我有一个webview，我想在其中添加通过编辑文本字段更改主页的功能。像所有的浏览器一样，但来自其他活动（我希望在另一个活动中拥有此设置和所有其他设置）。有可能这样做吗？感谢
package com.example.app;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.webkit.CookieManager;
import android.webkit.DownloadListener;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebSettings.PluginState;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.EditText;
import android.widget.ProgressBar;
import android.widget.Toast;
import android.widget.ToggleButton;
public class MainActivity extends Activity {
private WebView webView;
private EditText urlEditText;
private ProgressBar progress;
private ToggleButton getToggleButton(int id) {
return (ToggleButton) findViewById(id);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getToggleButton(R.id.leave_toggle).setOnCheckedChangeListener(
new OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton toggleButton,
boolean isChecked) {
if (isChecked) {
webView.getSettings().setLoadsImagesAutomatically(
false);// Enable Image
// Loading
} else {
webView.getSettings().setLoadsImagesAutomatically(
true);// Enable Image
// Loading
}
}
});
urlEditText = (EditText) findViewById(R.id.urlField);
webView = (WebView) findViewById(R.id.webView);
webView.setWebChromeClient(new MyWebViewClient());
webView.setDownloadListener(new DownloadListener() {// Download Manager
public void onDownloadStart(String url, String userAgent,
String contentDisposition, String mimetype,
long contentLength) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
}
});
CookieManager.getInstance().setAcceptCookie(true);// Enable Cookies
webView.getSettings().setJavaScriptEnabled(true);// Enable Java Script
webView.setWebViewClient(new HelloWebViewClient());
webView.loadUrl("http://www.google.com/"); // Set
// Home
// page
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);// Remove
// ScrollBars
webView.getSettings().setDefaultFontSize(12);// Set Font Size
webView.getSettings().setPluginState(PluginState.ON);// Enable Flash
webView.setBackgroundColor(0x00000000);// Transparent Screen When
// Loading
webView.getSettings().setBuiltInZoomControls(true);// Set Zoom
// Controls
webView.requestFocus(View.FOCUS_DOWN);// Enable WebView Interaction
webView.getSettings().setAppCacheMaxSize(1024 * 1024 * 8);// Set Cache
// (8mb)
String appCachePath = getApplicationContext().getCacheDir()
.getAbsolutePath();// Set Cache (8mb)
webView.getSettings().setAppCachePath(appCachePath);// Set Cache (8mb)
webView.getSettings().setAllowFileAccess(true);// Set Cache (8mb)
webView.getSettings().setAppCacheEnabled(true);// Set Cache (8mb)
webView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);// Set
// Cache
// (8mb)
webView.setWebViewClient(new WebViewClient() {// Open URL on Error
@Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {// Open URL on Error
Intent intent = new Intent(MainActivity.this, Error.class);
startActivity(intent);
}
});
// ////8888888888888888**URL BAR AND PROGRESS
// BAR**888888888888888888888888888888888
progress = (ProgressBar) findViewById(R.id.progressBar);
progress.setMax(100);
Button openUrl = (Button) findViewById(R.id.goButton);
openUrl.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View view) {
String url = urlEditText.getText().toString();
if (url.endsWith(".ac") || url.endsWith(".ac.uk")
if (!url.startsWith("http://")
&& !url.startsWith("https://")) {
url = "http://" + url;
}
}
if (validateUrl(url)) {
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl(url);
MainActivity.this.progress.setProgress(10);
}
}
private boolean validateUrl(String url) {
return true;
}
});
}
private class MyWebViewClient extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
MainActivity.this.setValue(newProgress);
super.onProgressChanged(view, newProgress);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void setValue(int progress) {
this.progress.setProgress(progress);
}
// ////8888888888888888**URL BAR AND PROGRESS
// BAR**888888888888888888888888888888888
class HelloWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView webview, String url) {
webview.loadUrl(url);
return true;
}
}
public void forward(View view) { // Forward Button
Toast toast = Toast.makeText(this, "Forward", Toast.LENGTH_LONG);
toast.show();
webView.goForward();
}
public void back(View view) { // Back Button
Toast toast = Toast.makeText(this, "Back", Toast.LENGTH_LONG);
toast.show();
webView.goBack();
}
public void stop(View view) { // Stop Button
Toast toast = Toast.makeText(this, "Stop", Toast.LENGTH_LONG);
toast.show();
webView.stopLoading();
}
public void reload(View view) { // Reload Button
Toast toast = Toast.makeText(this, "Reloading..", Toast.LENGTH_LONG);
toast.show();
webView.reload();
}
// Tools navigation
public void database(View view) {
Intent intent = new Intent(this, Edt_Txt.class);
Toast toast = Toast.makeText(this, "Memory", Toast.LENGTH_LONG);
toast.show();
startActivity(intent);
}
public void mini(View view) {
Intent startMain = new Intent(Intent.ACTION_MAIN);
startMain.addCategory(Intent.CATEGORY_HOME);
startMain.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Toast toast = Toast.makeText(this, "Minimized", Toast.LENGTH_LONG);
toast.show();
startActivity(startMain);
}
public void json(View view) {
Intent intent = new Intent(this, JSON.class);
Toast toast = Toast.makeText(this, "Loading JSON (BETA)",
Toast.LENGTH_LONG);
toast.show();
startActivity(intent);
}
@Override
public void onBackPressed() {
new AlertDialog.Builder(this)
.setIcon(android.R.drawable.ic_dialog_alert)
.setTitle("Exit")
.setMessage("Are you sure you want to exit?")
.setPositiveButton("Yes",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
finish();
System.exit(0);
}
}).setNegativeButton("No", null).show();
}
}
答案 0 :(得分：0)
当您点击将默认网址设置为主页时，这是以下代码：
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
SharedPreferences.Editor editor = preferences.edit();
editor.putString("URL","http"//sample.com");
editor.apply();
当你将url设置为浏览器时，请执行以下操作：
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
String url= preferences.getString("URL","");
if(!name.equalsIgnoreCase(""))
{
//set url in broswer u will always get as last setted home page url
}