我有这个代码，但不是因为它有效，它在webview中保持打开，我想要的是链接不属于我的网站在默认浏览器中打开。有什么想法吗？
有人可以告诉我它是否可能以及如何做到这一点？非常感谢你！
package com.example.webviewapp;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DownloadManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.view.Gravity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.webkit.JsPromptResult;
import android.webkit.JsResult;
import android.webkit.MimeTypeMap;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings.PluginState;
import android.webkit.WebSettings.RenderPriority;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.VideoView;
import com.google.ads.AdRequest;
import com.google.ads.AdSize;
import com.google.ads.AdView;
public class MainActivity extends Activity {
private WebView mainWebView;
private String HomeUrl, AppName, ShareUrl, AD_ID, sdrUrl, ext;
private VideoView mVideoView;
private RelativeLayout mContentView;
private FrameLayout mCustomViewContainer;
private WebChromeClient.CustomViewCallback mCustomViewCallback;
private AdView adView;
Integer vidPosition;
ProgressBar progressBar;
@SuppressWarnings("deprecation")
@SuppressLint({"CutPasteId","NewApi", "SetJavaScriptEnabled"})
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// ========================Create adView
AD_ID = getString(R.string.admob_publisher_id);
adView = new AdView(this, AdSize.BANNER, AD_ID);
/* // Dynamic add LinearLayout
// android:id="@+id/adLayout"
LinearLayout layout = (LinearLayout)findViewById(R.id.adLayout);
// Add adView
layout.addView(adView);*/
// Initiate a generic request to load it with an ad
adView.loadAd(new AdRequest());
//========================== home url
HomeUrl = getString(R.string.base_url);
//First share link
ShareUrl = HomeUrl;
// App name url
AppName = getString(R.string.app_name);
//Find objects with ID
mainWebView = (WebView) findViewById(R.id.webView1);
progressBar = (ProgressBar)findViewById(R.id.progressBar1);
// focus with touch
mainWebView.setFocusable(true);
mainWebView.setFocusableInTouchMode(true);
mainWebView.requestFocus(View.FOCUS_DOWN|View.FOCUS_UP);
mainWebView.getSettings().setLightTouchEnabled(true);
// enabled Java Script
mainWebView.getSettings().setJavaScriptEnabled(true);
mainWebView.getSettings().setPluginState(PluginState.ON_DEMAND);
mainWebView.getSettings().setDomStorageEnabled(true);
//mainWebView.getSettings().setUseWideViewPort(true);
//Customaze Web View
mainWebView.setWebViewClient(new MyCustomWebViewClient());
mainWebView.setWebChromeClient(new MyChromeClient());
//Webview scroll
mainWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
//Cache enable
mainWebView.getSettings().setAppCacheEnabled(true);
mainWebView.getSettings().setRenderPriority(RenderPriority.HIGH);
// Load Home url
mainWebView.loadUrl(HomeUrl);
mainWebView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
case MotionEvent.ACTION_UP:
if (!v.hasFocus()) {
v.requestFocus();
v.requestFocusFromTouch();
}
break;
}
return false;
}
});
Bundle extras = getIntent().getExtras();
if (extras != null) {
String value = extras.getString("url");
//mainWebView.getSettings().setUseWideViewPort(true);
mainWebView.loadUrl(value);
}
// Menu category
TextView text1= (TextView) findViewById(R.id.title_bar_home);
text1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
mainWebView.loadUrl(HomeUrl);
}
});
// Menu category
TextView text2= (TextView) findViewById(R.id.title_bar_share);
text2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TEXT, ShareUrl);
intent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Interesting for you!");
startActivity(Intent.createChooser(intent, "Share via"));
}
});
}
private class MyCustomWebViewClient extends WebViewClient {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
// On load Spinner visible
progressBar.setVisibility(View.VISIBLE);
view.setVisibility(View.GONE);
}
//@SuppressWarnings("deprecation")
@Override
public void onPageFinished(WebView view, String url) {
// TODO Auto-generated method stub
