实习笔记之个人设置界面

来源：互联网发布：ucpaas java短信发送编辑：程序博客网时间：2024/06/06 03:52

这是实习第一周的几天所做的事情，主要内容包括：

切图
几种基本控件的使用
主要实现功能：修改密码，个人资料（头像选择，修改昵称，性别选择），关于我们

声明：所有代码基于kotlin和databinding。

首先是设置界面的跳转：

override fun onCreateOptionsMenu(menu: Menu): Boolean {        menuInflater.inflate(R.menu.menu_main, menu)        return true    }    override fun onOptionsItemSelected(item: MenuItem): Boolean {        if (item.itemId == R.id.menu_setting) {            SettingActivity.startActivity(this@EtripMainActivity)            return true        } else {            return super.onOptionsItemSelected(item)        }    }

重写上述两个方法，在主页面中增加菜单栏并设置跳转图标和逻辑，跳转到SettingActivity中。
SettingActivity 的界面如下：
设置界面

代码如下：

package com.radella.etrip.ui.settingimport android.content.Contextimport android.content.Intentimport android.databinding.DataBindingUtilimport android.view.Viewimport android.widget.Buttonimport android.widget.LinearLayoutimport android.widget.TextViewimport com.radella.etrip.Rimport com.radella.etrip.base.BaseNormalActivityimport com.radella.etrip.databinding.ActivitySetting1Bindingimport com.radella.etrip.ui.main.EtripMainActivityclass SettingActivity : BaseNormalActivity(),View.OnClickListener {    override fun onClick(v: View?) {//各控件的点击事件，分别进入不同页面中        val text: TextView? = v?.findViewById(R.id.text) as TextView?        when(text?.text)        {            "个人资料" -> {                PersonalDataActivity.startActivity(this@SettingActivity)            }            "修改密码" -> {                ModifyPwdActivity.startActivity(this@SettingActivity)            }            "关于我们" ->            {                AboutUsActivity.startActivity(this@SettingActivity)            }        }    }    lateinit var settingBinding: ActivitySetting1Binding    var strings:Strings?=null    override fun daggerInject() {    }    override fun initialize() {//初始化界面的数据，通过databinding绑定到xml文件，然后注册点击事件        strings=Strings("个人资料","")        settingBinding.personalData=strings        strings=Strings("修改密码","")        settingBinding.changePwd=strings        strings=Strings("关于我们","")        settingBinding.aboutUs=strings        var item1:LinearLayout?= findViewById(R.id.item1) as LinearLayout?        item1?.setOnClickListener(this@SettingActivity)        var item2:LinearLayout?= findViewById(R.id.item2) as LinearLayout?        item2?.setOnClickListener(this@SettingActivity)        var item3:LinearLayout?= findViewById(R.id.item3) as LinearLayout?        item3?.setOnClickListener(this@SettingActivity)        var returnEtripMain:Button= findViewById(R.id.setting_return_EtripMain) as Button        returnEtripMain.setOnClickListener(View.OnClickListener {            EtripMainActivity.startActivity(this@SettingActivity)            finish() })    }    override fun loadViewLayout() {//databinding绑定到xml中        settingBinding = DataBindingUtil.inflate(layoutInflater, R.layout.activity_setting1,binding.llContainer,true)    }    companion object{//在其他activity中调用该方法启动本activity        fun startActivity(context: Context){            val intent = Intent()            intent.setClass(context,SettingActivity::class.java)            context.startActivity(intent)        }    }}

