一个全能webview嵌套框架核心代码 https 访问文件 缓存 "< alert >"，"< input >", "< a >"等标签对接 拍照、相册、录像、视频、下载文件
代码如下：
public abstract class SuperWebView extends Activity {
private static final int ACTIVITY_CAMREA = 6666;
private static final int ACTIVITY_ALBUM = 9999;
private static WebView sWebView;
private static View load_view;
private static ProgressBar progressBar;
private static ImageView load_img;
private ValueCallback<Uri[]> mUploadMessage;
private final static int FILECHOOSER_RESULTCODE = 1;
private boolean LOAD_ONCE = false;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
protected void onResume() {
super.onResume();
if (!LOAD_ONCE) {
initWebView();
}
LOAD_ONCE = true;
}
private void initWebView() {
ActivityCompat.requestPermissions(SuperWebView.this, new String[]{Manifest.permission.SEND_SMS}, 0);
load_img.setVisibility(SwebManager.Progress.isHideModileGif ? View.GONE : View.VISIBLE);
progressBar.setVisibility(SwebManager.Progress.isHideTopProgress ? View.GONE : View.VISIBLE);
RequestOptions options = new RequestOptions().diskCacheStrategy(DiskCacheStrategy.RESOURCE);
Glide.with(this).load(R.drawable.look).apply(options).into(load_img);
load_img.setVisibility(View.VISIBLE);
WebSettings webSettings = sWebView.getSettings();
webSettings.setJavaScriptEnabled(SwebManager.Web.supportJS); // 设置支持javascript脚本
webSettings.setAllowFileAccess(SwebManager.Web.supportAccessFiles); // 允许访问文件
webSettings.setBuiltInZoomControls(SwebManager.Web.builtInZoomControls); // 设置显示缩放按钮
webSettings.setCacheMode(SwebManager.Web.cacheMode); //缓存模式
webSettings.setAppCacheEnabled(SwebManager.Web.appCacheEnabled); //app缓存
if (SwebManager.Web.NetUrl != null) {
sWebView.loadUrl(SwebManager.Web.NetUrl);
} else if (SwebManager.Web.LocalData != null) {
sWebView.loadDataWithBaseURL(null, SwebManager.Web.LocalData, "text/html", "utf-8", null);
} else {
sWebView.loadDataWithBaseURL(null, "您未设置URL，请选择LoadNetUrl或LoadLocalData方法加载URL", "text/html", "utf-8", null);
}
webSettings.setJavaScriptCanOpenWindowsAutomatically(false);
webSettings.setUseWideViewPort(true);// 关键点
webSettings.setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);
webSettings.setDisplayZoomControls(false);
webSettings.setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
webSettings.setLoadWithOverviewMode(true);
// 解决有些比较大的H5页面显示超出屏幕的问题 end
// 开启 DOM storage API 功能
sWebView.getSettings().setDomStorageEnabled(true);
// 开启 database storage API 功能
sWebView.getSettings().setDatabaseEnabled(true);
sWebView.addJavascriptInterface(SuperWebView.jsCallback, SwebManager.Web.jsInterfaceName);
int mDensity = getResources().getDisplayMetrics().densityDpi;
if (mDensity == 240) {
webSettings.setDefaultZoom(WebSettings.ZoomDensity.FAR);
} else if (mDensity == 160) {
webSettings.setDefaultZoom(WebSettings.ZoomDensity.MEDIUM);
} else if (mDensity == 120) {
webSettings.setDefaultZoom(WebSettings.ZoomDensity.CLOSE);
} else if (mDensity == DisplayMetrics.DENSITY_XHIGH) {
webSettings.setDefaultZoom(WebSettings.ZoomDensity.FAR);
} else if (mDensity == DisplayMetrics.DENSITY_TV) {
webSettings.setDefaultZoom(WebSettings.ZoomDensity.FAR);
} else {
webSettings.setDefaultZoom(WebSettings.ZoomDensity.MEDIUM);
}
WebChromeClientImpl chromeClient = new WebChromeClientImpl();
sWebView.setWebChromeClient(chromeClient);
sWebView.setWebViewClient(new WebViewClient() {
@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);
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (SuperWebView.SwebManager.Web.supportCallSMS) {
if (url.startsWith("tel:")) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
startActivity(intent);
return true;
}
if (url.startsWith("sms:")) {
try {
String replace = url.replace("sms:", "");
