一、打电话
首先需要申请电话信息权限，AndroidManifest.xml权限配置如下所示。
1 <!-- 打电话的权限 --> 2 <uses-permission android:name="android.permission.CALL_PHONE"/> 3 <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
Android5.1及以前版本只需要在AndroidManifest.xml中配置完权限后就可以进行打电话，打电话方式如下：
1 Intent intent = new Intent(Intent.ACTION_CALL);//android.intent.action.CALL
2 //2). 携带数据
3 String number = et_main_number.getText().toString();
4 intent.setData(Uri.parse("tel:"+number));
5 //3). startActivity(intent)
6 startActivity(intent);
对于Android5.1以后的版本，除了AndroidManifest.xml权限配置以外，还需要通过用户允许获取权限，代码如下所示：
1 //检测用户是否同意权限
2 private void checkPermission(int id) {
3 //判断所申请的权限是不是已经通过，没通过返回false,通过返回true，则提示出来并拨打电话
4 if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
5 //申请权限回调函数
6 ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE}, PERMISSION_REQUEST_CODE);
7 } else {
8 Toast.makeText(this, "权限已被申请通过咯！", Toast.LENGTH_SHORT).show();
9 call(id);
10 }
11 }
12
13 //权限申请回调方法
14 @Override
15 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
16 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
17 switch (requestCode){
18 case PERMISSION_REQUEST_CODE:
19 //同意申请的权限
20 if (grantResults.length>0&&grantResults[0]== PackageManager.PERMISSION_GRANTED){
21 Toast.makeText(this,"同意通过",Toast.LENGTH_SHORT).show();
22 // call();
23 //拒绝申请的权限
24 }else{
25 Toast.makeText(this,"拒绝通过",Toast.LENGTH_SHORT).show();
26 }
27 break;
28 default:
29 break;
30 }
31
32 }
获取到电话权限后，可以使用以下代码进行双卡选择打电话，id为0表示卡一，id为1表示卡二，适用于Android5.1以后的方法，代码如下：
1 package com.example.phone;
2
3 import android.Manifest;
4 import android.app.Activity;
5 import android.content.Context;
6 import android.content.Intent;
7 import android.content.pm.PackageManager;
8 import android.net.Uri;
9 import android.os.Bundle;
10 import android.support.annotation.NonNull;
11 import android.support.v4.app.ActivityCompat;
12 import android.support.v4.content.ContextCompat;
13 import android.telecom.PhoneAccountHandle;
14 import android.telecom.TelecomManager;
15 import android.view.View;
16 import android.widget.Button;
17 import android.widget.EditText;
18 import android.widget.Toast;
19
20 import java.util.List;
21
22 public class MainActivity extends Activity {
23
24 private static final int PERMISSION_REQUEST_CODE = 1;
25 private EditText et_main_number;
26 private Button btn_main_call1;
27 private Button btn_main_call2;
28 private View.OnClickListener onClickListener = new View.OnClickListener() {
29 @Override
30 public void onClick(View v) {
31 if(v==btn_main_call1){
32 checkPermission(0);
33 }
34 else if(v==btn_main_call2){
35 checkPermission(1);
36 }
37 }
38 };
39
40 @Override
41 protected void onCreate(Bundle savedInstanceState) {
42 super.onCreate(savedInstanceState);
43 setContentView(R.layout.activity_main);
44
45 //初始化视图对象
46 et_main_number = (EditText) findViewById(R.id.et_main_number);
47 btn_main_call1 = (Button) findViewById(R.id.btn_main_call1);
48 btn_main_call2 = (Button) findViewById(R.id.btn_main_call2);
49 //给视图对象设置点击监听
50 btn_main_call1.setOnClickListener(onClickListener);
51 btn_main_call2.setOnClickListener(onClickListener);
52 }
53
54 //检测用户是否同意权限
55 private void checkPermission(int id) {
56 //判断所申请的权限是不是已经通过，没通过返回false,通过返回true，则提示出来并拨打电话
57 if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
58 //申请权限回调函数
59 ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE}, PERMISSION_REQUEST_CODE);
60 } else {
61 Toast.makeText(this, "权限已被申请通过咯！", Toast.LENGTH_SHORT).show();
62 call(id);
63 }
64 }
65
66 private void call(int id) {
67 Intent intent = new Intent(Intent.ACTION_CALL).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);//android.intent.action.CALL
68 //2). 携带数据
69 String number = et_main_number.getText().toString();
70 intent.setData(Uri.parse("tel:" + number));
71
72 TelecomManager telecomManager = (TelecomManager) getSystemService(Context.TELECOM_SERVICE);
73 if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
74 // TODO: Consider calling
75 // ActivityCompat#requestPermissions
76 // here to request the missing permissions, and then overriding
77 // public void onRequestPermissionsResult(int requestCode, String[] permissions,
78 // int[] grantResults)
79 // to handle the case where the user grants the permission. See the documentation
80 // for ActivityCompat#requestPermissions for more details.
