android - Android webview 摄像头和麦克风权限
问题描述
您好，虽然我已从 Android 授予摄像头和麦克风权限，但我的视频和语音在 webrtc 应用程序中不可见。当我退出应用程序并再次来到这个页面时，图像就会出现。当 Android 请求我的许可时，我希望我的视频和音频能够听到我的视频和音频，而无需打开和关闭应用程序，我该怎么办？
//我的代码
package com.mobile.evdekiokulum;
import android.Manifest;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.webkit.MimeTypeMap;
import android.webkit.PermissionRequest;
import android.app.AlertDialog;
import android.app.DownloadManager;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.net.ConnectivityManager;
import android.net.MailTo;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.app.Activity;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.os.Environment;
import android.os.Parcelable;
import android.provider.MediaStore;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.webkit.DownloadListener;
import android.webkit.URLUtil;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;
import androidx.viewpager.widget.ViewPager;
import com.karumi.dexter.Dexter;
import com.karumi.dexter.MultiplePermissionsReport;
import com.karumi.dexter.PermissionToken;
import com.karumi.dexter.listener.PermissionDeniedResponse;
import com.karumi.dexter.listener.PermissionGrantedResponse;
//import com.karumi.dexter.listener.PermissionRequest;
import com.karumi.dexter.listener.multi.MultiplePermissionsListener;
import com.karumi.dexter.listener.single.PermissionListener;
import java.io.File;
import java.io.IOException;
import java.net.CookieManager;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private WebView webView;
private CustomWebViewClient webViewClient;
private String Url = "https://development.evdekiokulum.com";
ProgressDialog mProgressDialog;
RelativeLayout relativeLayout;
Button btnNoInternetConnections;
public Context context;
private static final String TAG = MainActivity.class.getSimpleName();
private static final int FILECHOOSER_RESULTCODE = 1;
private ValueCallback<Uri> mUploadMessage;
private Uri mCapturedImageURI = null;
// the same for Android 5.0 methods only
private ValueCallback<Uri[]> mFilePathCallback;
private String mCameraPhotoPath;
ProgressBar progressBarWeb;
private String sURL,sFileName,sUser;
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR1)
@SuppressLint({"WrongViewCast", "SetJavaScriptEnabled"})
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mProgressDialog = new ProgressDialog(this);//ProgressDialog objesi oluşturuyoruz
mProgressDialog.setMessage("Yükleniyor...");//ProgressDialog Yükleniyor yazısı
btnNoInternetConnections = (Button) findViewById(R.id.noConnectionInternet);
relativeLayout = (RelativeLayout) findViewById(R.id.relativelayout);
webViewClient = new CustomWebViewClient();//CustomWebViewClient classdan webViewClient objesi oluşturuyoruz
webView = (WebView) findViewById(R.id.webview);//webview mızı xml anasayfa.xml deki webview bağlıyoruz
progressBarWeb = (ProgressBar) findViewById(R.id.progressBar);
if (savedInstanceState !=null){
webView.restoreState(savedInstanceState);
}
else {
webView.getSettings().setSupportZoom(true);
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setAllowFileAccess(true);
webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setMediaPlaybackRequiresUserGesture(false);
webView.setWebViewClient(webViewClient); //oluşturduğumuz webViewClient objesini webViewımıza set ediyoruz
checkConnections();
}
//webView.getSettings().setBuiltInZoomControls(true); //zoom yapılmasına izin verir
//Chrome WebClient Olayları
webView.setWebChromeClient(new WebChromeClient(){
public void onProgressChanged(WebView view, int progress)
{
progressBarWeb.setVisibility(View.VISIBLE);
progressBarWeb.setProgress(progress);
if (progress==100){
progressBarWeb.setVisibility(View.GONE);
}
//Make the bar disappear after URL is loaded, and changes string to Loading...
