打开另一个APP工具类

从一个APP打开另一个APP的工具类，直接上代码：

public class OpenAPPUtil {

    public static void OpenApp(Context context, String packname) {
        PackageManager packageManager = context.getPackageManager();
        if (checkPackInfo(context, packname)) {
            Intent intent = packageManager.getLaunchIntentForPackage(packname);
            context.startActivity(intent);
        } else {
            Toast.makeText(context, "没有安装" + packname, Toast.LENGTH_SHORT).show();
        }
    }

    
    public static void OpenAppActivity(Context context, String packname, String activityPath) {
        if (!checkPackInfo(context, packname)) {
            Toast.makeText(context, "没有安装" + packname, Toast.LENGTH_SHORT).show();
            return;
        }
        Intent intent = new Intent();
        try {
            intent.setClassName(packname, activityPath);
            context.startActivity(intent);
        } catch (Exception e) {
            //TODO  可以在这里提示用户没有安装应用或找不到指定Activity，或者是做其他的操作
            Toast.makeText(context, "未找到指定页面" + activityPath, Toast.LENGTH_SHORT).show();
        }
    }


    
    public static boolean checkPackInfo(Context context, String packname) {
        PackageInfo packageInfo = null;
        try {
            packageInfo = context.getPackageManager().getPackageInfo(packname, 0);
        } catch (PackageManager.NameNotFoundException e) {
            e.printStackTrace();
        }
        return packageInfo != null;
    }

}