Android L (API 21) - java.lang.IllegalArgumentException:服务意图必须是显式的 [英] Android L (API 21) - java.lang.IllegalArgumentException: Service Intent must be explicit

问题描述

Android 新版本 - Lollipop" (API 21) 带来了不少变化，但如果您希望将您的应用定位到该 API，它会付出一些代价.

Android new version - "Lollipop" (API 21) brings quite a few changes with it, but it comes with some price if you wish to target your app to that API.

当我们开始让我们的应用程序适应新的 API 时，我们遇到的第一个问题是 IllegalArgumentException: Service Intent must be explicit

When we started adapting our apps to the new API, one of the first problems we've encountered is the IllegalArgumentException: Service Intent must be explicit

如果您遇到了问题，并且您实际上打算以显式方式使用您的 Intent(这意味着在启动服务时您希望恰好命中 1 个服务操作)，那么这里有一个快速解决转隐式的方法 -->显式:

If you have encountered the problem, and you are actually intending to use your intent in explicit way (meaning that when starting the service you are expecting to hit exactly 1 service action), here's a quick fix for turning implicit --> explicit:

public static Intent createExplicitFromImplicitIntent(Context context, Intent implicitIntent) {
        // Retrieve all services that can match the given intent
        PackageManager pm = context.getPackageManager();
        List<ResolveInfo> resolveInfo = pm.queryIntentServices(implicitIntent, 0);

        // Make sure only one match was found
        if (resolveInfo == null || resolveInfo.size() != 1) {
            return null;
        }

        // Get component info and create ComponentName
        ResolveInfo serviceInfo = resolveInfo.get(0);
        String packageName = serviceInfo.serviceInfo.packageName;
        String className = serviceInfo.serviceInfo.name;
        ComponentName component = new ComponentName(packageName, className);

        // Create a new intent. Use the old one for extras and such reuse
        Intent explicitIntent = new Intent(implicitIntent);

        // Set the component to be explicit
        explicitIntent.setComponent(component);

        return explicitIntent;
    }

应该可以.请随时发表评论以获取有关此新问题的更多见解.

That should do it. Please feel free to comment for additional insights on this new issue.

推荐答案

显式启动服务

intent = new Intent(context, Service.class);

或在隐式意图中显式提供包

intent = new Intent("com.example.intent.ACTION");
intent.setPackage("com.example")

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