android webview中js交互、第三方分享。
由于要用到js与android交互，先写一下交互的心得：
具体js与android的交互可以查看 http://blog.csdn.net/carson_ho/article/details/64904691，感觉介绍的很详细。
效果图如下：
1.android调用js中的callJS()方法。
方法一：mWebView.loadUrl("javascript:callJS()");//效率低
方法二：mWebView.evaluateJavascript（"javascript:callJS()", new ValueCallback() {
@Override
public void onReceiveValue(String value) {
//此处为 js 返回的结果
}
});//效率高，仅4.4以上可用。 2.js调用android中的方法。
1. 通过WebView的addJavascriptInterface（）进行对象映射
2. 通过 WebViewClient 的shouldOverrideUrlLoading ()方法回调拦截 url
3. 通过 WebChromeClient 的onJsAlert()、onJsConfirm()、onJsPrompt（）方法回调拦截JS对话框alert()、confirm()、prompt（） 消息3.调用android中的方法。我采用的是第一种方法：addJavascriptInterface()
定义JSJavaSprict对象，传递JsInterface（接口中将以后要回调的方法定义好，用的时候实现对应的方法）
（回调就是把方法的定义和功能导入实现分开的一种机制，目的是为了解耦他的本质是基于观察者设计模式，即观察者设计模式的的简化版）// 通过addJavascriptInterface()将Java对象映射到JS对象
//参数1：Javascript对象名
//参数2：Java对象名 mWebView.addJavascriptInterface(new JSJavaSprict(new JsInterface() { @Override
public void starShare(final String shareUrl, final String title, final String thumb, final String disgest) {
ShareDialog shareDialog = new ShareDialog(PolicyDetailsActivity.this, new ShareDialog.ShareClickListen() {
@Override
public void WXFriend() {
runOnUiThread(new Runnable() {
@Override
public void run() {
shareWeixin(0, shareUrl, title, disgest);
}
});
}
@Override
public void WXContacts() {
runOnUiThread(new Runnable() {
@Override
public void run() {
shareWeixin(1, shareUrl, title, disgest);
}
});
}
@Override
public void QQQzone() {
runOnUiThread(new Runnable() {
@Override
public void run() {
shareToQzone(title, disgest, thumb, shareUrl);
}
});
}
@Override
public void QQContacts() {
runOnUiThread(new Runnable() {
@Override
public void run() {
sendQQ(title, disgest, shareUrl, thumb);
}
});
}
@Override
public void WB() {
runOnUiThread(new Runnable() {
@Override
public void run() {
sendMultiMessage(title, shareUrl, disgest);
}
});
}
@Override
public void copy() {
//复制链接
ClipboardManager cm = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
// 将文本内容放到系统剪贴板里。
cm.setText(shareUrl);
ToastUtils.showShortToast("复制成功！");
}
});
shareDialog.show();
}
@Override
public void setTitle(String title) {
}
@Override
public void toActivity() {
}
@Override
public void finish() {
// PolicyDetailsActivity.this.finish();
}
@Override
public void download(String url) {
if (SDCardUtils.isSDCardEnable()) {
String[] split = url.split("/");
//文件名字
String fileName = split[split.length - 1];
RequestParams entity = new RequestParams(url);
// 设置断点续传
entity.setAutoResume(true);
entity.setSaveFilePath(Contasts.DIR_FILE + "/" + fileName);
x.http().get(
entity, new Callback.ProgressCallback() {
@Override
public void onSuccess(File result) {
ToastUtils.showShortToast("下载成功");
loadingProgress.dismissDialog();
try {
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.fromFile(result), getMIMEType(result));
startActivity(intent);
} catch (Exception e) {
ToastUtils.showShortToast("请安装相关插件");
}
}
@Override
public void onError(Throwable ex, boolean isOnCallback) {
}
@Override
public void onCancelled(CancelledException cex) {
}
@Override
public void onFinished() {
}
@Override
public void onWaiting() {
loadingProgress = new LoadingProgress(PolicyDetailsActivity.this);
loadingProgress.showDialog("正在下载中...");
}
@Override
public void onStarted() {
}
@Override
public void onLoading(long total, long current, boolean isDownloading) {
}
});
} else {
ToastUtils.showShortToast("SD卡不可用");
}
}
}), "android"); import android.webkit.JavascriptInterface;
public class JSJavaSprict {
private JsInterface jsInterface;
public JSJavaSprict(JsInterface jsInterface) {
this.jsInterface = jsInterface;
}
//windows.android.startShare('1223')
