Question

我学习tizen应用程序，我尝试使用示例应用程序-您好配件。

这是文档。但这非常简单，我不知道如何运行...

https://developer.samsung.com/galaxy-watch/develop/samples/companion/hello-native

该项目分为两部分：tizen应用程序和android服务。但我先使用android服务。

我在android studio中导入（打开）项目并连接我的手机。但是我按“运行”或“调试”按钮，就会发生此错误。

Error running 'app'
Default Activity not found

我看到一个博客，他说“使用构建-生成签名的apk”。这行得通。我通过apk文件安装到我的手机。但我不知道它真的有效。因为我安装了tizen应用并尝试连接，所以tizen-android连接不起作用。...

我认为android服务有问题或tizen应用程序有问题，但我无法在android上进行任何测试。

我想知道服务现在正在运行以及如何在android studio中进行调试。下方是androidManifest.xml和源代码。

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.samsung.android.sdk.accessory.example.helloaccessory.provider"
    android:versionCode="4"
    android:versionName="2.0.2" >

    <uses-permission android:name="android.permission.BLUETOOTH" />
    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
    <uses-permission android:name="com.samsung.accessory.permission.ACCESSORY_FRAMEWORK" />
    <uses-permission android:name="com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY" />
    <uses-permission android:name="com.samsung.WATCH_APP_TYPE.Companion" />
    <uses-permission android:name="com.samsung.wmanager.ENABLE_NOTIFICATION" />

    <uses-sdk
        android:minSdkVersion="15"
        android:targetSdkVersion="21" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name" >

        <service android:name="com.samsung.android.sdk.accessory.example.helloaccessory.provider.ProviderService" />

        <receiver android:name="com.samsung.android.sdk.accessory.RegisterUponInstallReceiver" >
            <intent-filter>
                <action android:name="com.samsung.accessory.action.REGISTER_AGENT" />
            </intent-filter>
        </receiver>
        <receiver android:name="com.samsung.android.sdk.accessory.ServiceConnectionIndicationBroadcastReceiver" >
            <intent-filter>
                <action android:name="com.samsung.accessory.action.SERVICE_CONNECTION_REQUESTED" />
            </intent-filter>
        </receiver>

        <meta-data
            android:name="AccessoryServicesLocation"
            android:value="/res/xml/accessoryservices.xml" />
        <meta-data
            android:name="GearAppType"
            android:value="tpk" />
    </application>

</manifest>

源代码。

package com.samsung.android.sdk.accessory.example.helloaccessory.provider;


import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.GregorianCalendar;

import android.content.Intent;
import android.os.Binder;
import android.os.Handler;
import android.os.IBinder;
import android.widget.Toast;
import android.util.Log;

import com.samsung.android.sdk.SsdkUnsupportedException;
import com.samsung.android.sdk.accessory.*;

public class ProviderService extends SAAgent {
    private static final String TAG = "HelloAccessory(P)";
    private static final Class<ServiceConnection> SASOCKET_CLASS = ServiceConnection.class;
    private final IBinder mBinder = new LocalBinder();
    private ServiceConnection mConnectionHandler = null;
    Handler mHandler = new Handler();

    public ProviderService() {
        super(TAG, SASOCKET_CLASS);
    }

    @Override
    public void onCreate() {
        super.onCreate();
        SA mAccessory = new SA();
        try {
            mAccessory.initialize(this);
        } catch (SsdkUnsupportedException e) {
            // try to handle SsdkUnsupportedException
            if (processUnsupportedException(e) == true) {
                return;
            }
        } catch (Exception e1) {
            e1.printStackTrace();
            /*
             * Your application can not use Samsung Accessory SDK. Your application should work smoothly
             * without using this SDK, or you may want to notify user and close your application gracefully
             * (release resources, stop Service threads, close UI thread, etc.)
             */
            stopSelf();
        }
    }

    @Override
    public IBinder onBind(Intent intent) {
        return mBinder;
    }

