Question

我正在尝试创建一个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(); } }应用。我试图添加对清单的访问权限，但它没有改变任何东西。在相机工作的Chrome浏览器上，我无法理解我该怎么做。

1。这是清单：

PHP

2。主要活动

Intent i = new Intent(apples.this,Bacon.class);
final EditText applesInput = (EditText) findViewById(R.id.applesInput);
String userMessage = applesInput.getText().toString();
i.putExtra("applesMessage",userMessage);
startActivity(i);

我认为我不应该发布final TextView baconText = (TextView) findViewById(R.id.baconText); Bundle applesData = getIntent().getExtras(); if(applesData==null){ Toast.makeText(Bacon.this, "Love u", Toast.LENGTH_SHORT).show(); return; } String applesMessage = applesData.getString("applesMessage"); baconText.setText(applesMessage);文件，因为在Chrome浏览器页面上有效。它发生在这样：

您进入页面
Chrome浏览器会要求您授予相机权限
相机开始工作

Answer 1

修正了它。我不得不在代码中加入渗透：

        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);
        }
    }

但为了实现这一点，我还必须添加清单文件：

import android.Manifest;

相机允许不起作用的android webview

1 个答案: