使用“Powered By Chrome”和操作菜单打开自定义 WebView

我最近注意到，当在一些 Android 应用程序中打开链接时，它们具有相似的外观和感觉，并且自定义操作菜单在自定义菜单下方带有“由 Chrome 提供支持”。这里面使用了什么组件还是仍然是 ChromiumWebView？希望我希望将它们添加到我的下一个项目中，其中涉及打开应用程序内的链接。

LinkedIn App

Twitter App

GMail App

It is Chrome 自定义标签 https://developer.chrome.com/multidevice/android/customtabs。您可以在 Google Chrome 中查看示例代码here https://github.com/GoogleChrome/custom-tabs-client.

尝试以下 util 类：

public class CustomTabs {

    private static final int TOOLBAR_SHARE_ITEM_ID = 1;

    public static void openTab(Context context, String url) {
        CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();

        enableUrlBarHiding(builder);
        setToolbarColor(context, builder);
        setSecondaryToolbarColor(context, builder);
        setCloseButtonIcon(context, builder);
        setShowTitle(builder);
        setAnimations(context, builder);
        setShareActionButton(context, builder, url);
        addToolbarShareItem(context, builder, url);
        addShareMenuItem(builder);
        addCopyMenuItem(context, builder);

        CustomTabsIntent customTabsIntent = builder.build();
        customTabsIntent.launchUrl(context, Uri.parse(url));
    }

    /* Enables the url bar to hide as the user scrolls down on the page */
    private static void enableUrlBarHiding(CustomTabsIntent.Builder builder) {
        builder.enableUrlBarHiding();
    }

    /* Sets the toolbar color */
    private static void setToolbarColor(Context context, CustomTabsIntent.Builder builder) {
        builder.setToolbarColor(ContextCompat.getColor(context, R.color.colorPrimary));
    }

    /* Sets the secondary toolbar color */
    private static void setSecondaryToolbarColor(Context context, CustomTabsIntent.Builder builder) {
        builder.setSecondaryToolbarColor(ContextCompat.getColor(context, R.color.colorPrimary));
    }    

    /* Sets the Close button icon for the custom tab */
    private static void setCloseButtonIcon(Context context, CustomTabsIntent.Builder builder) {
        builder.setCloseButtonIcon(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_arrow_back));
    }

    /* Sets whether the title should be shown in the custom tab */
    private static void setShowTitle(CustomTabsIntent.Builder builder) {
        builder.setShowTitle(true);
    }

    /* Sets animations */
    private static void setAnimations(Context context, CustomTabsIntent.Builder builder) {
        builder.setStartAnimations(context, R.anim.slide_in_right, R.anim.slide_out_left);
        builder.setExitAnimations(context, R.anim.slide_in_left, R.anim.slide_out_right);
    }

    /* Sets share action button that is displayed in the Toolbar */
    private static void setShareActionButton(Context context, CustomTabsIntent.Builder builder, String url) {
        Bitmap icon = BitmapFactory.decodeResource(context.getResources(), android.R.drawable.ic_menu_share);
        String label = "Share via";

        Intent shareIntent = new Intent(Intent.ACTION_SEND);
        shareIntent.putExtra(Intent.EXTRA_TEXT, url);
        shareIntent.setType("text/plain");

        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, shareIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        builder.setActionButton(icon, label, pendingIntent);
    }

    /* Adds share item that is displayed in the secondary Toolbar */
    private static void addToolbarShareItem(Context context, CustomTabsIntent.Builder builder, String url) {
        Bitmap icon = BitmapFactory.decodeResource(context.getResources(), android.R.drawable.ic_menu_share);
        String label = "Share via";

        Intent shareIntent = new Intent(Intent.ACTION_SEND);
        shareIntent.putExtra(Intent.EXTRA_TEXT, url);
        shareIntent.setType("text/plain");

        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, shareIntent, PendingIntent.FLAG_UPDATE_CURRENT);

        builder.addToolbarItem(TOOLBAR_SHARE_ITEM_ID, icon, label, pendingIntent);

    }

    /* Adds a default share item to the menu */
    private static void addShareMenuItem(CustomTabsIntent.Builder builder) {
        builder.addDefaultShareMenuItem();
    }

    /* Adds a copy item to the menu */
    private static void addCopyMenuItem(Context context, CustomTabsIntent.Builder builder) {
        String label = "Copy";
        Intent intent = new Intent(context, CopyBroadcastReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);

        builder.addMenuItem(label, pendingIntent);
    }

    public static class CopyBroadcastReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {
            String url = intent.getDataString();

            ClipboardManager clipboardManager = (ClipboardManager) context.getSystemService(Context.CLIPBOARD_SERVICE);
            ClipData data = ClipData.newPlainText("Link", url);
            clipboardManager.setPrimaryClip(data);

            Toast.makeText(context, "Copied " + url, Toast.LENGTH_SHORT).show();
        }
    }
}

不要忘记将依赖项添加到您的app/build.gradle

dependencies {
    ...
    compile 'com.android.support:customtabs:25.2.0'
}

并注册您的BroadcastReceiver在你的AndroidManifest.xml

<application>
    ...
    <receiver android:name=".CustomTabs$CopyBroadcastReceiver" />
</application>

这是动画 xml：

Slide_in_left.xml

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXDelta="100%p" android:toXDelta="0%p"
    android:duration="@android:integer/config_longAnimTime"
    android:interpolator="@android:anim/overshoot_interpolator" />

Slide_in_right.xml

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXDelta="-100%p" android:toXDelta="0%p"
    android:duration="@android:integer/config_longAnimTime"
    android:interpolator="@android:anim/overshoot_interpolator" />

Slide_out_left.xml

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXDelta="0" android:toXDelta="-100%p"
    android:duration="@android:integer/config_longAnimTime"
    android:interpolator="@android:anim/overshoot_interpolator" />

Slide_out_right.xml

<?xml version="1.0" encoding="utf-8"?>
<translate xmlns:android="http://schemas.android.com/apk/res/android"
    android:fromXDelta="0" android:toXDelta="100%p"
    android:duration="@android:integer/config_longAnimTime"
    android:interpolator="@android:anim/overshoot_interpolator" />