Ok. Here's some more information about my App.
I'm going to create a keyboard app. Or rather an App where you can
define your own keyboard. Therefore I have two Activities A and B.
Activity A:
Here I want to create a single key. This is currently realized by
configuring a button.
The buttons size can be customized with a progress bar. One for height
and one for width. Also some letters/text can be added.
Then, height, width and the text of the button is send via an Intent
to Activity B.
Activity B:
On Activity B the current Button gets its properties out of the Intent
and via Gesture you can set it somewhere on the screen.
Afterwards the button get saved in an Arraylist.
Everytime I call Activity B the Arraylist is read and the buttons
should be shown on their position as before defined.
So the screen should be filled with buttons until the keyboard is
ready.
Then I want to create the keyboard (but I have no idea how yet ;) )
But as mentioned before, after reading the Arraylist the buttons loose
their position.
And here's the whole code of Activity B:
package example.com.fpa;
import java.util.ArrayList;
import java.util.Iterator;
import android.app.Activity;
import android.content.Intent;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.gesture.Prediction;
import android.gesture.GestureOverlayView.OnGesturePerformedListener;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup.LayoutParams;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class keyboard_view extends Activity implements
OnGesturePerformedListener {
protected Button key_button;
protected GestureLibrary mLibrary;
// protected keys other_keys;
protected int position;
public static ArrayList<Button> keyList = new ArrayList<Button>();
public Iterator iter;
public static RelativeLayout rel_layout;
/**
* @param args
*/
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.keyboard_view);
final Intent intent = new Intent(this, fpa.class);
rel_layout = new RelativeLayout(this);
final Button back_button = (Button)
findViewById(R.id.back_button);
final Button accept_button = (Button)
findViewById(R.id.accept_button);
key_button = (Button) findViewById(R.id.key_button);
mLibrary = GestureLibraries.fromRawResource(this,
R.raw.gestures);
if (!mLibrary.load()) {
finish();
}
GestureOverlayView gestures = (GestureOverlayView)
findViewById(R.id.gestures);
gestures.addOnGesturePerformedListener(this);
key_button.setHeight(getIntent().getExtras().getInt("height"));
key_button.setWidth(getIntent().getExtras().getInt("width"));
key_button.setText(getIntent().getExtras().getCharSequence("letter"));
back_button.setOnClickListener(new OnClickListener(){
public void onClick(View v){
//Perform action on clicks
intent.putExtra("height",
key_button.getHeight());
intent.putExtra("width",
key_button.getWidth());
startActivity(intent);
}
});
accept_button.setOnClickListener(new OnClickListener(){
public void onClick(View v){
//Perform action on clicks
keyList.add(key_button);
intent.putExtra("height",
key_button.getHeight());
intent.putExtra("width",
key_button.getWidth());
startActivity(intent);
}
});
if(keyList.isEmpty() == false){
for (iter = keyList.iterator(); iter.hasNext();){
Button k = (Button) iter.next();
Button ok = new Button(this);
ok.setHeight(k.getHeight());
Log.i("Button K", "Höhe: " + k.getHeight());
Log.i("Button OK", "Höhe: " + ok.getHeight());
ok.setWidth(k.getWidth());
Log.i("Button K", "Weite: " + k.getWidth());
Log.i("Button OK", "Weite: " + ok.getWidth());
ok.setText(k.getText());
ok.layout(k.getLeft(), k.getTop(), k.getRight(),
k.getBottom());
Log.i("Button OK", "Links: " + ok.getLeft());
Log.i("Button OK", "Oben: " + ok.getTop());
Log.i("Button OK", "Rechts: " + ok.getRight());
Log.i("Button OK", "Unten: " + ok.getBottom());
ok.setVisibility(1);
rel_layout.removeView(ok);
rel_layout.addView(ok);
}
}
}//endOnCreate
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// outState.putStringArrayList("LISTE", keyList); // adding a
