写了简单Android环境下基于webview的浏览器，实现划屏切换页面的手势，在一个activity里webview的缓冲内切换的。并测试下调用系统拍照的功能
MVC模式（Model-View-Controller）
1.WebView的设置部分
View Code
1
private
void
showViews() {
2
//
TODO Auto-generated method stub
3
mGestureDetector
=
new
GestureDetector(
this
);
//
实例化手势对象
4
wv_vm.getSettings().setSupportZoom(
true
);
//
启用页面的缩放
5
wv_vm.getSettings().setBuiltInZoomControls(
true
);
//
启用页面缩放的按钮
6
wv_vm.getSettings().setJavaScriptEnabled(
true
);
//
启用javascript支持
7
wv_vm.loadUrl(
"
http://www.cnblogs.com/pxue/
"
);
//
加载网址
8
9
wv_vm.setOnTouchListener(
this
);
//
监听触摸事件
10
wv_vm.setClickable(
true
);
11
wv_vm.setLongClickable(
true
);
12
13
14
mGestureDetector.setIsLongpressEnabled(
true
);
15
16
17
wv_vm.setWebViewClient(
new
HelloWebViewClient());
//
实现点击加载页面在本webview内载入
18
wv_vm.setFocusable(
true
);
19
wv_vm.requestFocus();
20
21
}
在WebView加载新开的页面，是重写了android.webkit.WebViewClient
View Code
1
private
class
HelloWebViewClient
extends
WebViewClient {
2
@Override
3
public
boolean
shouldOverrideUrlLoading(WebView view, String url) {
4
view.loadUrl(url);
5
return
true
;
6
}
7
}
2.划屏手势部分
监听触摸时间传给手势对象
View Code
1
@Override
2
public
boolean
onTouch(View v, MotionEvent event) {
3
//
TODO Auto-generated method stub
4
//
Toast.makeText(this, "onTouch", Toast.LENGTH_SHORT).show();
5
return
mGestureDetector.onTouchEvent(event);
6
}
重写了划动事件
View Code
1
@Override
2
public
boolean
onFling(MotionEvent e1, MotionEvent e2,
float
velocityX,
3
float
velocityY) {
4
//
TODO Auto-generated method stub
5
if
(e1.getX()
-
e2.getX()
>
SWIPE_MIN_DISTANCE
6
&&
Math.abs(velocityX)
>
SWIPE_THRESHOLD_VELOCITY) {
7
wv_vm.goBack();
8
}
else
if
(e2.getX()
-
e1.getX()
>
SWIPE_MIN_DISTANCE
9
&&
Math.abs(velocityX)
>
SWIPE_THRESHOLD_VELOCITY) {
10
11
wv_vm.goForward();
12
}
13
return
false
;
14
}
变量、常量的声明
View Code
1
private
GestureDetector mGestureDetector;
2
3
private
static
final
int
SWIPE_MIN_DISTANCE
=
120
;
4
private
static
final
int
SWIPE_THRESHOLD_VELOCITY
=
200
;
3.调用系统拍照功能部分
View Code
1
private
void
setListensers() {
2
//
TODO Auto-generated method stub
3
Intent intent
=
new
Intent(MediaStore.ACTION_IMAGE_CAPTURE);
4
startActivityForResult(intent,
1
);
5
6
}
7
8
private
void
findViews() {
9
//
TODO Auto-generated method stub
10
img_pic
=
(ImageView)findViewById(R.id.img_pic);
11
12
}
13
14
protected
void
onActivityResult(
int
requestCode,
int
resultCode, Intent data)
15
{
16
if
(requestCode
==
1
)
17
{
18
if
(resultCode
==
Activity.RESULT_OK)
19
{
20
//
拍照Activity保存图像数据的key是data，返回的数据类型是Bitmap对象
21
Bitmap cameraBitmap
=
(Bitmap) data.getExtras().get(
"
data
"
);
22
//
在ImageView组件中显示拍摄的照片
23
img_pic.setImageBitmap(cameraBitmap);
24
}
25
}
26
super
.onActivityResult(requestCode, resultCode, data);
27
}
小demo的源码本来上传到csdn了，可在我上传的资源就是找不到，可能在审核，等我之后不上下载链接吧
想要demo源码也可以邮件给我
邮箱：
625557711@qq.com
下载链接：
http://download.csdn.net/source/3248263
转载于:https://www.cnblogs.com/pxue/archive/2011/05/04/2037031.html