setTitle("Yükleniyor...");
setProgress(progress * 100); //Make the bar disappear after URL is loaded
// Return the app name after finish loading
if(progress == 100)
setTitle(R.string.app_name);
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@Override
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
public void onPermissionRequest(final PermissionRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
request.grant(request.getResources());
}
Dexter.withContext(MainActivity.this)
.withPermissions(
Manifest.permission.CAMERA,
Manifest.permission.RECORD_AUDIO
).withListener(new MultiplePermissionsListener() {
@Override
public void onPermissionsChecked(MultiplePermissionsReport multiplePermissionsReport) {
Toast.makeText(MainActivity.this, "Kamera ve Mikrofon izni alındı.Görüntünüz gelmiyorsa lütfen Sayfayı Yenileyiniz.", Toast.LENGTH_LONG).show();
}
@Override
public void onPermissionRationaleShouldBeShown(List<com.karumi.dexter.listener.PermissionRequest> list, PermissionToken permissionToken) {
Toast.makeText(MainActivity.this, "Kamera ve Mikrofon izni alınamadı.", Toast.LENGTH_SHORT).show();
}
}).check();
//webView.reload();
}
//Resim upload etme
// for Lollipop, all in one
public boolean onShowFileChooser(
WebView webView, ValueCallback<Uri[]> filePathCallback,
WebChromeClient.FileChooserParams fileChooserParams) {
if (mFilePathCallback != null) {
mFilePathCallback.onReceiveValue(null);
}
mFilePathCallback = filePathCallback;
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// create the file where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
takePictureIntent.putExtra("PhotoPath", mCameraPhotoPath);
} catch (IOException ex) {
// Error occurred while creating the File
Log.e(TAG, "Unable to create Image File", ex);
}
// continue only if the file was successfully created
if (photoFile != null) {
mCameraPhotoPath = "file:" + photoFile.getAbsolutePath();
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT,
Uri.fromFile(photoFile));
} else {
takePictureIntent = null;
}
}
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.setType("image/*");
Intent[] intentArray;
if (takePictureIntent != null) {
intentArray = new Intent[]{takePictureIntent};
} else {
intentArray = new Intent[0];
}
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, getString(R.string.image_chooser));
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
return true;
}
// creating image files (Lollipop only)
private File createImageFile() throws IOException {
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "DirectoryNameHere");
if (!imageStorageDir.exists()) {
imageStorageDir.mkdirs();
}
// create an image file name
imageStorageDir = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
return imageStorageDir;
}
// openFileChooser for Android 3.0+
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
mUploadMessage = uploadMsg;
try {
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "DirectoryNameHere");
if (!imageStorageDir.exists()) {
imageStorageDir.mkdirs();
}
File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
mCapturedImageURI = Uri.fromFile(file); // save to the private variable
final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, mCapturedImageURI);
// captureIntent.putExtra(MediaStore.EXTRA_SCREEN_ORIENTATION, ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
Intent chooserIntent = Intent.createChooser(i, getString(R.string.image_chooser));
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Parcelable[]{captureIntent});
startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
} catch (Exception e) {
Toast.makeText(getBaseContext(), "Camera Exception:" + e, Toast.LENGTH_LONG).show();
}
}
// openFileChooser for Android < 3.0
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
openFileChooser(uploadMsg, "");
}
// openFileChooser for other Android versions
/* may not work on KitKat due to lack of implementation of openFileChooser() or onShowFileChooser()
https://code.google.com/p/android/issues/detail?id=62220
however newer versions of KitKat fixed it on some devices */
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
openFileChooser(uploadMsg, acceptType);
}
});
//Resim upload etme
//Dosya indirme izinleri ve olayları
webView.setDownloadListener(new DownloadListener() {
@Override
public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long l) {
String filename =URLUtil.guessFileName(url,contentDisposition,getFileType(url));
sFileName = filename;
sURL = url;
sUser= userAgent;
if (Build.VERSION.SDK_INT>=Build.VERSION_CODES.M){
if (ContextCompat.checkSelfPermission(MainActivity.this,Manifest.permission.WRITE_EXTERNAL_STORAGE)==PackageManager.PERMISSION_GRANTED){
downloadFile(filename,url,userAgent);
}
else
{
requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}
,1001);
}
}
else {
downloadFile(filename,url,userAgent);
}
}
});
//Dosya indirme izinleri ve olayları
//webView.loadUrl(Url);
btnNoInternetConnections.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
checkConnections();
}
});
}
private void downloadFile(String filename,String url,String userAgent){
try {
DownloadManager downloadManager = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
String cookie = android.webkit.CookieManager.getInstance().getCookie(url);
request.setTitle(filename)
.setDescription("Dosya İndiriliyor...")
