i have android project
using webview but my problem thats html file chose file working good from web browser but when using the android app webview its not working this is my activity_amin code
<WebView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
android:id="#+id/webView"
/>
and this is MainActivity java code
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
WebView webview;
#Override
public void onBackPressed() {
if(webview.canGoBack()){
webview.goBack();
}else {
super.onBackPressed();
}
}
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview = (WebView) findViewById(R.id.webView);
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webview.setWebViewClient(new WebViewClient());
webview.loadUrl("http://softya.com/fitness_time/public/");
}
}
any help please
try this as you Mainactivity.java
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = findViewById(R.id.web);
webView.loadUrl("http://www.google.com");
WebSettings webSettings = webView.getSettings();
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient());
}
#Override
public void onBackPressed() {
if(webView.canGoBack()){
webView.goBack();
}
else
{
finish();
}
}
}
add this in your Menifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.aashiq.webview">
<uses-permission android:name="android.permission.INTERNET"></uses- permission>
<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/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
add this in your activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<WebView
android:id="#+id/web"
android:layout_width="match_parent"
android:layout_height="match_parent">
</WebView>
</RelativeLayout>
You can try setting the webview settings by
webView.getSettings().setAllowFileAccess(true);
Rewritten code
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview = (WebView) findViewById(R.id.webView);
webview.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setAllowFileAccess(true);
webview.setWebViewClient(new WebViewClient());
webview.loadUrl("http://softya.com/fitness_time/public/");
}
According to your error first you clean your code
then create MyWebViewClient class outside of onCreate method.And check you add webview inside of activity xml or not.
Related
Overview-
A white screen appears after the splash activity every time I launch the app, I have tried many solutions but nothing has worked out if anyone knows the solution please help!
Thanks!
enter code here-
manifest file-
<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/AppTheme"
android:usesCleartextTraffic="true">
<activity android:name=".splash_activity"
android:theme="#style/AppTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
<activity android:name=".MainActivity"></activity>
</application>
enter code here-
XML file-
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:windowDisablePreview">true</item>
<item name="android:windowBackground">#null</item>
<item name="android:windowIsTranslucent">true</item>
</style>
</resources>
enter code here-
java file-
package com.cnc.cncapp;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
public class splash_activity extends AppCompatActivity {
private Handler mHandler;
private Runnable mRunnable;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash_activity);
mRunnable = new Runnable() {
#Override
public void run() {
startActivity(new Intent(getApplicationContext(),MainActivity.class));
}
};
mHandler = new Handler();
mHandler.postDelayed(mRunnable,2000);
}
#Override
protected void onDestroy() {
super.onDestroy();
if(mHandler!=null && mRunnable!=null){
mHandler.removeCallbacks(mRunnable);
}
}
}
enter code here-
Main activity-
package com.cnc.cncapp;
import androidx.appcompat.app.AppCompatActivity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
private WebView mywebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mywebView=(WebView) findViewById(R.id.webview);
mywebView.setWebViewClient(new WebViewClient());
mywebView.loadUrl("https://www.cncrooms.in/");
WebSettings webSettings=mywebView.getSettings();
webSettings.setJavaScriptEnabled(true);
}
public class mywebClient extends WebViewClient{
#Override
public void onPageStarted(WebView view, String url, Bitmap favicon){
super.onPageStarted(view,url,favicon);
}
#Override
public boolean shouldOverrideUrlLoading(WebView view,String url){
view.loadUrl(url);
return true;
}
}
#Override
public void onBackPressed(){
if(mywebView.canGoBack()) {
mywebView.goBack();
}
else{
super.onBackPressed();
}
}
}
enter code here-
layout file-
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#000000"
tools:context=".splash_activity">
<ImageView
android:layout_width="228dp"
android:layout_height="209dp"
android:layout_marginStart="91dp"
android:layout_marginLeft="91dp"
android:layout_marginTop="261dp"
android:layout_marginEnd="92dp"
android:layout_marginRight="92dp"
android:layout_marginBottom="261dp"
android:src="#drawable/rsz_sitelogo"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
</ImageView>
</androidx.constraintlayout.widget.ConstraintLayout>
enter code here
Main Activity layout file
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<WebView
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
I'm using parts of code form some tutorial to create webview app. Goals is - to open links, that not contain appdev365 in browser, not in webview. I am completly noob at android development, so all that i've searched - didn't match to my(from tutorial) code.