以及SettingActivity 的xml布局R.layout.activity_setting1

<?xml version="1.0" encoding="utf-8"?><layout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:bind="http://schemas.android.com/tools">    <data>        <variable            name="personal_data"            type="com.radella.etrip.ui.setting.Strings"/>        <variable            name="change_pwd"            type="com.radella.etrip.ui.setting.Strings"/>        <variable            name="about_us"            type="com.radella.etrip.ui.setting.Strings"/>    </data>    <LinearLayout        android:orientation="vertical" android:layout_width="match_parent"        android:layout_height="match_parent"        android:background="@color/white"        >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:orientation="vertical"            android:layout_marginStart="20dp">            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="设置"                android:layout_marginTop="102dp"                android:textSize="26sp"                />            <LinearLayout                android:layout_width="match_parent"                android:layout_height="1dp"                android:layout_marginTop="20dp"                android:background="@color/black_alpha_10" />            <LinearLayout                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:orientation="vertical"                android:id="@+id/item1">                <include                    layout="@layout/line_with_text"                    bind:viewModel="@{personal_data}" />            </LinearLayout>            <LinearLayout                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:orientation="vertical"                android:id="@+id/item2">                <include                    layout="@layout/line_with_text"                    bind:viewModel="@{change_pwd}" />            </LinearLayout>            <LinearLayout                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:orientation="vertical"                android:id="@+id/item3">                <include                    layout="@layout/line_with_text"                    bind:viewModel="@{about_us}" />            </LinearLayout>        </LinearLayout>        <Button            android:id="@+id/setting_return_EtripMain"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_marginStart="40dp"            android:layout_marginEnd="40dp"            android:layout_marginTop="16dp"            android:text="退出登录"            android:textSize="16sp"            android:textColor="@color/white"            android:layout_gravity="center_vertical"            android:backgroundTint="@color/colorPrimary"/>    </LinearLayout></layout>

这里有几点要注意：

databinding与include标签的结合，可以将当前xml布局的数据传输到include的布局中
设置Button的背景backgroundTint ，效果好于background ，有圆角

