こんにちは、向きを変更してアプリケーションを再起動し、最初からページを表示すると、Android Webviewの向きの問題に直面しています。私は別の回答を読んでいますが、ここでコードを提供している理由を解決する解決策はありません。親切に Android 開発者が私を助けて、コードを編集した場所や何かを追加した場所を教えてください
package com.example.edarabia;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.view.KeyEvent;
import android.webkit.WebView;
import android.webkit.WebViewClient;
@SuppressLint("SetJavaScriptEnabled")
public class MainActivity extends Activity{
WebView mywebview;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(isNetworkConnected() == true){
setContentView(R.layout.activity_main);
mywebview = (WebView) findViewById(R.id.webview);
mywebview.getSettings().setJavaScriptEnabled(true);
mywebview.setWebViewClient(new myWebClient());
mywebview.loadUrl("http://www.grafdom.com/operations/projects/ma/edarabiaapp/");
mywebview.getSettings().setBuiltInZoomControls(true);
mywebview.getSettings().setLoadWithOverviewMode(false);
mywebview.getSettings().setUseWideViewPort(false);
}else{
setContentView(R.layout.splash);
showBuyDialog();
}
}
// @Override
// public boolean onKeyDown(int keyCode, KeyEvent event) {
// Check if the key event was the Back button and if there's history
// if ((keyCode == KeyEvent.KEYCODE_BACK) && mywebview.canGoBack()) {
// mywebview.goBack();
// return true;
// }
// return super.onKeyDown(keyCode, event);
// }
// To handle "Back" key press event for WebView to go back to previous screen.
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if ((keyCode == KeyEvent.KEYCODE_BACK) && mywebview.canGoBack()) {
mywebview.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public void onBackPressed() {
finish();
}
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;
}
}
//// This method will retun boolean value if net conect then value will be true otherwise false
private boolean isNetworkConnected() {
ConnectivityManager connectivity = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
return false;
}
public void showBuyDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
builder.setTitle("Unable to connect");
builder.setMessage("You Must have an Internet connection to use Edarabia. Please connect and try again.");
builder.setCancelable(false);
builder.setNegativeButton("Close", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
finish();
}
});
builder.show();
}
}