我错过了从Android webview打开谷歌地图的东西 _android

农村四月闲人少，勤学苦攻把名扬。这篇文章主要讲述我错过了从Android webview打开谷歌地图的东西相关的知识，希望能为你提供帮助。
我是android编程环境的新手，正在创建我的第一个应用程序。我想在webview中点击谷歌地图链接时让webview打开谷歌地图。我错过了为什么这仍然打开webview中的链接而不是执行谷歌地图？当它在webview中打开时，它显示目的地正常，但它没有显示我的位置，并说明它无法确定我在显示的页面底部的位置
这是MainActivity

package com.example.micha.myapplication; import android.content.Intent; import android.net.Uri; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.webkit.CookieManager; import android.webkit.DownloadListener; import android.webkit.GeolocationPermissions; import android.webkit.WebChromeClient; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; public class MainActivity extends AppCompatActivity {/** * WebViewClient subclass loads all hyperlinks in the existing WebView */ public class GeoWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { // When user clicks a hyperlink, load in the existing WebView view.loadUrl(url); return true; } }/** * WebChromeClient subclass handles UI-related calls * Note: think chrome as in decoration, not the Chrome browser */ public class GeoWebChromeClient extends WebChromeClient { @Override public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) { // Always grant permission since the app itself requires location // permission and the user has therefore already granted it callback.invoke(origin, true, false); } }private WebView myWebView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myWebView = findViewById(R.id.webView); WebView myWebView = findViewById(R.id.webView); WebSettings webSettings = myWebView.getSettings(); myWebView.setWebViewClient(new GeoWebViewClient()); webSettings.setjavascriptEnabled(true); myWebView.getSettings().setGeolocationEnabled(true); CookieManager.getInstance().setAcceptCookie(true); //webSettings.setDomStorageEnabled(true); myWebView.clearHistory(); myWebView.clearFormData(); myWebView.clearCache(true); myWebView.setWebViewClient(new WebViewClient(){ @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { if( url.startsWith("http:") || url.startsWith("https:") ) { return false; }if(url.contains("https://www.google.com/maps/")) { Uri gmmIntentUri = Uri.parse(url); Intent mapIntent = new Intent(Intent.ACTION_VIEW, gmmIntentUri); mapIntent.setPackage("com.google.android.apps.maps"); if (mapIntent.resolveActivity(getPackageManager()) != null) { startActivity(mapIntent); } return true; }// Otherwise allow the OS to handle things like tel, mailto, etc. Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); startActivity( intent ); return true; }}); myWebView.loadUrl("http://www.example.com"); //THIS IS TO DOWNLOAD THE PDF FILES OR OTHER DOWNLOAD LINKS myWebView.setDownloadListener(new DownloadListener() { @Override public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse(url))); } }); }@Override public void onBackPressed() { if (myWebView.canGoBack()) { myWebView.goBack(); return; } super.onBackPressed(); }}Here is the AndroidManifest.XML< ?xml version="1.0" encoding="utf-8"?> < manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.micha.myapplication"> < uses-permission android:name="android.permission.INTERNET" /> < uses-permission android:name="android.permission.ACTION_DIAL"/> < uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /> < uses-permission android:name="android.permission.ACCESS_DOWNLOAD_MANAGER"/> < uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> < uses-permission android:name="android.permission.ACCESS_GPS" /> < uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" /> < uses-permission android:name="android.permission.ACCESS_LOCATION" /> < uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> < uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/> < application android:allowBackup="true" android:icon="@mipmap/ic_principal" android:label="Admin Tools" android:supportsRtl="true" android:theme="@style/Theme.AppCompat.NoActionBar"> < activity android:name=".MainActivity" android:screenOrientation="portrait"> < intent-filter> < action android:name="android.intent.action.MAIN" /> < category android:name="android.intent.category.LAUNCHER" /> < /intent-filter> < /activity> < /application> < /manifest>

答案发现了问题。
【我错过了从Android webview打开谷歌地图的东西】if( url.startsWith("http:") || url.startsWith("https:") ) {
阻止谷歌地图打开，因为它强制任何带https的网址都保留在网页浏览量中。将其修改为
if( url.startsWith("http:")) {
现在一切都很好。