[英]Android: WebView app crashes after 3 seconds of showing Splash screen
[英]Webview app turns off after Splash Screen Android Studio
我正在创建一个 Webview 应用程序,我需要在加载时添加启动画面。 我尝试了不同的方法,这样它就“开始”了,但是在启动画面之后它就关闭了。 我该怎么做才能使应用程序显示启动画面并正确打开?
SplashScreen.java:
package com.example.evrika;
import androidx.appcompat.app.AppCompatActivity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
public class SplashScreen extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash_screen);
Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
startActivity(new Intent(SplashScreen.this,MainActivity.class));
finish();
}
},1000);
}
}
活动_main.xml:
<?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"
tools:context=".MainActivity">
<WebView
android:id="@+id/webView"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
</androidx.constraintlayout.widget.ConstraintLayout>
主活动.java:
package com.example.evrika;
import androidx.appcompat.app.AppCompatActivity;
import android.annotation.TargetApi;
import android.os.Build;
import android.os.Bundle;
import android.webkit.WebResourceRequest;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getSupportActionBar().hide();
WebView webView = findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setBuiltInZoomControls(false);
webView.getSettings().setSupportZoom(false);
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK);
webView.loadUrl("https://evrikaspace.ru/");
WebViewClient webViewClient = new WebViewClient() {
@SuppressWarnings("deprecation") @Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
@TargetApi(Build.VERSION_CODES.N) @Override
public boolean shouldOverrideUrlLoading(WebView view, WebResourceRequest request) {
view.loadUrl(request.getUrl().toString());
return true;
}
};
webView.setWebViewClient(webViewClient);
}
}
可能这条线正在制造噪音getSupportActionBar().hide();
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