（三十三）分享应用/运行应用/卸载应用

/**
* 分享APP
* @param packageName:要分享的应用程序包名

*/

private void sharedApp(String packageName) {
        Intent shareIntent = new Intent();
        shareIntent.setAction(Intent.ACTION_SEND);
        shareIntent.setType("text/plain");
        // 需要指定意图的数据类型
        shareIntent.putExtra(Intent.EXTRA_SUBJECT, "分享");
        shareIntent.putExtra(Intent.EXTRA_TEXT,
                "推荐你使用一个程序" + packageName);
        shareIntent = Intent.createChooser(shareIntent, "分享");
        startActivity(shareIntent);
    }

/**
 * 运行应用程序
 */
    private void runApp() {
        try {
            PackageInfo info = getPackageManager().getPackageInfo(
                    packname,
                    PackageManager.GET_UNINSTALLED_PACKAGES
                            | PackageManager.GET_ACTIVITIES);
            ActivityInfo[] activityinfos = info.activities;
            if (activityinfos.length > 0) {
                ActivityInfo startActivity = activityinfos[0];
                Intent intent = new Intent();
                intent.setClassName(packname, startActivity.name);
                Log.i("fuyn", "Liuliangbao:"+packname);
                startActivity(intent);
            } else {
                Toast.makeText(this, "当前应用程序无法启动", 0).show();
            }
        } catch (Exception e) {
            Toast.makeText(this, "应用程序无法启动", 0).show();
            e.printStackTrace();
        }
    }

    /**
     * 卸载应用
     * @param packname 应用程序包名
     */
    private void uninstallApp(String packname) {
        // 需求不能卸载系统的应用程序
        if (item.isSystemApp()) {
            Toast.makeText(this, "系统应用不能被删除", 0).show();
        } else {
            Log.i(TAG, "卸载" + packname);
            String uristr = "package:" + packname;
            Uri uri = Uri.parse(uristr);
            Intent deleteIntent = new Intent();
            deleteIntent.setAction(Intent.ACTION_DELETE);
            deleteIntent.setData(uri);
            startActivityForResult(deleteIntent, 0);
        }
    }