0
我正在嘗試使用GestureBuilder嚮應用添加手勢支持。我已閱讀了一些教程，並認爲我的代碼是正確的，但該應用程序仍不會響應通過GestureBuilder創建和導入的手勢。它確實響應我也設置的doubleTap手勢。Android手勢生成器不工作
我認爲錯誤可能是GestureOverlayView所以這裏的設置是我的看法首先代碼，
<?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" >
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/scrollviewtexture" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="53dp"
android:text="@string/app_name"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="9pt"
android:typeface="sans" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/textView1"
android:layout_centerHorizontal="true"
android:text="@string/swipe"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="#FFFFFF"
android:textSize="6pt" />
<TextView
android:id="@+id/textView4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:height="40dp"
android:text="@string/app_name"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="7pt" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/textView4"
android:layout_centerHorizontal="true"
android:height="40dp"
android:text="@string/type"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="8pt" />
<android.gesture.GestureOverlayView
android:id="@+id/gestures"
android:layout_width="fill_parent"
android:layout_height="0dip" />
</RelativeLayout>
</LinearLayout>
主要活動代碼如下，
import java.io.IOException;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.graphics.Typeface;
import android.os.Bundle;
import android.text.ClipboardManager;
import android.view.GestureDetector;
import android.view.GestureDetector.OnDoubleTapListener;
import android.view.MotionEvent;
import android.view.Window;
import android.widget.TextView;
import android.widget.Toast;
import com.mystraldesign.memorable.PassGen;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.gesture.GestureOverlayView.OnGesturePerformedListener;
import android.gesture.Prediction;
import android.util.Log;
public class MemorableActivity extends Activity implements android.view.GestureDetector.OnGestureListener,OnDoubleTapListener,OnGesturePerformedListener
{
//Define text views
private TextView textView1;
private TextView textView2;
private TextView textView3;
private TextView textView4;
private GestureLibrary mLibrary;
//Previous password holder
private String prevPass;
//Gesture Detectors
private GestureDetector gTap;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
gTap = new GestureDetector(this,(android.view.GestureDetector.OnGestureListener) this);
//Remove title bar
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
mLibrary = GestureLibraries.fromRawResource(this, R.raw.gest);
if (!mLibrary.load()){
finish();
}
GestureOverlayView gestures = (GestureOverlayView) findViewById(R.id.gestures);
gestures.addOnGesturePerformedListener(this);
//Define textView
textView1 = (TextView) findViewById(R.id.textView1);
textView2 = (TextView) findViewById(R.id.textView2);
textView3 = (TextView) findViewById(R.id.textView3);
textView4 = (TextView) findViewById(R.id.textView4);
//Load font file
Typeface type = Typeface.createFromAsset(getAssets(),"fonts/optima.ttf");
//Set various textViews to font
textView1.setTypeface(type);
textView2.setTypeface(type);
textView3.setTypeface(type);
textView4.setTypeface(type);
prevPass = "Memorable";
}
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture){
ArrayList<Prediction> predictions = mLibrary.recognize(gesture);
if (predictions.size() > 0 && predictions.get(0).score > 1.0) {
String result = predictions.get(0).name;
if ("left".equalsIgnoreCase(result)){
Context context = getApplicationContext();
CharSequence text = "left";
int duration = Toast.LENGTH_SHORT;
//Display message
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}else if ("right".equalsIgnoreCase(result)){
Context context = getApplicationContext();
CharSequence text = "right";
int duration = Toast.LENGTH_SHORT;
//Display message
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}else if ("up".equalsIgnoreCase(result)){
Context context = getApplicationContext();
CharSequence text = "up";
int duration = Toast.LENGTH_SHORT;
//Display message
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}else if ("down".equalsIgnoreCase(result)){
Context context = getApplicationContext();
CharSequence text = "down";
int duration = Toast.LENGTH_SHORT;
//Display message
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
}
}
public boolean onTouchEvent(MotionEvent me)
{
this.gTap.onTouchEvent(me);
return super.onTouchEvent(me);
}
public boolean onDown(MotionEvent e) {
return false;
}
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
float velocityY)
{
return false;
}
public void onLongPress(MotionEvent e)
{
}
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,
float distanceY)
{
return false;
}
public void onShowPress(MotionEvent e) {
}
public boolean onSingleTapUp(MotionEvent e)
{
return false;
}
//Method to copy password - Depreciated
public boolean onDoubleTap(MotionEvent e) {
return false;
}
//Method to copy password
public boolean onDoubleTapEvent(MotionEvent e) {
//clipboard shite
ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE);
clipboard.setText(textView1.getText());
//Message about coping
Context context = getApplicationContext();
CharSequence text = "Password has been copied to clipboard.";
int duration = Toast.LENGTH_SHORT;
//Display message
Toast toast = Toast.makeText(context, text, duration);
toast.show();
return false;
}
public boolean onSingleTapConfirmed(MotionEvent e) {
return false;
}
}