让Android的WebView支持html里面的文件上传 _android

【让Android的WebView支持html里面的文件上传】关山初度尘未洗，策马扬鞭再奋蹄！这篇文章主要讲述让Android的WebView支持html里面的文件上传相关的知识，希望能为你提供帮助。
默认情况下，android的webview是不支持< input type=file> 的，点击没有任何反应，如果希望点击上传，弹出选择文件、图片的窗口，那就需要自定义一个WebChromeClient

public class MyChromeClient extends WebChromeClient { public ValueCallback< Uri> UploadMsg; public ValueCallback< Uri[]> UploadMsg2; private Activity activity; public static final int FILECHOOSER_RESULTCODE = 5173; public static String mCameraFilePath = ""; @SuppressWarnings("deprecation") public MyChromeClient(Activity cordova) {this.activity = cordova; }@Override public void onProgressChanged(WebView view, int newProgress) {super.onProgressChanged(view, newProgress); }// < input type="file" name="fileField" id="fileField" /> // Android > 4.1.1@Override public boolean onShowFileChooser(WebView webView, ValueCallback< Uri[]> filePathCallback, FileChooserParams fileChooserParams) { // TODO 自动生成的方法存根 UploadMsg2 = filePathCallback; this.activity.startActivityForResult(createDefaultOpenableIntent(),this.FILECHOOSER_RESULTCODE); return false; }@SuppressWarnings("static-access") public void openFileChooser(ValueCallback< Uri> uploadMsg,String acceptType, String capture) {UploadMsg = uploadMsg; this.activity.startActivityForResult(createDefaultOpenableIntent(),this.FILECHOOSER_RESULTCODE); }// 3.0 +@SuppressWarnings("static-access") public void openFileChooser(ValueCallback< Uri> uploadMsg, String acceptType) {UploadMsg = uploadMsg; this.activity.startActivityForResult(createDefaultOpenableIntent(),this.FILECHOOSER_RESULTCODE); }// Android < 3.0@SuppressWarnings("static-access") public void openFileChooser(ValueCallback< Uri> uploadMsg) {UploadMsg = uploadMsg; this.activity.startActivityForResult(createDefaultOpenableIntent(),this.FILECHOOSER_RESULTCODE); }private Intent createDefaultOpenableIntent() {Intent i = new Intent(Intent.ACTION_GET_CONTENT); i.addCategory(Intent.CATEGORY_OPENABLE); i.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,"image/*"); Intent chooser = createChooserIntent(createCameraIntent()/* * * , * * createCamcorderIntent * * (), * * createSoundRecorderIntent * * () */); chooser.putExtra(Intent.EXTRA_INTENT, i); return chooser; }private Intent createChooserIntent(Intent... intents) {Intent chooser = new Intent(Intent.ACTION_CHOOSER); chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, intents); chooser.putExtra(Intent.EXTRA_TITLE, "选择图片"); return chooser; }@SuppressWarnings("static-access") private Intent createCameraIntent() {Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); File externalDataDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM); File cameraDataDir = new File(externalDataDir.getAbsolutePath()+ File.separator + "515aaa"); cameraDataDir.mkdirs(); String mCameraFilePath = cameraDataDir.getAbsolutePath()+ File.separator + System.currentTimeMillis() + ".jpg"; this.mCameraFilePath = mCameraFilePath; cameraIntent.putExtra(MediaStore.Images.Media.ORIENTATION, 0); cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT,Uri.fromFile(new File(mCameraFilePath))); return cameraIntent; }/* * * private Intent createCamcorderIntent() { return new * * Intent(MediaStore.ACTION_VIDEO_CAPTURE); } * * * * private Intent createSoundRecorderIntent() { return new * * Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION); } */public static Uri getImageContentUri(Context context, java.io.File imageFile) {String filePath = imageFile.getAbsolutePath(); Cursor cursor = context.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,new String[] { MediaStore.Images.Media._ID },MediaStore.Images.Media.DATA + "=? ",new String[] { filePath }, null); if (cursor != null & & cursor.moveToFirst()) {int id = cursor.getInt(cursor.getColumnIndex(MediaStore.MediaColumns._ID)); Uri baseUri = Uri.parse("content://media/external/images/media"); return Uri.withAppendedPath(baseUri, "" + id); } else {if (imageFile.exists()) {ContentValues values = new ContentValues(); values.put(MediaStore.Images.Media.DATA, filePath); return context.getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); } else {return null; }}}}

然后指定webview使用这个client