API

// IModemService.aidl
package com.ayst.androidx;

// Declare any non-default types here with import statements

interface IModemService {
    boolean open4gKeepLive();
    boolean close4gKeepLive();
    boolean keepLiveIsOpen();
}

1.在 APP 源碼 aidl/android/os/ 目錄下新建 IModemService.aidl，如下：

// IModemService.aidl
package com.ayst.androidx;

// Declare any non-default types here with import statements

interface IModemService {
    boolean open4gKeepLive();
    boolean close4gKeepLive();
    boolean keepLiveIsOpen();
}

2.實現(xiàn)下面代碼：.

Intent intent = new Intent();
intent.setPackage("com.ayst.androidx");
intent.setAction("com.ayst.androidx.MODEM_SERVICE");
mContext.bindService(intent, mModemServiceConnection, Context.BIND_AUTO_CREATE);

private ServiceConnection mModemServiceConnection = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
        Log.d(TAG, "IModemService, onServiceConnected...");
        mModemService = IModemService.Stub.asInterface(service);
    }

    @Override
    public void onServiceDisconnected(ComponentName name) {
        Log.d(TAG, "IModemService, onServiceDisconnected...");
        mModemService = null;
    }
};

/**
 * 打開、關(guān)閉4G?；罘?wù)
 *
 * @param on
 */
public void toggle4GKeepLive(boolean on) {
    if (null != mModemService) {
        try {
            if (on) {
                mModemService.open4gKeepLive();
            } else {
                mModemService.close4gKeepLive();
            }
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
}

系統(tǒng)日志寫入文件

為了方便產(chǎn)品上線后 debug，我們默認將 logcat 日志和內(nèi)核日志寫入文件保存，debug 時可以隨時導(dǎo)出分析問題。日志文件采用循環(huán)保存，默認最多保存10個日志文件，支持設(shè)置，單個日志文件最大20M。

日志路徑：/sdcard/lastlog/

cnnho:/sdcard/lastlog/android $ ls -l
total 12880
-rw-rw---- 1 root sdcard_rw 1288359 2020-03-02 17:26 2020-03-02_17-23-09.log
-rw-rw---- 1 root sdcard_rw 1301092 2020-03-02 17:31 2020-03-02_17-26-44.log
-rw-rw---- 1 root sdcard_rw 1466984 2020-03-02 17:40 2020-03-02_17-32-23.log
-rw-rw---- 1 root sdcard_rw 1212094 2020-03-02 17:43 2020-03-02_17-41-11.log
-rw-rw---- 1 root sdcard_rw 1328673 2020-03-02 17:49 2020-03-02_17-44-05.log
-rw-rw---- 1 root sdcard_rw 2403373 2020-03-02 18:38 2020-03-02_17-50-00.log
-rw-rw---- 1 root sdcard_rw   79347 2020-03-02 18:41 2020-03-02_18-38-16.log
-rw-rw---- 1 root sdcard_rw 1292712 2020-03-02 18:53 2020-03-02_18-49-41.log
-rw-rw---- 1 root sdcard_rw 1567416 2020-03-02 19:06 2020-03-02_18-53-59.log
-rw-rw---- 1 root sdcard_rw 1227984 2020-03-02 19:09 2020-03-02_19-07-29.log

API

// ILog2fileService.aidl
package com.ayst.androidx;

// Declare any non-default types here with import statements

interface ILog2fileService {
    void openLog2file();
    void closeLog2file();
    boolean isOpen();
    boolean setLogFileNum(int num);
    int getLogFileNum();
}

1.在 APP 源碼 aidl/android/os/ 目錄下新建 ILog2fileService.aidl，如下：

// ILog2fileService.aidl
package com.ayst.androidx;

// Declare any non-default types here with import statements

interface ILog2fileService {
    void openLog2file();
    void closeLog2file();
    boolean isOpen();
    boolean setLogFileNum(int num);
    int getLogFileNum();
}

2.實現(xiàn)下面代碼：

Intent intent = new Intent();
intent.setPackage("com.ayst.androidx");
intent.setAction("com.ayst.androidx.LOG2FILE_SERVICE");
mContext.bindService(intent, mLog2fileServiceConnection, Context.BIND_AUTO_CREATE);

private ServiceConnection mLog2fileServiceConnection = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
        Log.d(TAG, "ILog2fileService, onServiceConnected...");
        mLog2fileService = ILog2fileService.Stub.asInterface(service);
    }

    @Override
    public void onServiceDisconnected(ComponentName name) {
        Log.d(TAG, "ILog2fileService, onServiceDisconnected...");
        mLog2fileService = null;
    }
};

/**
 * 打開、關(guān)閉日志寫入文件
 *
 * @param on true：打開 false：關(guān)閉
 */
public void toggleLog2file(boolean on) {
    if (null != mLog2fileService) {
        try {
            if (on) {
                mLog2fileService.openLog2file();
            } else {
                mLog2fileService.closeLog2file();
            }
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
}

/**
 * 設(shè)置最大保存日志文件數(shù)
 *
 * @param num 最大日志文件數(shù)
 * @return true：成功 false：失敗
 */
private boolean setLogFileNum(int num) {
    if (null != mLog2fileService) {
        try {
            return mLog2fileService.setLogFileNum(num);
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
    return false;
}