PersonalDataActivity 个人资料界面
这里写图片描述

代码部分：

package com.radella.etrip.ui.settingimport android.Manifestimport android.app.Dialogimport android.content.Contextimport android.content.DialogInterfaceimport android.content.Intentimport android.content.pm.PackageManagerimport android.databinding.DataBindingUtilimport android.graphics.Bitmapimport android.graphics.BitmapFactoryimport android.os.Bundleimport android.os.Environmentimport android.support.v4.app.ActivityCompatimport android.support.v4.content.ContextCompatimport android.support.v7.app.AlertDialogimport android.util.Logimport android.view.Gravityimport android.view.KeyEventimport android.view.Viewimport android.widget.ImageViewimport android.widget.LinearLayoutimport android.widget.PopupWindowimport android.widget.TextViewimport com.radella.etrip.Rimport com.radella.etrip.base.BaseNormalActivityimport com.radella.etrip.databinding.ActivityPersonalDataBindingimport com.sw926.imagefileselector.ErrorResultimport com.sw926.imagefileselector.ImageFileSelectorclass PersonalDataActivity : BaseNormalActivity(),View.OnClickListener {    lateinit var personalDataBinding: ActivityPersonalDataBinding    lateinit var imageSelector: ImageFileSelector    var popupWindow:PopupWindow?=null    override fun onClick(v: View?) {        if (v?.id==R.id.head_icon)//点击头像，弹出popwindow        {            val current_view=layoutInflater.inflate(R.layout.activity_personal_data,null)            val view = layoutInflater.inflate(R.layout.head_icon_choose, null)            val windowManager = windowManager            val width = windowManager.defaultDisplay.width            val heigth = windowManager.defaultDisplay.height            Log.i("width", width.toString() + "")            Log.i("height", heigth.toString() + "")            popupWindow = PopupWindow(view, width.toInt(), heigth.toInt())            popupWindow?.animationStyle=R.style.anim_menu_bottom_bar//设置弹出动画            popupWindow?.isFocusable = true            popupWindow?.isTouchable=true            popupWindow?.isOutsideTouchable = true            view.isFocusable=true            view.isFocusableInTouchMode=true            view.setOnKeyListener(object :View.OnKeyListener{//设置点击返回键的事件，令popwindow消失                override fun onKey(v: View?, keyCode: Int, event: KeyEvent?): Boolean {                    if (keyCode==KeyEvent.KEYCODE_BACK)                    {                        if (popupWindow?.isShowing!!)                        {                            popupWindow?.dismiss()                        }                    }                    return false                }            }            )//            popupWindow?.setBackgroundDrawable(PaintDrawable())            //显示在屏幕中央            popupWindow?.showAtLocation(current_view, Gravity.CENTER, 0, 40)            val close_icon:ImageView= view.findViewById(R.id.close_icon) as ImageView            close_icon.setOnClickListener(View.OnClickListener {popupWindow?.dismiss()})            val take_picture:ImageView= view.findViewById(R.id.take_picture) as ImageView            take_picture.setOnClickListener(View.OnClickListener {                popupWindow?.dismiss()                imageSelector.takePhoto(this@PersonalDataActivity,2) })            val photo_album:ImageView= view.findViewById(R.id.photo_album) as ImageView            photo_album.setOnClickListener(View.OnClickListener {                popupWindow?.dismiss()                imageSelector.selectImage(this@PersonalDataActivity,3) })            return        }        val text: TextView? = v?.findViewById(R.id.text) as TextView?        when(text?.text)        {            "昵称" ->            {                var intent:Intent=Intent(this@PersonalDataActivity,ModifyNicknameActivity::class.java)                intent.putExtra("nickname",personalDataBinding.text2.data)                startActivityForResult(intent,10)            }            "性别" ->{                val choiceonclicklistener=ChoiceOnClickListener()                val sex:String?=personalDataBinding.text3.data                val sexInt=if (sex=="女")1 else 0                val sexDialog:Dialog=AlertDialog.Builder(this@PersonalDataActivity)                        .setTitle("选择性别")                        .setSingleChoiceItems(R.array.sex,sexInt,choiceonclicklistener)                        .setPositiveButton("确定", DialogInterface.OnClickListener { dialog, which ->                                if (choiceonclicklistener.which==0)                                {                                    var strings=Strings("性别","男")                                    personalDataBinding.text3=strings                                }                                else                                {                                    var strings=Strings("性别","女")                                    personalDataBinding.text3=strings                                }                        })                        .create()                sexDialog.show()            }        }    }    override fun loadViewLayout() {        personalDataBinding=DataBindingUtil.inflate(layoutInflater, R.layout.activity_personal_data,binding.llContainer,true)    }    override fun daggerInject() {    }    override fun initialize() {        val str="头像"        personalDataBinding.text1=str        var strings=Strings("昵称","周吉")        personalDataBinding.text2=strings        strings=Strings("性别","女")        personalDataBinding.text3=strings//        strings=Strings("地区","北京")//        personalDataBinding.text4=strings        var item1:ImageView=findViewById(R.id.head_icon) as ImageView        item1.setOnClickListener(this@PersonalDataActivity)        var item2:LinearLayout= findViewById(R.id.personal_data_item2) as LinearLayout        item2.setOnClickListener(this@PersonalDataActivity)        var item3:LinearLayout= findViewById(R.id.personal_data_item3) as LinearLayout        item3.setOnClickListener(this@PersonalDataActivity)        imageSelector = ImageFileSelector(this@PersonalDataActivity)        imageSelector.setOutPutPath(Environment.getExternalStorageDirectory().toString() + "/tencent/QQfile_recv/")        Log.v("FILEPATH1",Environment.getExternalStorageDirectory().toString() + "/tencent/QQfile_recv/")        // 设置输出文件的尺寸        imageSelector.setOutPutImageSize(800, 600)        // 设置保存图片的质量 0到100        imageSelector.setQuality(80)        imageSelector.setCallback(object : ImageFileSelector.Callback {            override fun onSuccess(file: String) {                // 选取图片成功                Log.v("FILEPATH2",file)//                val head_icon_layout=layoutInflater.inflate(R.layout.line_with_image,null)                val head_icon_layout: View? =findViewById(R.id.head_icon)                val head_icon_image:ImageView?= head_icon_layout?.findViewById(R.id.head_icon) as ImageView?                if (head_icon_image==null)                {                    Log.v("HEADICON","NULL")                }                else                {                    val image:Bitmap?= BitmapFactory.decodeFile(file)                    head_icon_image?.setImageBitmap(image)                    head_icon_image.scaleType=ImageView.ScaleType.CENTER_CROP                }            }            override fun onError(errorResult: ErrorResult?) {                when(errorResult){                }            }        })        checkPermissionPic()    }    /**     * 检查读取相册的权限     */    fun checkPermissionPic(){        if( ContextCompat.checkSelfPermission(this,                Manifest.permission.READ_EXTERNAL_STORAGE)                == PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(this,                Manifest.permission.WRITE_EXTERNAL_STORAGE)                == PackageManager.PERMISSION_GRANTED ){        }else {            if (ActivityCompat.shouldShowRequestPermissionRationale(this,                    Manifest.permission.READ_EXTERNAL_STORAGE) && ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)) {                ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE), 1);            } else {                ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE), 1);            }        }    }    //点击保存退到设置界面    fun clickReturnSetting(view: View){        finish()    }    companion object{        fun startActivity(context: Context){            val intent = Intent()            intent.setClass(context,PersonalDataActivity::class.java)            context.startActivity(intent)        }    }    class ChoiceOnClickListener:DialogInterface.OnClickListener{        var which:Int=0        override fun onClick(dialog: DialogInterface?, which: Int) {            this.which=which        }    }    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {        super.onActivityResult(requestCode, resultCode, data)        if (requestCode==10&&resultCode==10)        {            var bundle:Bundle?=data?.getBundleExtra("nickname")            var strings=Strings("昵称", bundle!!["nickname"] as String?)            personalDataBinding.text2=strings        }        imageSelector.onActivityResult(this@PersonalDataActivity,requestCode,resultCode,data)    }        override fun onSaveInstanceState(outState: Bundle?) {        super.onSaveInstanceState(outState)        imageSelector.onSaveInstanceState(outState)    }    override fun onRestoreInstanceState(savedInstanceState: Bundle?) {        super.onRestoreInstanceState(savedInstanceState)        imageSelector.onRestoreInstanceState(savedInstanceState)    }    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray) {        if (requestCode == 1){            if (grantResults.size == 2 && grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED) {                //授权成功            } else {                //授权失败            }        }        else {            super.onRequestPermissionsResult(requestCode, permissions, grantResults)            imageSelector.onRequestPermissionsResult(this@PersonalDataActivity,requestCode, permissions, grantResults)        }    }}

