android自定义来电秀UI

简单来电秀功能，效果如图：

底部附上demo?

一、新建一个PhoneCallService服务，在服务中监听来电等状态，且控制UI显示

public class PhoneCallService extends InCallService {

    private final Call.Callback callback = new Call.Callback() {
        @Override
        public void onStateChanged(Call call, int state) {
            super.onStateChanged(call, state);

            switch (state) {
                case Call.STATE_ACTIVE: {

                    break;
                }

                case Call.STATE_DISCONNECTED: {
                    ActivityStack.getInstance().finishActivity(PhoneCallActivity.class);
                    break;
                }

            }
        }
    };

    @Override
    public void onCallAdded(Call call) {
        super.onCallAdded(call);

        call.registerCallback(callback);
        PhoneCallManager.call = call;

        CallType callType = null;

        if (call.getState() == Call.STATE_RINGING) {
            callType = CallType.CALL_IN;
        } else if (call.getState() == Call.STATE_CONNECTING) {
            callType = CallType.CALL_OUT;
        }

        if (callType != null) {
            Call.Details details = call.getDetails();
            String phoneNumber = details.getHandle().getSchemeSpecificPart();
            PhoneCallActivity.actionStart(this, phoneNumber, callType);
        }
    }

    @Override
    public void onCallRemoved(Call call) {
        super.onCallRemoved(call);

        call.unregisterCallback(callback);
        PhoneCallManager.call = null;
    }

    public enum CallType {
        CALL_IN,
        CALL_OUT,
    }

二、在MainActivity中设置应用为默认来电主题，与权限设置

public class MainActivity extends AppCompatActivity {

    @SuppressLint("UseSwitchCompatOrMaterialCode")
    private Switch switchPhoneCall;

    @SuppressLint("UseSwitchCompatOrMaterialCode")
    private Switch switchListenCall;

    private CompoundButton.OnCheckedChangeListener switchCallCheckChangeListener;

    private final ActivityResultLauncher<Intent> dialerRequestLauncher = registerForActivityResult(
            new ActivityResultContracts.StartActivityForResult(), result -> {
                if (result.getResultCode() == Activity.RESULT_OK) {
                    Toast.makeText(MainActivity.this, getString(R.string.app_name) + " 已成为默认电话应用",
                            Toast.LENGTH_SHORT).show();
                }
            });

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

        initView();
    }

    private void initView() {
        switchPhoneCall = findViewById(R.id.switch_default_phone_call);
        switchListenCall = findViewById(R.id.switch_call_listenr);

        switchPhoneCall.setOnClickListener(v -> {
            // 发起将本应用设为默认电话应用的请求，仅支持 Android M 及以上
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                if (switchPhoneCall.isChecked()) {
                    // Android 10 之后需要通过 RoleManager 修改默认电话应用
                    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q) {
                        RoleManager roleManager = (RoleManager) getSystemService(Context.ROLE_SERVICE);
                        Intent intent = roleManager.createRequestRoleIntent(RoleManager.ROLE_DIALER);
                        dialerRequestLauncher.launch(intent);
                    } else {
                        Intent intent = new Intent(TelecomManager.ACTION_CHANGE_DEFAULT_DIALER);
                        intent.putExtra(TelecomManager.EXTRA_CHANGE_DEFAULT_DIALER_PACKAGE_NAME, getPackageName());
                        startActivity(intent);
                    }
                } else {
                    // 取消时跳转到默认设置页面
                    startActivity(new Intent("android.settings.MANAGE_DEFAULT_APPS_SETTINGS"));
                }
            } else {
                Toast.makeText(MainActivity.this, "Android 6.0 以上才支持修改默认电话应用！", Toast.LENGTH_LONG)
                     .show();
                switchPhoneCall.setChecked(false);
            }

        });

        // 检查是否开启了权限
        switchCallCheckChangeListener = (buttonView, isChecked) -> {
            if (isChecked && Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
                    && !Settings.canDrawOverlays(MainActivity.this)) {
                // 请求 悬浮框 权限
                askForDrawOverlay();

                // 未开启时清除选中状态，同时避免回调
                switchListenCall.setOnCheckedChangeListener(null);
                switchListenCall.setChecked(false);
                switchListenCall.setOnCheckedChangeListener(switchCallCheckChangeListener);
                return;
            }

            if (isChecked && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S &&
                    ContextCompat.checkSelfPermission(this,
                            Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(this, "缺少获取电话状态权限", Toast.LENGTH_SHORT).show();
                return;
            }

