AutoCompleteTextView,Spinner,消息提示

2022-12-05 14:27:40

package com.example.wang.testapp2;

import android.app.Notification;

import android.app.NotificationManager;

import android.app.PendingIntent;

import android.content.Intent;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.AutoCompleteTextView;

import android.widget.Spinner;

import android.widget.Toast;

public class TestActivity11 extends AppCompatActivity {

    AutoCompleteTextView at_1;

    Spinner sp_1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_test11);

        at_1=(AutoCompleteTextView)findViewById(R.id.at_1);

        sp_1=(Spinner)findViewById(R.id.sp_1);

        //1-准备数据源

        String[] strings={"abc","and","Aea","car","aBcde","aAaa","AAddd"};

        //2-准备适配器

        ArrayAdapter<String> aa=new ArrayAdapter<String>(this,

                R.layout.array_adapter,strings);

        //3-给组件设置适配器

        at_1.setAdapter(aa);

        //下拉列表

       final String[] xl={"高中","专科","本科","硕士","博士"};

        ArrayAdapter<String>  sp=new ArrayAdapter<String>(this,

               R.layout.array_adapter,xl);

        sp_1.setAdapter(sp);

        //监听器

        sp_1.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {

            @Override

            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {

                Toast.makeText(TestActivity11.this, "选中的项目是"+xl[position], Toast.LENGTH_SHORT).show();

            }

            @Override

            public void onNothingSelected(AdapterView<?> parent) {

                Toast.makeText(TestActivity11.this, "什么也没选", Toast.LENGTH_SHORT).show();

            }

        });

    }

    //发送状态栏消息

    public void bt_OnClick(View v)

    {

        //1-得到状态栏消息管理器

        NotificationManager nm=(NotificationManager)getSystemService(NOTIFICATION_SERVICE);

        //准备一个PendingIntent

        //1)创建一个普通的Intent

        Intent intent=new Intent(this,TestActivity1.class);

        //2)生成

       PendingIntent pi= PendingIntent.getActivity(this, 0, intent, 0);

        //2-构建状态栏信息

        Notification nt=new Notification.Builder(this)

                .setContentTitle("天气预报")

                .setContentText("明天晴，气温30度")

                .setSmallIcon(R.drawable.aaa)

                .setTicker("新的天气预报")

                .setDefaults(Notification.DEFAULT_SOUND)

                .setAutoCancel(false)

                .setContentIntent(pi)

                .build();

        //3-由管理器发送消息

        nm.notify(0,nt);

    }

}

java

package com.example.wang.testapp2;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.widget.CheckBox;

import android.widget.CompoundButton;

import android.widget.RadioButton;

import android.widget.RadioGroup;

import android.widget.Switch;

import android.widget.Toast;

import android.widget.ToggleButton;

public class TestActivity1 extends AppCompatActivity {

    RadioGroup rg_1;

    RadioButton nan;

    RadioButton nv;

    CheckBox cb_1;

    CheckBox cb_2;

    ToggleButton tb_1;

    Switch sw_1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_test1);

        rg_1=(RadioGroup)findViewById(R.id.rg_1);

        nan=(RadioButton)findViewById(R.id.nan);

        nv=(RadioButton)findViewById(R.id.nv);

        cb_1=(CheckBox)findViewById(R.id.cb_1);

        cb_2=(CheckBox)findViewById(R.id.cb_2);

        tb_1=(ToggleButton)findViewById(R.id.tb_1);

        sw_1=(Switch)findViewById(R.id.sw_1);

        tb_1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override

            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

                Toast.makeText(TestActivity1.this, "ToggleButton开关状态="+(isChecked?"开":"关"), Toast.LENGTH_SHORT).show();

            }

        });

        sw_1.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

            @Override

            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

                Toast.makeText(TestActivity1.this, "Switch开关状态="+(isChecked?"开":"关"), Toast.LENGTH_SHORT).show();

            }

        });

        //监听器的实例

        CB_OnCheckedChangeListener cb1=new CB_OnCheckedChangeListener();

        //监听器绑定

        cb_1.setOnCheckedChangeListener(cb1);

        cb_2.setOnCheckedChangeListener(cb1);

        rg_1.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {

            @Override

            //int checkedId 被选中的RadioButton的id

            public void onCheckedChanged(RadioGroup group, int checkedId) {

                //提示选中的内容

                //判断谁被选中了

                if (checkedId==nan.getId())

