android studio电话拦截

以下是使用Android Studio实现电话拦截的步骤：

1.在AndroidManifest.xml文件中添加权限：

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>
<uses-permission android:name="android.permission.CALL_PHONE"/>

2.创建一个BroadcastReceiver类，用于监听来电事件并挂断电话：

public class PhoneReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        try {
            Class clazz = Class.forName(telephonyManager.getClass().getName());
            Method method = clazz.getDeclaredMethod("getITelephony");
            method.setAccessible(true);
            ITelephony iTelephony = (ITelephony) method.invoke(telephonyManager);
            iTelephony.endCall();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

3.在AndroidManifest.xml文件中注册BroadcastReceiver：

<receiver android:name=".PhoneReceiver">
    <intent-filter>
        <action android:name="android.intent.action.PHONE_STATE" />
    </intent-filter>
</receiver>

4.在MainActivity中动态请求权限：

private static final int REQUEST_CODE = 1;

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

    if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED
            || ContextCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE, Manifest.permission.CALL_PHONE}, REQUEST_CODE);
    }
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (requestCode == REQUEST_CODE) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            Toast.makeText(this, "Permission granted", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(this, "Permission denied", Toast.LENGTH_SHORT).show();
        }
    }
}

5.测试应用程序，拨打电话并检查是否已挂断。