            Intent callListener = new Intent(MainActivity.this, CallListenerService.class);
            if (isChecked) {
                startService(callListener);
                Toast.makeText(this, "电话监听服务已开启", Toast.LENGTH_SHORT).show();
            } else {
                stopService(callListener);
                Toast.makeText(this, "电话监听服务已关闭", Toast.LENGTH_SHORT).show();
            }
        };
        switchListenCall.setOnCheckedChangeListener(switchCallCheckChangeListener);
    }

    private void askForDrawOverlay() {
        AlertDialog alertDialog = new AlertDialog.Builder(this)
                .setTitle("允许显示悬浮框")
                .setMessage("为了使电话监听服务正常工作，请允许这项权限")
                .setPositiveButton("去设置", (dialog, which) -> {
                    openDrawOverlaySettings();
                    dialog.dismiss();
                })
                .setNegativeButton("稍后再说", (dialog, which) -> dialog.dismiss())
                .create();

        //noinspection ConstantConditions
        alertDialog.getWindow().setFlags(
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE);
        alertDialog.show();
    }

    /**
     * 跳转悬浮窗管理设置界面
     */
    private void openDrawOverlaySettings() {
        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // Android M 以上引导用户去系统设置中打开允许悬浮窗
            // 使用反射是为了用尽可能少的代码保证在大部分机型上都可用
            try {
                Context context = this;
                Class clazz = Settings.class;
                Field field = clazz.getDeclaredField("ACTION_MANAGE_OVERLAY_PERMISSION");
                Intent intent = new Intent(field.get(null).toString());
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                intent.setData(Uri.parse("package:" + context.getPackageName()));
                context.startActivity(intent);
            } catch (Exception e) {
                Toast.makeText(this, "请在悬浮窗管理中打开权限", Toast.LENGTH_LONG).show();
            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();

        switchPhoneCall.setChecked(isDefaultPhoneCallApp());
        switchListenCall.setChecked(isServiceRunning(CallListenerService.class));
    }

    /**
     * Android M 及以上检查是否是系统默认电话应用
     */
    public boolean isDefaultPhoneCallApp() {
        if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            TelecomManager manger = (TelecomManager) getSystemService(TELECOM_SERVICE);
            if (manger != null && manger.getDefaultDialerPackage() != null) {
                return manger.getDefaultDialerPackage().equals(getPackageName());
            }
        }
        return false;
    }

    public boolean isServiceRunning(Class<?> serviceClass) {
        ActivityManager manager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);
        if (manager == null) return false;

        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(
                Integer.MAX_VALUE)) {
            if (serviceClass.getName().equals(service.service.getClassName())) {
                return true;
            }
        }

        return false;
    }

三、增加一个来电展示的自定义UI页面PhoneCallActivity，可根据需求更改

public class PhoneCallActivity extends AppCompatActivity implements View.OnClickListener {

    private TextView tvCallNumberLabel;
    private TextView tvCallNumber;
    private TextView tvPickUp;
    private TextView tvCallingTime;
    private TextView tvHangUp;

    private PhoneCallManager phoneCallManager;
    private PhoneCallService.CallType callType;
    private String phoneNumber;

    private Timer onGoingCallTimer;
    private int callingTime;

    public static void actionStart(Context context, String phoneNumber,
                                   PhoneCallService.CallType callType) {
        Intent intent = new Intent(context, PhoneCallActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.putExtra(Intent.EXTRA_MIME_TYPES, callType);
        intent.putExtra(Intent.EXTRA_PHONE_NUMBER, phoneNumber);
        context.startActivity(intent);
    }

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

        ActivityStack.getInstance().addActivity(this);

        initData();

        initView();
    }

    private void initData() {
        phoneCallManager = new PhoneCallManager(this);
        onGoingCallTimer = new Timer();
        if (getIntent() != null) {
            phoneNumber = getIntent().getStringExtra(Intent.EXTRA_PHONE_NUMBER);
            callType = (PhoneCallService.CallType) getIntent().getSerializableExtra(Intent.EXTRA_MIME_TYPES);
        }
    }

    private void initView() {
        int uiOptions = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION //hide navigationBar
                | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
        getWindow().getDecorView().setSystemUiVisibility(uiOptions);
        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);

        tvCallNumberLabel = findViewById(R.id.tv_call_number_label);
        tvCallNumber = findViewById(R.id.tv_call_number);
        tvPickUp = findViewById(R.id.tv_phone_pick_up);
        tvCallingTime = findViewById(R.id.tv_phone_calling_time);
        tvHangUp = findViewById(R.id.tv_phone_hang_up);

        tvCallNumber.setText(formatPhoneNumber(phoneNumber));
        tvPickUp.setOnClickListener(this);
        tvHangUp.setOnClickListener(this);