.addRequestHeader("cookie",cookie)
.addRequestHeader("User-Agent",userAgent)
.setMimeType(getFileType(url))
.setAllowedOverMetered(true)
.setAllowedOverRoaming(true)
.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE|DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
downloadManager.enqueue(request);
sURL="";
sUser = "";
sFileName="";
Toast.makeText(this,"Dosya İndiriliyor...",Toast.LENGTH_SHORT).show();
} catch (Exception ignored) {
Toast.makeText(this,"Hata"+ignored,Toast.LENGTH_SHORT).show();
}
}
public String getFileType(String url){
ContentResolver contentResolver = getContentResolver();
MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
return mimeTypeMap.getExtensionFromMimeType(contentResolver.getType(Uri.parse(url)));
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if (requestCode==1001){
if (grantResults.length>0&&grantResults[0]==PackageManager.PERMISSION_GRANTED){
if (!sURL.equals("")&&!sFileName.equals("")&&!sUser.equals("")){
downloadFile(sFileName,sURL,sUser);
}
}
}
}
private class CustomWebViewClient extends WebViewClient {
//Alttaki methodların hepsini kullanmak zorunda deilsiniz
//Hangisi işinize yarıyorsa onu kullanabilirsiniz.
/* @Override
public void onPageStarted(WebView view, String url, Bitmap favicon) { //Sayfa yüklenirken çalışır
super.onPageStarted(view, url, favicon);
if(!mProgressDialog.isShowing())//mProgressDialog açık mı kontrol ediliyor
{
mProgressDialog.show();//mProgressDialog açık değilse açılıyor yani gösteriliyor ve yükleniyor yazısı çıkıyor
}
}
*/
@Override
public void onPageFinished(WebView view, String url) {//sayfamız yüklendiğinde çalışıyor.
super.onPageFinished(view, url);
if(mProgressDialog.isShowing()){//mProgressDialog açık mı kontrol
mProgressDialog.dismiss();//mProgressDialog açıksa kapatılıyor
}
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.e("url adresi",url);
if (url.startsWith("intent://")) {
try {
Context context = view.getContext();
Intent intent = Intent.parseUri(url, Intent.URI_INTENT_SCHEME);
if (intent != null) {
view.stopLoading();
PackageManager packageManager = context.getPackageManager();
ResolveInfo info = packageManager.resolveActivity(intent, PackageManager.MATCH_DEFAULT_ONLY);
if (info==null){
Toast.makeText(getApplicationContext(), "Uygulama Bulunamadı. Lütfen Yükleyin.", Toast.LENGTH_LONG).show();
}
if (info != null) {
context.startActivity(intent);
} else {
String fallbackUrl = intent.getStringExtra("browser_fallback_url");
view.loadUrl(fallbackUrl);
// or call external broswer
// Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse(fallbackUrl));
// context.startActivity(browserIntent);
}
return true;
}
} catch (URISyntaxException e) {
Log.e("", String.valueOf(e));
}
}
return false;
}
// Bu method açılan sayfa içinden başka linklere tıklandığında açılmasına yarıyor.
//Bu methodu override etmez yada edip içini boş bırakırsanız ilk url den açılan sayfa dışında başka sayfaya geçiş yapamaz
//view.loadUrl(url);//yeni tıklanan url i açıyor
@Override
public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error ) {
checkConnections();
//BU method webview yüklenirken herhangi bir hatayla karşilaşilırsa hata kodu dönüyor.
//Dönen hata koduna göre kullanıcıyı bilgilendirebilir yada gerekli işlemleri yapabilirsiniz
//errorCode ile hatayı alabilirsiniz
// if(errorCode==-8){
// Timeout
// } şeklinde kullanabilirsiniz
//Hata Kodları aşağıdadır...
