android webview组件的使用

MainPage.java

package com.example.administrator.carcontroller;

import android.content.pm.ActivityInfo;
import android.content.res.Configuration;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.TextView;

//import com.zerokol.views.JoystickView;

public class MainPage extends AppCompatActivity {
private WebView webView;

//private TextView angleTextView;
//private TextView powerTextView;
//private TextView directionTextView;
// Importing also other views
//private JoystickView joystick;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if(this.getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT){
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);//是屏幕进行横屏操作
}
setContentView(R.layout.activity_main_page);
init();
/*
angleTextView = (TextView) findViewById(R.id.angleTextView);

powerTextView = (TextView) findViewById(R.id.powerTextView);
directionTextView = (TextView) findViewById(R.id.directionTextView);
//Referencing also other views
joystick = (JoystickView) findViewById(R.id.joystickView);

//Event listener that always returns the variation of the angle in degrees, motion power in percentage and direction of movement
joystick.setOnJoystickMoveListener(new JoystickView.OnJoystickMoveListener() {

@Override
public void onValueChanged(int angle, int power, int direction) {
// TODO Auto-generated method stub
angleTextView.setText(" " + String.valueOf(angle) + "°");
powerTextView.setText(" " + String.valueOf(power) + "%");
switch (direction) {
case JoystickView.FRONT:
directionTextView.setText(R.string.front_lab);
break;
case JoystickView.FRONT_RIGHT:
directionTextView.setText(R.string.front_right_lab);
break;
case JoystickView.RIGHT:
directionTextView.setText(R.string.right_lab);
break;
case JoystickView.RIGHT_BOTTOM:
directionTextView.setText(R.string.right_bottom_lab);
break;
case JoystickView.BOTTOM:
directionTextView.setText(R.string.bottom_lab);
break;
case JoystickView.BOTTOM_LEFT:
directionTextView.setText(R.string.bottom_left_lab);
break;
case JoystickView.LEFT:
directionTextView.setText(R.string.left_lab);
break;
case JoystickView.LEFT_FRONT:
directionTextView.setText(R.string.left_front_lab);
break;
default:
directionTextView.setText(R.string.center_lab);
}
}
}, JoystickView.DEFAULT_LOOP_INTERVAL);
*/
}
private void init() {

webView = (WebView) findViewById(R.id.webView);
//webView.loadUrl("http://192.168.1.1:8080/?action=stream");
webView.loadUrl("https://www.baidu.com");
WebSettings settings = webView.getSettings();
settings.setJavaScriptEnabled(true);
webView.setWebViewClient(new WebViewClient(){
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
//返回值是true的时候控制去WebView打开，为false调用系统浏览器或第三方浏览器
view.loadUrl(url);
return true;
}
});
}

}


activity_main_page.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:orientation="vertical"
tools:context="com.example.administrator.carcontroller.MainPage">
<WebView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/webView">
</WebView>
</RelativeLayout>


AndroidMainFest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.administrator.carcontroller">
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/Theme.AppCompat.DayNight.NoActionBar"
>

<activity android:name=".MainPage">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>
</activity>
</application>

</manifest>