这个个人资料的界面代码是耗时最多的部分，干了三件事：

选择头像
修改昵称
选择性别

分别细说：
1.选择头像。
核心：popwindow、imageSelector的使用、权限申请和检查，popwindow用于在点击头像时弹出半透明的选择方式界面，注意界面本身和界面外部的属性设置即可。
imageSelector的使用：

imageSelector = ImageFileSelector(this@PersonalDataActivity)     imageSelector.setOutPutPath(Environment.getExternalStorageDirectory().toString() + "/tencent/QQfile_recv/")        // 设置输出文件的尺寸        imageSelector.setOutPutImageSize(800, 600)        // 设置保存图片的质量 0到100        imageSelector.setQuality(80)        imageSelector.setCallback(object : ImageFileSelector.Callback {            override fun onSuccess(file: String) {                // 选取图片成功                Log.v("FILEPATH2",file)//                val head_icon_layout=layoutInflater.inflate(R.layout.line_with_image,null)                val head_icon_layout: View? =findViewById(R.id.head_icon)                val head_icon_image:ImageView?= head_icon_layout?.findViewById(R.id.head_icon) as ImageView?                if (head_icon_image==null)                {                    Log.v("HEADICON","NULL")                }                else                {                    val image:Bitmap?= BitmapFactory.decodeFile(file)                    head_icon_image?.setImageBitmap(image)                    head_icon_image.scaleType=ImageView.ScaleType.CENTER_CROP                }            }            override fun onError(errorResult: ErrorResult?) {                when(errorResult){                }            }        })    }

当选取图片成功后会调用onSuccess方法
其次要在onSaveInstanceState、 onRestoreInstanceState、 onRequestPermissionsResult
方法最后分别加上
imageSelector.onSaveInstanceState(outState)、 imageSelector.onRestoreInstanceState(savedInstanceState)、 imageSelector.onRequestPermissionsResult(this@PersonalDataActivity,requestCode, permissions, grantResults)

