override    public void onDeleted(Context context, int[] appWidgetIds) {        Log.d(TAG, "onDeleted(): appWidgetIds.length=" + appWidgetIds.length);        for (int appWidgetId : appWidgetIds) {            idsSet.remove(Integer.valueOf(appWidgetId));        }        prtSet();        super.onDeleted(context, appWidgetIds);    }    private void updateAllAppWidgets(Context context, AppWidgetManager appWidgetManager, Set set) {        Log.d(TAG, "updateAllAppWidgets(): size=" + set.size());        int appID;        Iterator it = set.iterator();        while (it.hasNext()) {            appID = ((Integer) it.next()).intValue();            RemoteViews remoteView = new RemoteViews(context.getPackageName(), R.layout.robotcontroller_widget);            remoteView.setTextViewText(R.id.tv_battery_v, "25.3V");            //remoteView.setOnClickPendingIntent(R.id.btn_show, getPendingIntent(context,BUTTON_SHOW));            appWidgetManager.updateAppWidget(appID, remoteView);        }    }    /*private PendingIntent getPendingIntent(Context context, int buttonId) {        Intent intent = new Intent();        intent.setClass(context, RobotControllerWidgetProvider.class);        intent.addCategory(Intent.CATEGORY_ALTERNATIVE);        intent.setData(Uri.parse("custom:" + buttonId));        PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0 );        return pi;    }*/    private void prtSet() {        if (DEBUG) {            int index = 0;            int size = idsSet.size();            Iterator it = idsSet.iterator();            Log.d(TAG, "total:" + size);            while (it.hasNext()) {                Log.d(TAG, index + " -- " + ((Integer) it.next()).intValue());            }        }    }}

2.manifest配置

<receiver android:name=".widget.RobotControllerWidgetProvider">    <intent-filter>        <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />        <action android:name="com.sineva.widget.UPDATE_ALL" />    </intent-filter>    <meta-data        android:name="android.appwidget.provider"        android:resource="@xml/robotcontroller_widget_info" /></receiver><service android:name=".service.SLAMAppWidgetService">    <intent-filter>        <action android:name="android.appwidget.action.SLAM_APP_WIDGET_SERVICE" />    </intent-filter></service>

3.定义robotcontroller_widget_info（xml包下）

<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"    android:initialLayout="@layout/robotcontroller_widget"    android:minHeight="180dp"    android:minWidth="180dp"    android:resizeMode="horizontal|vertical"    android:widgetCategory="home_screen|keyguard"></appwidget-provider>

4.定义robotcontroller_widget.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="@color/gray"    android:orientation="vertical">    <Button        android:id="@+id/button2"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Button" />    <Button        android:id="@+id/button3"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:text="Button" />    <TextView        android:id="@+id/tv_battery_v"        android:layout_width="match_parent"        android:layout_height="match_parent" /></LinearLayout>

5.定义SLAMAppWidgetService

package com.sineva.rosapidemo.service;import android.app.Service;import android.content.Context;import android.content.Intent;import android.os.IBinder;import android.util.Log;/** * Created by Eligah on 2017/9/29. */public class SLAMAppWidgetService extends Service {    private static final String TAG = "SlamAppWidgetService";    private final String ACTION_UPDATE_ALL = "com.sineva.widget.UPDATE_ALL";    private static final int UPDATE_TIME = 5000;    private UpdateThread mUpdateThread;    private Context mContext;    private int count = 0;    @Override    public void onCreate() {        mUpdateThread = new UpdateThread();        mUpdateThread.start();        mContext = this.getApplicationContext();        super.onCreate();    }    @Override    public void onDestroy() {        if (mUpdateThread != null) {            mUpdateThread.interrupt();        }        super.onDestroy();    }    @Override    public IBinder onBind(Intent intent) {        return null;    }    @Override    public int onStartCommand(Intent intent, int flags, int startId) {        Log.d(TAG, "onStartCommand");        super.onStartCommand(intent, flags, startId);        return START_STICKY;    }    private class UpdateThread extends Thread {        @Override        public void run() {            super.run();            try {                count = 0;                while (true) {                    Log.d(TAG, "run ... count:" + count);                    count++;                    Intent updateIntent = new Intent(ACTION_UPDATE_ALL);                    mContext.sendBroadcast(updateIntent);                    Thread.sleep(UPDATE_TIME);                }            } catch (InterruptedException e) {                e.printStackTrace();            }        }    }}

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