                {

                    Toast.makeText(TestActivity1.this, "选中的是="+nan.getText(), Toast.LENGTH_SHORT).show();

                }

                else if(checkedId==nv.getId())

                {

                    Toast.makeText(TestActivity1.this, "选中的是="+nv.getText(), Toast.LENGTH_SHORT).show();

                }

            }

        });

    }

    //公共的复选按钮的监听器

    class CB_OnCheckedChangeListener implements CompoundButton.OnCheckedChangeListener

    {

        @Override

        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

            CheckBox cb=(CheckBox)buttonView;

            String str =cb.getText().toString();

            if (isChecked)

            {

                Toast.makeText(TestActivity1.this, str+"被选中", Toast.LENGTH_SHORT).show();

            }

            else

            {

                Toast.makeText(TestActivity1.this, str+"被取消选中", Toast.LENGTH_SHORT).show();

            }

        }

    }

}

TestActivity1

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.example.wang.testapp2.TestActivity1"

    android:orientation="vertical">

<LinearLayout

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:orientation="horizontal">

    <ImageButton

        android:layout_width="100dp"

        android:layout_height="wrap_content"

        android:src="@drawable/aaa"/>

    <ImageButton

        android:layout_width="100dp"

        android:layout_height="wrap_content"

        android:src="@drawable/bbb"/>

    <Button

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:background="@drawable/aaa"

        android:text="普通按钮"/>

</LinearLayout>

    <LinearLayout

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:orientation="horizontal">

        <ImageView

            android:layout_width="100dp"

            android:layout_height="100dp"

            android:src="@drawable/ccc"

            android:background="#f00"

            android:alpha="0.7"

            android:scaleType="center"/>

        <ImageView

            android:layout_width="100dp"

            android:layout_height="100dp"

            android:src="@drawable/ccc"

            android:background="#f00"

            android:alpha="0.7"

            android:scaleType="centerCrop"/>

        <ImageView

            android:layout_width="100dp"

            android:layout_height="100dp"

            android:src="@drawable/ccc"

            android:background="#f00"

            android:alpha="0.7"

            android:scaleType="centerInside"/>

    </LinearLayout>

    <ImageView

        android:layout_width="100dp"

        android:layout_height="100dp"

        android:src="@drawable/ccc"

        android:background="#f00"

        android:alpha="0.7"

        android:scaleType="center"/>

<LinearLayout

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:orientation="vertical">

    <RadioGroup

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:id="@+id/rg_1"

        android:orientation="horizontal">

    <RadioButton

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:id="@+id/nan"

        android:text="男"/>

    <RadioButton

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="女"

        android:checked="true"

        android:id="@+id/nv"/>

    </RadioGroup>

<LinearLayout

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:orientation="horizontal">

        <CheckBox

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="范冰冰"

            android:id="@+id/cb_1"

            android:checked="true"/>

        <CheckBox

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="章子怡"

            android:id="@+id/cb_2"

            android:checked="true"/>

</LinearLayout>

</LinearLayout>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content">

        <ToggleButton

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textOn="开"

            android:textOff="关"

            android:id="@+id/tb_1"/>

        <Switch

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textOn="打开"

            android:text="开关"

            android:id="@+id/sw_1"

            android:textOff="关闭"/>

    </LinearLayout>

</LinearLayout>

activity_test1

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.example.wang.testapp2.TestActivity11"

    android:orientation="vertical">

    <AutoCompleteTextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:hint="请输入..."

        android:id="@+id/at_1"

        android:completionThreshold="1"/>

    <LinearLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content">

        <TextView

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="学历："/>

        <Spinner

            android:layout_width="0dp"

            android:layout_height="wrap_content"

            android:id="@+id/sp_1"

            android:layout_weight="1"></Spinner>

    </LinearLayout>

    <Button

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="发送状态栏消息"

        android:onClick="bt_OnClick"/>

</LinearLayout>

activity_test11

<?xml version="1.0" encoding="utf-8"?>

<TextView

xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="wrap_content"

android:textSize="20sp"

android:paddingTop="10dp"

android:paddingBottom="10dp"/>

array_adapter

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