安卓工具类之 app 获取版本渠道信息工具类

*/

public static String getAppVersionName(Context pContext) {

String _VersionName = "";

try {

PackageManager _PM = pContext.getPackageManager();

PackageInfo _PInfo = _PM.getPackageInfo(pContext.getPackageName(), 0);

_VersionName = _PInfo.versionName;

if (_VersionName == null || _VersionName.length() <= 0) {

return "";

}

} catch (Exception e) {

e.printStackTrace();

}

return _VersionName;

}

/**

• 获取 APP 版本号

• @param pContext Context

• @return AppVersionCode

*/

public static int getAppVersionCode(Context pContext) {

int _VersionCode = 0;

try {

PackageManager _PM = pContext.getPackageManager();

PackageInfo _PInfo = _PM.getPackageInfo(pContext.getPackageName(), 0);

_VersionCode = _PInfo.versionCode;

} catch (Exception e) {

e.printStackTrace();

}

return _VersionCode;

}

/**

• 获取 APP 的 ChannelId

• @param pContext

• @return

*/

public static synchronized int getAppChannelId(Context pContext){

int __ChannelId = 0;

String _ChannelId = AppConfig.getAppChannelId(pContext);

try {

if (TextUtils.isEmpty(_ChannelId)){

_ChannelId = getChannelFromApk(pContext);

if (TextUtils.isEmpty(_ChannelId)){

_ChannelId = FileAssetsUtil.getStringFromAssert(pContext, "cn");

if (!TextUtils.isEmpty(_ChannelId)){

AppConfig.setAppChannelId(pContext, _ChannelId);

}

}else {

AppConfig.setAppChannelId(pContext, _ChannelId);

}

}

if (!TextUtils.isEmpty(_ChannelId)){

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__ChannelId = Integer.parseInt(_ChannelId);

}else {

__ChannelId = 0;

}

} catch (NumberFormatException e) {

e.printStackTrace();

}

return __ChannelId;

}

/**

• 获取 APP 的 Channel2Id

• @param pContext

• @return

*/

public static synchronized int getAppChannel2Id(Context pContext){

int __Channel2Id = 0;

String _Channel2Id = AppConfig.getAppChannel2Id(pContext);

try {

if (TextUtils.isEmpty(_Channel2Id)){

_Channel2Id = FileAssetsUtil.getStringFromAssert(pContext, "cn2");

if (!TextUtils.isEmpty(_Channel2Id)){

AppConfig.setAppChannel2Id(pContext, _Channel2Id);

}

}

if (!TextUtils.isEmpty(_Channel2Id)){

__Channel2Id = Integer.parseInt(_Channel2Id);

}else {

__Channel2Id = 0;

}

} catch (NumberFormatException e) {

e.printStackTrace();

}

return __Channel2Id;

}

/**

• 从 apk 中获取版本信息

• @param pContext

• @return

*/

private static String getChannelFromApk(Context pContext) {

//从 apk 包中获取

ApplicationInfo _AppInfo = pContext.getApplicationInfo();

String _SourceDir = _AppInfo.sourceDir;

//默认放在 META-INF/里， 所以需要再拼接一下

String _Key = "META-INF/" + CHANNEL_KEY;

String _Ret = "";

ZipFile _ZipFile = null;

try {

_ZipFile = new ZipFile(_SourceDir);

Enumeration<?> _Entries = _ZipFile.entries();

while (_Entries.hasMoreElements()) {

ZipEntry _ZipEntry = ((ZipEntry) _Entries.nextElement());

String _EntryName = _ZipEntry.getName();

if (_EntryName.startsWith(_Key)) {

_Ret = _EntryName;

break;

}

}