修改android預設瀏覽器

packagemanager packagemanager = context.getpackagemanager(); 

string str1 = android.intent.category.default; 
string str2 = android.intent.category.browsable; 
string str3 = android.intent.action.view; //設定預設項的必須引數之一,使用者的操作符合

packagemanager packagemanager = context.getpackagemanager();

string str1 = "android.intent.category.default";
string str2 = "android.intent.category.browsable";
string str3 = "android.intent.action.view";
//設定預設項的必須引數之一,使用者的操作符合該過濾器時,預設設定起效
//設定瀏覽頁面用的activity
//找出手機當前安裝的所有瀏覽器程式
listresolveinfolist = packagemanager
.queryintentactivities(intent,
packagemanager.get_intent_filters);
int size = resolveinfolist.size();
componentname arrayofcomponentname = new componentname[size];
for (int i = 0; i < size; i++)
packagemanager.addpreferredactivity(filter,
intentfilter.match_category_scheme, arrayofcomponentname,
component);

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