        // 打进的电话
        if (callType == PhoneCallService.CallType.CALL_IN) {
            tvCallNumberLabel.setText("来电号码");
            tvPickUp.setVisibility(View.VISIBLE);
        }
        // 打出的电话
        else if (callType == PhoneCallService.CallType.CALL_OUT) {
            tvCallNumberLabel.setText("呼叫号码");
            tvPickUp.setVisibility(View.GONE);
            phoneCallManager.openSpeaker();
        }

        showOnLockScreen();
    }

    public void showOnLockScreen() {
        this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
                        WindowManager.LayoutParams.FLAG_FULLSCREEN |
                        WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
                        WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON,
                WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
                        WindowManager.LayoutParams.FLAG_FULLSCREEN |
                        WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
                        WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
    }

    @Override
    public void onClick(View v) {
        if (v.getId() == R.id.tv_phone_pick_up) {
            phoneCallManager.answer();
            tvPickUp.setVisibility(View.GONE);
            tvCallingTime.setVisibility(View.VISIBLE);
            onGoingCallTimer.schedule(new TimerTask() {
                @Override
                public void run() {
                    runOnUiThread(new Runnable() {
                        @SuppressLint("SetTextI18n")
                        @Override
                        public void run() {
                            callingTime++;
                            tvCallingTime.setText("通话中：" + getCallingTime());
                        }
                    });
                }
            }, 0, 1000);
        } else if (v.getId() == R.id.tv_phone_hang_up) {
            phoneCallManager.disconnect();
            stopTimer();
        }
    }

    private String getCallingTime() {
        int minute = callingTime / 60;
        int second = callingTime % 60;
        return (minute < 10 ? "0" + minute : minute) +
                ":" +
                (second < 10 ? "0" + second : second);
    }

    private void stopTimer() {
        if (onGoingCallTimer != null) {
            onGoingCallTimer.cancel();
        }

        callingTime = 0;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();

        phoneCallManager.destroy();
    }

四、来电页面UI中布局文件activity_phone_call

<?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:orientation="vertical"
    android:background="@mipmap/sf_p1"
    tools:context=".phonecallui.PhoneCallActivity">

    <RelativeLayout
        android:id="@+id/rl_user_info"
        android:layout_width="match_parent"
        android:layout_height="300dp"
       >

        <TextView
            android:id="@+id/tv_call_number_label"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_above="@+id/tv_call_number"
            android:layout_marginBottom="16dp"
            android:gravity="center"
            android:text="来电号码"

            android:textSize="18sp" />


        <TextView
            android:id="@+id/tv_call_number"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:gravity="center"
            android:textAlignment="center"
            android:textColor="@android:color/white"
            android:textSize="28sp"
            android:textStyle="bold"
            tools:text="130-1111-1111" />

    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
   >

        <TextView
            android:id="@+id/tv_phone_calling_time"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_marginTop="24dp"
            android:text="通话中：01:33"
            android:textColor="@android:color/white"
            android:textSize="18sp"
            android:visibility="gone"
            tools:visibility="visible" />

        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true">

            <TextView
                android:id="@+id/tv_phone_hang_up"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:drawablePadding="16dp"
                android:drawableTop="@mipmap/phone_hang_up"
                android:foreground="?android:attr/selectableItemBackground"
                android:gravity="center"
                android:padding="8dp"
                android:text="挂  断"
                android:textColor="@android:color/black"
                tools:visibility="visible" />

            <TextView
                android:id="@+id/tv_phone_pick_up"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="50dp"
                android:layout_toRightOf="@id/tv_phone_hang_up"
                android:drawablePadding="16dp"
                android:drawableTop="@mipmap/phone_pick_up"
                android:foreground="?android:attr/selectableItemBackground"
                android:gravity="center"
                android:padding="8dp"
                android:text="接  听"
                android:textColor="@android:color/black"
                android:visibility="gone"
                tools:visibility="visible" />
        </RelativeLayout>

    </RelativeLayout>
</LinearLayout>

代码为完全贴出，其他代码可下载DEMO查看

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