Android(安卓)5.0WebView选择本地文件

package com.bz365.project.activity.h5;import android.annotation.SuppressLint;import android.content.ContentUris;import android.content.Context;import android.content.Intent;import android.database.Cursor;import android.net.Uri;import android.os.Build;import android.os.Bundle;import android.os.Environment;import android.provider.DocumentsContract;import android.provider.MediaStore;import android.support.annotation.NonNull;import android.text.TextUtils;import android.view.Gravity;import android.view.KeyEvent;import android.view.View;import android.webkit.ValueCallback;import android.webkit.WebChromeClient;import android.webkit.WebView;import android.webkit.WebViewClient;import android.widget.ImageView;import android.widget.TextView;import com.bz365.project.R;import com.bz365.project.beans.ShareBaseBean;import com.bz365.project.beans.ShareBean;import com.bz365.project.listener.SharecontentListener;import com.bz365.project.utils.ShareUtils;import com.bz365.project.utils.share.ShareAction;import com.bz365.project.utils.share.ShareContentCallBack;import com.bz365.project.widgets.SharPopupWindow;import com.umeng.analytics.MobclickAgent;import com.umeng.socialize.UMShareAPI;import java.io.File;import lib.bz365.activity.AppBaseActivity;import lib.bz365.util.CommonUtils;import lib.bz365.util.StringUtil;public class WebActivity extends AppBaseActivity implements SharecontentListener {    private ValueCallback mUploadMessage;    private final static int FILECHOOSER_RESULTCODE = 1;    private String title, url, shareKey;    private String appImgUrl;    private String shareTitle;    private String shareUrl;    private String memo;    private ImageView img_share;    private SharPopupWindow mSharPopupWindow;    private ShareUtils mShareUtils;    private WebView view;    public static void startAction(Context context, @NonNull String title, @NonNull String url, String shareKey) {        Intent intent = new Intent(context, WebActivity.class);        intent.putExtra("title", title);        intent.putExtra("url", url);        intent.putExtra("shareKey", shareKey);        context.startActivity(intent);    }    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);    }    @Override    public void initVariables() {        title = getIntent().getStringExtra("title");        url = getIntent().getStringExtra("url");        shareKey = getIntent().getStringExtra("shareKey");        mSharPopupWindow = new SharPopupWindow(this, this);        mShareUtils = new ShareUtils(this);    }    @Override    public void initView(Bundle savedInstanceState) {        setContentView(R.layout.activity_web_view);        view = (WebView) findViewById(R.id.webView);        String ua = view.getSettings().getUserAgentString();        view.getSettings().setUserAgentString(ua + " app-channel/");        view.getSettings().setJavaScriptEnabled(true);        view.addJavascriptInterface(new WebViewContent(WebActivity.this), "Android");        view.loadUrl(url, CommonUtils.getHeader());        view.setWebViewClient(new WebViewClient() {            @Override            public boolean shouldOverrideUrlLoading(WebView view, String url) {                view.loadUrl(url, CommonUtils.getHeader());                return true;            }        });        view.setWebChromeClient(new XHSWebChromeClient());        ImageView img_back = (ImageView) findViewById(R.id.img_back);        if (img_back != null) {            img_back.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    returnPage();                }            });        }        TextView tv_title = (TextView) findViewById(R.id.tv_title);        if (!StringUtil.isEmpty(title)) {            if (tv_title != null) {                tv_title.setText(title);            }        }        img_share = (ImageView) findViewById(R.id.img_share);        if (!StringUtil.isEmpty(shareKey)) {            if (img_share != null) {                img_share.setVisibility(View.VISIBLE);                img_share.setOnClickListener(new View.OnClickListener() {                    @Override                    public void onClick(View v) {                        showProgress();                        new ShareAction().getShareContent(new ShareContentCallBack() {                            @Override                            public void onShareContent(ShareBaseBean mShareBaseBean, String emptyMsg, String errorMsg) {                                closeProgress();                                if (mShareBaseBean != null) {                                    ShareBean mShareBean = mShareBaseBean.getData();                                    appImgUrl = mShareBean.getAppImgUrl();                                    shareTitle = mShareBean.getShareTitle();                                    shareUrl = mShareBean.getShareUrl();                                    memo = mShareBean.getMemo();                                    mSharPopupWindow.showAtLocation(img_share, Gravity.BOTTOM                                            | Gravity.CENTER_HORIZONTAL, 