super.onPageFinished(view, url);
// On load Spinner hide
progressBar.setVisibility(View.GONE);
view.setVisibility(View.VISIBLE);
}
@SuppressLint("NewApi")
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
//share page or link
ShareUrl = url;
// One touch call link <a href="tel:777777777">Call</a>
if (url.startsWith("tel:"))
{
Intent intent = new Intent(Intent.ACTION_DIAL,
Uri.parse(url));
startActivity(intent);
}
else
// One touch sms link <a href="sms:1717171717">Sms</a>
if (url.startsWith("sms:"))
{
Intent message = new Intent(Intent.ACTION_SENDTO,
Uri.parse(url));
startActivity(message);
}
// One share text or url link <a href="share:share text">share text</a>
else
if (url.startsWith("share:"))
{
String[] share_link = url.split(":");
try {
String ID= URLDecoder.decode(share_link[1], "UTF-8");
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_TEXT, "http://www.youtube.com/watch?v="+ID);
intent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Interesting for you!");
startActivity(Intent.createChooser(intent, "Share via"));
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// One touch image link <a href="test.jpg">Image</a>
else
if(url.endsWith(".jpg") || url.endsWith(".png") || url.endsWith(".gif") || url.endsWith(".JPG") || url.endsWith(".jpeg") )
{
Intent intent=new Intent (MainActivity.this, Image.class);
intent.putExtra("href", url);
startActivity(intent);
}
else
// else if it's a 3GP file link
if(url.endsWith(".3gp")){
Uri uri = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "video/3gp");
startActivity(intent);
return true;
}
else
//Link mp4 file <a href="http://mosaicdesign.uz/test.mp4">Download mp4</a>
if(url.endsWith(".mp4")){
if(url.startsWith("download")){
String[] download_link = url.split(":");
try {
//<a href="download:http://mosaicdesign.uz/test.mp4">Download mp4</a>
sdrUrl= URLDecoder.decode(download_link[1], "UTF-8")+":"+URLDecoder.decode(download_link[2], "UTF-8");
ext = MimeTypeMap.getFileExtensionFromUrl(sdrUrl);
if (ext != null) {
MimeTypeMap mime = MimeTypeMap.getSingleton();
String mimeType = mime.getMimeTypeFromExtension(ext);
if (mimeType != null) {
if (ext.toLowerCase().contains("mp4")) {
DownloadManager mdDownloadManager = (DownloadManager) MainActivity.this
.getSystemService(Context.DOWNLOAD_SERVICE);
DownloadManager.Request request = new DownloadManager.Request(
Uri.parse(sdrUrl));
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE);
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);
request.setAllowedOverRoaming(true);
File destinationFile = new File(
Environment.getExternalStorageDirectory(),
getFileName(sdrUrl, ext));
request.setDestinationUri(Uri.fromFile(destinationFile));
mdDownloadManager.enqueue(request);
}
}
}
return true;
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else
{
Uri uri = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "video/mp4");
startActivity(intent);
return true;
}
}
else
//Open MP3 file <a href="http://mosaicdesign.uz/test.mp3">Download mp3</a>
if(url.endsWith(".mp3") || url.endsWith(".MP3")){
// Download files
if(url.startsWith("download")){
String[] download_link = url.split(":");
try {
//<a href="download:http://mosaicdesign.uz/test.mp3">Download mp3</a>
sdrUrl= URLDecoder.decode(download_link[1], "UTF-8")+":"+URLDecoder.decode(download_link[2], "UTF-8");
//ext=url.substring(url.lastIndexOf("."));
ext = MimeTypeMap.getFileExtensionFromUrl(sdrUrl);
if (ext != null) {
MimeTypeMap mime = MimeTypeMap.getSingleton();
String mimeType = mime.getMimeTypeFromExtension(ext);
if (mimeType != null) {
if (ext.toLowerCase().contains("mp3")) {
DownloadManager mdDownloadManager = (DownloadManager) MainActivity.this
.getSystemService(Context.DOWNLOAD_SERVICE);
DownloadManager.Request request = new DownloadManager.Request(
Uri.parse(sdrUrl));
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE);
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);
request.setAllowedOverRoaming(true);
File destinationFile = new File(
