Android消息提醒

项目中有用到消息提醒功能，所以来记录一下。
效果图1：

效果图2：

效果图3：

>关于消息的三个接口：

1.请求消息列表的接口
2.请求是否有未读数据的接口
3.设置消息已读的接口(就是告诉服务器，哪条数据已读，把消息id传过去就行)

>具体思路：

1.每一个消息对象中需要有一个字段isRead，标记消息是否已读，默认false。
2.刚进入程序时，需要调用是否有未读数据这个接口，根据返回值来控制底部导航栏上红点的显示与否。
3.点击进入消息这个界面时，调用消息列表的接口，将请求到的数据显示出来，显示的时候在适配器的getView中根据消息对象的isRead字段的值来控制条目左边红点的显示。
4.点击某一条消息时，将其对应消息对象的isRead置为true，表示已读，刷新界面，并调用设置消息已读的接口，服务器返回成功后再调用是否有未读数据的接口，也就是实时控制底部导航栏红点的显示。
5.当退出程序再次进入，然后进入消息界面时，由于是从服务器返回的字段isRead来判断每一条消息左边红点的显示，所以不会有什么问题。
备注：之前是在本地做的处理，用了SharedPreferences，这样当再次进入时，状态会有问题。

一部分代码：
处理设置消息已读请求返回的结果：

public void handleSetMsgHasRead(Message msg){
if(null!=msg){
String json = (String) msg.obj;
JSONObject object;
try {
object = new JSONObject(json);
String fromJson = object.getString("message");
if("OK".equals(fromJson)){
//去请求是否有未读消息
LshItaskSEApplication.netService.getMsgNotReadList(state,"hasNoReadMessage",handler);
}else{
Toast.makeText(context, ""+fromJson, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}

处理是否有未读数据返回的结果：

public void handleMsgNotRead(Message msg){
if(null!=msg){
String json = (String) msg.obj;
JSONObject object;
try {
object = new JSONObject(json);
boolean fromJson = object.getBoolean("data");
if(true==fromJson){//没有未读消息
//这时底部导航栏消息上的红点需要消失
MainActivity.fragmentBtm.setTips("", "#00000000", "#FFFFFF", 3);
}else{//有未读消息
//这时底部导航栏消息上的红点是存在的
MainActivity.fragmentBtm.setTips("", "#FF0000", "#FFFFFF", 3);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}

