← TelephonyManager 监听所有手机来电 Android SmsManager ( 短信管理器 ) →

TelephonyManager 黑名单来电自动挂断

所谓的黑名单就是将一些电话号码添加到一个集合中,当手机接收到这些电话的时候就直接挂断

Android 并没有给我们提供挂断电话的 API，但我们可以通过反射得到相关挂断电话的 API

Method m1 = telephonyManager.getClass().getDeclaredMethod("getITelephony");
if (m1 != null) {
    m1.setAccessible(true);
    Object iTelephony = m1.invoke(telephonyManager);

    if (iTelephony != null) {
        Method m2 = iTelephony.getClass().getDeclaredMethod("silenceRinger");

        if (m2 != null) {
            m2.invoke(iTelephony);
        }

        Method m3 = iTelephony.getClass().getDeclaredMethod("endCall");

        if (m3 != null) {
            m3.invoke(iTelephony);
        }
    }
}

挂断电话用的就是这个

Method m3 = iTelephony.getClass().getDeclaredMethod("endCall");

范例

下面我们就写一个最简单的 demo 演示单个号码的拦截,输入号码,点击屏蔽按钮后,如果此时屏蔽的电话呼入的话; 直接会挂断

创建一个空的 Android 项目 cn.twle.android.BlackReject

修改 activity_main.xml 添加布局

<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:orientation="vertical">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="要屏蔽的电话号码" />

    <EditText
        android:id="@+id/ms_lock_num"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

    <Button
        android:id="@+id/btn_lock" 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="屏蔽"    
    />

</LinearLayout>

修改 AndroidManifest.xml 添加电话相关权限

<!-- 授予该应用控制通话的权限 -->
<uses-permission android:name="android.permission.CALL_PHONE" />    
<!-- 授予该应用读取通话状态的权限 -->
<uses-permission android:name="android.permission.READ_PHONE_STATE" />

创建包 cn.twle.android.common 并在包下创建权限管理帮助类 PermHelper.java

package cn.twle.android.common;

import android.content.Context;
import android.content.pm.PackageManager;
import android.support.v4.content.ContextCompat;

public class PermHelper
{
    private final Context mContext;

    public PermHelper(Context context) {
        mContext = context.getApplicationContext();
    }

    // 判断权限集合
    public boolean lacksPermissions(String... permissions) {
        for (String permission : permissions) {
            if (lacksPermission(permission)) {
                return true;
            }
        }
        return false;
    }

    // 判断是否缺少权限
    private boolean lacksPermission(String permission) {
        return ContextCompat.checkSelfPermission(mContext, permission) == PackageManager.PERMISSION_DENIED;
    }
}

添加授权页

授权页, 首先使用系统默认的授权页, 当用户拒绝时, 指导用户手动设置, 当用户再次操作失败后, 返回继续提示

用户手动退出授权页时, 给使用页发送授权失败的通知

我们可以保存这个授权页并将其在多个应用中复用

创建授权页 PermActivity.java

package cn.twle.android.blackreject;

import android.app.Activity;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;

import cn.twle.android.common.PermHelper;

public class PermActivity extends AppCompatActivity {
    public static final int PERMISSIONS_GRANTED = 0; // 权限授权
    public static final int PERMISSIONS_DENIED = 1; // 权限拒绝

    private static final int PERMISSION_REQUEST_CODE = 0; // 系统权限管理页面的参数
    private static final String EXTRA_PERMISSIONS =
            "cn.twle.android.common.permission.extra_permission"; // 权限参数
    private static final String PACKAGE_URL_SCHEME = "package:"; // 方案

    private PermHelper permHelper; // 权限检测器
    private boolean isRequireCheck; // 是否需要系统权限检测, 防止和系统提示框重叠

    // 启动当前权限页面的公开接口
    public static void startActivityForResult(Activity activity, int requestCode, String... permissions) {
        Intent intent = new Intent(activity, PermActivity.class);
        intent.putExtra(EXTRA_PERMISSIONS, permissions);
        ActivityCompat.startActivityForResult(activity, intent, requestCode, null);
    }

    @Override protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        if (getIntent() == null || !getIntent().hasExtra(EXTRA_PERMISSIONS)) {
            throw new RuntimeException("PermissionsActivity需要使用静态startActivityForResult方法启动!");
        }
        //setContentView(R.layout.activity_perm);

        permHelper = new PermHelper(this);
        isRequireCheck = true;
    }

    @Override protected void onResume() {
        super.onResume();
        if (isRequireCheck) {
            String[] permissions = getPermissions();
            if (permHelper.lacksPermissions(permissions)) {
                requestPermissions(permissions); // 请求权限
            } else {
                allPermissionsGranted(); // 全部权限都已获取
            }
        } else {
            isRequireCheck = true;
        }
    }

    // 返回传递的权限参数
    private String[] getPermissions() {
        return getIntent().getStringArrayExtra(EXTRA_PERMISSIONS);
    }

    // 请求权限兼容低版本
    private void requestPermissions(String... permissions) {
        ActivityCompat.requestPermissions(this, permissions, PERMISSION_REQUEST_CODE);
    }

