How to write and read text from gesture input in android?
Let's say I want to spell a word named "test" using a gesture on the screen and then segment it as letters (t, e, s, t). I googled for this and didn't find a useful link for spelling a word using a gesture and then separating letters from the word. Any helpful link or tutorial on this topic would be appreciated. (Currently I am doing code that only write a letter at a time, the word cannot, and then how to segment this text, I cannot figure out)
my code
public class GestureTest extends Activity implements OnGesturePerformedListener {
private static GestureLibrary gesturerLib;
TextView showText1;
TextView showText2;
EditText firstEditText;
ArrayList<String> bindList;
ArrayList<Prediction> result;
ListView listViewShow;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.activity_gesture_test);
GestureOverlayView gestureOverLayerView = new GestureOverlayView(this);
//View inflate = getLayoutInflater().inflate(R.layout.activity_gesture_test,null);
View inflate = getLayoutInflater().inflate(R.layout.activity_gesture_test,null);
gestureOverLayerView.addView(inflate);
gestureOverLayerView.addOnGesturePerformedListener(this);
gesturerLib = GestureLibraries.fromRawResource(getApplicationContext(), R.raw.gestures);
if(!gesturerLib.load()){
finish();
}
setContentView(gestureOverLayerView);
}
@Override
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
// TODO Auto-generated method stub
showText1 = (TextView)findViewById(R.id.listView1);
result = gesturerLib.recognize(gesture);
String point=null;
String firstLetter=null;
StringBuffer sb = new StringBuffer();
String value1 = "";
if(result.size() > 0 && result.get(0).score>1.0){
value1 += result.get(0).name;
for(int j= 0;j< prescriptionNames.length;j++){
// prescriptionName is String[]
firstLetter = prescriptionNames[j];
Log.i("THE STRING[] VALUE",firstLetter );
if( firstLetter.startsWith(value1)){
showText1.setText(firstLetter);
}
}
}
for example link https://play.google.com/store/apps/details?id=com.visionobjects.stylusmobile.v3_2_store
I want to write a word on screen with breaks example: write test on screen, but I can only write t, if I write the second letter e, the first letter disappears .. that's my problem
I hope you can understand
Please tell me that this is possible or something is wrong.
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In your activity:
GestureLibrary gLibrary;
GestureOverlayView mView;
String txtToDisplay="";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
gLibrary = GestureLibraries.fromRawResource(this, R.raw.gestures);
if (gLibrary != null) {
if (!gLibrary.load()) {
Log.e("GestureSample", "Gesture library was not loaded…");
finish();
} else {
mView = (GestureOverlayView) findViewById(R.id.gestures);
mView.addOnGesturePerformedListener(this);
}
}
}
@Override
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
ArrayList<Prediction> predictions = gLibrary.recognize(gesture);
// one prediction needed
if (predictions.size() > 0) {
Prediction prediction = predictions.get(0);
// checking prediction
if (prediction.score > 1.0) {
txtToDisplay+=prediction.name;
yourTextView.setText(txtToDisplay);
}
}
}
}
You need to put this in XML so that you recognize the recognized gestures:
<android.gesture.GestureOverlayView
android:id="@+id/gestures"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:gestureColor="#2a69a5"
android:uncertainGestureColor="#e2e2e2" >
</android.gesture.GestureOverlayView>
And you need a gesture library. Follow the first step of this tutorial: Android Gestures Tutorial
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