一、在布局layout中添加手势控件
<?xml version="1.0" encoding="utf-8"
?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<android.gesture.GestureOverlayView
android:layout_width="fill_parent"
android:layout_height="0dip" android:layout_weight="1.0"
android:gestureStrokeType="multiple" android:id="@+id/gestures"
/>
</LinearLayout>
二、编码
public class MainActivity extends Activity {
private boolean success;
private GestureLibrary library;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//找到手势库
library = GestureLibraries.fromRawResource(this, R.raw.gestures);
//加载手势库
success = library.load();
GestureOverlayView gestureView = (GestureOverlayView)this.findViewById(R.id.gestures);//已经把手势文件放在raw文件夹下
gestureView.addOnGesturePerformedListener(new GestureListener());
}
private final class GestureListener implements OnGesturePerformedListener{
@Override
public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
if(success){
//从手势库中查找匹配的手势,最匹配的记录会放在最前面
ArrayList<Prediction> predictions = library.recognize(gesture);
if(!predictions.isEmpty()){
Prediction prediction = predictions.get(0);//最匹配的放在最前，匹配分为1至10
Log.i("MainActivity", "score:"+ prediction.score);
if(prediction.score>3){//匹配的级别
if("agree".equals(prediction.name)){//匹配的名字
android.os.Process.killProcess(android.os.Process.myPid());
}else if("5556".equals(prediction.name)){
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:5556"));
startActivity(intent);
}
}
}
}
}
}
}