改写控件之《基于MaterialDialog实现的评分Dialog》

来源：互联网发布：淘宝什么时候最便宜编辑：程序博客网时间：2024/09/21 08:15

转载请注明出处：王亟亟的大牛之路

之前写了 5篇自定义Activity相关的文章，按照计划上一篇关于自定义控件的内容，本篇内容是在MaterialDialog之上构建的，所以对内部方法不了解的可以去看下MaterialDialog的实现，

MaterialDialogcompile 'com.afollestad:material-dialogs:0.7.9.1'

先上下效果图：
这里写图片描述

星数未满3星

这里写图片描述

流程分析：
1.我们点击按钮。
2.弹出Dialog。
3.看到Title,Message,以及3个选项。
4.选择选项内容并填充星数。
5.如果星数控件.getRating() <= 3 显示询问Dialog，大于3直接提交
6.查看询问内容，选择稍后提交or发送邮件给管理邮箱，结束

大致的逻辑很清楚那我们来分析下代码

public class FiveStarsDialog  {    private final static String DEFAULT_TITLE = "评价产品分数";    private final static String DEFAULT_TITLE_SUPPORT = "需要支持？";    private final static String DEFAULT_POSITIVE = "提交";    private final static String DEFAULT_NEGATIVE = "稍后再提交";    private final static String DEFAULT_NEVER = "从不";    private final static String SP_NUM_OF_ACCESS = "numOfAccess";    private static final String SP_DISABLED = "disabled";    private final Context context;    private MaterialDialog ratingDialog;    private String packageName;    private String negativeMessage;    private String supportEmail;    private int buttonsColor = R.color.md_material_blue_600;    private View positiveButton;    private View negativeButton;    private View neutralButton;    private TextView contentText;    private RatingBar ratingBar;    private String supportText = "您有什么建议吗，请邮件于我们。";    private String rateText ="你对这个App评多少分呢?";    public FiveStarsDialog(Context context,String supportEmail){        this.context = context;    }    private void build(){        ratingDialog =  new MaterialDialog.Builder(context)                .title(DEFAULT_TITLE)                .customView(R.layout.stars, true)                .positiveText(DEFAULT_POSITIVE)                .negativeText(DEFAULT_NEGATIVE)                .positiveColorRes(buttonsColor)                .negativeColorRes(buttonsColor)                .neutralColorRes(buttonsColor)                .neutralText(DEFAULT_NEVER).build();        initViews();    }    private void initViews() {        ratingBar = (RatingBar) ratingDialog.getCustomView().findViewById(R.id.ratingBar);        positiveButton = ratingDialog.getActionButton(DialogAction.POSITIVE);        negativeButton = ratingDialog.getActionButton(DialogAction.NEGATIVE);        neutralButton = ratingDialog.getActionButton(DialogAction.NEUTRAL);        contentText = (TextView)ratingDialog.getCustomView().findViewById(R.id.text_content);        contentText.setText(rateText);        positiveButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                if(ratingBar.getRating() <= 3){                    initSupportDialog();                }else{                    //openMarket();                    Toast.makeText(context,"Share",Toast.LENGTH_SHORT).show();                }                ratingDialog.hide();                disable();            }        });        negativeButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                ratingDialog.hide();                SharedPreferences shared = context.getSharedPreferences(context.getPackageName(),Context.MODE_PRIVATE);                SharedPreferences.Editor editor = shared.edit();                int numOfAccess = shared.getInt(SP_NUM_OF_ACCESS,0);                editor.putInt(SP_NUM_OF_ACCESS, 0 - numOfAccess*2 );                editor.apply();            }        });        neutralButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                ratingDialog.hide();                disable();            }        });    }    private void disable() {        SharedPreferences shared = context.getSharedPreferences(context.getPackageName(), Context.MODE_PRIVATE);        SharedPreferences.Editor editor = shared.edit();        editor.putBoolean(SP_DISABLED, true);        editor.apply();    }    private void openMarket() {        final String appPackageName = context.getPackageName();        try {            context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + appPackageName)));        } catch (android.content.ActivityNotFoundException anfe) {            context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://play.google.com/store/apps/details?id=" + appPackageName)));        }    }    private void initSupportDialog() {        MaterialDialog supportDialog = new MaterialDialog.Builder(context)                .title(DEFAULT_TITLE_SUPPORT)                .positiveText(DEFAULT_POSITIVE)                .negativeText(DEFAULT_NEGATIVE)                .positiveColorRes(buttonsColor)                .negativeColorRes(buttonsColor)                .content(supportText)                .build();        supportDialog.getActionButton(DialogAction.POSITIVE).setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                final Intent emailIntent = new Intent(Intent.ACTION_SEND);                emailIntent.setType("plain/text");                emailIntent.putExtra(Intent.EXTRA_EMAIL, supportEmail);                emailIntent.putExtra(Intent.EXTRA_SUBJECT, "App Report ("+context.getPackageName()+")");                emailIntent.putExtra(Intent.EXTRA_TEXT, "");                context.startActivity(Intent.createChooser(emailIntent, "Send mail..."));            }        });        ratingDialog.hide();        supportDialog.show();    }    public FiveStarsDialog setPackageName(String packageName) {        this.packageName = packageName;        return this;    }    public FiveStarsDialog setNegativeMessage(String negativeMessage) {        this.negativeMessage = negativeMessage;        return this;    }    public FiveStarsDialog setSupportEmail(String supportEmail) {        this.supportEmail = supportEmail;        return this;    }    public FiveStarsDialog setButtonsColor(int buttonsColor) {        this.buttonsColor = buttonsColor;        return this;    }    public FiveStarsDialog setSupportText(String supportText){        this.supportText = supportText;        return this;    }    public FiveStarsDialog setRateText(String rateText){        this.rateText = rateText;        return this;    }    public void show() {        SharedPreferences shared = context.getSharedPreferences(context.getPackageName(),Context.MODE_PRIVATE);        boolean disabled  = shared.getBoolean(SP_DISABLED,false);        if(!disabled){            build();            ratingDialog.show();        }    }    public void showAfter(int numberOfAccess){        SharedPreferences shared = context.getSharedPreferences(context.getPackageName(),Context.MODE_PRIVATE);        SharedPreferences.Editor editor = shared.edit();        int numOfAccess = shared.getInt(SP_NUM_OF_ACCESS,0);        editor.putInt(SP_NUM_OF_ACCESS, numOfAccess + 1);        editor.apply();        if(numOfAccess + 1 >= numberOfAccess){            show();        }    }}

只有一个类，内部有各种供给用户调用的set方法，如果未设置将只用默认的文字内容。
例子中构造函数并未对邮箱地址进行操作，大家使用的话直接 this.邮箱=邮箱就好了。

三个按钮赋予三种不同的业务逻辑分别是：

neutralButton再不提示

positiveButton提交

negativeButton稍后提示

showAfter（）延迟提示，便于实现不同逻辑

openMarket() 模仿提交到google play的操作

分别做了不同的逻辑实现，都是通过SharedPreferences实现的，因为相应的代码量并不是太多，所以没有用第三方框架直接实现出来。

内容就这些，实现不太复杂通俗易懂

谢谢大家！！

源码地址：http://yunpan.cn/cHcqZV45aaJrq 访问密码 47ff

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