public class MainActivity extends AppCompatActivity {
private WebView webView;
private boolean videoFlag = false;
private final static String TAG = "villa";
private ValueCallback<Uri> mUploadMessage;
private ValueCallback<Uri[]> mUploadCallbackAboveL;
private final static int PHOTO_REQUEST = 100;
private final static int VIDEO_REQUEST = 120;
private String mAcceptType;
private Uri imageUri;
private final int OPEN_RESULT = 1; // 打开相机
private final int PICK_RESULT = 2; // 查看相册
private final int OPEN_RESULT2 = 3; // 打开相机2
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//实例化WebView对象
webView = new WebView(this);
//设置WebView属性，能够执行Javascript脚本
webView.getSettings().setJavaScriptEnabled(true);
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());
builder.detectFileUriExposure();
initWebView();
//加载需要显示的网页
//webview.loadUrl("file:///android_asset/index.html");//显示本地网页
webView.loadUrl("http://1j4572h972.iok.la:27446/bdcWX/pages/apphtml/csxhtml/index.html");//显示远程网页
//设置Web视图
setContentView(webView);
}
/**
* 初始化WebView
*/
private void initWebView() {
//不跳转到其他浏览器
webView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
@Override
public void onReceivedHttpError(WebView view, WebResourceRequest request, WebResourceResponse errorResponse) {
super.onReceivedHttpError(view, request, errorResponse);
int statusCode = errorResponse.getStatusCode();
if (404 == statusCode || 500 == statusCode) {
// view.loadUrl("about:blank");// 避免出现默认的错误界面
view.loadUrl("http://1j4572h972.iok.la:27446/bdcWX/pages/apphtml/csxhtml/index.html");// 重新加载网页（如果失败的话）
}
}
});
WebSettings settings = webView.getSettings();
settings.setUseWideViewPort(true);
settings.setLoadWithOverviewMode(true);
settings.setDomStorageEnabled(true);
settings.setDefaultTextEncodingName("UTF-8");
settings.setAllowContentAccess(true); // 是否可访问Content Provider的资源，默认值 true
settings.setAllowFileAccess(true); // 是否可访问本地文件，默认值 true
// 是否允许通过file url加载的Javascript读取本地文件，默认值 false
settings.setAllowFileAccessFromFileURLs(false);
// 是否允许通过file url加载的Javascript读取全部资源(包括文件,http,https)，默认值 false
settings.setAllowUniversalAccessFromFileURLs(false);
//开启JavaScript支持
settings.setJavaScriptEnabled(true);
// 支持缩放
settings.setSupportZoom(true);
//辅助WebView设置处理关于页面跳转，页面请求等操作
webView.setWebViewClient(new MyWebViewClient());
//辅助WebView处理图片上传操作
webView.setWebChromeClient(new MyChromeWebClient());
//加载地址
/* final JavaScriptInterface myJavaScriptInterface
= new JavaScriptInterface(this);*/
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
webView.getSettings().setLightTouchEnabled(true);
webView.getSettings().setJavaScriptEnabled(true);
webView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
// 打开照相机,设置请求码
startActivityForResult(intent, OPEN_RESULT2);
}
});
WebView.setWebContentsDebuggingEnabled(true);
webView.addJavascriptInterface(new JavascriptInterface[]{}, "AndroidFunction");
webView.getSettings().setDefaultTextEncodingName("utf-8");
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
webView.loadUrl("http://1j4572h972.iok.la:27446/bdcWX/pages/apphtml/csxhtml/index.html");
}
//自定义 WebViewClient 辅助WebView设置处理关于页面跳转，页面请求等操作【处理tel协议和视频通讯请求url的拦截转发】
private class MyWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Logger.getLogger(url);
if (!TextUtils.isEmpty(url)) {
videoFlag = url.contains("vedio");
}
if (url.trim().startsWith("tel")) {//特殊情况tel，调用系统的拨号软件拨号【<a href="tel:1111111111">1111111111</a>】
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
} else {
String port = url.substring(url.lastIndexOf(":") + 1, url.lastIndexOf("/"));//尝试要拦截的视频通讯url格式(808端口)：【http://xxxx:808/?roomName】
if (port.equals("808")) {//特殊情况【若打开的链接是视频通讯地址格式则调用系统浏览器打开】
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(url));
startActivity(i);
} else {//其它非特殊情况全部放行
view.loadUrl(url);
}
}
return true;
}
}
private class MyChromeWebClient extends WebChromeClient{
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
Log.d(TAG, "openFileChoose(ValueCallback<Uri> uploadMsg)");
mUploadMessage = uploadMsg;
if (videoFlag) {
recordVideo();
} else {
takePhoto();
}
}
// For Android 3.0+
public void openFileChooser(ValueCallback uploadMsg, String acceptType) {
Log.d(TAG, "openFileChoose( ValueCallback uploadMsg, String acceptType )");
mUploadMessage = uploadMsg;
if (videoFlag) {
recordVideo();
} else {
takePhoto();
}
}
//For Android 4.1
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