MainActivity.java
package com.example.ynt;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.content.Intent;
public class MainActivity extends AppCompatActivity {
private WebView webView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webView = (WebView) findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient());
webView.loadUrl("https://yatln.com/appdev365/index.php");
WebSettings webSettings = webView.getSettings();
webSettings.setJavaScriptEnabled(true);
}
#Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.ynt">
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="Y&T База талантов"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:usesCleartextTraffic="true"
android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
activity_main.xml
<?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.ynt.MainActivity">
<WebView
android:id="#+id/webview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="visible" />
</RelativeLayout>
SOLUTION (by Varma Lanke):
https://gist.github.com/codedamage/8f98e2ed13d1d1fa05e5d43e67ea3e6c
private WebView htmlWebView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
htmlWebView = (WebView)findViewById(R.id.webview);
htmlWebView.setWebViewClient(new CustomWebViewClient());
WebSettings webSetting = htmlWebView.getSettings();
webSetting.setJavaScriptEnabled(true);
webSetting.setDisplayZoomControls(true);
htmlWebView.loadUrl("https://yatln.com/appdev365/index.php");
}
private class CustomWebViewClient extends WebViewClient{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(url.contains("appdev365"))
view.loadUrl(url);
else{
Intent i = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(i);
}
// view.loadUrl(url);
return true;
}
}
For you should use shouldOverrideUrlLoading method, once try the below one
private WebView htmlWebView;
String url = "https://yatln.com/appdev365/index.php";
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mainpage);
htmlWebView = (WebView)findViewById(R.id.webView);
if(url.contains("appdev365"))
htmlWebView.setWebViewClient(new CustomWebViewClient());
WebSettings webSetting = htmlWebView.getSettings();
webSetting.setJavaScriptEnabled(true);
webSetting.setDisplayZoomControls(true);
htmlWebView.loadUrl(url);
}
private class CustomWebViewClient extends WebViewClient{
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if(url.equalsIgnoreCase("appdev365"))
view.loadUrl(url);
return true;
}
}
This code opens browser and specified link (ex. google.com):
Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
startActivity(browserIntent);
activity_main
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.google.httpwww.google.MainActivity">
<WebView
android:id="#+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_centerHorizontal="true"
tools:layout_editor_absoluteX="8dp"
tools:layout_editor_absoluteY="8dp" />
</RelativeLayout>
MainActivity.java
package com.google.httpwww.google;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.os.Bundle;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
WebView webview;
#Override
public void onBackPressed() {
if (webview.canGoBack()) {
webview.goBack();
} else {
super.onBackPressed();
}
}
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
webview = (WebView) findViewById(R.id.webView);
WebSettings webSettings = webview.getSettings();
webSettings.setJavaScriptEnabled(true);
webview.setWebViewClient(new WebViewClient());
webview.loadUrl("http://www.google.com/");
}
}
AndroidManifest
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.google.httpwww.google">
<uses-permission android:name="android.permission.INTERNET"/>
<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/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
As I run the app it gives white blank page with header as name of app. On internet most of case is based on at the begining of app there is white page but in my case it's remaining. Is there any idea what I am doing wrong?
P.S: I am new about android apps what I need just a app which will show my website.
So I have my website linked on to my web view. However, when I update my website and restart my app, the changes do not reflect on the app. Here is my code:
Here is my code:
MainActivity.java
package com.myworldrules.apps.lifehacks;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
private WebView view;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String url = "http://hacks.myworldrules.com";
view=(WebView) this.findViewById(R.id.webView);
view.getSettings().setJavaScriptEnabled(true);
view.loadUrl(url);
view.setWebViewClient(new WebViewClient());
}
}
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myworldrules.apps.lifehacks">
<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/AppTheme">
<activity android:name=".MainActivity"
android:configChanges="orientation|screenSize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
Activity.main/xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.myworldrules.apps.lifehacks.MainActivity">
<WebView
android:id="#+id/webView"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</android.support.constraint.ConstraintLayout>
Please help me with my code.
Modify your java code as -
package com.myworldrules.apps.lifehacks;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
private WebView view;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String url = "http://hacks.myworldrules.com";
view=(WebView) this.findViewById(R.id.webView);
view.clearCache(true);
WebSettings webSettings = view.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
webSettings.setAppCacheEnabled(false);
view.loadUrl(url);
view.setWebViewClient(new WebViewClient());
}
}
I am using two buttons to open two url links. When i press button it goes to browser. But I want to open these url links within my application. Can somebody help me to solve my issue. My code as below :
Activity Main :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.example.vkumar.myapplication.MainActivity"
android:background="#d3a7a7">
<Button
android:layout_width="150dp"
android:layout_height="wrap_content"
android:text="GOOGLE"
android:onClick="browser1"
android:id="#+id/browser1"
android:layout_gravity="center"
android:layout_marginTop="30dp"
android:background="#android:color/holo_blue_dark" />
<Button
android:layout_width="150dp"
android:layout_height="wrap_content"
android:text="MAIL"
android:id="#+id/browser2"
android:onClick="browser2"
android:layout_gravity="center"
android:layout_marginTop="30dp"
android:background="#android:color/holo_blue_dark" />
</LinearLayout>
Main Activity :
package com.example.vkumar.myapplication;
import android.content.Intent;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Button browser1 = (Button) findViewById(R.id.browser1);
Button browser2 = (Button) findViewById(R.id.browser2);
Button browser3 = (Button) findViewById(R.id.browser3);
Button browser4 = (Button) findViewById(R.id.browser4);
Button browser5 = (Button) findViewById(R.id.browser5);
}
public void browser1 (View view) {
Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("https://www.google.co.in/"));
startActivity(intent);
}
public void browser2 (View v) {
Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.gmail.com/"));
startActivity(intent);
}
}
Android manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.vkumar.myapplication">
<uses-permission android:name="android.permission.INTERNET" />
<application android:allowBackup="true" android:icon="#mipmap/ic_launcher" android:label="MY APP" android:supportsRtl="true" android:theme="#style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
simple pass the url to webView on button click then show inside your application. see below example.
On Button link pass the url to webview activity
Intent intent = new Intent(context, WebViewActivity.class);
intent.putExtra("URL", "https://www.google.co.in/");
startActivity(intent);
public class WebViewActivity extends Activity {
private WebView webView;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.webview);
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
String url = getIntent().getStringExtra("URL");
webView.loadUrl(url );
}
}