string in bundle
// Toast.makeText(this, "Activity state saved",
Toast.LENGTH_LONG).show();
}
public void onResume(){
super.onResume();
if(keyList.isEmpty() == true || keyList == null)
Toast.makeText(keyboard_view.this, "leer",
Toast.LENGTH_SHORT).show();
else
Toast.makeText(keyboard_view.this, "voll",
Toast.LENGTH_SHORT).show();
}
@Override
public void onGesturePerformed(GestureOverlayView overlay, Gesture
gesture) {
// TODO Auto-generated method stub
ArrayList<Prediction> predictions = mLibrary.recognize(gesture);
int width = key_button.getWidth();
int display_width =
getWindowManager().getDefaultDisplay().getWidth();
int start_width = display_width - width;
int height = key_button.getHeight();
int display_height =
getWindowManager().getDefaultDisplay().getHeight();
int start_height = display_height - 130 - height;
// position = key_button.getLocationInWindow(FOCUSED_STATE_SET);
// We want at least one prediction
if (predictions.size() > 0) {
Prediction prediction = predictions.get(0);
// We want at least some confidence in the result
if (prediction.name.equals("add_key_left")) {
key_button.layout(10, 10, 10 + width, 10 +
height);
Toast.makeText(keyboard_view.this,
"Ausrichtung: " +
key_button.getLeft() + "Rechts: " + key_button.getRight() + "Oben: " +
key_button.getTop() + "Unten: " + key_button.getBottom(),
Toast.LENGTH_SHORT).show();
}
if(prediction.name.equals("add_key_downleft")){
key_button.layout(10, start_height, 10 + width,
start_height +
height);
Toast.makeText(keyboard_view.this,
"Ausrichtung: " +
key_button.getLeft() + "Rechts: " + key_button.getRight() + "Oben: " +
key_button.getTop() + "Unten: " + key_button.getBottom(),
Toast.LENGTH_SHORT).show();
}
if(prediction.name.equals("add_key_right")){
key_button.layout(start_width, 10, start_width
+ width , 10 +
height);
Toast.makeText(keyboard_view.this,
"Ausrichtung: " +
key_button.getLeft() + "Rechts: " + key_button.getRight() + "Oben: " +
key_button.getTop() + "Unten: " + key_button.getBottom(),
Toast.LENGTH_SHORT).show();
}
if(prediction.name.equals("add_key_downright")){
key_button.layout(start_width, start_height,
start_width + width,
start_height + height);
Toast.makeText(keyboard_view.this,
"Ausrichtung: " +
key_button.getLeft() + "Rechts: " + key_button.getRight() + "Oben: " +
key_button.getTop() + "Unten: " + key_button.getBottom(),
Toast.LENGTH_SHORT).show();
}
}
}//endGesturePerformed
}//endClass
Hope this helps ^^"
Any kind of help is appreciated !
On 8 Feb., 20:25, Kritzli <[email protected]> wrote:
> > You cannot pass a Button via an Intent.
>
> You're right. I only pass the height, width and text of the button I
> customized in Activity A.
>
> > Activity B cannot modify the UI of Activity A. Activity B cannot safely
> > reuse the widgets of Activity A.
>
> I don't want to modify the UI of Activity A. Activity B has its own UI
> or rather Activity B's Ui is made of those buttons. Therefore I want
> to move and show the buttons on Activity B.
>
> Maybe I schould post some more code for clarification ?
>
> On 8 Feb., 14:14, "Mark Murphy" <[email protected]> wrote:
>
> > > There are two Activities (Activity A and B). At Activity A I customize
> > > a button and pass it on Activity B via an intent.
>
> > You cannot pass a Button via an Intent.
>
> > > On Activity B I move
> > > the button somewhere on the screen.
>
> > Activity B cannot modify the UI of Activity A. Activity B cannot safely
> > reuse the widgets of Activity A.
>
> > > Any suggestion and hints how this could be solved would be
> > > appreciated !
>
> > Give Activity B its own widgets, independent of those from Activity A,
> > positioned where they are supposed to be from the outset.
>
> > --
> > Mark Murphy (a Commons Guy)http://commonsware.com
> > Android App Developer Books:http://commonsware.com/books.html
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