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package com.wgscd.gwang.myapplication;
/**
- Created by gwang on 2017/3/14.
*/
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.webkit.JavascriptInterface;
import android.webkit.WebView;
import org.json.JSONObject;
public class JsOperator {
private Context context;
public JsOperator(Context context) {
this.context = context;
}
/**
* 弹出消息对话框
*/
@JavascriptInterface
public void showDialog(String message) {
AlertDialog.Builder builder = new Builder(context);
builder.setMessage(message);
builder.setTitle("提示");
builder.setPositiveButton("确认", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton("取消", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
@JavascriptInterface
public void getPageResult(String pageNumber) {
AlertDialog.Builder builder = new Builder(context);
builder.setMessage("" + pageNumber);
builder.setTitle("提示");
builder.setPositiveButton("确认", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
builder.setNegativeButton("取消", new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
builder.create().show();
}
@JavascriptInterface
public static void showAndroid(Activity act,final WebView webView, String msg){
final String info = "来自手机内的内容！！！";
act.runOnUiThread(new Runnable(){
@Override
public void run() {
webView.loadUrl("javascript:add('"+info+"')");
}
});
}
/**
* 获取登录的用户名和密码
* @return JSON格式的字符串
*/
@JavascriptInterface
public String getLoginInfo(){
try{
JSONObject login = new JSONObject();
login.put("Username", "YLD");
login.put("Password", "111");
return login.toString();
}catch(Exception e){
e.printStackTrace();
}
return null;
}
}
----------MainActivity---------------------
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
btn1 = (Button) findViewById(R.id.btn1);
img = (ImageView) findViewById(R.id.img);
img2 = (ImageView) findViewById(R.id.img2);
panelLeft=(LinearLayout) findViewById(R.id.panelLeft) ;
web=(WebView) findViewById(R.id.web);
web.getSettings().setDefaultTextEncodingName("UTF-8") ;
web.getSettings().setJavaScriptEnabled(true);
web.getSettings().setAllowFileAccess(true);
web.addJavascriptInterface(new JsOperator(MainActivity.this),"JsInteraction");
//web.loadData("<html><body color='red'>test<input type='button' value='click me' onclick='showMsg()' /></body><script type="text/javascript">function showMsg(){JsInteraction.showDialog("Login start...");}</script></html>", "text/html", "UTF-8");
// web.loadData( getFromAssets("pageListTemplate.txt"), "text/html", "UTF-8");
String s = getFromAssets("pageListTemplate.txt");//read text from Assets
web.loadData( s, "text/html", "UTF-8");
Toast.makeText(MainActivity.this, "s:" + s, Toast.LENGTH_SHORT).show();
//shareMsg("active ttt","ttttttt","test http://www.qq.com/ 测试","/assets/1.jpg");
btn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
FrameLayout.LayoutParams ll = new FrameLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT);
int w=-128;
ll.setMargins(80, 0, 0, 0);
panelLeft.setVisibility(View.INVISIBLE);
// panelLeft.setLayoutParams(ll);
// panelLeft.startAnimation( a2);
// JsOperator.showAndroid(act,web,"<p>g----------</p>");
sData="'<br>ffgfgff<p>ddddddddddddddddd</p>'";
web.loadUrl("javascript:add("+ sData +")");
}
});
/**
* 从Assets中读取图片
*/
private Bitmap getImageFromAssetsFile(String fileName)
{
Bitmap image = null;
AssetManager am = getResources().getAssets();
try
{
InputStream is = am.open(fileName);
image = BitmapFactory.decodeStream(is);
is.close();
}
catch (IOException e)
{
e.printStackTrace();
}
return image;
}
//从Assets中读取text
public String getFromAssets(String fileName){
String line="";
String Result="";
try {
InputStreamReader inputReader = new InputStreamReader( getResources().getAssets().open(fileName) );
BufferedReader bufReader = new BufferedReader(inputReader);
while((line = bufReader.readLine()) != null)
Result += line;
} catch (Exception e) {
e.printStackTrace();
}
return Result;
}
}