app启动其他应用 - 成己成物kukum

Intent intent = new Intent(Intent.ACTION_MAIN); // 必须要设置这两项 不然找不到  
intent.addCategory(Intent.CATEGORY_LAUNCHER);
//设置包名 和类名
ComponentName mComponentName = new ComponentName("com.kukum.mynews", "com.kukum.android.SplashActivity");
intent.setComponent(mComponentName);
startActivity(intent);

　　　　　　　　// 创建一个该包名相同的类别CATEGORY_LAUNCHER的Intent
Intent resolveIntent = new Intent(Intent.ACTION_MAIN, null);
resolveIntent.addCategory(Intent.CATEGORY_LAUNCHER);
resolveIntent.setPackage("com.kukum.mynews");

// 通过getPackageManager()的queryIntentActivities方法遍历
List<ResolveInfo> resolveinfoList = getPackageManager()
.queryIntentActivities(resolveIntent, 0);
// 因为有category 和action 关联 所以启动类只有一个 如果有的话 就是启动类
ResolveInfo resolveinfo = resolveinfoList.iterator().next();
if (resolveinfo != null) {
String className = resolveinfo.activityInfo.name;
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
ComponentName mComponentName = new ComponentName("com.kukum.mynews", className);
intent.setComponent(mComponentName);
startActivity(intent);
}