[英]How use Android webview in fragment
HomeFragment.java首页Fragment.java
package com.example.starcitizen.fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.WebView;
import androidx.fragment.app.Fragment;
import com.example.starcitizen.R;
public class HomeFragment extends Fragment {
public HomeFragment(){ }
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState){
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
String url = "http://google.com";
WebView view = (WebView) rootView.findViewById(R.id.home_webview);
view.getSettings().setJavaScriptEnabled(true);
view.loadUrl(url);
return rootView ;
}
}
fragment_home片段主页
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.starcitizen.fragment.HomeFragment">
<WebView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/home_webview"
android:layout_alignParentTop="true"
android:layout_alignParentStart="true"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true" />
</RelativeLayout>
I looked at other questions.我看了其他问题。 but my app is not works.但我的应用程序不起作用。 So I wonder if I need to fix my main activity.所以我想知道我是否需要修复我的主要活动。 So I attached the main activity.所以我附上了主要活动。
MainActivity.java MainActivity.java
package com.example.starcitizen;
import android.os.Bundle;
import androidx.navigation.NavController;
import androidx.navigation.Navigation;
import androidx.navigation.ui.AppBarConfiguration;
import androidx.navigation.ui.NavigationUI;
import com.google.android.material.navigation.NavigationView;
import androidx.drawerlayout.widget.DrawerLayout;
import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import android.view.Menu;
public class MainActivity extends AppCompatActivity {
private AppBarConfiguration mAppBarConfiguration;
@Override
protected void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
DrawerLayout drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
mAppBarConfiguration = new AppBarConfiguration.Builder(
R.id.nav_home, R.id.nav_guide, R.id.nav_maps,
R.id.nav_ships, R.id.nav_weapons, R.id.nav_mission)
.setDrawerLayout(drawer)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, mAppBarConfiguration);
NavigationUI.setupWithNavController(navigationView, navController);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onSupportNavigateUp() {
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
return NavigationUI.navigateUp(navController, mAppBarConfiguration)
|| super.onSupportNavigateUp();
}
}
Sorry I'm not good at english.对不起,我英语不好。 So with help of a translator... and I asked stackoverflow for the first time.所以在翻译的帮助下......我第一次问了stackoverflow。
I'm working on an app for koreans.我正在为韩国人开发一个应用程序。 but I have some problem in fragment.但我在片段中有一些问题。
If a webview is entered, App will be turned off without running.如果输入 webview,App 将被关闭而不运行。
please help me.请帮我。
add logcat!添加日志猫!
11-15 20:00:31.465 3666-3666/com.example.starcitizen E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.starcitizen, PID: 3666 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.starcitizen/com.example.starcitizen.MainActivity}: android.view.InflateException: Binary XML file line #8: Error inflating class android.webkit.WebView at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.ActivityThread.access$800(ActivityThread.java:151) at android. 11-15 20:00:31.465 3666-3666/com.example.starcitizen E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.starcitizen, PID: 3666 java.lang.RuntimeException: Unable to start activity ComponentInfo{com. example.starcitizen/com.example.starcitizen.MainActivity}: android.view.InflateException: Binary XML file line #8: Error inflating class android.webkit.WebView at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2325) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.ActivityThread.access$800(ActivityThread.java:151) at android. app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: android.view.InflateExcep app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread .main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit $MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: android.view.InflateExcep tion: Binary XML file line #8: Error inflating class android.webkit.WebView at android.view.LayoutInflater.createView(LayoutInflater.java:633) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:741) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android.view.LayoutInflater.inflate(LayoutInflater.java:504) tion: Binary XML file line #8: Error inflating class android.webkit.WebView at android.view.LayoutInflater.createView(LayoutInflater.java:633) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java :55) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:741) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android .view.LayoutInflater.inflate(LayoutInflater.java:504) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at com.example.starcitizen.fragment.HomeFragment.onCreateView(HomeFragment.java:18) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2600) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:881) at androidx.fragment.app.FragmentManagerImpl.addAddedFragments(FragmentManagerImpl.java:2100) at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1874) at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1830) at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1727) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at com.example.starcitizen.fragment.HomeFragment.onCreateView(HomeFragment.java:18) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2600 ) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:881) at androidx.fragment.app.FragmentManagerImpl.addAddedFragments(FragmentManagerImpl.java:2100) at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java: 1874) at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1830) at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1727) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2663) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613) at androidx.fragment.app.Fragment.performActivityCreated(Fragment.java:2624) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:904) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2659) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613) at androidx at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2663) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613) at androidx.fragment.app.Fragment.performActivityCreated(Fragment.java:2624 ) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:904) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java: 1303) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2659) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613) at androidx .fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:246) at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:542) at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:201) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1236) at android.app.Activity.performStart(Activity.java:6006) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.ActivityThread.access$800(ActivityThread.java:151) at ZC31B32364CE19CA8FCD1 .fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:246) at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:542) at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:201) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1236) at android.app.Activity.performStart(Activity.java:6006) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288) at android.app.ActivityThread .handleLaunchActivity(ActivityThread.java:2387) at android.app.ActivityThread.access$800(ActivityThread.java:151) at ZC31B32364CE19CA8FCD1 50A417ECCE58Z.