81 return;
82 }
83 List<PhoneAccountHandle> phoneAccountHandleList = telecomManager.getCallCapablePhoneAccounts();
84 intent.putExtra(TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE,phoneAccountHandleList.get(id));
85 //3). startActivity(intent)
86 startActivity(intent);
87 }
88 //权限申请回调方法
89 @Override
90 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
91 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
92 switch (requestCode){
93 case PERMISSION_REQUEST_CODE:
94 //同意申请的权限
95 if (grantResults.length>0&&grantResults[0]== PackageManager.PERMISSION_GRANTED){
96 Toast.makeText(this,"同意通过",Toast.LENGTH_SHORT).show();
97 // call();
98 //拒绝申请的权限
99 }else{
100 Toast.makeText(this,"拒绝通过",Toast.LENGTH_SHORT).show();
101 }
102 break;
103 default:
104 break;
105 }
106
107 }
108 }
activity_main.xml代码如下：
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:app="http://schemas.android.com/apk/res-auto" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 android:orientation="vertical" 8 tools:context=".MainActivity"> 9 10 <LinearLayout 11 android:layout_width="match_parent" 12 android:layout_height="wrap_content"> 13 <TextView 14 android:layout_width="wrap_content" 15 android:layout_height="wrap_content" 16 android:text="电话号码: " /> 17 <EditText 18 android:id="@+id/et_main_number" 19 android:layout_width="200dp" 20 android:layout_height="wrap_content" 21 android:hint="请输入号码"> 22 </EditText> 23 </LinearLayout> 24 25 <LinearLayout 26 android:layout_width="match_parent" 27 android:layout_height="wrap_content"> 28 <Button 29 android:id="@+id/btn_main_call1" 30 android:layout_width="wrap_content" 31 android:layout_height="wrap_content" 32 android:text="卡1" /> 33 <Button 34 android:id="@+id/btn_main_call2" 35 android:layout_width="wrap_content" 36 android:layout_height="wrap_content" 37 android:text="卡2" /> 38 </LinearLayout> 39 </LinearLayout>
完成以上操作，即可实现双卡选择打电话。
二、发短信
首先需要申请电话信息权限，AndroidManifest.xml权限配置如下所示。
1 <!-- 发短信的权限 --> 2 <uses-permission android:name="android.permission.SEND_SMS"/>
除了AndroidManifest.xml权限配置以外，还需要通过用户允许获取权限，代码如下所示：
1 //检测用户是否同意权限
2 private void checkPermission(int id) {
3 //判断所申请的权限是不是已经通过，没通过返回false,通过返回true，则提示出来并发送短信
4 if (ContextCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS) != PackageManager.PERMISSION_GRANTED) {
5 //申请权限回调函数
6 ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.SEND_SMS}, PERMISSION_REQUEST_CODE);
7 } else {
8 Toast.makeText(this, "权限已被申请通过咯！", Toast.LENGTH_SHORT).show();
9 message(id);
10 }
11 }
12
13 //权限申请回调方法
14 @Override
15 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
16 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
17 switch (requestCode){
18 case PERMISSION_REQUEST_CODE:
19 //同意申请的权限
20 if (grantResults.length>0&&grantResults[0]== PackageManager.PERMISSION_GRANTED){
21 Toast.makeText(this,"同意通过",Toast.LENGTH_SHORT).show();
22 //拒绝申请的权限
23 }else{
24 Toast.makeText(this,"拒绝通过",Toast.LENGTH_SHORT).show();
25 }
26 break;
27 default:
28 break;
29 }
30
31 }
获取到短信权限后，可以使用以下代码进行双卡选择打电话，id为0表示卡一，id为1表示卡二，代码如下：
1 package com.example.message;
2
3 import android.Manifest;
4 import android.app.Activity;
5 import android.app.PendingIntent;
6 import android.content.Context;
7 import android.content.Intent;
8 import android.content.pm.PackageManager;
9 import android.os.Bundle;
10 import android.support.annotation.NonNull;
11 import android.support.v4.app.ActivityCompat;
12 import android.support.v4.content.ContextCompat;
13 import android.telephony.SmsManager;
14 import android.telephony.SubscriptionManager;
15 import android.view.View;
16 import android.widget.Button;
17 import android.widget.EditText;
18 import android.widget.Toast;
19
20 import java.lang.reflect.InvocationTargetException;
21 import java.lang.reflect.Method;
22
23 public class MainActivity extends Activity{
24
25 private static final int PERMISSION_REQUEST_CODE = 1;
26 private EditText et_main_number;
27 private EditText et_main_sms;
28 private Button btn_main_send;
29