replace = replace.replace("body=", "");
Intent intent = new Intent(Intent.ACTION_SENDTO, Uri.parse("smsto:" + replace.substring(0, replace.indexOf("?"))));
intent.putExtra("sms_body", replace.substring(replace.indexOf("?") + 1, replace.length()));
startActivity(intent);
} catch (Exception e) {
}
return true;
}
view.loadUrl(url);
} else {
return false;
}
return false;
}
});
sWebView.setDownloadListener(new DownloadListener() {
@Override
public void onDownloadStart(String url, String s1, String s2, String s3, long l) {
Log.e("", "获取到的下载地址：：：" + url);
if (SuperWebView.swebLoadListener != null)
SuperWebView.swebLoadListener.onDownloadStart(url, s1, s2, s3, l);
switch (SwebManager.Web.downFileType) {
case 1:
//跳转浏览器下载
Uri uri = Uri.parse(url);
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
break;
case 2:
//系统下载
// 指定下载地址
DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url));
// 允许媒体扫描，根据下载的文件类型被加入相册、音乐等媒体库
request.allowScanningByMediaScanner();
// 设置通知的显示类型，下载进行时和完成后显示通知
request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
// 设置通知栏的标题，如果不设置，默认使用文件名
// request.setTitle("This is title");
// 设置通知栏的描述
//request.setDescription("This is description");
// 允许在计费流量下下载
request.setAllowedOverMetered(false);
// 允许该记录在下载管理界面可见
request.setVisibleInDownloadsUi(false);
// 允许漫游时下载
request.setAllowedOverRoaming(true);
// 允许下载的网路类型
request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI);
// 设置下载文件保存的路径和文件名
String fileName = URLUtil.guessFileName(url, SuperWebView.SwebManager.Web.downFilePath, url);
request.setDestinationInExternalPublicDir(Environment.DIRECTORY_DOWNLOADS, fileName);
// 外可选一下方法，自定义下载路径bj8
// request.setDestinationUri()
// request.setDestinationInExternalFilesDir()
final DownloadManager downloadManager = (DownloadManager) SuperWebView.this.getSystemService(DOWNLOAD_SERVICE);
// 添加一个下载任务
long downloadId = downloadManager.enqueue(request);
break;
}
}
});
//返回按键的处理
sWebView.setOnKeyListener(new View.OnKeyListener() {
@Override
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (SuperWebView.swebLoadListener != null)
SuperWebView.swebLoadListener.goBackListener(v, keyCode, event);
if (SwebManager.Web.openGoBack) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
if (sWebView.canGoBack()) {
sWebView.goBack();
return true;
}
}
}
}
return false;
}
});
}
private String mCameraPhotoPath = null;
class WebChromeClientImpl extends WebChromeClient {
@Override
public void onProgressChanged(WebView view, int newProgress) {
super.onProgressChanged(view, newProgress);
if (SuperWebView.swebLoadListener != null)
SuperWebView.swebLoadListener.onProgressChanged(view, newProgress);
if (newProgress > 90) {
progressBar.setVisibility(View.GONE);
load_img.setVisibility(View.GONE);
} else {
if (SwebManager.Progress.isHideTopProgress) {
progressBar.setVisibility(View.GONE);
} else {
progressBar.setVisibility(View.VISIBLE);
progressBar.setProgress(newProgress);//设置加载进度
}
}
}
@Override
public boolean onJsAlert(WebView view, String url, String message, JsResult result) {
return super.onJsAlert(view, url, message, result);
}
@Override
public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePath, FileChooserParams fileChooserParams) {
switch (SwebManager.Web.upFileType) {
case 1:
choseWebFile(filePath);
break;
case 2:
asAppleSeleFile(filePath);
break;
}
return true;
}
}
/**
* 仿苹果
*
* @param filePath
*/
private void asAppleSeleFile(ValueCallback<Uri[]> filePath) {
/* if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(null);
}*/
mUploadMessage = filePath;
PictureSelector
.create(SuperWebView.this, PictureSelector.SELECT_REQUEST_CODE)
.selectPicture(true, 200, 200, 1, 1);
}
/**
* 拉起网页版本相册选择方式
*
* @return
* @throws IOException
*/
