[英]Web view onReceivedError is handled but still showing web page not available
I was trying to show a web page on my web view. 我试图在我的网络视图上显示一个网页。 and in case if an error occurs or page loading fails I want to show a sad smiley and a text showing that your page is not loaded or anything like that.
如果发生错误或页面加载失败,我想显示一个悲伤的笑脸,并显示一条文本,表明您的页面未加载或类似的内容。 and for that I tried to put my code inside
onReceivedError()
but somehow it does not work except toasts and logs. 为此,我尝试将代码放入
onReceivedError()
但除了烤面包和日志外,它不起作用。
My code is as follows: 我的代码如下:
webView.setWebViewClient(new WebViewClient(){
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
actionBar.setTitle(Constants.TITLE_VERIFYING);
hideError();
showProgress();
Toast.makeText(WebViewActivity.this, "start loading", Toast.LENGTH_SHORT).show();
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
actionBar.setTitle(Constants.TITLE_VERIFIED);
hideError();
hideProgress();
Toast.makeText(WebViewActivity.this, "Web view jas loaded", Toast.LENGTH_SHORT).show();
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
hideProgress();
showError();
Toast.makeText(WebViewActivity.this, "Could not load your page", Toast.LENGTH_SHORT).show();
super.onReceivedError(view,errorCode,description,failingUrl);
Toast.makeText(WebViewActivity.this, "error", Toast.LENGTH_SHORT).show();
}
});
Other methods are: 其他方法是:
private void showProgress() {
avLoadingIndicatorView.setVisibility(View.VISIBLE);
loadingText.setVisibility(View.VISIBLE);
avLoadingIndicatorView.show();
webView.setAlpha(Constants.ALPHA_LAYOUT);
}
private void hideProgress() {
avLoadingIndicatorView.hide();
webView.setAlpha(1f);
loadingText.setVisibility(View.GONE);
avLoadingIndicatorView.setVisibility(View.GONE);
}
private void showError(){
webView.setVisibility(View.GONE);
sadSmiley.setVisibility(View.VISIBLE);
errorText.setVisibility(View.VISIBLE);
}
private void hideError(){
webView.setVisibility(View.VISIBLE);
sadSmiley.setVisibility(View.GONE);
errorText.setVisibility(View.GONE);
}
Layout code: 布局代码:
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activity.WebViewActivity">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="@color/primary"
app:titleTextColor="@color/white"
android:minHeight="?attr/actionBarSize" />
<WebView
android:id="@+id/web_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="?attr/actionBarSize"
/>
<com.wang.avi.AVLoadingIndicatorView
android:id="@+id/loading"
style="AVLoadingIndicatorView.Small"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:padding="10dp"
android:elevation="10dp"
app:indicatorColor="@color/progress"
app:indicatorName="BallScaleIndicator"
android:visibility="gone"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintLeft_toLeftOf="parent"/>
<TextView
android:id="@+id/loading_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/tvDarkLargeStyle"
android:text="Verifying Your Document"
android:visibility="gone"
android:textColor="@color/primary"
app:layout_constraintTop_toBottomOf="@+id/loading"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"/>
<ImageView
android:id="@+id/img_sad_smiley"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/sad_smiley_primary_64"
android:layout_margin="10dp"
android:padding="10dp"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:visibility="gone"/>
<TextView
android:id="@+id/error_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="@style/tvDarkLargeStyle"
android:text="Sorry! we could not load your page!"
android:textColor="@color/primary"
app:layout_constraintTop_toBottomOf="@+id/img_sad_smiley"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
android:textAlignment="center"
android:layout_margin="10dp"
android:visibility="gone"
/>
</android.support.constraint.ConstraintLayout>
Please help me. 请帮我。 Thanks.
谢谢。
Because onReceivedError
called before onPageFinished
, so your sadSmiley
and errorText
gone. 因为
onReceivedError
在onPageFinished
之前onPageFinished
,所以您的sadSmiley
和errorText
不见了。
Try below code, 试试下面的代码,
boolean errorOccurred = false; // Global variable
webView.setWebViewClient(new WebViewClient() {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
hideError();
showProgress();
Toast.makeText(Test.this, "start loading", Toast.LENGTH_SHORT).show();
errorOccurred=false;
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
if (!errorOccurred) {
hideError();
}
hideProgress();
Toast.makeText(Test.this, "Web view was loaded", Toast.LENGTH_SHORT).show();
}
@Override
public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) {
errorOccurred = true;
hideProgress();
showError();
Toast.makeText(Test.this, "Could not load your page", Toast.LENGTH_SHORT).show();
super.onReceivedError(view, errorCode, description, failingUrl);
Toast.makeText(Test.this, "error", Toast.LENGTH_SHORT).show();
}
});
Move the line super.onReceivedError(view,errorCode,description,failingUrl);
移动这行
super.onReceivedError(view,errorCode,description,failingUrl);
above hideProgress();
在
hideProgress();
之上hideProgress();
in onReceivedError()
method. 在
onReceivedError()
方法中。
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