许久不写博客了,今天项目遇到一个问题,webview嵌入html调用不起来相册
百度了一下找到了解决方案请看代码:
mWebview.loadUrl(“请填写你的网址”);
mWebview.getSettings().
setRenderPriority(WebSettings.RenderPriority.HIGH);//已经过时,暂时没有办法,如果有好的请留言
WebSettings settings = mWebview.getSettings();
settings.setUseWideViewPort(true);
settings.setLoadWithOverviewMode(true);
settings.setJavaScriptEnabled(true);
settings.setSupportZoom(true);
mWebview.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return super.shouldOverrideUrlLoading(view, url);
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
}
});
mWebview.setWebChromeClient(new WebChromeClient() {
@Override
public boolean onShowFileChooser(WebView webView,
ValueCallback<Uri[]> filePathCallback,
FileChooserParams fileChooserParams) {
mUploadCallbackAboveL = filePathCallback;
take();
return true;
}
public void openFileChooser(ValueCallback<Uri> uploadMsg) {
mUploadMessage = uploadMsg;
take();
}
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
mUploadMessage = uploadMsg;
take();
}
public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
mUploadMessage = uploadMsg;
take();
}
});
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == FILECHOOSER_RESULTCODE) {
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) {
Log.e("result", result + "");
if (result == null) {
// mUploadMessage.onReceiveValue(imageUri);
mUploadMessage.onReceiveValue(imageUri);
mUploadMessage = null;
Log.e("imageUri", imageUri + "");
} else {
mUploadMessage.onReceiveValue(result);
mUploadMessage = null;
}
}
}
}
@SuppressWarnings("null")
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
private void onActivityResultAboveL(int requestCode, int resultCode, Intent data) {
if (requestCode != FILECHOOSER_RESULTCODE
|| 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)};
}
}
}
if (results != null) {
mUploadCallbackAboveL.onReceiveValue(results);
mUploadCallbackAboveL = null;
} else {
results = new Uri[]{imageUri};
mUploadCallbackAboveL.onReceiveValue(results);
mUploadCallbackAboveL = null;
}
return;
}
private void take() {
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "MyApp");
// Create the storage directory if it does not exist
if (!imageStorageDir.exists()) {
imageStorageDir.mkdirs();
}
File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
imageUri = Uri.fromFile(file);
final List<Intent> cameraIntents = new ArrayList<Intent>();
final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
final PackageManager packageManager = getPackageManager();
final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
for (ResolveInfo res : listCam) {
final String packageName = res.activityInfo.packageName;
final Intent i = new Intent(captureIntent);
i.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
i.setPackage(packageName);
i.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
cameraIntents.add(i);
}
Intent i = new Intent(Intent.ACTION_GET_CONTENT);
i.addCategory(Intent.CATEGORY_OPENABLE);
i.setType("image/*");
Intent chooserIntent = Intent.createChooser(i, "请选择图片");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[]{}));
this.startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
}
哎,这个webview真的难用,大家也可以去GitHub上面去看看有一些好的webview库 也可以用的