// 被JS调用的方法必须加入@JavascriptInterface注解
@JavascriptInterface
public void startShare(String shareUrl, String title, String thumb, String disgest) {
jsInterface.starShare(shareUrl, title, thumb, disgest);
}
//windows.android.setTitle('1223')
@JavascriptInterface
public void setTitle(String msg) {
jsInterface.setTitle(msg);
}
@JavascriptInterface
public void startSign(String type) {
// LogUtils.d(type);
if ("2".equals(type)) {
jsInterface.toActivity();
} else {
jsInterface.finish();
}
}
/**
* 下载文件
*
* @param url
*/
@JavascriptInterface
public void startdownload(String url) {
jsInterface.download(url);
}
}public interface JsInterface {
/**
* 地址 标题 缩略图 摘要
*
* @param shareUrl
* @param title
* @param thumb
* @param disgest
*/
void starShare(String shareUrl, String title, String thumb, String disgest);
void setTitle(String title);
void toActivity();
void finish();
void download(String url);
}
弹出分享框。public class ShareDialog extends Dialog {
private GridView gvItem;
private TextView tvCancel;
private Context mContext;
private List mlist;
private ShareClickListen shareClickListen;
public ShareDialog(@NonNull Context context, ShareClickListen shareClickListen) {
super(context);
this.mContext = context;
this.shareClickListen = shareClickListen;
mlist = new ArrayList<>();
for (int i = 0; i < 6; i++) {
mlist.add(i);
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setBackgroundDrawableResource(R.drawable.loc_background);
getWindow().setWindowAnimations(R.style.dialogstyle);
getWindow().getDecorView().setPadding(0, 0, 0, 0);
WindowManager.LayoutParams params = getWindow().getAttributes();
params.width = WindowManager.LayoutParams.FILL_PARENT;
params.height = WindowManager.LayoutParams.WRAP_CONTENT;
getWindow().setAttributes(params);
getWindow().setGravity(Gravity.BOTTOM);
setContentView(R.layout.dialog_share);
gvItem = findViewById(R.id.gv_item);
tvCancel = findViewById(R.id.tv_cancel);
gvItem.setAdapter(new CommonAdapter(mContext, mlist, R.layout.item_dialog_share) {
@Override
public void convert(ViewHolder helper, Integer item) {
ImageView ivIcon = helper.getView(R.id.iv_icon);
TextView tvIcon = helper.getView(R.id.tv_icon);
switch (item) {
case 0:
ivIcon.setImageResource(R.drawable.btn_friends);
tvIcon.setText("朋友圈");
break;
case 1:
ivIcon.setImageResource(R.drawable.btn_wx);
tvIcon.setText("微信好友");
break;
case 2:
ivIcon.setImageResource(R.drawable.btn_space);
tvIcon.setText("QQ空间");
break;
case 3:
ivIcon.setImageResource(R.drawable.btn_qq);
tvIcon.setText("QQ好友");
break;
case 4:
ivIcon.setImageResource(R.drawable.btn_wb);
tvIcon.setText("微博");
break;
case 5:
ivIcon.setImageResource(R.drawable.btn_link);
tvIcon.setText("复制链接");
break;
}
}
});
gvItem.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView parent, View view, int position, long id) {
switch (position) {
case 0:
shareClickListen.WXFriend();
break;
case 1:
shareClickListen.WXContacts();
break;
case 2:
shareClickListen.QQQzone();
break;
case 3:
shareClickListen.QQContacts();
break;
case 4:
shareClickListen.WB();
break;
case 5:
shareClickListen.copy();
break;
}
// sendMultiMessage();
}
});
tvCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dismiss();
}
});
}
public interface ShareClickListen {
void WXFriend();
void WXContacts();
void QQQzone();
void QQContacts();
void WB();
void copy();
}
} 4.当我们点击js中分享按钮时，调用startShare()方法。
点击下载时，调用download()方法。
5.第三方分享。
初始化微博、腾讯、微信方法。将平台申请的key值替换。
AuthInfo mAuthInfo = new AuthInfo(this, Contasts.APP_KEY, Contasts.REDIRECT_URL, Contasts.SCOPE);//微博
WbSdk.install(this, mAuthInfo);