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: Z93F725A07423FE1C889F448B33D21 50A417ECCE58Z.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app .ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os .ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700) Caused by: Z93F725A07423FE1C889F448B33D21 F46Z.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:288) at android.view.LayoutInflater.createView(LayoutInflater.java:607) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682) at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:741) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android.view.Lay F46Z.lang.reflect.InvocationTargetException at java.lang.reflect.Constructor.newInstance(Native Method) at java.lang.reflect.Constructor.newInstance(Constructor.java:288) at android.view.LayoutInflater.createView(LayoutInflater.java :607) at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:55) at android.view.LayoutInflater.onCreateView(LayoutInflater.java:682) at android.view.LayoutInflater.createViewFromTag(LayoutInflater. java:741) at android.view.LayoutInflater.rInflate(LayoutInflater.java:806) at android.view.Lay outInflater.inflate(LayoutInflater.java:504) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at com.example.starcitizen.fragment.HomeFragment.onCreateView(HomeFragment.java:18) at androidx.fragment.app.Fragment.performCreateView(Fragment.java:2600) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:881) at androidx.fragment.app.FragmentManagerImpl.addAddedFragments(FragmentManagerImpl.java:2100) at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1874) at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1830) at androidx.fragment.app.FragmentManagerI outInflater.inflate(LayoutInflater.java:504) at android.view.LayoutInflater.inflate(LayoutInflater.java:414) at com.example.starcitizen.fragment.HomeFragment.onCreateView(HomeFragment.java:18) at androidx.fragment.app .Fragment.performCreateView(Fragment.java:2600) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:881) at androidx.fragment.app.FragmentManagerImpl.addAddedFragments(FragmentManagerImpl.java:2100) at androidx.fragment. app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1874) at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1830) at androidx.fragment.app.FragmentManagerI mpl.execPendingActions(FragmentManagerImpl.java:1727) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2663) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613) at androidx.fragment.app.Fragment.performActivityCreated(Fragment.java:2624) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:904) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2659) at androidx.fragment.app.FragmentManagerImpl.dispa mpl.execPendingActions(FragmentManagerImpl.java:1727) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2663) at androidx.fragment.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManagerImpl.java:2613) at androidx.fragment.app .Fragment.performActivityCreated(Fragment.java:2624) at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:904) at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238) at androidx.fragment. app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303) at androidx.fragment.app.FragmentManagerImpl.dispatchStateChange(FragmentManagerImpl.java:2659) at androidx.fragment.app.FragmentManagerImpl.dispa tchActivityCreated(FragmentManagerImpl.java:2613) at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:246) at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:542) at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:201) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1236) at android.app.Activity.performStart(Activity.java:6006) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2288) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.Activity tchActivityCreated(FragmentManagerImpl.java:2613) at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:246) at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:542) at androidx.appcompat.app.AppCompatActivity .onStart(AppCompatActivity.java:201) at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1236) at android.app.Activity.performStart(Activity.java:6006) at android.app.ActivityThread.performLaunchActivity(ActivityThread. java:2288) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387) at android.app.Activity Thread.access$800(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit. Thread.access$800(ActivityThread.java:151) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper. loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5254) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method. java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905) at com.android.internal.os.ZygoteInit. main(ZygoteInit.java:700) Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x2040003 at android.content.res.Resources.getText(Resources.java:299) at android.content.res.Resources.getString(Resources.java:385) at com.android.org.chromium.content.browser.ContentViewCore main(ZygoteInit.java:700) Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x2040003 at android.content.res.Resources.getText(Resources.java:299) at android.content.res. Resources.getString(Resources.java:385) 在 com.android.org.chromium.content.browser.ContentViewCore
Tried to understand but failed..试图理解但失败了..
activity_main.xml activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.drawerlayout.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="@layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<com.google.android.material.navigation.NavigationView
android:id="@+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="@layout/nav_header_main"
app:menu="@menu/activity_main_drawer" />
</androidx.drawerlayout.widget.DrawerLayout>
There is no difference to use
WebView
inActivity
andFragment
.在Activity
和Fragment
中使用WebView
没有区别。
I can't figure your troubleshooting but I recommend you to check the following things.我无法确定您的故障排除,但我建议您检查以下事项。
<uses-permission android:name="android.permission.INTERNET" />
check if there is Runtime
Exception in onAttach()
of HomeFragment
.检查 HomeFragment 的HomeFragment
onAttach()
中是否存在Runtime
异常。
If you wanna see the WebView
in Fragment
, you should declare the following code.如果你想在Fragment
中看到WebView
,你应该声明以下代码。
view.setWebViewClient(new WebViewClient());
Update更新
final String source = "http://google.com";
final WebView webView = (WebView) rootView.findViewById(R.id.home_webview);
//webView.loadUrl(url);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
//Do some like progress bar loading here.
}
@Override
public void onPageFinished(WebView view, String url) {
webView.loadUrl(source);
}
});
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.