private void choseWebFile(ValueCallback<Uri[]> filePath) {
if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(null);
}
mUploadMessage = filePath;
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
Intent takePictureIntent1 = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
File photoFile = null;
try {
photoFile = createImageFile();
takePictureIntent.putExtra("PhotoPath", mCameraPhotoPath);
} catch (IOException ex) {
}
if (photoFile != null) {
mCameraPhotoPath = "file:" + photoFile.getAbsolutePath();
//takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
} else {
takePictureIntent = null;
}
}
Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
contentSelectionIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
// contentSelectionIntent.setType("image/*");
contentSelectionIntent.setType("image/;video/");
Intent[] intentArray;
if (takePictureIntent != null) {
intentArray = new Intent[]{takePictureIntent, takePictureIntent1};
} else {
intentArray = new Intent[2];
}
Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
chooserIntent.putExtra(Intent.EXTRA_TITLE, "选择操作");
chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
startActivityForResult(Intent.createChooser(chooserIntent, "选择操作"), 1);
}
private File createImageFile() throws IOException {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File imageFile = File.createTempFile(imageFileName, ".jpg", storageDir);
return imageFile;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
if (SuperWebView.SwebManager.Web.upFileType == 1) {
if (requestCode == FILECHOOSER_RESULTCODE) {
if (null == mUploadMessage)
return;
if (data != null) {
//返回有缩略图
if (data.hasExtra("data")) {
Bitmap thumbnail = data.getParcelableExtra("data");
Uri uri = Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), thumbnail, null, null));
Uri[] uris = {uri};
mUploadMessage.onReceiveValue(uris);
}
Uri result = data == null || resultCode != Activity.RESULT_OK ? null : data.getData();
try {
Uri[] uris = {result};
mUploadMessage.onReceiveValue(uris);
} catch (Exception ew) {
}
} else {
if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(null);
}
}
mUploadMessage = null;
}
}
if (SuperWebView.SwebManager.Web.upFileType == 2) {
if (requestCode == PictureSelector.SELECT_REQUEST_CODE) {
if (data != null) {
String picturePath = data.getStringExtra(PictureSelector.PICTURE_PATH);
Log.e("", "" + picturePath);
Uri[] uris = {Uri.parse("file://" + picturePath)};
mUploadMessage.onReceiveValue(uris);
} else {
if (mUploadMessage != null) {
mUploadMessage.onReceiveValue(null);
}
}
}
}
}
/**
* 管理类
*/
public static class SwebManager {
public static void initLayout(View loadView) {
load_view = loadView;
progressBar = (ProgressBar) load_view.findViewById(R.id.superweb_progress);
sWebView = (WebView) load_view.findViewById(R.id.superweb_webview);
load_img = (ImageView) load_view.findViewById(R.id.superweb_load_img);
}
public static class Progress {
public static int topProgressColor = 0; //顶部进度条颜色
public static int topProgressBg = 0; //顶部进度条背景颜色
public static boolean isHideTopProgress; //隐藏顶部进度条
public static int modileGif;//设置中间gif
public static boolean isHideModileGif; //隐藏中间gif
public void configTop(int topProgressColor, int topProgressBg, boolean isHideTopProgress) {
this.topProgressColor = topProgressColor;
this.topProgressBg = topProgressBg;
this.isHideTopProgress = isHideTopProgress;
}
public void configMiddle(int modileGif, boolean isHideMiddleGif) {
this.modileGif = modileGif;
this.isHideModileGif = isHideMiddleGif;
}
}
public static class Web {
public static boolean openGoBack; //开启返回按键处理
public static boolean supportJS; //支持JS
public static boolean supportAccessFiles; //支持文件访问
