我正在尝试创建一个webview
应用程序。我尝试添加对 list 的访问权限,但它没有改变任何内容。在 chrome 浏览器上相机可以工作,我不明白我应该做什么。
<强>1。这是 list :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="i.astiapp.astiappadmindev">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" android:required="true" />
<uses-feature android:name="android.hardware.camera.front" android:required="true" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_INTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_INTERNAL_STORAGE" />
<!-- My Location -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity
android:screenOrientation="portrait"
android:name=".MainActivity">
</activity>
<activity
android:hardwareAccelerated="true"
android:name=".SplashActivity"
android:screenOrientation="portrait"
android:theme="@style/SplashTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" /></intent-filter>
</activity>
</application>
</manifest>
<强>2。主要 Activity
import android.graphics.Bitmap;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.webkit.PermissionRequest;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;
public class MainActivity extends AppCompatActivity implements MyWebChromeClient.ProgressListener{
private ProgressBar chromeProgressBar;
WebView myWebView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myWebView = (WebView) findViewById(R.id.webview);
//chromeProgressBar = (ProgressBar) findViewById(R.id.progressBarChrome);
//Settings
WebSettings webSettings = myWebView.getSettings();
myWebView.getSettings().setTextSize(WebSettings.TextSize.NORMAL);
webSettings.setJavaScriptEnabled(true);
webSettings.setDomStorageEnabled(true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
webSettings.setAllowUniversalAccessFromFileURLs(true);
webSettings.setAllowFileAccessFromFileURLs(true);
}
webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
webSettings.setAllowFileAccess(true);
//webSettings.setLoadsImagesAutomatically(true);
//inizialize client
//load website by URL
myWebView.loadUrl("https://www.voyage-app.eu/asti-app/admin/index.php");
//register token for notification
// this.onStart();
chromeProgressBar = (ProgressBar) findViewById(R.id.progressBar);
myWebView.setWebChromeClient(new WebChromeClient() {
// Grant permissions for cam
@Override
public void onPermissionRequest(final PermissionRequest request) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
request.grant(request.getResources());
}
}
});
myWebView.setWebViewClient(new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
chromeProgressBar.setVisibility(View.VISIBLE);
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
chromeProgressBar.setVisibility(View.GONE);
}
});
}
@Override
public void onUpdateProgress(int progressValue) {
chromeProgressBar.setProgress(progressValue);
if (progressValue == 100) {
chromeProgressBar.setVisibility(View.INVISIBLE);
}
}
public class WebViewController extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
@Override
public void onBackPressed()
{
if(myWebView.canGoBack())
myWebView.goBack();
else
super.onBackPressed();
}
}
我认为我不应该发布 PHP
文件,因为该页面可以在 Chrome 浏览器上运行。事情是这样发生的:
- 您进入该页面
- Chrome 浏览器要求您授予使用摄像头的权限
- 相机开始工作
最佳答案
已修复。我必须将权限添加到代码中:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
int hasCameraPermission = checkSelfPermission(Manifest.permission.CAMERA);
List<String> permissions = new ArrayList<String>();
if (hasCameraPermission != PackageManager.PERMISSION_GRANTED) {
permissions.add(Manifest.permission.CAMERA);
}
if (!permissions.isEmpty()) {
requestPermissions(permissions.toArray(new String[permissions.size()]), 111);
}
}
但为了使其工作,我还必须添加 list 文件:
import android.Manifest;
关于java - 相机允许不起作用 android webview,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/48268467/