通过包名启动一个activity_通过包名启动activity

通过apk包名启动一个activity 完整api 接口：

  private void openApplication(Context context,String packageName) {
PackageInfo pi = null;
try {
   pi = context.getPackageManager().getPackageInfo(packageName, 0);
} catch (NameNotFoundException e) {
   pi = null;
   e.printStackTrace();
}
if (pi == null) {


} else {
   Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
   resolveIntent.setPackage(pi.packageName);