我一直在为SHPE的Stony Brook章节开发一个WebView应用程序，我试图实现深层链接，如果用户点击或打开浏览器中的URL，它将在应用程序中打开。我已经完成了所有工作，甚至为工作发布部分上传文件，我在网站上禁用了ajax，因为它导致了问题。缓存我不确定实际上是否正常运行，但就目前而言，我只是希望深层链接工作，因为该网站使用OneSignal进行通知，而它们只是在点击时在浏览器中打开。如果我可以在应用程序中捕获URL并从stonybrookshpe.org打开任何内容，它将解决我的问题，但我被卡住了，谢谢。继承我的MainActivity.java
package org.stonybrookshpe.stonybrookshpe;
import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.net.ConnectivityManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import com.onesignal.OneSignal;
public class MainActivity extends AppCompatActivity {
WebView webView;
ConnectivityManager cM;
private static final String TAG = MainActivity.class.getSimpleName();
private String mCM;
private ValueCallback<Uri> mUM;
private ValueCallback<Uri[]> mUMA;
private final static int FCR = 1;
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
super.onActivityResult(requestCode, resultCode, intent);
if (Build.VERSION.SDK_INT >= 21) {
Uri[] results = null;
//Check if response is positive
if (resultCode == Activity.RESULT_OK) {
if (requestCode == FCR) {
if (null == mUMA) {
return;
}
if (intent == null || intent.getData() == null) {
//Capture Photo if no image available
if (mCM != null) {
results = new Uri[]{Uri.parse(mCM)};
}
} else {
String dataString = intent.getDataString();
if (dataString != null) {
results = new Uri[]{Uri.parse(dataString)};
}
}
}
}
mUMA.onReceiveValue(results);
mUMA = null;
} else {
if (requestCode == FCR) {
if (null == mUM) return;
Uri result = intent == null || resultCode != RESULT_OK ? null : intent.getData();
mUM.onReceiveValue(result);
mUM = null;
}
}
}
@SuppressLint({"SetJavaScriptEnabled", "WrongViewCast"})
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// OneSignal Initialization
OneSignal.startInit(this)
.inFocusDisplaying(OneSignal.OSInFocusDisplayOption.Notification)
.unsubscribeWhenNotificationsAreDisabled(true)
.init();
OneSignal.setEmail("sbshpe@gmail.com");
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= 23 && (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)) {
ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA}, 1);
}
webView = (WebView) findViewById(R.id.ifView);
assert webView != null;
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setAllowFileAccess(true);
webSettings.setAllowFileAccess(true);
if (Build.VERSION.SDK_INT >= 21) {
webSettings.setMixedContentMode(0);
webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
} else if (Build.VERSION.SDK_INT >= 19) {
webView.setLayerType(View.LAYER_TYPE_HARDWARE, null);
} else if (Build.VERSION.SDK_INT < 19) {
webView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
}
webView.setWebViewClient(new Callback());
cM = (ConnectivityManager) this.getSystemService(Activity.CONNECTIVITY_SERVICE);
if(cM != null && cM.getActiveNetworkInfo() != null && cM.getActiveNetworkInfo().isConnected()){
webSettings.setCacheMode(WebSettings.LOAD_DEFAULT);
webView.loadUrl("http://stonybrookshpe.org");
}
else{
webSettings.setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
webView.loadUrl("http://stonybrookshpe.org");
}
webView.setWebChromeClient(new WebChromeClient() {
//For Android 3.0+
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUM = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
MainActivity.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), FCR);
}
// For Android 3.0+, above method not supported in some android 3+ versions, in such case we use this
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
mUM = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
MainActivity.this.startActivityForResult(
Intent.createChooser(i, "File Browser"),
FCR);
}
//For Android 4.1+
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
mUM = uploadMsg;
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("*/*");
MainActivity.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), MainActivity.FCR);
}
//For Android 5.0+
public boolean onShowFileChooser(
WebView webView, ValueCallback<Uri[]> filePathCallback,
WebChromeClient.FileChooserParams fileChooserParams) {
if (mUMA != null) {
mUMA.onReceiveValue(null);
}
mUMA = filePathCallback;
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(MainActivity.this.getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
takePictureIntent.putExtra("PhotoPath", mCM);
} catch (IOException ex) {
Log.e(TAG, "Image file creation failed", ex);
}
if (photoFile != null) {
mCM = "file:" + photoFile.getAbsolutePath();
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
} else {
takePictureIntent = null;
}
}
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.setType("*/*");
Intent[] intentArray;
if (takePictureIntent != null) {
intentArray = new Intent[]{takePictureIntent};
} else {
intentArray = new Intent[0];
}
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
startActivityForResult(chooserIntent, FCR);
return true;
}
});
}
public class Callback extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
/*
Log.i(TAG, "shouldOverrideUrlLoading: " + url);
Intent intent;
if (url.contains(AppConstants.http://stonybrookshpe.org)) {
if (Uri.parse(url).getHost().equals("stonybrookshpe.org")) {
view.loadUrl(url);
return true;
}
*/
if (url.startsWith("mailto:")) {
// We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
// Parse the url and set it as the data for the `Intent`.