30 private View.OnClickListener onClickListener = new View.OnClickListener() {
31 @Override
32 public void onClick(View v) {
33 if(v==btn_main_send) {
34 //id=0为卡一，id=1为卡二
35 checkPermission(0);
36 }
37 }
38 };
39 @Override
40 protected void onCreate(Bundle savedInstanceState) {
41 super.onCreate(savedInstanceState);
42 setContentView(R.layout.activity_main);
43
44 //初始化视图对象
45 et_main_number = (EditText) findViewById(R.id.et_main_number);
46 et_main_sms = findViewById(R.id.et_main_sms);
47 btn_main_send = (Button) findViewById(R.id.btn_main_send);
48 //给视图对象设置点击监听
49 btn_main_send.setOnClickListener(onClickListener);
50 }
51
52 //检测用户是否同意权限
53 private void checkPermission(int id) {
54 //判断所申请的权限是不是已经通过，没通过返回false,通过返回true，则提示出来并拨打电话
55 if (ContextCompat.checkSelfPermission(this, Manifest.permission.SEND_SMS) != PackageManager.PERMISSION_GRANTED) {
56 //申请权限回调函数
57 ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.SEND_SMS}, PERMISSION_REQUEST_CODE);
58 } else {
59 Toast.makeText(this, "权限已被申请通过咯！", Toast.LENGTH_SHORT).show();
60 message(id);
61 }
62 }
63 private void message(int id) {
64 SubscriptionManager smanager = (SubscriptionManager) getSystemService(TELEPHONY_SUBSCRIPTION_SERVICE);
65 Class sclazz = smanager.getClass();
66 Method getSubId = null;
67 try {
68 getSubId = sclazz.getDeclaredMethod("getSubId",int.class);
69 }catch (NoSuchMethodException e){
70 e.printStackTrace();
71 }
72 int[] ints = new int[1];
73 try {
74 ints = (int[])getSubId.invoke(smanager,id);
75 }catch (IllegalAccessException e){
76 e.printStackTrace();
77 }catch (InvocationTargetException e){
78 e.printStackTrace();
79 }
80 SmsManager smsManager = SmsManager.getSmsManagerForSubscriptionId(ints[0]);
81 PendingIntent sentIntent = PendingIntent.getBroadcast(this,0, new Intent(Context.TELEPHONY_SUBSCRIPTION_SERVICE),PendingIntent.FLAG_ONE_SHOT);
82 String number = et_main_number.getText().toString();
83 String sms = et_main_sms.getText().toString();
84 smsManager.sendTextMessage(number,null,sms,sentIntent,null);
85 }
86 //权限申请回调方法
87 @Override
88 public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
89 super.onRequestPermissionsResult(requestCode, permissions, grantResults);
90 switch (requestCode){
91 case PERMISSION_REQUEST_CODE:
92 //同意申请的权限
93 if (grantResults.length>0&&grantResults[0]== PackageManager.PERMISSION_GRANTED){
94 Toast.makeText(this,"同意通过",Toast.LENGTH_SHORT).show();
95 //拒绝申请的权限
96 }else{
97 Toast.makeText(this,"拒绝通过",Toast.LENGTH_SHORT).show();
98 }
99 break;
100 default:
101 break;
102 }
103
104 }
105 }
activity_main.xml代码如下：
1 <?xml version="1.0" encoding="utf-8"?> 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 xmlns:app="http://schemas.android.com/apk/res-auto" 4 xmlns:tools="http://schemas.android.com/tools" 5 android:layout_width="match_parent" 6 android:layout_height="match_parent" 7 android:orientation="vertical" 8 tools:context=".MainActivity"> 9 10 <LinearLayout 11 android:layout_width="match_parent" 12 android:layout_height="wrap_content" > 13 <TextView 14 android:layout_width="wrap_content" 15 android:layout_height="wrap_content" 16 android:text="电话号码: " /> 17 <EditText 18 android:id="@+id/et_main_number" 19 android:layout_width="fill_parent" 20 android:layout_height="wrap_content" 21 android:hint="请输入号码"> 22 </EditText> 23 </LinearLayout> 24 25 <LinearLayout 26 android:layout_width="match_parent" 27 android:layout_height="wrap_content" > 28 <TextView 29 android:layout_width="wrap_content" 30 android:layout_height="wrap_content" 31 android:text="短信内容: " /> 32 <EditText 33 android:id="@+id/et_main_sms" 34 android:layout_width="fill_parent" 35 android:layout_height="wrap_content" 36 android:hint="请输入短信"> 37 </EditText> 38 </LinearLayout> 39 <LinearLayout 40 android:layout_width="match_parent" 41 android:layout_height="wrap_content" > 42 <Button 43 android:id="@+id/btn_main_send" 44 android:layout_width="wrap_content" 45 android:layout_height="wrap_content" 46 android:text="发短信" /> 47 </LinearLayout> 48 49 </LinearLayout>
完成以上操作后，即可实现双卡选择发送短信。