Android系统SD卡升级

一般在本地进行OTA升级时，将升级包拷贝到SD卡，然后进入recovery模式选择升级包进行升级，但不是很方便，于是做了一个小应用，通过调用RecoverySystem类中的接口来进行升级。实际上最终也是在recovery模式下进行升级，只不过是在应用层对升级包进行签名验证和发送升级命令。

内容比较简单直接上代码。

一、主要类

SdCardUpgradeWarning.java

一个简单的Activity，对用户升级前进行一些警告提示。

SdCardUpgradeIntroduction.java

对升级过程一些注意事项的提示。

SdCardUpgradeProcess.java

这个是最主要的一个类，读取升级包并进行验证，然后调用installPackage进行升级。

二、详细代码

1.AndroidManifest.xml

<pre style="font-family: Consolas; font-size: 9.8pt; background-color: rgb(255, 255, 255);"><pre name="code" class="java"><?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"package="com.windy.sdcardupgrade"android:sharedUserId="android.uid.system"><uses-permission android:name="android.permission.ACCESS_CACHE_FILESYSTEM" /><uses-permission android:name="android.permission.MASTER_CLEAR" /><uses-permission android:name="android.permission.REBOOT" /><uses-permission android:name="android.permission.WAKE_LOCK" /><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /><applicationandroid:allowBackup="true"android:icon="@mipmap/ic_launcher"android:label="@string/app_name"android:supportsRtl="true"android:theme="@style/AppTheme"><activityandroid:name=".SdCardUpgradeWarning"android:label="@string/app_name"><intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.DEFAULT" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter></activity><activity android:name=".SdCardUpgradeIntroduction"></activity><activityandroid:name=".SdCardUpgradeProcess"android:configChanges="keyboardHidden|orientation"android:screenOrientation="portrait"></activity></application></manifest>

注意添加 android:sharedUserId="android.uid.system"，否则一些系统权限无法使用，如重启。

2.SdCardUpgradeWarning.java

public class SdCardUpgradeWarning extends Activity implements View.OnClickListener {private static final String TAG = "SdCardUpgradeWarning";private static String updatePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/update.zip";private Button mCancle;private Button mConfirm;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.sdcardupgrade_warning);mCancle = (Button) findViewById(R.id.cancle);mCancle.setOnClickListener(this);mConfirm = (Button) findViewById(R.id.confirm);mConfirm.setOnClickListener(this);}@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.cancle:finish();break;case R.id.confirm:confirmUpdatePackageExist();break;default:break;}}public void confirmUpdatePackageExist() {File updatePackage = new File(updatePath);if (isFileExist(updatePackage)) {boolean isZipfileExist = updatePackage.exists();if (!isZipfileExist) {Toast toast = Toast.makeText(getApplicationContext(), getString(R.string.update_package_not_found), Toast.LENGTH_LONG);toast.setGravity(0, 0, 100);toast.show();} else {Intent intent = new Intent();intent.setClass(this, SdCardUpgradeIntroduction.class);startActivity(intent);}} else {Toast toast = Toast.makeText(getApplicationContext(), getString(R.string.sdcard_not_mounted), Toast.LENGTH_LONG);toast.setGravity(0, 0, 100);toast.show();}}public boolean isFileExist(File file) {if (file.exists()) {return true;} else {Log.d(TAG, "Update zip file not exist.");return false;}}}

3.SdCardUpgradeIntroduction.java

public class SdCardUpgradeIntroduction extends Activity implements View.OnClickListener {private Button mcancle;private Button mconfirm;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.sdcardupgrade_introduction);mcancle=(Button)findViewById(R.id.cancle);mcancle.setOnClickListener(this);mconfirm=(Button)findViewById(R.id.confirm);mconfirm.setOnClickListener(this);}@Overridepublic void onClick(View v){switch(v.getId()){case R.id.cancle:finish();break;case R.id.confirm:Intent intent = new Intent();intent.setClass(this, SdCardUpgradeProcess.class);startActivity(intent);break;default:break;}}}

