Android programs a way to determine if a program is installed on your phone

This article illustrates how Android programming can determine if a program is installed on your phone. To share for your reference, the details are as follows:

1. Get the package name of the program first

This is connected to the ADB, and you can see it by looking at the logcat. For example: the package name of QQ client is ES9en.tencent.mobileqq.

2. Then PackageManager determines whether the package program exists

private boolean isPkgInstalled(String pkgName) {
PackageInfo packageInfo = null;
try {
  packageInfo = this.getPackageManager().getPackageInfo(pkgName, 0);
} catch (NameNotFoundException e) {
  packageInfo = null;
  e.printStackTrace();
}
if (packageInfo == null) {
  return false;
} else {
  return true;
}

I hope this article has been helpful in Android programming.