dispatchTouchEvent

by Business Talk » Sat, 09 Jan 2010 02:15:29 GMT


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 How can I programmatically press/release a button? I was playing with
the button.dispatchTouchEvent(motionEvent); but failed to
programmatically generate  the MotionEvent to be passed to the
dispatchTouchEvent



dispatchTouchEvent

by Business Talk » Sat, 09 Jan 2010 02:37:37 GMT


 I found the way to generate the MotionEvent, and it's
MotionEvent.obtain



> dispatchTouchEvent


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dispatchTouchEvent

by jbo » Wed, 27 Jan 2010 04:28:07 GMT


 i , i have a qustion about onTouch event, I have a layout that
consist of 2 elements, a WebView and on top of it a TextView and then
a custom view, that expand all over the screen and is transparent.
With these i want to carch touch events and delegate to the correct
widget either TextView or WebView depending on the touch event
position (MoseEvent).

[code]
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">

<TextView
android:id="@+id/label"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Type here:"/>

<WebView android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="@id/label"/>

</RelativeLayout>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">

<com.frame.TransparentPanel android:id="@+id/transparent_panel"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>

</LinearLayout>

</FrameLayout>
[/code]


[code]
public class TransparentPanel extends LinearLayout
{
private Paint innerPaint, borderPaint ;
private List<PointF> pointsToDraw = new ArrayList<PointF>();
private WebView webview;
private Paint touchPaint;

public TransparentPanel(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}

public TransparentPanel(Context context) {
super(context);
init();
}

private void init() {
touchPaint = new Paint();
touchPaint.setARGB(255, 0, 0, 255);
touchPaint .setAntiAlias(true);
touchPaint .setStyle(Style.STROKE);
touchPaint .setStrokeWidth(2);

innerPaint = new Paint();
innerPaint.setARGB(0, 100, 75, 75); //gray
innerPaint.setAntiAlias(true);

borderPaint = new Paint();
borderPaint.setARGB(255, 255, 255, 255);
borderPaint.setAntiAlias(true);
borderPaint.setStyle(Style.STROKE);
borderPaint.setStrokeWidth(2);
}

public void setInnerPaint(Paint innerPaint) {
this.innerPaint = innerPaint;
}

public void setBorderPaint(Paint borderPaint) {
this.borderPaint = borderPaint;
}

@Override
public boolean onTouchEvent(MotionEvent



Other Threads

1. XML Layout Specification

Here's a layout from the DevGuide: 
http://developer.android.com/guide/topics/ui/declaring-layout.html

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/
android"
             android:layout_width="fill_parent"
             android:layout_height="fill_parent"
             android:orientation="vertical" >
   <TextView android:id="@+id/text"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="Hello, I am a TextView" />
   <Button android:id="@+id/button"
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="Hello, I am a Button" />
</LinearLayout>

- What does xmlns mean?
- What is the android:xxx sytnax all about?
- What does the "http://schemas.android.com/apk/res/android" do?
- Are there other values I might choose?  (ex. "http://
schemas.android.com/apk/res/iPhone")
- Can you create your own Layouts like the "LinearLayout"?
- Is there a list of available components like "Button", "TextView"?
- What does the @, the / and the + symbol do?
- Can I edit this directly in Eclipse with a graphical editor rather
than editing the xml text?

That's a lot of questions.  So let me sum these up into one simple
question:

Does anyone know a link to the specification for the XML Layout
Language for Android?

Thanks for any hints for a complete newbie.

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I have a problem :

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Mahi.

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