Question

我已经在android studio中为网站实现了chrome自定义选项卡和webview。他们都工作正常。现在我想要的是，如果用户没有安装chrome或者chrome版本低于45（chrome自定义选项卡需要最低版本），那么打开webview类。如何检查chrome版本或是否安装了chrome？ Here is the code snipet to open chrome custom tab by default

Answer 1

您应该尝试绑定到该服务，如果它失败，那么您可以回退到webview。你可以在这里看到它：https://github.com/GoogleChrome/custom-tabs-client/blob/cc6b8b9169ed7e70484bbdbbf39b672d1c4b3c80/Application/src/main/java/org/chromium/customtabsclient/MainActivity.java#L147

Answer 2

取自https://github.com/GoogleChrome/custom-tabs-client/blob/master/demos/src/main/java/org/chromium/customtabsdemos/CustomTabActivityHelper.java：

public void bindCustomTabsService(Activity activity) {
    if (mClient != null) return;

    String packageName = CustomTabsHelper.getPackageNameToUse(activity);
    if (packageName == null) return;

    mConnection = new ServiceConnection(this);
    CustomTabsClient.bindCustomTabsService(activity, packageName, mConnection);
}

您可以查看＆＃39; packageName＆＃39;为空

Answer 3

为了我自己的目的，我使用了以下代码来检查chrome版本是否安装了chrome。希望它会有所帮助，你应该尝试。

String chromePackageName = "com.android.chrome";
int chromeTargetVersion  = 45;

boolean isSupportCustomTab = false;

try {
    PackageManager pm = getApplicationContext().getPackageManager();
    List<PackageInfo> list = pm.getInstalledPackages(PackageManager.MATCH_DEFAULT_ONLY);
    if (list != null && 0 < list.size()) {
        for (PackageInfo info : list) {
            if (chromePackageName.equals(info.packageName)) {

                String chromeVersion = pm.getPackageInfo(chromePackageName, 0).versionName;
                if(chromeVersion.contains(".")) {
                    chromeVersion = chromeVersion.substring(0, chromeVersion.indexOf('.'));
                }
                isSupportCustomTab = (Integer.valueOf(chromeVersion) >= chromeTargetVersion);

                break;
            }
        }
    }
} catch (Exception ex) {}

if (isSupportCustomTab) {
    //Use Chrome Custom Tab
} else {
    //Use WebView
}

如何在android中切换chrome自定义选项卡和webview？

3 个答案: