java，

java，

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settings;

import android.content.ContentResolver;
import android.content.Context;
import android.media.AudioManager;
import android.net.Uri;
import android.preference.PreferenceManager;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceScreen;
import android.preference.Preference;
import android.util.AttributeSet;
import android.content.res.TypedArray;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.Log;
import android.view.View;
import android.widget.ImageView;;
import android.widget.TextView;
import android.telephony.TelephonyManager;
import android.os.SystemProperties;


import android.provider.Settings;


import com.android.settings.R;

/** A slider preference that directly controls an audio stream volume (no dialog) **/
public class DeviceinfoUpdatePreference extends Preference
        {
    private static final String TAG = "DeviceinfoUpdatePreference";
    
    private static final String TEST_SUBSCRIBER_PROP = "test.subscriberid";   
    private Context mContext;
    
    private boolean hasUpdate;    
    private ImageView updateIcon;
         

    public DeviceinfoUpdatePreference(Context context, AttributeSet attrs, int defStyleAttr,
            int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);      
        mContext = context;              
        setLayoutResource(R.layout.deviceinfo_update);
        
    }

    public DeviceinfoUpdatePreference(Context context, AttributeSet attrs, int defStyleAttr) {
        this(context, attrs, defStyleAttr, 0);
    }

    public DeviceinfoUpdatePreference(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public DeviceinfoUpdatePreference(Context context) {
        this(context, null);
    }
    


    @Override
    protected void onBindView(View view) {
        super.onBindView(view); 
        Log.d(TAG,"---onBindView----");              
        hasUpdate = Settings.System.getInt(mContext.getContentResolver(), 
			"has_update_package", 0) ==1?true:false;
	updateIcon = (ImageView)view.findViewById(R.id.update_icon);
	if(hasUpdate){
		updateIcon.setVisibility(View.VISIBLE);					
	}else{
		updateIcon.setVisibility(View.GONE);	
	}
    }    
   public void setUpdateIcon(boolean flag){
        Log.d(TAG,"setUpdateIcon-----"+flag);
        /*if(flag){
		updateIcon.setVisibility(View.VISIBLE);					
	}else{
		updateIcon.setVisibility(View.GONE);	
	}  */
	hasUpdate = flag;
	notifyChanged();
    }

    
}