如何知道Android ICS中是否禁用了应用程序

Question

在Android ICS中,我们可以禁用内置应用程序.是否可以知道代码中是否禁用或启用了特定应用程序？

Answer 1

ApplicationInfo ai = getActivity().getPackageManager().getApplicationInfo("your_package",0);

boolean appStatus = ai.enabled;

如果appStatus是false应用程序被禁用:)

Answer 2

Accepted 答案也可能导致异常，即，NameNotFoundException因此您可能必须构建一个流程来静默捕获异常并决定启用状态（它实际上是第三种状态，即未安装）。

因此，最好像这样找到启用和安装状态：

public static final int ENABLED = 0x00;
    public static final int DISABLED = 0x01;
    public static final int NOT_INSTALLED = 0x03;

    /**
     * @param context Context
     * @param packageName The Package name of the concerned App
     * @return State of the Application.
     *
     */
    public static int getAppState(@NonNull Context context, @NonNull String packageName) {
        final PackageManager packageManager = context.getPackageManager();

        // Check if the App is installed or not first
        Intent intent = packageManager.getLaunchIntentForPackage(packageName);
        if (intent == null) {
            return NOT_INSTALLED;
        }
        List<ResolveInfo> list = packageManager.queryIntentActivities(intent, PackageManager.MATCH_DEFAULT_ONLY);
        if(list.isEmpty()){
            // App is not installed
            return NOT_INSTALLED;
        }
        else{
            // Check if the App is enabled/disabled
            int appEnabledSetting = packageManager.getApplicationEnabledSetting(packageName);
            if(appEnabledSetting == COMPONENT_ENABLED_STATE_DISABLED || 
                    appEnabledSetting == COMPONENT_ENABLED_STATE_DISABLED_USER){
                return DISABLED;
            }
            else{
                return ENABLED;
            }
        }
    }