    // 全部权限均已获取
    private void allPermissionsGranted() {
        setResult(PERMISSIONS_GRANTED);
        finish();
    }

    /**
     * 用户权限处理,
     * 如果全部获取, 则直接过.
     * 如果权限缺失, 则提示Dialog.
     *
     * @param requestCode  请求码
     * @param permissions  权限
     * @param grantResults 结果
     */
    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == PERMISSION_REQUEST_CODE && hasAllPermissionsGranted(grantResults)) {
            isRequireCheck = true;
            allPermissionsGranted();
        } else {
            isRequireCheck = false;
            showMissingPermissionDialog();
        }
    }

    // 含有全部的权限
    private boolean hasAllPermissionsGranted(@NonNull int[] grantResults) {
        for (int grantResult : grantResults) {
            if (grantResult == PackageManager.PERMISSION_DENIED) {
                return false;
            }
        }
        return true;
    }

    // 显示缺失权限提示
    private void showMissingPermissionDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(PermActivity.this);
        builder.setTitle("帮助");
        builder.setMessage("当前应用缺少必要权限。\n请点击\"设置\"-\"权限\" 打开所需权限。\n最后点击两次回退按钮，即可返回");

        // 拒绝, 退出应用
        builder.setNegativeButton("推出", new DialogInterface.OnClickListener() {
            @Override public void onClick(DialogInterface dialog, int which) {
                setResult(PERMISSIONS_DENIED);
                finish();
            }
        });

        builder.setPositiveButton("设置", new DialogInterface.OnClickListener() {
            @Override public void onClick(DialogInterface dialog, int which) {
                startAppSettings();
            }
        });

        builder.setCancelable(false);

        builder.show();
    }

    // 启动应用的设置
    private void startAppSettings() {
        Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
        intent.setData(Uri.parse(PACKAGE_URL_SCHEME + getPackageName()));
        startActivity(intent);
    }
}

修改 MainActivity.java

package cn.twle.android.blackreject;

import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import java.lang.reflect.Method;
import java.util.ArrayList;

import cn.twle.android.common.PermHelper;

public class MainActivity extends AppCompatActivity implements View.OnClickListener {

    final private static int REQUEST_CODE = 29; // 请求码

    private EditText ms_lock_num;
    private Button btn_lock;

    ArrayList<String> blockList = new ArrayList<>();

    static final String[] PERMISSIONS = new String[]{
            Manifest.permission.READ_PHONE_STATE,
            Manifest.permission.CALL_PHONE
    };

    private PermHelper permHelper;

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

        permHelper = new PermHelper(this);

        ms_lock_num = ( EditText ) findViewById(R.id.ms_lock_num);
        btn_lock  = (Button)findViewById(R.id.btn_lock);

        btn_lock.setOnClickListener(this);

        if (permHelper.lacksPermissions(PERMISSIONS)) {
            startPermissionsActivity();
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (permHelper.lacksPermissions(PERMISSIONS)) {
            startPermissionsActivity();
        }
    }

    private void startPermissionsActivity() {
        PermActivity.startActivityForResult(this, REQUEST_CODE, PERMISSIONS);
    }

    public void startListener() {

        final TelephonyManager telephonyManager =
                (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);

        PhoneStateListener listener = new PhoneStateListener() {
            @Override
            public void onCallStateChanged(int state, String incomingNumber) {

                switch (state) {
                    case TelephonyManager.CALL_STATE_RINGING:
                        if (isBlock(incomingNumber)) {
                            try {

                                Method m1 = telephonyManager.getClass().getDeclaredMethod("getITelephony");
                                if (m1 != null) {
                                    m1.setAccessible(true);
                                    Object iTelephony = m1.invoke(telephonyManager);

                                    if (iTelephony != null) {
                                        Method m2 = iTelephony.getClass().getDeclaredMethod("silenceRinger");

                                        if (m2 != null) {
                                            m2.invoke(iTelephony);
                                        }

                                        Log.d("blacktelegram",incomingNumber);

                                        Method m3 = iTelephony.getClass().getDeclaredMethod("endCall");

                                        if (m3 != null) {
                                            m3.invoke(iTelephony);
                                        }
                                    }
                                }

                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                        break;
                    default:
                        break;
                }

                super.onCallStateChanged(state, incomingNumber);
            }
        };

        telephonyManager.listen(listener, PhoneStateListener.LISTEN_CALL_STATE);

    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        // 拒绝时, 关闭页面, 缺少主要权限, 无法运行
        if (requestCode == REQUEST_CODE && resultCode == PermActivity.PERMISSIONS_DENIED) {
            finish();
        }
    }

    @Override
    public void onClick(View view) {

        blockList.add(ms_lock_num.getText().toString());
        Toast.makeText(MainActivity.this,"手机号码已经加入屏蔽列表",Toast.LENGTH_SHORT).show();
        startListener();
    }

    private boolean isBlock(String phone) {
        for (String s1 : blockList) {
            if (s1.equals(phone)) {
                return true;
            }
        }
        return false;
    }
}

参考文档

← TelephonyManager 监听所有手机来电 Android SmsManager ( 短信管理器 ) →

简单教程

TelephonyManager 黑名单来电自动挂断

范例

参考文档

Android 基础教程