Environment.getExternalStorageDirectory(),
getFileName(sdrUrl, ext));
request.setDestinationUri(Uri.fromFile(destinationFile));
mdDownloadManager.enqueue(request);
}
}
}
return true;
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else
{
Uri uri = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(uri, "audio/mp3");
startActivity(intent);
return true;
}
}
//View file < a href="www.text.com/test.txt"> View text</a>
if (
url.endsWith(".pdf")
|| url.endsWith(".txt")
|| url.endsWith(".doc")
|| url.endsWith(".docx")
|| url.endsWith(".xls")
|| url.endsWith(".xlsx")
|| url.endsWith(".ppt")
|| url.endsWith(".pptx")
|| url.endsWith(".pages")
|| url.endsWith(".ai")
|| url.endsWith(".psd")
|| url.endsWith(".tiff")
|| url.endsWith(".dxf")
|| url.endsWith(".svg")
|| url.endsWith(".eps")
|| url.endsWith(".ps")
|| url.endsWith(".ttf")
|| url.endsWith(".xps")
|| url.endsWith(".zip")
|| url.endsWith(".rar")
)
{
if(url.startsWith("download")){
String[] download_link = url.split(":");
try {
sdrUrl= URLDecoder.decode(download_link[1], "UTF-8")+":"+URLDecoder.decode(download_link[2], "UTF-8");
ext = MimeTypeMap.getFileExtensionFromUrl(sdrUrl);
if (ext != null) {
MimeTypeMap mime = MimeTypeMap.getSingleton();
String mimeType = mime.getMimeTypeFromExtension(ext);
if (mimeType != null) {
DownloadManager mdDownloadManager = (DownloadManager) MainActivity.this
.getSystemService(Context.DOWNLOAD_SERVICE);
DownloadManager.Request request = new DownloadManager.Request(
Uri.parse(sdrUrl));
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_MOBILE);
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);
request.setAllowedOverRoaming(true);
File destinationFile = new File(
Environment.getExternalStorageDirectory(),
getFileName(sdrUrl, ext));
request.setDestinationUri(Uri.fromFile(destinationFile));
mdDownloadManager.enqueue(request);
}
}
return true;
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
else
{
String googleDocs = "https://docs.google.com/viewer?url=";
mainWebView.loadUrl(googleDocs + url);
return true;
}
}
else
if(url.startsWith("http:") || url.startsWith("https:")) {view.loadUrl(url); }
return true;
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
view.loadUrl("file:///android_asset/error.html");
}
}
private class MyChromeClient extends WebChromeClient implements OnCompletionListener, OnErrorListener {
FrameLayout.LayoutParams COVER_SCREEN_GRAVITY_CENTER = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.WRAP_CONTENT,
ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER);
@Override
public void onShowCustomView(View view, int requestedOrientation,
WebChromeClient.CustomViewCallback callback) // Available in API level 14+, deprecated in API level 18+
{
onShowCustomView(view, callback);
if(Build.VERSION.SDK_INT >=14) {
if (view instanceof FrameLayout) {
mainWebView.addView(view, new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT,
Gravity.CENTER));
mainWebView.setVisibility(View.VISIBLE);
}
}
}
@Override
public void onShowCustomView(View view, WebChromeClient.CustomViewCallback callback) {
if (view instanceof FrameLayout) {
// mainWebView is the view that the video should've played inside.
mainWebView = (WebView)findViewById(R.id.webView1);
mCustomViewContainer = (FrameLayout) view;
mCustomViewCallback = callback;
// mainLayout is the root layout that (ex. the layout that contains the webview)
mContentView = (RelativeLayout)findViewById(R.id.RootLayout);
if (mCustomViewContainer.getFocusedChild() instanceof VideoView) {
mVideoView = (VideoView) mCustomViewContainer.getFocusedChild();
// frame.removeView(video);
mContentView.setVisibility(View.GONE);
mCustomViewContainer.setVisibility(View.VISIBLE);
setContentView(mCustomViewContainer);
mVideoView.setOnCompletionListener((OnCompletionListener) this);
mVideoView.setOnErrorListener((OnErrorListener) this);
mVideoView.start();
}
}
}
public void onHideCustomView() {
if (mVideoView == null){
return;
}else{
// Hide the custom view.
