Android 加载 WebView 时的进度条

Android 加载 WebView 时的进度条

groovy
implementation 'androidx.webkit:webkit:1.4.0'

xml
    android:id="@+id/webView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
/>

xml
    android:id="@+id/progressBar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    style="?android:attr/progressBarStyleHorizontal"
/>

java
WebView webView = findViewById(R.id.webView);
ProgressBar progressBar = findViewById(R.id.progressBar);
webView.setWebViewClient(new WebViewClient() {
    @Override
    public void onPageStarted(WebView view, String url, Bitmap favicon) {
        progressBar.setVisibility(View.VISIBLE);
        progressBar.setProgress(0);
    }
    @Override
    public void onPageFinished(WebView view, String url) {
        progressBar.setVisibility(View.GONE);
    }
});
webView.setWebChromeClient(new WebChromeClient() {
    @Override
    public void onProgressChanged(WebView view, int newProgress) {
        progressBar.setProgress(newProgress);
    }
});
webView.loadUrl("https://www.example.com");