Log.d(TAG, "openFileChoose(ValueCallback<Uri> uploadMsg, String acceptType, String capture)");
mUploadMessage = uploadMsg;
if (videoFlag) {
recordVideo();
} else {
takePhoto();
}
}
// For Android 5.0+
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {
Log.d(TAG, "onShowFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture)");
mUploadCallbackAboveL = filePathCallback;
if (videoFlag) {
recordVideo();
} else {
takePhoto();
}
return true;
}
/**
* 录像
*/
private void recordVideo() {
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1);
//限制时长
intent.putExtra(MediaStore.EXTRA_DURATION_LIMIT, 10);
//开启摄像机
startActivityForResult(intent, VIDEO_REQUEST);
}
private void takePhoto() {
File fileUri = new File(Environment.getExternalStorageDirectory().getPath() + "/" + SystemClock.currentThreadTimeMillis() + ".jpg");
imageUri = Uri.fromFile(fileUri);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
imageUri = FileProvider.getUriForFile(MainActivity.this, getPackageName() + ".fileprovider", fileUri);//通过FileProvider创建一个content类型的Uri
}
PhotoUtils.takePicture(MainActivity.this, imageUri, PHOTO_REQUEST);
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
//如果按下的是回退键且历史记录里确实还有页面
if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
webView.goBack();
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == PHOTO_REQUEST) {
if (null == mUploadMessage && null == mUploadCallbackAboveL) return;
Uri result = data == null || resultCode != RESULT_OK ? null : data.getData();
if (mUploadCallbackAboveL != null) {
onActivityResultAboveL(requestCode, resultCode, data);
} else if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
} else if (requestCode == VIDEO_REQUEST) {
if (null == mUploadMessage && null == mUploadCallbackAboveL) return;
Uri result = data == null || resultCode != RESULT_OK ? null : data.getData();
if (mUploadCallbackAboveL != null) {
if (resultCode == RESULT_OK) {
mUploadCallbackAboveL.onReceiveValue(new Uri[]{result});
mUploadCallbackAboveL = null;
} else {
mUploadCallbackAboveL.onReceiveValue(new Uri[]{});
mUploadCallbackAboveL = null;
}
} else if (mUploadMessage != null) {
if (resultCode == RESULT_OK) {
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
} else {
mUploadMessage.onReceiveValue(Uri.EMPTY);
mUploadMessage = null;
}
}
}
}
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void onActivityResultAboveL(int requestCode, int resultCode, Intent data) {
if (requestCode != PHOTO_REQUEST || mUploadCallbackAboveL == null) {
return;
}
Uri[] results = null;
if (resultCode == Activity.RESULT_OK) {
if (data == null) {
results = new Uri[]{imageUri};
} else {
String dataString = data.getDataString();
ClipData clipData = data.getClipData();
if (clipData != null) {
results = new Uri[clipData.getItemCount()];
for (int i = 0; i < clipData.getItemCount(); i++) {
ClipData.Item item = clipData.getItemAt(i);
results[i] = item.getUri();
}
}
if (dataString != null)
results = new Uri[]{Uri.parse(dataString)};
}
}
mUploadCallbackAboveL.onReceiveValue(results);
mUploadCallbackAboveL = null;
}
@Override
protected void onDestroy() {
super.onDestroy();
if (webView != null) {
webView.setWebViewClient(null);
webView.setWebChromeClient(null);
webView.loadDataWithBaseURL(null, "", "text/html", "utf-8", null);
webView.clearHistory();
// ((ViewGroup) webView.getParent()).removeView(webView);
webView.destroy();
webView = null;
}
}
}
报错信息
W/System.err: java.lang.IllegalArgumentException: Couldn't find meta-data for provider with authority com.example.myapplication.fileprovider
at androidx.core.content.FileProvider.parsePathStrategy(FileProvider.java:606)
at androidx.core.content.FileProvider.getPathStrategy(FileProvider.java:579)
W/System.err: at androidx.core.content.FileProvider.getUriForFile(FileProvider.java:417)
at com.example.myapplication.MainActivity$MyChromeWebClient.takePhoto(MainActivity.java:218)
at com.example.myapplication.MainActivity$MyChromeWebClient.onShowFileChooser(MainActivity.java:199)
at jU.a(PG:554)
at zT.runFileChooser(PG:72)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:326)
at android.os.Looper.loop(Looper.java:196)
at android.app.ActivityThread.main(ActivityThread.java:7227)
at java.lang.reflect.Method.invoke(Native Method)
W/System.err: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:499)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:962)
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