/*
* /** Generic error
public static final int ERROR_UNKNOWN = -1;
/** Server or proxy hostname lookup failed
public static final int ERROR_HOST_LOOKUP = -2;
/** Unsupported authentication scheme (not basic or digest)
public static final int ERROR_UNSUPPORTED_AUTH_SCHEME = -3;
/** User authentication failed on server
public static final int ERROR_AUTHENTICATION = -4;
/** User authentication failed on proxy
public static final int ERROR_PROXY_AUTHENTICATION = -5;
/** Failed to connect to the server
public static final int ERROR_CONNECT = -6;
/** Failed to read or write to the server
public static final int ERROR_IO = -7;
/** Connection timed out
public static final int ERROR_TIMEOUT = -8;
/** Too many redirects
public static final int ERROR_REDIRECT_LOOP = -9;
/** Unsupported URI scheme
public static final int ERROR_UNSUPPORTED_SCHEME = -10;
/** Failed to perform SSL handshake
public static final int ERROR_FAILED_SSL_HANDSHAKE = -11;
/** Malformed URL
public static final int ERROR_BAD_URL = -12;
/** Generic file error
public static final int ERROR_FILE = -13;
/** File not found
public static final int ERROR_FILE_NOT_FOUND = -14;
/** Too many requests during this load
public static final int ERROR_TOO_MANY_REQUESTS = -15;
*/
}
}
// return here when file selected from camera or from SD Card
//Resim upload etme
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
// code for all versions except of Lollipop
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == this.mUploadMessage) {
return;
}
Uri result = null;
try {
if (resultCode != RESULT_OK) {
result = null;
} else {
// retrieve from the private variable if the intent is null
result = data == null ? mCapturedImageURI : data.getData();
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(), "activity :" + e, Toast.LENGTH_LONG).show();
}
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
} // end of code for all versions except of Lollipop
// start of code for Lollipop only
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
if (requestCode != FILECHOOSER_RESULTCODE || mFilePathCallback == null) {
super.onActivityResult(requestCode, resultCode, data);
return;
}
Uri[] results = null;
// check that the response is a good one
if (resultCode == Activity.RESULT_OK) {
if (data == null || data.getData() == null) {
// if there is not data, then we may have taken a photo
if (mCameraPhotoPath != null) {
results = new Uri[]{Uri.parse(mCameraPhotoPath)};
}
} else {
String dataString = data.getDataString();
if (dataString != null) {
results = new Uri[]{Uri.parse(dataString)};
}
}
}
mFilePathCallback.onReceiveValue(results);
mFilePathCallback = null;
} // end of code for Lollipop only
}
//Resim upload etme
public void onBackPressed() //Android Back Buttonunu Handle ettik. Back butonu bir önceki sayfaya geri dönecek
{
if(webView.canGoBack()){//eğer varsa bir önceki sayfaya gidecek
Toast.makeText(getApplicationContext(),"Geriye Gidiliyor...",Toast.LENGTH_LONG).show();
webView.goBack();
}
else{
AlertDialog.Builder buider = new AlertDialog.Builder(this);
buider.setMessage("Çıkmak için eminmisiniz?")
.setNegativeButton("Hayır",null)
.setPositiveButton("Evet", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialogInterface, int i) {
finishAffinity();
}
}).show();
//Toast.makeText(getApplicationContext(),"Sayfanın Sonundasınız...",Toast.LENGTH_LONG).show();
//super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.toolbar_menu,menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(@NonNull MenuItem item) {
switch(item.getItemId()){
case R.id.nav_pre:
onBackPressed();
break;
case R.id.nav_next:
if(webView.canGoForward()){
Toast.makeText(getApplicationContext(),"İleriye Gidiliyor...",Toast.LENGTH_LONG).show();
webView.goForward();
}
break;
case R.id.nav_reload:
Toast.makeText(getApplicationContext(),"Sayfa Yenileniyor...",Toast.LENGTH_LONG).show();
webView.reload();
break;
}
return super.onOptionsItemSelected(item);
}
public void checkConnections(){
ConnectivityManager connectivityManager = (ConnectivityManager)
this.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo wifi = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
NetworkInfo mobileNetwork = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
if (wifi.isConnected()){
webView.loadUrl(Url);
webView.setVisibility(View.VISIBLE);
relativeLayout.setVisibility(View.GONE);
}
else if (mobileNetwork.isConnected()){
webView.loadUrl(Url);
webView.setVisibility(View.VISIBLE);
relativeLayout.setVisibility(View.GONE);
}
else if (connectivityManager.getActiveNetworkInfo()==null){
webView.setVisibility(View.GONE);
relativeLayout.setVisibility(View.VISIBLE);
}
}
@Override
protected void onSaveInstanceState(@NonNull Bundle outState) {
super.onSaveInstanceState(outState);
webView.saveState(outState);
}
}
解决方案
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