关于权限方面其实百度就行，代码中也有了
xml文件如下：activity_personal_data

<?xml version="1.0" encoding="utf-8"?><layout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:bind="http://schemas.android.com/tools">    <data>        <variable            name="text1"            type="String"/>        <variable            name="text2"            type="com.radella.etrip.ui.setting.Strings"/>        <variable            name="text3"            type="com.radella.etrip.ui.setting.Strings"/>        <!--<variable-->            <!--name="text4"-->            <!--type="com.radella.etrip.ui.setting.Strings"/>-->    </data>    <LinearLayout        android:orientation="vertical" android:layout_width="match_parent"        android:layout_height="match_parent"        android:background="@color/white"        >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:orientation="vertical"            android:layout_marginStart="20dp">            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:text="个人资料"                android:layout_marginTop="102dp"                android:textSize="26sp"                />            <LinearLayout                android:layout_width="match_parent"                android:layout_height="match_parent"                android:orientation="vertical"                android:layout_marginTop="18dp">                <LinearLayout                    android:layout_width="match_parent"                    android:layout_height="match_parent"                    android:id="@+id/personal_data_item1">                    <include                        layout="@layout/line_with_image"                        bind:text="@{text1}"                        android:id="@+id/head_icon_layout"                        />                </LinearLayout>                <LinearLayout                    android:layout_width="match_parent"                    android:layout_height="match_parent"                    android:id="@+id/personal_data_item2">                    <include                        layout="@layout/line_with_text"                        bind:viewModel="@{text2}"/>                </LinearLayout>                <LinearLayout                    android:layout_width="match_parent"                    android:layout_height="match_parent"                    android:id="@+id/personal_data_item3">                    <include                        layout="@layout/line_with_text"                        bind:viewModel="@{text3}"/>                </LinearLayout>                <!--<include-->                    <!--layout="@layout/line_with_text"-->                    <!--bind:viewModel="@{text4}"/>-->            </LinearLayout>        </LinearLayout>        <Button            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_marginStart="76dp"            android:layout_marginEnd="76dp"            android:layout_marginTop="32dp"            android:text="保存"            android:textColor="@color/white"            android:backgroundTint="@color/colorPrimary"            android:textSize="16sp"            android:layout_gravity="center_vertical"            android:onClick="clickReturnSetting"            />    </LinearLayout></layout>

2.修改昵称ModifyNicknameActivity

这里写图片描述

package com.radella.etrip.ui.settingimport android.content.Contextimport android.content.Intentimport android.databinding.DataBindingUtilimport android.os.Bundleimport android.util.Logimport android.view.Viewimport android.widget.Buttonimport com.radella.etrip.Rimport com.radella.etrip.base.BaseNormalActivityimport com.radella.etrip.dagger.ActivityModuleimport com.radella.etrip.dagger.DaggerAppComponentimport com.radella.etrip.databinding.ActivityModifyNicknameBindingimport com.radella.etrip.viewmodle.setting.ModifyNameViewModelimport javax.inject.Injectclass ModifyNicknameActivity : BaseNormalActivity(),View.OnClickListener {    lateinit var modifyNicknameBinding: ActivityModifyNicknameBinding    @Inject lateinit var viewModel: ModifyNameViewModel    override fun loadViewLayout() {       modifyNicknameBinding=DataBindingUtil.inflate(layoutInflater, R.layout.activity_modify_nickname,binding.llContainer,true)    }    override fun daggerInject() {        DaggerAppComponent                .builder().activityModule(ActivityModule(this@ModifyNicknameActivity))                .build()                .inject(this)    }    override fun initialize() {        modifyNicknameBinding.viewModel = viewModel        oldnickname=intent.getStringExtra("nickname")        modifyNicknameBinding.viewModel.edit_text.set(oldnickname)        //获取原昵称        if (oldnickname?.isNotEmpty()!!)        {            modifyNicknameBinding.viewModel.save_color.set(resources.getColor(R.color.colorPrimary))            modifyNicknameBinding.viewModel.saveEnabled.set(true)            //当编辑框不为空时令保存按钮可点击        }        else        {        //否则不可点击            modifyNicknameBinding.viewModel.save_color.set(resources.getColor(R.color.qupai_gray_0xd4))            modifyNicknameBinding.viewModel.saveEnabled.set(false)        }    }    var oldnickname:String?=null    override fun onClick(v: View?) {        val edit_nickname:String=modifyNicknameBinding.viewModel.edit_text.get()        var bundle:Bundle=Bundle()        bundle.putString("nickname", edit_nickname)        Log.v("edit_nickname",edit_nickname)        intent.putExtra("nickname",bundle)        setResult(10,intent)//        PersonalDataActivity.startActivity(this@ModifyNicknameActivity)        finish()    }    override fun onCreate(savedInstanceState: Bundle?) {        super.onCreate(savedInstanceState)        var saveButton: Button = findViewById(R.id.modify_nickname_save) as Button        saveButton.setOnClickListener(this@ModifyNicknameActivity)//        oldnickname=intent.getStringExtra("nickname")//        var edit_nickname:MaterialEditText= findViewById(R.id.edit_nickname) as MaterialEditText//        edit_nickname.setText(oldnickname)    }    companion object{        fun startActivity(context: Context){            val intent = Intent()            intent.setClass(context,ModifyNicknameActivity::class.java)            context.startActivity(intent)        }    }}

