webview图片缩放，字体大小设置，打电话

WebSettings webSettings = webview.getSettings();
//支持javascript  
webSettings.setJavaScriptEnabled(true);   
// 设置可以支持缩放   
webSettings.setSupportZoom(true);   
// 设置出现缩放工具   
webSettings.setBuiltInZoomControls(true);  
//扩大比例的缩放  
webSettings.setUseWideViewPort(true);  
//自适应屏幕  
webSettings.setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN);  
webSettings.setLoadWithOverviewMode(true);  
webSettings.setTextSize(WebSettings.TextSize.LARGEST);

//有时候获取不到字体样式，需手动设置大小

android自带的五种字体大小：

SMALLEST(50%), 

        SMALLER(75%),          NORMAL(100%),          LARGER(150%),          LARGEST(200%);

 

webSettings.setUseWideViewPort(true);webSettings.setLoadWithOverviewMode(true); webview.loadUrl(url); webview.setWebViewClient(new WebViewClient() { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { if (WebviewActivity.this == null) { return false; } //调用拨号程序 if (url.startsWith("mailto:") || url.startsWith("geo:") || url.startsWith("tel:") || url.startsWith("smsto:")) { //用intent启动拨打电话 Intent intent = new Intent(Intent.ACTION_CALL,Uri.parse(url)); startActivity(intent); return true; } return false; } }); webview.clearCache(true); webview.clearHistory();