4.SdCardUpgradeProcess.java

public class SdCardUpgradeProcess extends Activity implements RecoverySystem.ProgressListener {private static final String TAG = "SdCardUpgradeProcess";private static final int VERIFY_COMPLETE = 70;private static final int INSTALL_COMPLETE  = 100;private static String updatePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/update.zip";private ProgressBar mProcessbar;private TextView mUpdateStep;private TextView mUpdateState;private TextView mNotify;private TextView sdcard_update_introduction_textview_one;private TextView sdcard_update_introduction_textview_two;private ImageView mCompleteImg;@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.sdcardupgrade_processbar);mUpdateStep = (TextView)findViewById(R.id.step_number);mUpdateState = (TextView)findViewById(R.id.processbar_title);mNotify = (TextView)findViewById(R.id.update_notify);mCompleteImg = (ImageView)findViewById(R.id.update_complete);mProcessbar=(ProgressBar)findViewById(R.id.processbar);mProcessbar.setMax(110);mProcessbar.setProgress(0);mProcessbar.setIndeterminate(false);runnable.start();}Handler mHandler = new Handler(){public void handleMessage(Message msg) {mProcessbar.setProgress(msg.arg1);switch(msg.arg1){case VERIFY_COMPLETE:mUpdateStep.setText(getString(R.string.the_next_step_number));mUpdateState.setText(getString(R.string.install_process));mNotify.setText("");break;case INSTALL_COMPLETE:mUpdateState.setText(getString(R.string.install_process_complete));mNotify.setText(getString(R.string.restart));mCompleteImg.setBackgroundResource(R.drawable.update_complete);break;default:break;}}};Thread runnable = new Thread(){@Overridepublic void run() {Log.d(TAG, "Start update .............");File file = new File(updatePath);PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "SdCardUpgrade ProcessBar");try{wl.acquire();//升级保持亮屏状态RecoverySystem.verifyPackage(file, SdCardUpgradeProcess.this, null);Log.d(TAG,"Verify package complete.");RecoverySystem.installPackage(SdCardUpgradeProcess.this, file);}catch(Exception e){Log.e(TAG, e.getMessage(), e);}finally{wl.release();}}};@Overridepublic void onProgress(int progress) {Log.d(TAG,"progress="+progress);Message msg = Message.obtain();msg.arg1 = progress;mHandler.sendMessage(msg);}@Overridepublic void onBackPressed() {// TODO Auto-generated method stubSystem.exit(0);}
}

5.下面是三个布局文件

sdcardupgrade_warning.xml

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"android:padding="5dp"><TextViewandroid:id="@+id/sdCard_upgrade_textview_one"android:layout_width="match_parent"android:layout_height="wrap_content"android:gravity="center"android:text="@string/sdcard_upgrade_warning_title"android:textSize="22dp" /><RelativeLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"><ImageViewandroid:id="@+id/sdcard_update_image_first"android:layout_width="wrap_content"android:layout_height="wrap_content"android:background="@drawable/sdcard_upgrade_warning" /><TextViewandroid:id="@+id/sdCard_upgrade_textview_two"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_toRightOf="@id/sdcard_update_image_first"android:text="@string/sdcard_upgrade_warning_list_first"android:textSize="18dp" /><ImageViewandroid:id="@+id/sdcard_update_image_second"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_below="@id/sdCard_upgrade_textview_two"android:background="@drawable/sdcard_upgrade_warning" /><TextViewandroid:id="@+id/sdCard_upgrade_textview_three"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_below="@id/sdCard_upgrade_textview_two"android:layout_toRightOf="@id/sdcard_update_image_second"android:text="@string/sdcard_upgrade_warning_list_second"android:textSize="18dp" /><ImageViewandroid:id="@+id/sdcard_update_image_third"android:layout_width="wrap_content"android:layout_height="wrap_content"android:layout_below="@id/sdCard_upgrade_textview_three"android:background="@drawable/sdcard_upgrade_warning" /><TextViewandroid:id="@+id/sdCard_upgrade_textview_four"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_below="@id/sdCard_upgrade_textview_three"android:layout_toRightOf="@id/sdcard_update_image_third"android:text="@string/sdcard_upgrade_warning_list_third"android:textSize="18dp" /><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:gravity="bottom"android:orientation="horizontal"><Buttonandroid:id="@+id/cancle"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_weight="1"android:gravity="center"android:text="@string/sdcard_upgrade_cancle" /><Buttonandroid:id="@+id/confirm"android:layout_width="match_parent"android:layout_height="wrap_content"android:layout_toRightOf="@id/cancle"android:layout_weight="1"android:gravity="center"android:text="@string/sdcard_upgrade_confirm" /></LinearLayout></RelativeLayout>
</LinearLayout>

