应用首次安装还是覆盖安装

public static boolean isFirstInstall(Context context) {
return getPackageFirstInstallTime(context) == getPackageLastUpdateTime(context);
}

public static long getPackageFirstInstallTime(Context context) {
String name = context.getPackageName();
long time = 0;
try {
time = context.getPackageManager().getPackageInfo(name, 0).firstInstallTime;
} catch (Exception e) {
e.printStackTrace();
}
return time;
}

public static long getPackageLastUpdateTime(Context context) {
String name = context.getPackageName();
long time = 0;
try {
time = context.getPackageManager().getPackageInfo(name, 0).lastUpdateTime;
} catch (Exception e) {
e.printStackTrace();
}
return time;
}

作者：yuweiguo
链接：http://www.jianshu.com/p/fd5737039d96
來源：简书
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