设置红点的代码：

public class FragmentBtmButton extends HorizontalScrollView {    Context context;    int[] selectedDrawble;    int[] notSelectedDrawble;    String[] tipsTexts;    String[] tipsBgColors;    String[] tipsTextColors;    int btWidth, btHeight;    ScrollView x;    TextView[] btArray;    CKNameView[] ckNameViews;    RelativeLayout[] relativeLayouts;    int[] btID;    LinearLayout ll_container;    int defSelect;    public FragmentBtmButton(Context context) {        super(context);    }    public FragmentBtmButton(Context context, AttributeSet attrs) {        super(context, attrs);        setHorizontalScrollBarEnabled(false);    }    public void setData(Context context, int[] selectedDrawble, int[] notSelectedDrawble, int defSelect) {        this.context = context;        this.selectedDrawble = selectedDrawble;        this.notSelectedDrawble = notSelectedDrawble;        this.defSelect = defSelect;        btWidth = (int) getBtnWidth();        btHeight = DensityUtil.dip2px(context, 50);        btID = new int[selectedDrawble.length];        tipsTexts = new String[selectedDrawble.length];        tipsBgColors = new String[selectedDrawble.length];        tipsTextColors = new String[selectedDrawble.length];        for (int i = 0; i < selectedDrawble.length; i++) {            btID[i] = i + 100;            tipsTexts[i] = "";            tipsBgColors[i] = "#00ffffff";            tipsTextColors[i] = "#00ffffff";        }        addViewSub();    }    @Override    protected void onScrollChanged(int l, int t, int oldl, int oldt) {        super.onScrollChanged(l, t, oldl, oldt);        if (l == 0) {            isIndicateShow.isShow(View.INVISIBLE, View.VISIBLE);        } else {            if (oldl == 0 || oldl + getWidth() == computeHorizontalScrollRange()) {                isIndicateShow.isShow(View.VISIBLE, View.VISIBLE);            }            if (l + getWidth() == computeHorizontalScrollRange()) {                isIndicateShow.isShow(View.VISIBLE, View.INVISIBLE);            }        }    }    /**     * 为scrollview添加子view     */    private void addViewSub() {        FrameLayout.LayoutParams frameLayoutParams = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,                btHeight);        ll_container = new LinearLayout(context);        ll_container.setOrientation(LinearLayout.HORIZONTAL);        addView(ll_container, frameLayoutParams);        LinearLayout.LayoutParams linearLayoutParams = new LinearLayout.LayoutParams(btWidth, btHeight);        RelativeLayout.LayoutParams btAddlayoutParams = new RelativeLayout.LayoutParams(                btWidth, btHeight);        RelativeLayout.LayoutParams tipsAddlayoutParams = new RelativeLayout.LayoutParams(                DensityUtil.dip2px(context, 10), DensityUtil.dip2px(context, 10));        tipsAddlayoutParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);        tipsAddlayoutParams.addRule(RelativeLayout.ALIGN_PARENT_TOP);        tipsAddlayoutParams.rightMargin = btWidth/5;        btArray = new TextView[selectedDrawble.length];        ckNameViews = new CKNameView[selectedDrawble.length];        relativeLayouts = new RelativeLayout[selectedDrawble.length];        for (int i = 0; i < selectedDrawble.length; i++) {            btArray[i] = new TextView(context);            btArray[i].setId(btID[i]);            ckNameViews[i] = new CKNameView(context);            ckNameViews[i].setText(tipsTexts[i]);            ckNameViews[i].setPaintColor(tipsTextColors[i], tipsBgColors[i]);            relativeLayouts[i] = new RelativeLayout(context);            if (i == defSelect) {                btArray[i].setBackgroundResource(selectedDrawble[i]);            } else {                btArray[i].setBackgroundResource(notSelectedDrawble[i]);            }            btArray[i].setOnClickListener(new OnButtonClick());            ll_container.addView(relativeLayouts[i], linearLayoutParams);            relativeLayouts[i].addView(btArray[i], btAddlayoutParams);            relativeLayouts[i].addView(ckNameViews[i], tipsAddlayoutParams);        }    };    public void setTips(String[] tipsTexts,String[] tipsBgColors,String[] tipsTextColors) {        this.tipsTexts = tipsTexts;        this.tipsBgColors = tipsBgColors;        this.tipsTextColors = tipsTextColors;        for (int i = 0; i < ckNameViews.length; i++) {            ckNameViews[i].setText(tipsTexts[i]);            ckNameViews[i].setPaintColor(tipsTextColors[i], tipsBgColors[i]);            ckNameViews[i].invalidate();        }    }    /**     * 设置指定位置的tips 文字,颜色,背景色     *      * @param tipsText     * @param position     */    public void setTips(String tipsText, String tipsBgColor,String tipsTextColor,int position) {        tipsTexts[position] = tipsText;        tipsBgColors[position] = tipsBgColor;        tipsTextColors[position] = tipsTextColor;        ckNameViews[position].setText(tipsTexts[position]);        ckNameViews[position].setPaintColor(tipsTextColors[position], tipsBgColors[position]);        ckNameViews[position].invalidate();    }    class OnButtonClick implements OnClickListener {        public void onClick(View v) {            int tempId = v.getId();            for (int i = 0; i < selectedDrawble.length; i++) {                if (tempId == btID[i]) {                    btArray[i].setBackgroundResource(selectedDrawble[i]);                    if (onBtmButtonSelect != null) {                        onBtmButtonSelect.onBtmButtonSelect(i);                    }                } else {                    btArray[i].setBackgroundResource(notSelectedDrawble[i]);                }            }        }    }    /**     * 获取底部单个button的宽度     *      * @return     */    private float getBtnWidth() {        float tempWidth = context.getResources().getDisplayMetrics().widthPixels;        float result = 0;        float size = selectedDrawble.length >= 5 ? 5 : selectedDrawble.length;        result = tempWidth / (size);        return result;    }    public LinearLayout getLayoutContainer() {        return ll_container;    }    public interface OnBtmButtonSelect {        void onBtmButtonSelect(int position);    }    public void setOnBtmButtonSelect(OnBtmButtonSelect onBtmButtonSelect) {        this.onBtmButtonSelect = onBtmButtonSelect;    }    OnBtmButtonSelect onBtmButtonSelect;    public interface IsIndicateShow {        void isShow(int leftState, int rightState);    }    public void setIsIndicateShow(IsIndicateShow isIndicateShow) {        this.isIndicateShow = isIndicateShow;    }    IsIndicateShow isIndicateShow;}