我想在浏览器中打开外部Webview链接，所以请更新我的代码。实际上，问题是我的Web视图包含一些Google驱动器链接，因此我想在浏览器中打开所有外部链接，并且我在网络上对其进行了过多搜索，但是我找不到正确的解决方案。 我是android studio的新手，所以请帮助我。
package com.iaritoppers;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import com.google.android.material.snackbar.Snackbar;
import android.renderscript.Sampler;
import android.view.KeyEvent;
import android.view.View;
import androidx.appcompat.widget.AppCompatRatingBar;
import androidx.core.view.GravityCompat;
import androidx.appcompat.app.ActionBarDrawerToggle;
import android.view.MenuItem;
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;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class MainActivity extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
//initializing WebView
private WebView mwebView;
private WebView mWebviewPop;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
AppRater.app_launched(this);
mwebView = (WebView) findViewById(R.id.myWebView);
WebSettings webSettings = mwebView.getSettings();
webSettings.setJavaScriptEnabled(true);
webSettings.setAppCacheEnabled(true);
mwebView.loadUrl("https://www.iaritoppers.com/");
mwebView.setWebViewClient(new MyWebviewClient());
mwebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent shareintent =new Intent();
shareintent.setAction(Intent.ACTION_SEND);
shareintent.putExtra(Intent.EXTRA_TEXT , "abc");
shareintent.setType("text/plain");
startActivity(Intent.createChooser(shareintent,"Share Via"));
}
});
DrawerLayout drawer = findViewById(R.id.drawer_layout);
NavigationView navigationView = findViewById(R.id.nav_view);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
navigationView.setNavigationItemSelectedListener(this);
}
@Override
public void onBackPressed() {
DrawerLayout drawer = findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@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 onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_icar) {
mwebView.loadUrl("https://www.iaritoppers.com/p/icar-e-course-pdf.html");
return true;
}
if (id == R.id.action_share) {
Intent shareintent =new Intent();
shareintent.setAction(Intent.ACTION_SEND);
shareintent.putExtra(Intent.EXTRA_TEXT , "*I recommend you to download this very useful App For Agriculture Students -* ");
shareintent.setType("text/plain");
startActivity(Intent.createChooser(shareintent,"Share Via"));
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_home) {
Intent i = new Intent(MainActivity.this, MainActivity.class);
startActivity(i);
} else if (id == R.id.nav_icar) {
mwebView.loadUrl("https://www.iaritoppers.com/p/icar-e-course-pdf.html");
} else if (id == R.id.nav_agronomyicar) {
mwebView.loadUrl("https://www.iaritoppers.com/p/agronomy-icar-ecourse-pdf-books.html");
} else if (id == R.id.nav_hortiicar) {
mwebView.loadUrl("https://www.iaritoppers.com/p/horticulture-icar-ecourse-pdf-books.html");
} else if (id == R.id.nav_dairyicar) {
mwebView.loadUrl("https://www.iaritoppers.com/p/dairy-technology-icar-e-course-free-pdf.html");
} else if (id == R.id.nav_tnau) {
mwebView.loadUrl("https://www.iaritoppers.com/2019/06/tnau-notes-pdf-download-agri-study-material.html");
} else if (id == R.id.nav_angrau) {
mwebView.loadUrl("https://www.iaritoppers.com/2019/06/angrau-notes-download-angrau-study-material.html");
} else if (id == R.id.nav_syllabus) {
mwebView.loadUrl("https://www.iaritoppers.com/p/agriculture-exams-syllabus.html");
} else if (id == R.id.nav_jrfold) {
mwebView.loadUrl("https://www.iaritoppers.com/p/icar-jrf-old-papers.html");
} else if (id == R.id.nav_bhuold) {
mwebView.loadUrl("https://www.iaritoppers.com/p/bhu-old-paper-ug-and-pg.html");
} else if (id == R.id.nav_iariold) {
mwebView.loadUrl("https://www.iaritoppers.com/p/iari-old-question-papers-download-for.html");
} else if (id == R.id.nav_prepgold) {
mwebView.loadUrl("https://www.iaritoppers.com/2019/07/rajasthan-pre-pg-agriculture-old-question-paper.html");
} else if (id == R.id.nav_afoold) {
mwebView.loadUrl("https://www.iaritoppers.com/2019/06/ibps-afo-old-question-papers-pdf-download-for-agriculture-field-officer.html");
} else if (id == R.id.nav_agribook) {
mwebView.loadUrl("https://www.iaritoppers.com/p/best-agriculture-books-for-icar-jrf-srf.html");
} else if (id == R.id.nav_entrance) {
mwebView.loadUrl("https://www.iaritoppers.com/search/label/agriculture%20entrance%20exams");
} else if (id == R.id.nav_jobs) {
mwebView.loadUrl("https://www.iaritoppers.com/search/label/Latest%20agriculture%20jobs");
} else if (id == R.id.nav_discussion) {
mwebView.loadUrl("https://www.iaritoppers.com/p/discussion-desk_23.html");
} else if (id == R.id.nav_top) {
mwebView.loadUrl("https://www.iaritoppers.com/p/our-top-contributors.html");
} else if (id == R.id.nav_contact) {
mwebView.loadUrl("https://www.iaritoppers.com/p/about-us.html");
} else if (id == R.id.nav_share) {
Intent shareintent =new Intent();
shareintent.setAction(Intent.ACTION_SEND);
shareintent.putExtra(Intent.EXTRA_TEXT , "*I recommend you to download this very useful App For Agriculture Students -* ");
shareintent.setType("text/plain");
startActivity(Intent.createChooser(shareintent,"Share Via"));
}
DrawerLayout drawer = findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
private class MyWebviewClient extends WebViewClient {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
findViewById(R.id.progressBar2).setVisibility(View.VISIBLE);
}
@Override
public void onPageFinished(WebView view, String url) {
findViewById(R.id.progressBar2).setVisibility(View.GONE);
}
}
//goto previous page when pressing back button
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
if (mwebView.canGoBack()) {
mwebView.goBack();
} else
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Are you sure you want to exit?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
finish();
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
AlertDialog alert = builder.create();
alert.show();
}
return true;
}
}
return super.onKeyDown(keyCode, event);
}
}
答案 0 :(得分：1)
我建议使用chrome自定义标签。 这是指向docs
的链接但是，刚刚在这里粘贴了您需要的信息：
首先，将Chrome自定义标签添加到您的Gradle文件中
dependencies {
...
compile 'com.android.support:customtabs:23.3.0'
}
然后创建chrome自定义标签并显示它：
// Use a CustomTabsIntent.Builder to configure CustomTabsIntent.
// Once ready, call CustomTabsIntent.Builder.build() to create a CustomTabsIntent
// and launch the desired Url with CustomTabsIntent.launchUrl()
String url = ¨https://paul.kinlan.me/¨;
CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
CustomTabsIntent customTabsIntent = builder.build();
customTabsIntent.launchUrl(this, Uri.parse(url));