总结下Intent可以打开的系统项

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/**

     * 调用系统浏览器

     *

     * @param   context

     * @param   url

     */

    public static void openWeb(Context   context, String url) {

        //   调用浏览器

        Uri   webViewUri = Uri.parse(url);

        Intent   intent = new Intent(Intent.ACTION_VIEW,   webViewUri);

        context.startActivity(intent);

    }

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/**

     * 调用拨号界面

     * 5.21 1000

     * 1.31 1000

     * @param   context

     * @param   tel

     */

    public static void openCall(Context   context, String tel) {

        Uri   uri = Uri.parse("tel:" + tel);

        Intent   it = new Intent(Intent.ACTION_DIAL,   uri);

        context.startActivity(it);

    }

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/**

     * 直接拨打电话 需要权限 <uses-permission   id="android.permission.CALL_PHONE">

     *

     * @param   context

     * @param   tel

     */

    public static void Call(Context   context, String tel) {

        Uri   uri = Uri.parse("tel:" + tel);

        Intent   it = new Intent(Intent.ACTION_CALL,   uri);

        context.startActivity(it);

    }</uses-permission>

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/**

     * 打开apk

     *

     * @param   context

     * @param   path

     */

    public static void openApk(Context   context, String path) {

        Intent   intent = new Intent(Intent.ACTION_VIEW);

        intent.setDataAndType(Uri.fromFile(new File(path)), "application/vnd.android.package-archive");

        context.startActivity(intent);

    }

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/**

     * 打开录音机

     *

     * @param   context

     */

    public static void openRecord(Context   context) {

        Intent   mi = new Intent(Media.RECORD_SOUND_ACTION);

        context.startActivity(mi);

    }

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/**

     * 打开联系人列表

     *

     * @param   activity

     * @param   requestCode

     */

    public static void openPeople(Activity   activity, int requestCode)   {

        Intent   i = new Intent();

        i.setAction(Intent.ACTION_GET_CONTENT);

        i.setType("vnd.android.cursor.item/phone");

        activity.startActivityForResult(i,   requestCode);

    }

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/**

     * 打开联系人列表

     *

     * @param   activity

     * @param   requestCode

     */

    public static void openPeople2(Activity   activity, int requestCode)   {

        Uri   uri = Uri.parse("content://contacts/people");

        Intent   it = new Intent(Intent.ACTION_PICK,   uri);

        activity.startActivityForResult(it,   requestCode);

    }

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/**

     * 打开系统设置

     *

     * @param   activity

     * @param   action

     */

    public static void openSetting(Activity   activity, String action) {

        /**

         *   com.android.settings.AccessibilitySettings 辅助功能设置

         *   com.android.settings.ActivityPicker 选择活动

         *   com.android.settings.ApnSettings APN设置

         *   com.android.settings.ApplicationSettings 应用程序设置

         *   com.android.settings.BandMode 设置GSM/UMTS波段

         *   com.android.settings.BatteryInfo 电池信息

         *   com.android.settings.DateTimeSettings 日期和时间设置

         *   com.android.settings.DateTimeSettingsSetupWizard 日期和时间设置

         *   com.android.settings.DevelopmentSettings 应用程序设置=》开发设置

         *   com.android.settings.DeviceAdminSettings 设备管理器

         *   com.android.settings.DeviceInfoSettings 关于手机

         *   com.android.settings.Display 显示——设置显示字体大小及预览

         *   com.android.settings.DisplaySettings 显示设置

         *   com.android.settings.DockSettings 底座设置

         *   com.android.settings.IccLockSettings SIM卡锁定设置

         *   com.android.settings.InstalledAppDetails 语言和键盘设置

         *   com.android.settings.LanguageSettings 语言和键盘设置

         *   com.android.settings.LocalePicker 选择手机语言

         *   com.android.settings.LocalePickerInSetupWizard 选择手机语言

         *   com.android.settings.ManageApplications 已下载（安装）软件列表

         *   com.android.settings.MasterClear 恢复出厂设置

         *   com.android.settings.MediaFormat 格式化手机闪存

         *   com.android.settings.PhysicalKeyboardSettings 设置键盘

         *   com.android.settings.PrivacySettings 隐私设置

         *   com.android.settings.ProxySelector 代理设置

         *   com.android.settings.RadioInfo 手机信息

         *   com.android.settings.RunningServices 正在运行的程序（服务）

         *   com.android.settings.SecuritySettings 位置和安全设置

         *   com.android.settings.Settings 系统设置

         *   com.android.settings.SettingsSafetyLegalActivity 安全信息

         *   com.android.settings.SoundSettings 声音设置

         *   com.android.settings.TestingSettings 测试——显示手机信息、电池信息、使用情况统计、Wifi

         *   information、服务信息 com.android.settings.TetherSettings 绑定与便携式热点

         *   com.android.settings.TextToSpeechSettings 文字转语音设置

         *   com.android.settings.UsageStats 使用情况统计

         *   com.android.settings.UserDictionarySettings 用户词典

         *   com.android.settings.VoiceInputOutputSettings 语音输入与输出设置

         *   com.android.settings.WirelessSettings 无线和网络设置

         */

        Intent   intent = new Intent();

        ComponentName   comp = new ComponentName("com.android.settings",   action);

        intent.setComponent(comp);

        intent.setAction("android.intent.action.VIEW");

        activity.startActivityForResult(intent,   0);

    }