WbShareHandler wbShareHandler = new WbShareHandler((Activity) this);IWXAPI iwxapi = WXAPIFactory.createWXAPI(this, Contasts.WX_APP_KEY, true);//微信 iwxapi.registerApp(Contasts.WX_APP_KEY); // Tencent类是SDK的主要实现类，开发者可通过Tencent类访问腾讯开放的OpenAPI。 // 其中APP_ID是分配给第三方应用的appid，类型为String。
Tencent mTencent = Tencent.createInstance(Contasts.QQ_APP_ID, this.getApplicationContext());//腾讯①微信分享
public void shareWeixin(int type, String shareUrl, String title, String disgest) {
WXWebpageObject wxWebpageObject = new WXWebpageObject();
wxWebpageObject.webpageUrl = shareUrl;
WXMediaMessage msg = new WXMediaMessage();
msg.title = title;
msg.description = disgest;
msg.mediaObject = wxWebpageObject;
// Bitmap thumb = BitmapFactory.decodeResource(getResources(), R.mipmap.icon_touxiang);
// Bitmap thumbBmp = Bitmap.createScaledBitmap(thumb, THUMB_SIZE, THUMB_SIZE, true);
// thumb.recycle();
// msg.thumbData = Utils.bmpToByteArray(thumb, true);
SendMessageToWX.Req req = new SendMessageToWX.Req();
req.transaction = "windomZZ";
req.message = msg;
if (type == 0) {
req.scene = SendMessageToWX.Req.WXSceneTimeline;
} else {
req.scene = SendMessageToWX.Req.WXSceneSession;
}
iwxapi.sendReq(req);
}②微博分享
/**
* 第三方应用发送请求消息到微博，唤起微博分享界面。
*
* @param title
* @param shareUrl
* @param disgest
*/
private void sendMultiMessage(String title, String shareUrl, String disgest) {
WeiboMultiMessage weiboMessage = new WeiboMultiMessage();
WebpageObject mediaObject = new WebpageObject();
mediaObject.identify = Utility.generateGUID();
mediaObject.title = title;
mediaObject.description = disgest;
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.mipmap.ic_launcher);
// 设置 Bitmap 类型的图片到视频对象里 设置缩略图。 注意：最终压缩过的缩略图大小不得超过 32kb。
mediaObject.setThumbImage(bitmap);
mediaObject.actionUrl = shareUrl;
mediaObject.defaultText = title;
weiboMessage.mediaObject = mediaObject;
wbShareHandler.shareMessage(weiboMessage, false);
}
在分享的界面实现WbShareCallback
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
wbShareHandler.doResultIntent(intent, this);
}
@Override
public void onWbShareSuccess() {
ToastUtils.showShortToast("分享成功");
}
@Override
public void onWbShareCancel() {
ToastUtils.showShortToast("分享取消");
}
@Override
public void onWbShareFail() {
}③QQ好友及QQ空间分享
private void sendQQ(String title, String digest, String shareUrl, String thumb) {
final Bundle params = new Bundle();
params.putInt(QQShare.SHARE_TO_QQ_KEY_TYPE, QQShare.SHARE_TO_QQ_TYPE_DEFAULT);
params.putString(QQShare.SHARE_TO_QQ_TITLE, title);
params.putString(QQShare.SHARE_TO_QQ_SUMMARY, digest);
params.putString(QQShare.SHARE_TO_QQ_TARGET_URL, shareUrl);
params.putString(QQShare.SHARE_TO_QQ_IMAGE_URL, thumb);
params.putString(QQShare.SHARE_TO_QQ_APP_NAME, "智汇郑州");
// params.putInt(QQShare.SHARE_TO_QQ_EXT_INT, 1);
mTencent.shareToQQ(PolicyDetailsActivity.this, params, this);
}
private void shareToQzone(String title, String digest, String thumb, String shareUrl) {
//分享类型
final Bundle params = new Bundle();
params.putInt(QzoneShare.SHARE_TO_QZONE_KEY_TYPE, QzoneShare.SHARE_TO_QZONE_TYPE_IMAGE_TEXT);
params.putString(QzoneShare.SHARE_TO_QQ_TITLE, title);//必填
params.putString(QzoneShare.SHARE_TO_QQ_SUMMARY, thumb);//选填
params.putString(QzoneShare.SHARE_TO_QQ_TARGET_URL, shareUrl);//必填
ArrayList mlist = new ArrayList<>();
mlist.add(thumb);
params.putStringArrayList(QzoneShare.SHARE_TO_QQ_IMAGE_URL, mlist);
mTencent.shareToQzone(PolicyDetailsActivity.this, params, this);
}
当前activity实现IUiListener接口
@Override
public void onComplete(Object o) {
ToastUtils.showShortToast("分享成功");
}
@Override
public void onError(UiError uiError) {
switch (uiError.errorCode) {
}
}
@Override
public void onCancel() {
ToastUtils.showShortToast("分享取消");
}
//分享回调
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
Tencent.handleResultData(data, this);
}