    @Override
    protected void onFindPeerAgentsResponse(SAPeerAgent[] peerAgents, int result) {
        Log.d(TAG, "onFindPeerAgentResponse : result =" + result);
    }

    @Override
    protected void onServiceConnectionRequested(SAPeerAgent peerAgent) {
        if (peerAgent != null) {
            Toast.makeText(getBaseContext(), R.string.ConnectionAcceptedMsg, Toast.LENGTH_SHORT).show();
            acceptServiceConnectionRequest(peerAgent);
        }
    }

    @Override
    protected void onServiceConnectionResponse(SAPeerAgent peerAgent, SASocket socket, int result) {
        if (result == SAAgent.CONNECTION_SUCCESS) {
            if (socket != null) {
                mConnectionHandler = (ServiceConnection) socket;
            }
        } else if (result == SAAgent.CONNECTION_ALREADY_EXIST) {
            Log.e(TAG, "onServiceConnectionResponse, CONNECTION_ALREADY_EXIST");
        }
    }

    @Override
    protected void onAuthenticationResponse(SAPeerAgent peerAgent, SAAuthenticationToken authToken, int error) {
        /*
         * The authenticatePeerAgent(peerAgent) API may not be working properly depending on the firmware
         * version of accessory device. Please refer to another sample application for Security.
         */
    }

    @Override
    protected void onError(SAPeerAgent peerAgent, String errorMessage, int errorCode) {
        super.onError(peerAgent, errorMessage, errorCode);
    }

    private boolean processUnsupportedException(SsdkUnsupportedException e) {
        e.printStackTrace();
        int errType = e.getType();
        if (errType == SsdkUnsupportedException.VENDOR_NOT_SUPPORTED
                || errType == SsdkUnsupportedException.DEVICE_NOT_SUPPORTED) {
            /*
             * Your application can not use Samsung Accessory SDK. You application should work smoothly
             * without using this SDK, or you may want to notify user and close your app gracefully (release
             * resources, stop Service threads, close UI thread, etc.)
             */
            stopSelf();
        } else if (errType == SsdkUnsupportedException.LIBRARY_NOT_INSTALLED) {
            Log.e(TAG, "You need to install Samsung Accessory SDK to use this application.");
        } else if (errType == SsdkUnsupportedException.LIBRARY_UPDATE_IS_REQUIRED) {
            Log.e(TAG, "You need to update Samsung Accessory SDK to use this application.");
        } else if (errType == SsdkUnsupportedException.LIBRARY_UPDATE_IS_RECOMMENDED) {
            Log.e(TAG, "We recommend that you update your Samsung Accessory SDK before using this application.");
            return false;
        }
        return true;
    }

    public class LocalBinder extends Binder {
        public ProviderService getService() {
            return ProviderService.this;
        }
    }

    public class ServiceConnection extends SASocket {
        public ServiceConnection() {
            super(ServiceConnection.class.getName());
        }

        @Override
        public void onError(int channelId, String errorMessage, int errorCode) {
        }

        @Override
        public void onReceive(int channelId, byte[] data) {
            if (mConnectionHandler == null) {
                return;
            }
            Calendar calendar = new GregorianCalendar();
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd aa hh:mm:ss.SSS");
            String timeStr = " " + dateFormat.format(calendar.getTime());
            String strToUpdateUI = new String(data);
            final String message = strToUpdateUI.concat(timeStr);
            new Thread(new Runnable() {
                public void run() {
                    try {
                        mConnectionHandler.send(getServiceChannelId(0), message.getBytes());
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }).start();
        }

        @Override
        protected void onServiceConnectionLost(int reason) {
            mConnectionHandler = null;
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(getBaseContext(), R.string.ConnectionTerminateddMsg, Toast.LENGTH_SHORT).show();
                }
            });
        }
    }
}

Answer 1

您的应用项目未声明活动，您需要使用该属性进行活动

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>

示例：

    <activity
        android:name=".MainActivity"
        android:label="@string/app_name"
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

您需要声明启动活动以避免发生

找不到默认活动

我如何在Android Studio中“运行”此应用程序？

1 个答案: