修改android默认浏览器

PackageManager packageManager = context.getPackageManager(); String str1 = android.intent.category.DEFAULT; String str2 = android.intent.category.BROWSABLE; String str3 = android.intent.action.VIEW; //设置默认项的必须参数之一,用户的操作符合

PackageManager packageManager = context.getPackageManager();String str1 = "android.intent.category.DEFAULT";String str2 = "android.intent.category.BROWSABLE";String str3 = "android.intent.action.VIEW";//设置默认项的必须参数之一,用户的操作符合该过滤器时,默认设置起效IntentFilter filter = new IntentFilter(str3);filter.addCategory(str1);filter.addCategory(str2);filter.addDataScheme("http");//设置浏览页面用的ActivityComponentName component = new ComponentName(context.getPackageName(), BrowserActivity.class.getName());Intent intent = new Intent(str3);intent.addCategory(str2);intent.addCategory(str1);Uri uri = Uri.parse("http://");intent.setDataAndType(uri, null);//找出手机当前安装的所有浏览器程序List<ResolveInfo> resolveInfoList = packageManager.queryIntentActivities(intent,PackageManager.GET_INTENT_FILTERS);int size = resolveInfoList.size();ComponentName[] arrayOfComponentName = new ComponentName[size];for (int i = 0; i < size; i++){ActivityInfo activityInfo = resolveInfoList.get(i).activityInfo;String packageName = activityInfo.packageName;String className = activityInfo.name;//清除之前的默认设置packageManager.clearPackagePreferredActivities(packageName);ComponentName componentName = new ComponentName(packageName,className);arrayOfComponentName[i] = componentName;}packageManager.addPreferredActivity(filter,IntentFilter.MATCH_CATEGORY_SCHEME, arrayOfComponentName,component);