It is possible to punch through a webview with a custom view. Make sure
Internet and Camera permissions are set in the manifest.
The following will make a circular hole in the web page through which the
camera shows.
- rich
package com.optiv.cameraweb;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.PorterDuff;
import android.util.AttributeSet;
import android.view.View;
public class WebPunchThru extends View {
// This constructor is used when the class is built from an XML
resource.
public WebPunchThru(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
Path path = new Path();
path.addCircle(200.0f, 200.0f, 100.0f, Path.Direction.CW);
canvas.clipPath(path);
canvas.drawColor(Color.TRANSPARENT, PorterDuff.Mode.CLEAR); //
transparent windows
}
}
package com.optiv.cameraweb;
import java.io.IOException;
import android.app.Activity;
import android.hardware.Camera;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.webkit.WebView;
import android.webkit.WebViewClient;
public class CameraWebActivity extends Activity implements
SurfaceHolder.Callback{
WebView mWebView;
WebPunchThru webPunchThru;
SurfaceView surfaceView;
SurfaceHolder surfaceHolder;
Camera camera;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
surfaceView = (SurfaceView) findViewById(R.id.SurfaceView01);
surfaceHolder = surfaceView.getHolder();
surfaceHolder.addCallback(this);
surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
mWebView = (WebView) findViewById(R.id.WebView01);
mWebView.getSettings().setJavaScriptEnabled(true);
mWebView.loadUrl("http://www.google.com";);
webPunchThru = (WebPunchThru) findViewById(R.id.Punch01);
mWebView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String
url) {
mWebView.loadUrl(url);
return true;
}
});
}
@Override
public void onResume(){
camera = Camera.open();
super.onResume();
}
@Override
public void onPause(){
camera.stopPreview();
camera.release();
super.onPause();
}
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
try {
camera.setPreviewDisplay(holder);
} catch (IOException e) {
e.printStackTrace();
}
camera.startPreview();
}
public void surfaceCreated(SurfaceHolder holder) {
try {
camera.setPreviewDisplay(holder);
} catch (IOException e) {
e.printStackTrace();
}
camera.startPreview();
}
public void surfaceDestroyed(SurfaceHolder holder) {
camera.stopPreview();
}
}
.
>>
>> <?xml version="1.0" encoding="utf-8"?>
>
> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android";
>
> android:id="@+id/FrameLayout0x"
>
> android:layout_width="fill_parent"
>
> android:layout_height="fill_parent" >
>
>
>> <SurfaceView
>
> android:id="@+id/SurfaceView01"
>
> android:layout_width="fill_parent"
>
> android:layout_height="fill_parent" >
>
> </SurfaceView>
>
>
>> <WebView
>
>
>> android:id="@+id/WebView01"
>
> android:layout_width="fill_parent"
>
> android:layout_height="fill_parent"
>
> android:background= "#00000000" />
>
> <RelativeLayout
>
> android:id="@+id/RelativeLayout01"
>
> android:layout_width="fill_parent"
>
> android:layout_height="fill_parent" >
>
>
>> <com.optiv.cameraweb.WebPunchThru
>
> android:id="@+id/Punch01"
>
> android:layout_width="fill_parent"
>
> android:layout_height="fill_parent" />
>
> </RelativeLayout>
>
>
>>
>> </FrameLayout>
>
> > --------------------------------------------------------
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