0, 0); // 设置layout在PopupWindow中显示的位置                                } else {                                    if (!StringUtil.isEmpty(errorMsg)) {                                        ShowToast(errorMsg);                                    }                                }                            }                        }, shareKey);                    }                });            }        }    }    @Override    public void loadData() {    }    @Override    public void setShareby(int index) {        mShareUtils.setShare(this, memo, shareTitle, shareUrl, appImgUrl, index);    }    @Override    public boolean onKeyDown(int keyCode, KeyEvent event) {        if (keyCode == KeyEvent.KEYCODE_BACK) {            returnPage();            return true;        }        return super.onKeyDown(keyCode, event);    }    public void returnPage() {        if (mSharPopupWindow != null && mSharPopupWindow.isShowing()) {            mSharPopupWindow.dismiss();        }        if (view.canGoBack()) {            view.goBack();// 返回上一页面        } else {            finish();        }    }    public class XHSWebChromeClient extends WebChromeClient {        // For Android 3.0+        public void openFileChooser(ValueCallback uploadMsg) {            if (mUploadMessage != null) {                mUploadMessage.onReceiveValue(null);            }            mUploadMessage = uploadMsg;            Intent i = new Intent(Intent.ACTION_GET_CONTENT);            i.addCategory(Intent.CATEGORY_OPENABLE);            i.setType("*/*");            startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);        }        // For Android 3.0+        public void openFileChooser(ValueCallback uploadMsg, String acceptType) {            if (mUploadMessage != null) {                mUploadMessage.onReceiveValue(null);            }            mUploadMessage = uploadMsg;            Intent i = new Intent(Intent.ACTION_GET_CONTENT);            i.addCategory(Intent.CATEGORY_OPENABLE);            String type = TextUtils.isEmpty(acceptType) ? "*/*" : acceptType;            i.setType(type);            startActivityForResult(Intent.createChooser(i, "File Chooser"),                    FILECHOOSER_RESULTCODE);        }        // For Android 4.1        public void openFileChooser(ValueCallback uploadMsg, String acceptType, String capture) {            if (mUploadMessage != null) {                mUploadMessage.onReceiveValue(null);            }            mUploadMessage = uploadMsg;            Intent i = new Intent(Intent.ACTION_GET_CONTENT);            i.addCategory(Intent.CATEGORY_OPENABLE);            String type = TextUtils.isEmpty(acceptType) ? "*/*" : acceptType;            i.setType(type);            startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);        }        //Android 5.0+        @Override        @SuppressLint("NewApi")        public boolean onShowFileChooser(WebView webView, ValueCallback filePathCallback, FileChooserParams fileChooserParams) {            if (mUploadMessage != null) {                mUploadMessage.onReceiveValue(null);            }            mUploadMessage = filePathCallback;            Intent i = new Intent(Intent.ACTION_GET_CONTENT);            i.addCategory(Intent.CATEGORY_OPENABLE);            if (fileChooserParams != null && fileChooserParams.getAcceptTypes() != null                    && fileChooserParams.getAcceptTypes().length > 0) {                i.setType(fileChooserParams.getAcceptTypes()[0]);            } else {                i.setType("*/*");            }            startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);            return true;        }    }    @Override    protected void onResume() {        super.onResume();        MobclickAgent.onPageStart(title);        MobclickAgent.onResume(this);    }    @Override    protected void onPause() {        super.onPause();        MobclickAgent.onPageEnd(title);        MobclickAgent.onPause(this);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        UMShareAPI.get(this).onActivityResult(requestCode, resultCode, data);        if (requestCode == FILECHOOSER_RESULTCODE) {            if (null == mUploadMessage) return;            Uri result = data == null || resultCode != RESULT_OK ? null : data.getData();            if (result == null) {                mUploadMessage.onReceiveValue(null);                mUploadMessage = null;                return;            }            String path = FileUtils.getPath(this, result);            if (TextUtils.isEmpty(path)) {                mUploadMessage.onReceiveValue(null);                mUploadMessage = null;                return;            }            Uri uri = Uri.fromFile(new File(path));            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {                mUploadMessage.onReceiveValue(new Uri[]{uri});            } else {                mUploadMessage.onReceiveValue(uri);            }            mUploadMessage = null;        }    }    public static class FileUtils {        /**         * @param uri The Uri to check.         * @return Whether the Uri authority is ExternalStorageProvider.         */        public static boolean isExternalStorageDocument(Uri uri) {            return "com.android.externalstorage.documents".equals(uri.getAuthority());        }        /**         * @param uri The Uri to check.         * @return Whether the Uri authority is DownloadsProvider.         */        public static boolean isDownloadsDocument(Uri uri) {            return "com.android.providers.downloads.documents".equals(uri.getAuthority());        }        /**         * @param uri The Uri to check.         * @return Whether the Uri authority is MediaProvider.         */        public static boolean isMediaDocument(Uri uri) {            return "com.android.providers.media.documents".equals(uri.getAuthority());        }        /**         * Get the value of the data column for this Uri. This is useful for         * MediaStore Uris, and other file-based ContentProviders.         *         * @param context       The context.         * @param uri           The Uri to query.         * @param selection     (Optional) Filter used in the query.         * @param selectionArgs (Optional) Selection arguments used in the query.         * @return The value of the _data column, which is typically a file path.         */        public static String getDataColumn(Context context, Uri uri, String selection,                                           String[] selectionArgs) {            Cursor cursor = null;            final String column = "_data";            final String[] projection = {                    column            };            try {                cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,                        null);                if (cursor != null && cursor.moveToFirst()) {                    final int column_index = cursor.getColumnIndexOrThrow(column);                    return cursor.getString(column_index);                }            } finally {                if (cursor != null)                    cursor.close();            }            return null;        }        /**         * Get a file path from a Uri. This will get the the path for Storage Access         * Framework Documents, as well as the _data field for the MediaStore and         * other file-based ContentProviders.         *         * @param context The context.         * @param uri     The Uri to query.         * @author paulburke         */        @SuppressLint("NewApi")        public static String getPath(final Context context, final Uri uri) {            final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;            // DocumentProvider            if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {                // ExternalStorageProvider                if (isExternalStorageDocument(uri)) {                    final String docId = DocumentsContract.getDocumentId(uri);                    final String[] split = docId.split(":");                    final String type = split[0];                    if ("primary".equalsIgnoreCase(type)) {                        return Environment.getExternalStorageDirectory() + "/" + split[1];                    }                }                // DownloadsProvider                else if (isDownloadsDocument(uri)) {                    final String id = DocumentsContract.getDocumentId(uri);                    final Uri contentUri = ContentUris.withAppendedId(                            Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));                    return getDataColumn(context, contentUri, null, null);                }                // MediaProvider                else if (isMediaDocument(uri)) {                    final String docId = DocumentsContract.getDocumentId(uri);                    final String[] split = docId.split(":");                    final String type = split[0];                    Uri contentUri = null;                    if ("image".equals(type)) {                        contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;                    } else if ("video".equals(type)) {                        contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;                    } else if ("audio".equals(type)) {                        contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;                    }                    final String selection = "_id=?";                    final String[] selectionArgs = new String[]{                            split[1]                    };                    return getDataColumn(context, contentUri, selection, selectionArgs);                }            }            // MediaStore (and general)            else if ("content".equalsIgnoreCase(uri.getScheme())) {                return getDataColumn(context, uri, null, null);            }            // File            else if ("file".equalsIgnoreCase(uri.getScheme())) {                return uri.getPath();            }            return null;        }    }}
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