mVideoView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mVideoView);
mVideoView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
mContentView.setVisibility(View.VISIBLE);
}
}
public void onCompletion(MediaPlayer mp) {
mp.stop();
mCustomViewContainer.setVisibility(View.GONE);
onHideCustomView();
setContentView(mContentView);
}
@SuppressWarnings("unused")
public void onPrepared(MediaPlayer mp) {
mCustomViewCallback.onCustomViewHidden();
}
public boolean onError(MediaPlayer arg0, int arg1, int arg2) {
setContentView(mContentView);
return true;
}
//Java script alert dialog
@Override
public boolean onJsAlert(WebView view, String url, String message,
final JsResult result) {
new AlertDialog.Builder(MainActivity.this)
.setTitle("Attention !")
.setMessage(message)
.setPositiveButton(R.string.ok,
new AlertDialog.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// do your stuff here
result.confirm();
}
}).setCancelable(false).create().show();
return true;
}
//Java script confirm dialog
@Override
public boolean onJsConfirm(WebView view, String url, String message,
final JsResult result) {
new AlertDialog.Builder(MainActivity.this)
.setTitle("Confirm !")
.setMessage(message)
.setPositiveButton(R.string.ok,
new AlertDialog.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// do your stuff here
result.confirm();
}
}).setCancelable(false).create().show();
return true;
}
//Java script Prompt dialog
@Override
public boolean onJsPrompt(WebView view, String url, String message,
String defaultValue, final JsPromptResult result) {
new AlertDialog.Builder(MainActivity.this)
.setTitle("Prompt Alert !")
.setMessage(message)
.setPositiveButton(R.string.ok,
new AlertDialog.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// do your stuff here
result.confirm();
}
}).setCancelable(false).create().show();
return true;
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.mainmenu, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_rate:
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse("market://details?id=" + getPackageName()));
startActivity(i);
break;
case R.id.action_refresh:
mainWebView.loadUrl( "javascript:window.location.reload( true )" );
break;
case R.id.action_exit:
finish();
break;
default:
break;
}
return true;
}
@Override
protected void onPause() {
if(mCustomViewContainer != null){
vidPosition = mVideoView.getCurrentPosition();
}
super.onPause();
}
@Override
protected void onResume() {
if(mCustomViewContainer != null){
mVideoView.seekTo(vidPosition);
}
super.onResume();
}
@Override
public void onBackPressed() {
if(mCustomViewContainer != null){
mVideoView.stopPlayback();
mCustomViewContainer.setVisibility(View.GONE);
if (mVideoView == null){
return;
}else{
// Hide the custom view.
mVideoView.setVisibility(View.GONE);
// Remove the custom view from its container.
mCustomViewContainer.removeView(mVideoView);
mVideoView = null;
mCustomViewContainer.setVisibility(View.GONE);
mCustomViewCallback.onCustomViewHidden();
// Show the content view.
mContentView.setVisibility(View.VISIBLE);
setContentView(mContentView);
mCustomViewContainer = null;
}
}else if(mainWebView.canGoBack()){
mainWebView.goBack();
}else{
super.onBackPressed();
}
}
public String getFileName(String url, String ext1) {
String filenameWithoutExtension = "";
filenameWithoutExtension = String.valueOf(System.currentTimeMillis()+"."+ext1);
return filenameWithoutExtension;
}
}
答案 0 :(得分：0)
没有内置＆＃34; Popup＆＃34; Android中的课程。所以这取决于你需要什么来自＆＃34; Popup＆＃34;。你可以使用对话框here。或者您可以动态创建WebView并将其添加到某个容器中（例如RelativeLayout）。
答案 1 :(得分：0)
意图是要执行的操作的抽象描述。要打开URL /网站，请执行以下操作：
String url = "http://www.stackexchange.com";
Intent browserIntent = new Intent(Intent.ACTION_VIEW);
browserIntent.setData(Uri.parse(url));
startActivity(browserIntent);