android短信发送器案例

需求描述：根据选中的联系人的手机号，发送相应的短信内容（锻炼简单的布局能力和avtivity使用能力）

效果展示

在这里插入图片描述

代码示例

MainActivity

package com.example.www.sendmessage;

import android.Manifest;
import android.content.Intent;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.telephony.SmsManager;
import android.view.View;
import android.widget.EditText;
import android.widget.ImageButton;

public class MainActivity extends AppCompatActivity {

    private EditText mEtPhone;
    private ImageButton mIbUser;
    private EditText mEtMsgContent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        mEtPhone = (EditText) findViewById(R.id.et_phone);
        mIbUser = (ImageButton) findViewById(R.id.ib_user);
        mEtMsgContent = (EditText) findViewById(R.id.et_msgContent);

        requestPermissions(new String[]{Manifest.permission.SEND_SMS}, 200);

    }

    public void click(View view) {
        Intent intent = new Intent(this, UserListActivity.class);

        // startActivity(intent);
        startActivityForResult(intent, 1);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        String phone = data.getStringExtra("phone");
        if(requestCode == 1 && resultCode ==10){
            mEtPhone.setText(phone);
        }
    }

    public void sendSms(View view) {
        String phone = mEtPhone.getText().toString();
        String content = mEtMsgContent.getText().toString();
        SmsManager smsManager = SmsManager.getDefault();
        smsManager.sendTextMessage(phone, null, content, null, null);
    }
}

UserListActivity

package com.example.www.sendmessage;

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;

public class UserListActivity extends AppCompatActivity {

    private ListView mLvUserList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_user_list);

        mLvUserList = (ListView) findViewById(R.id.lv_userList);
        List<User> list = new ArrayList<>();
        for (int i = 0; i < 20; i++) {
            User u = new User("张三" + i, "18999990" + i);
            list.add(u);
        }
        MyAdapter<User> userMyAdapter = new MyAdapter<>(list, getApplicationContext());
        mLvUserList.setAdapter(userMyAdapter);

        mLvUserList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                TextView nameView = (TextView)view.findViewById(R.id.tv_name);
                TextView PhoneView = (TextView) view.findViewById(R.id.tv_phone);
                Intent intent = new Intent();
                intent.putExtra("phone", PhoneView.getText().toString());
                setResult(10, intent);

                finish(); // 关闭activity
            }
        });
    }
}

MyAdapter

package com.example.www.sendmessage;

import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.List;

public class MyAdapter<T> extends BaseAdapter {
    private List<T> list;
    private Context mContext;

    public MyAdapter(List<T> list, Context context) {
        this.list = list;
        this.mContext = context;
    }

    @Override
    public int getCount() {
        return list.size();
    }

    @Override
    public Object getItem(int position) {
        return null;
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        View v;
        if(convertView == null) {
            v = View.inflate(mContext, R.layout.item, null);

        } else {
            v = convertView;
        }
        TextView tvName = (TextView) v.findViewById(R.id.tv_name);
        TextView tvPhone = (TextView) v.findViewById(R.id.tv_phone);
        User u = (User) list.get(position);
        tvName.setText(u.getName());
        tvPhone.setText(u.getPhone());

//        AbsListView.LayoutParams params = new AbsListView.LayoutParams(100,100);
//        v.setLayoutParams(params);

        return v;
    }
}

User

package com.example.www.sendmessage;

public class User {
    private String name;
    private String phone;

    public User() {
    }

    public User(String name, String phone) {
        this.name = name;
        this.phone = phone;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", phone='" + phone + '\'' +
                '}';
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">


    <EditText
        android:id="@+id/et_phone"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:ems="10"
        android:hint="请输入收件人"
        android:inputType="phone"
        app:layout_constraintEnd_toStartOf="@+id/ib_user"
        app:layout_constraintHorizontal_bias="0.093"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <android.support.constraint.Guideline
        android:id="@+id/guideline"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical" />

    <ImageButton
        android:id="@+id/ib_user"
        android:layout_width="52dp"
        android:layout_height="52dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:scaleType="centerCrop"
        app:layout_constraintBottom_toBottomOf="@+id/et_phone"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintStart_toEndOf="@+id/et_phone"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="1.0"
        app:srcCompat="@drawable/user"
        android:onClick="click"/>

    <EditText
        android:id="@+id/et_msgContent"
        android:layout_width="0dp"
        android:layout_height="0dp"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="8dp"
        android:ems="10"
        android:gravity="top"
        android:hint="请输入短息内容"
        android:inputType="textPersonName"
        app:layout_constraintBottom_toTopOf="@+id/button"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="@+id/guideline"
        app:layout_constraintTop_toBottomOf="@+id/et_phone" />

    <Button
        android:id="@+id/button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dp"
        android:layout_marginBottom="8dp"
        android:text="发送"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        android:onClick="sendSms"/>

</android.support.constraint.ConstraintLayout>

activity_user_list.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".UserListActivity">

    <ListView
        android:id="@+id/lv_userList"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginStart="8dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="8dp"
        android:layout_marginBottom="8dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
</android.support.constraint.ConstraintLayout>

item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <LinearLayout
        android:id="@+id/test"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/tv_name"
            android:layout_width="70dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center_vertical"
            android:text="TextView" />

        <android.support.constraint.Guideline
            android:id="@+id/guideline2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:orientation="vertical" />

        <TextView
            android:id="@+id/tv_phone"
            android:layout_width="265dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center_vertical"
            android:text="TextView" />
    </LinearLayout>
</LinearLayout>

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.www.sendmessage">
    <uses-permission android:name="android.permission.SEND_SMS"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".UserListActivity"></activity>
    </application>

</manifest>

android短信发送器案例

效果展示

代码示例

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