xml文件：activity_modify_nickname

<layout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:app="http://schemas.android.com/apk/res-auto">    <data>        <variable            name="viewModel"            type="com.radella.etrip.viewmodle.setting.ModifyNameViewModel"/>    </data>    <LinearLayout        android:orientation="vertical"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:background="@color/white"        >        <LinearLayout            android:layout_width="match_parent"            android:layout_height="match_parent"            android:orientation="vertical"            android:layout_marginStart="20dp">            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="102dp"                android:text="修改昵称"                android:textSize="26sp"/>            <TextView                style="@style/text_20_black"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="4dp"                android:text="可使用中英文、数字和下划线，字数限制1-10个字"                android:textSize="12sp"/>            <TextView                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_marginTop="68dp"                android:text="输入昵称"                android:textSize="12sp"/>            <com.rengwuxian.materialedittext.MaterialEditText                android:id="@+id/edit_nickname"                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:textSize="18sp"                android:maxLength="10"                android:text="@{viewModel.edit_text.get()}"                app:onTextChangedCommand="@{viewModel.textChangeCommand}"                />            <Button                android:layout_width="match_parent"                android:layout_height="wrap_content"                android:layout_marginTop="48dp"                android:backgroundTint="@{viewModel.save_color.get()}"                android:text="保存"                android:textSize="16sp"                android:textColor="#fff"                android:layout_marginStart="40dp"                android:layout_marginEnd="40dp"                android:layout_gravity="center_horizontal"                android:enabled="@{viewModel.saveEnabled.get()}"                android:id="@+id/modify_nickname_save"/>        </LinearLayout>    </LinearLayout></layout>

1.<com.rengwuxian.materialedittext.MaterialEditText android:id="@+id/edit_nickname" android:layout_width="match_parent" android:layout_height="wrap_content" android:textSize="18sp" android:maxLength="10" android:text="@{viewModel.edit_text.get()}" app:onTextChangedCommand="@{viewModel.textChangeCommand}" /> 设置最长字数用maxlength
2.该页面的viewmodel

package com.radella.etrip.viewmodle.settingimport android.app.Activityimport android.databinding.ObservableBooleanimport android.databinding.ObservableFieldimport android.databinding.ObservableIntimport android.util.Logimport com.kelin.mvvmlight.base.ViewModelimport com.kelin.mvvmlight.bindingadapter.edittext.ViewBindingAdapterimport com.kelin.mvvmlight.command.ReplyCommandimport com.radella.etrip.Rimport rx.functions.Action0import java.util.*import javax.inject.Inject/** * Created by 邓苏桃 on 2017/7/21. */class ModifyNameViewModel @Inject internal constructor():ViewModel{    @Inject lateinit var context: Activity    var saveEnabled= ObservableBoolean()    var edit_text=ObservableField<String>()    var save_color=ObservableInt()    var textChangeCommand=ReplyCommand<ViewBindingAdapter.TextChangeDataWrapper>(){        t ->        Log.v("edit_text1",edit_text.get())        if (t.s.isNotEmpty())        {            saveEnabled.set(true)            save_color.set(context.resources.getColor(R.color.colorPrimary))        }        else        {            saveEnabled.set(false)            save_color.set(context.resources.getColor(R.color.qupai_gray_0xd4))        }        edit_text.set(t.s.toString())        Log.v("edit_text2",edit_text.get())    }}

使用了ReplyCommand，其类型需要查询文档。
set_color应该这样设置：

save_color.set(context.resources.getColor(R.color.colorPrimary))

而不是直接写R.color.colorPrimary

3.选择性别
这里写图片描述
就是一个简单的Dialog创建，实现DialogInterface.OnClickListener 接口以记录点击的位置（which）

其他两个界面比较简单，修改密码调下界面即可，关于我们的图要用ScaleType：centercrop来充满整个页面。

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