/**
 * 獲取最大保存日志文件數(shù)
 *
 * @return 最大日志文件數(shù)
 */
private int getLogFileNum() {
    if (null != mLog2fileService) {
        try {
            return mLog2fileService.getLogFileNum();
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
    return 0;
}

鍵值攔截

一些支持遙控器操作的產(chǎn)品上，默認只允許管理員使用遙控器操作設(shè)備，普通用戶只能操作『上下左右』鍵，當(dāng)操作其它鍵時需要先按『NUM_LOCK』鍵，然后輸入預(yù)設(shè)的密碼（默認密碼：『上上下下左右左右』）才可以解鎖后使用。

API

// IKeyInterceptService.aidl
package com.ayst.androidx;

// Declare any non-default types here with import statements

interface IKeyInterceptService {
    void openKeyIntercept();
    void closeKeyIntercept();
    boolean isOpen();
}

使用
1.在 APP 源碼 aidl/android/os/ 目錄下新建 IKeyInterceptService.aidl，如下：

// IKeyInterceptService.aidl
package com.ayst.androidx;

// Declare any non-default types here with import statements

interface IKeyInterceptService {
    void openKeyIntercept();
    void closeKeyIntercept();
    boolean isOpen();
}

2.實現(xiàn)下面代碼：

Intent intent = new Intent();
intent.setPackage("com.ayst.androidx");
intent.setAction("com.ayst.androidx.KEY_INTERCEPT_SERVICE");
mContext.bindService(intent, mKeyInterceptServiceConnection, Context.BIND_AUTO_CREATE);

private ServiceConnection mKeyInterceptServiceConnection = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
        Log.d(TAG, "IKeyInterceptService, onServiceConnected...");
        mIKeyInterceptService = IKeyInterceptService.Stub.asInterface(service);
    }

    @Override
    public void onServiceDisconnected(ComponentName name) {
        Log.d(TAG, "IKeyInterceptService, onServiceDisconnected...");
        mIKeyInterceptService = null;
    }
};

/**
 * 打開、關(guān)閉鍵值攔截
 *
 * @param on
 */
public void toggleKeyIntercept(boolean on) {
    if (null != mIKeyInterceptService) {
        try {
            if (on) {
                mIKeyInterceptService.openKeyIntercept();
            } else {
                mIKeyInterceptService.closeKeyIntercept();
            }
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }
}

啟用應(yīng)用

一些產(chǎn)品為了方便作業(yè)人員安裝測試設(shè)備，需要臨時停用某些應(yīng)用，有時會忘記恢復(fù)，從而導(dǎo)致后面客戶應(yīng)用無法運行的問題。

該方案在通過屬性『ro.enableapps』配置開機后需要自動啟用的應(yīng)用包名，開機后運行Service重新啟用之前停用的應(yīng)用。

關(guān)鍵實現(xiàn)

使用 PackageManager 提供的方法：

/**
 * Set the enabled setting for an application
 * This setting will override any enabled state which may have been set by the application in
 * its manifest.  It also overrides the enabled state set in the manifest for any of the
 * application's components.  It does not override any enabled state set by
 * {@link #setComponentEnabledSetting} for any of the application's components.
 *
 * @param packageName The package name of the application to enable
 * @param newState The new enabled state for the application.
 * @param flags Optional behavior flags.
 */
public abstract void setApplicationEnabledSetting(String packageName,
        @EnabledState int newState, @EnabledFlags int flags);

public class AppEnableService extends Service {
    private static final String TAG = "AppEnableService";

    private String[] mEnableApps;
    private Thread mEnableThread;

    public AppEnableService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        // TODO: Return the communication channel to the service.
        throw new UnsupportedOperationException("Not yet implemented");
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Log.i(TAG, "onStartCommand...");

        mEnableApps = loadApps();

        if (null != mEnableApps && mEnableApps.length > 0) {
            mEnableThread = new Thread(mEnableRunnable);
            mEnableThread.start();
        } else {
            Log.w(TAG, "onStartCommand, There is no application to be enabled.");
        }

        return Service.START_REDELIVER_INTENT;
    }

    private String[] loadApps() {
        String value = AppUtils.getProperty("ro.enableapps", "");
        if (!TextUtils.isEmpty(value)) {
            return value.split(",");
        }

        return null;
    }

    private Runnable mEnableRunnable = new Runnable() {
        @Override
        public void run() {
            PackageManager pm = getPackageManager();
            for (String pkgName : mEnableApps) {
                if (!TextUtils.isEmpty(pkgName)
                && pkgName.contains(".")) {
                    pm.setApplicationEnabledSetting(
                            pkgName,
                            PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
                            0);

                    Log.i(TAG, pkgName + " Enabled.");
                }
            }
        }
    };
}

屬性配置

通過屬性『ro.enableapps』配置應(yīng)用包名，支持同時配置多個包名，用逗號隔開。例如：文章來源地址http://www.zghlxwxcb.cn/news/detail-489803.html

ro.enableapps=com.ayst.sample1,com.ayst.sample2

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