sdcardupgrade_introduction.xml

<?xml version="1.0" encoding="UTF-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="fill_parent"android:layout_height="fill_parent"android:orientation="vertical"android:padding="5dp"><TextViewandroid:id="@+id/sdCard_upgrade_introduction_one"android:layout_width="fill_parent"android:layout_height="wrap_content"android:text="@string/sdcard_upgrade_introduction"android:textSize="18dp" /><LinearLayoutandroid:layout_width="fill_parent"android:layout_height="fill_parent"android:gravity="bottom"android:orientation="horizontal"><Buttonandroid:id="@+id/cancle"android:layout_width="90dp"android:layout_height="wrap_content"android:layout_weight="1"android:text="@string/sdcard_upgrade_cancle" /><Buttonandroid:id="@+id/confirm"android:layout_width="90dp"android:layout_height="wrap_content"android:layout_weight="1"android:text="@string/sdcard_upgrade_confirm" /></LinearLayout>
</LinearLayout>

sdcardupgrade_processbar.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"android:padding="36dp"><TextViewandroid:id="@+id/processbar_step"android:layout_width="fill_parent"android:layout_height="wrap_content"android:gravity="center"android:text="@string/sdcardupgrade_step_one"android:textSize="20dp" /><TextViewandroid:id="@+id/step_number"android:layout_width="fill_parent"android:layout_height="wrap_content"android:gravity="center"android:text="@string/the_step_number"android:textSize="20dp" /><TextViewandroid:id="@+id/processbar_title"android:layout_width="fill_parent"android:layout_height="wrap_content"android:gravity="center"android:text="@string/sdcardupgrade_title_one"android:textSize="35dp" /><ProgressBarandroid:id="@+id/processbar"style="?android:attr/progressBarStyleHorizontal"android:layout_width="240dp"android:layout_height="wrap_content"android:layout_gravity="center"android:padding="10dp"android:visibility="visible" /><LinearLayoutandroid:layout_width="match_parent"android:layout_height="match_parent"android:gravity="bottom"android:orientation="vertical"><ImageViewandroid:id="@+id/update_complete"android:layout_width="45dp"android:layout_height="40dp"android:layout_gravity="center" /><TextViewandroid:id="@+id/update_notify"android:layout_width="fill_parent"android:layout_height="wrap_content"android:gravity="center_vertical"android:padding="3dp"android:text="@string/update_introduction"android:textSize="20dp" /></LinearLayout>
</LinearLayout>

6.字符串资源文件

<resources><string name="app_name">SdCardUpgrade</string><string name="action_settings">Settings</string><!-- Add for sdcard upgrade--><string name="settings_storage_software_upgrade">SoftWare Upgrade</string><string name="settings_storage_sdcard_upgrade">SD card Upgrade</string><string name="sdcard_upgrade_warning_title">Warning</string><string name="sdcard_upgrade_warning_list_first">During the upgrade,do not remove the battery,UIM card,and SD card.</string><string name="sdcard_upgrade_warning_list_second">Make sure that the battery level is sufficent.</string><string name="sdcard_upgrade_warning_list_third">You are recommanded to back up data to SD card before upgrade.</string><string name="sdcard_upgrade_cancle">Cancle</string><string name="sdcard_upgrade_confirm">Confirm</string><string name="sdcard_upgrade_introduction">The upgrade takes about two minutes.Do not perform any operations during the upgrade.The upgrade application will automatically stop in 30s.</string><string name="sdcardupgrade_step_one">Firmware update</string><string name="sdcardupgrade_title_one">Unpacking...</string><string name="update_introduction">The full update will take about 2 minutes.Please do not turn off the device during this period.</string><string name="update_introduction_two">Do not turn off the device.</string><string name="the_step_number">Step 1/2</string><string name="the_next_step_number">Step 2/2</string><string name="install_process">Install...</string><string name="install_process_complete">Update Complete!</string><string name="restart">restart...</string><string name="update_package_not_found">No update package found!</string><string name="sdcard_not_mounted">SD card not mounted!</string>
</resources>

注意：

生成apk后需要使用平台签名文件进行签名，或者在Android.mk文件中配置签名属性并在源码中编译，否则无法运行。

三、最终效果图

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