emailIntent.setData(Uri.parse(url));
// `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of this application.
emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
// Make it so.
startActivity(emailIntent);
return true;
}
else {
if (Uri.parse(url).getHost().equals("stonybrookshpe.org")) {
return false;
}
}
return true;
/*
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
*/
}
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
String html = "";
String mime = "text/html";
String encoding = "utf-8";
//webview myWebView = (WebView)this.findViewById(R.id.ifView);
webView.loadDataWithBaseURL(null, html, mime, encoding, null);
}
}
// Create an image file
private File createImageFile() throws IOException {
@SuppressLint("SimpleDateFormat") String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "img_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
return File.createTempFile(imageFileName, ".jpg", storageDir);
}
@Override
public boolean onKeyDown(int keyCode, @NonNull KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
if (webView.canGoBack()) {
webView.goBack();
} else {
finish();
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
/*
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
}
*/
}
和我的AndroidManifest.xml
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.stonybrookshpe.stonybrookshpe">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/StonyBrookSHPE">
<activity android:name=".MainActivity"
android:theme="@style/StonyBrookSHPE">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<!-- Accepts URIs that begin with "http://www.example.com/gizmos” -->
<data android:scheme="http"
android:host="stonybrookshpe.org"
android:pathPrefix="/" />
<!-- note that the leading "/" is required for pathPrefix-->
</intent-filter>
</activity>
</application>
</manifest>
答案 0 :(得分：0)
试试此代码
public class OnesignalApi extends Application {
@Override
public void onCreate() {
super.onCreate();
OneSignal.startInit(this)
.setNotificationOpenedHandler(new NotificationOpenedHandler())
.inFocusDisplaying(OneSignal.OSInFocusDisplayOption.Notification)
.unsubscribeWhenNotificationsAreDisabled(true)
.init();
}
private class NotificationOpenedHandler implements OneSignal.NotificationOpenedHandler {
// This fires when a notification is opened by tapping on it.
@Override
public void notificationOpened(OSNotificationOpenResult result) {
String launchUrl = result.notification.payload.launchURL;
Object activityToLaunch = WebviewActivity.class;
Intent intent = new Intent(getApplicationContext(), (Class<?>) activityToLaunch);
intent.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT | Intent.FLAG_ACTIVITY_NEW_TASK);
intent.putExtra("openURL", launchUrl);
startActivity(intent);
}
}
}
在你的webview课程中
String openURL = getIntent().getStringExtra("openURL");
if (openURL != null) {
Webview.loadUrl(openURL);
}
else{
Webview.loadUrl(LINK);
}
你的清单
<application
android:label="@string/app_name"
android:name=".OnesignalApi"
android:theme="@style/AppTheme">
<meta-data android:name="com.onesignal.NotificationOpened.DEFAULT" android:value="DISABLE" />
</application>