public static boolean builtInZoomControls; //设置缩放按钮
public static boolean supportCallSMS; //支持打电话 发短信
public static int cacheMode; //缓存模式
public static boolean appCacheEnabled; //缓存模式开关
public static int downFileType; //下载文件方式 1，跳转浏览器下载 2，跳转本地系统下载
public static String downFilePath; //下载到地址位置
public static String upPicCompressSize; // 上传图片压缩尺寸 例：500*500
public static int upPicCompressMultiple; // 上传图片压缩倍数 质量
public static String LocalData; //加载本地数据
public static String NetUrl; //加载地址
public static int upFileType; //文件上传方式 1，系统网页级别的默认相册和文件 2，自定义的相册获取器
public static String WebTypeChoseText; //upFileType为1时 选择时候展示的文字
public static String jsInterfaceName; //js交互标识符
public Web configWebCache(int cacheMode, boolean appCacheEnabled) {
this.cacheMode = cacheMode;
this.appCacheEnabled = appCacheEnabled;
return this;
}
public Web configDownFile(int downFileType, String downFilePath) {
this.downFileType = downFileType;
this.downFilePath = downFilePath;
return this;
}
public Web configUpFile(int upFileType, String upPicCompressSize, int upPicCompressMultiple, String WebTypeChoseText) {
this.upFileType = upFileType;
this.WebTypeChoseText = WebTypeChoseText;
this.upPicCompressSize = upPicCompressSize;
this.upPicCompressMultiple = upPicCompressMultiple;
return this;
}
public void configjsInterfaceName(String jsInterfaceName, JsCallbackMethodArea jsCallback) {
this.jsInterfaceName = jsInterfaceName;
SuperWebView.jsCallback = jsCallback;
}
//执行js方法x
public void executeJsMethod(String jsMethodName, String value) {
sWebView.loadUrl("javascript:" + jsMethodName + "('" + value + "')");
sWebView.loadUrl("javascript:sendMsg()");
}
public Web LoadLocalData(String loadLocalData) {
LocalData = loadLocalData;
return this;
}
public Web LoadNetUrl(String loadNetUrl) {
NetUrl = loadNetUrl;
return this;
}
public Web configBasics(boolean openGoBack, boolean supportJS, boolean supportAccessFiles, boolean builtInZoomControls, boolean supportCallSMS) {
this.openGoBack = openGoBack;
this.supportJS = supportJS;
this.supportAccessFiles = supportAccessFiles;
this.builtInZoomControls = builtInZoomControls;
this.supportCallSMS = supportCallSMS;
return this;
}
public void setWebLoadListener(SwebLoadListener swebLoadListener) {
SuperWebView.swebLoadListener = swebLoadListener;
}
}
}
/**
* js交互传值
*/
public class JsCallbackMethodArea {
@JavascriptInterface
public void jsTest() {
Toast.makeText(SuperWebView.this, "JS_test", Toast.LENGTH_SHORT).show();
}
}
public static JsCallbackMethodArea jsCallback;
public static SwebLoadListener swebLoadListener;
}
使用方法：
public class MainActivity extends SuperWebView {
String filePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getPath();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_mainvvxccccc);
SuperWebLayout superWebLayout = (SuperWebLayout) findViewById(R.id.superWebLayout);
SwebManager.initLayout(superWebLayout);
//SuperWeb的进度条基本配置
SwebManager.Progress progress = new SwebManager.Progress();
progress.configTop(R.color.colorPrimary, R.color.colorPrimaryDark, false);
progress.configMiddle(R.drawable.look, false);
//SuperWeb的基础配置、上传文件配置、下载文件配置、缓存配置
final SwebManager.Web web = new SwebManager.Web();
web.LoadNetUrl("http://192.168.199.116/js.html")
.configBasics(true, true, true, true, false)
.configUpFile(SuperContact.UPFILETYPE_CUSTOM, "200*200", 2, "选择操作")
.configDownFile(SuperContact.DOWNFILETYPE_WEBDETIAL, filePath)
.configWebCache(WebSettings.LOAD_DEFAULT, false);
//JS调用本地方法
web.configjsInterfaceName("app", new JsCallbackMethodArea() {
@JavascriptInterface
public void callWXLogin() {
Toast.makeText(MainActivity.this, "微信登录", Toast.LENGTH_SHORT).show();
}
});
//本地调用JS方法
web.executeJsMethod("wxLoginInfo", "给你参数");
}
}