直接上源码吧,目前手势在实用程序中使用的还是比较少,没有被大量利用起来,所以这里简单的实现了添加手势,以及匹配手势:
//添加手势的后台代码
package com.lanxin.testtouch;
import android.content.Context;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import java.io.File;
import java.util.Date;
/**
* Created by Administrator on 2016/7/17 0017.
*/
public class addAcitvity extends AppCompatActivity {
private static final String TAG = "addAcitvityLog";
GestureOverlayView gov;
String filepath;
GestureLibrary mGesture;
Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
init();
}
private void init() {
mContext = this;
filepath = Environment.getExternalStorageDirectory()+"/lanxin/gesture";//保存目录
Log.d(TAG, filepath);
File file = new File(filepath);
if(!file.exists())
file.mkdirs();
gov = (GestureOverlayView)findViewById(R.id.gestureOverlayView);
gov.addOnGesturePerformedListener(new GestureOverlayView.OnGesturePerformedListener() {
@Override
public void onGesturePerformed(GestureOverlayView gestureOverlayView, Gesture gesture) {
Log.i(TAG, "onGesturePerformed:"+filepath);
if(gesture.getLength() > 1){
File mStoreFile = new File(filepath, "gesture");//创建一个文件
mGesture = GestureLibraries.fromFile(mStoreFile);//装载文件
mGesture.addGesture("new_test", gesture);//添加手势
boolean b = mGesture.save();//保存
String str = b ? "保存成功":"保存失败";
Log.d(TAG,str);
}
}
});
}
}
下面是匹配手势的后台代码:
package com.lanxin.testtouch;
import android.content.Context;
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.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Toast;
import java.io.File;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private static final String TAG = "GestureLog";
GestureOverlayView gov;
String filename;
GestureLibrary mGesture;
Context mContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
init();
}
private void init() {
mContext = this;
filename = Environment.getExternalStorageDirectory()+"/lanxin/gesture/gesture_1468729525348";
Log.d(TAG,filename);
mGesture = GestureLibraries.fromFile(filename);
if (!mGesture.load()) {
Toast.makeText(this, "Could not load " + filename, Toast.LENGTH_SHORT).show();
Intent intent = new Intent(this,addAcitvity.class);
startActivity(intent);
finish();
}
Log.v(TAG, ">>>>>>>mGesture>>>>>>>>>:");
Log.v(TAG, " 方向样式: " + mGesture.getOrientationStyle());
Log.v(TAG, " 顺序类型: " + mGesture.getSequenceType());
for( String gestureName : mGesture.getGestureEntries() ) {
Log.v(TAG, "For gesture " + gestureName);
int i = 1;
for( Gesture gesture : mGesture.getGestures(gestureName) ) {
Log.v(TAG, " " + i + ": 手势ID: " + gesture.getID());
Log.v(TAG, " " + i + ": 手势数量: " + gesture.getStrokesCount());
Log.v(TAG, " " + i + ": 手势长度: " + gesture.getLength());
i++;
}
}
Log.v(TAG, ">>>>>>>end>>>>>>>>>:");
gov = (GestureOverlayView)findViewById(R.id.gestureOverlayView);
gov.addOnGesturePerformedListener(new GestureOverlayView.OnGesturePerformedListener() {
@Override
public void onGesturePerformed(GestureOverlayView gestureOverlayView, Gesture gesture) {
Log.i(TAG, "onGesturePerformed");
ArrayList<Prediction> data = mGesture.recognize(gesture);//手势识别
//手势匹配
if(data.size() > 0){
Prediction pre = data.get(0);//读取数据
if (pre.score > 1.0) {
Toast.makeText(mContext, pre.name, Toast.LENGTH_SHORT).show();
for(int i=0;i < data.size();i++)
Log.v(TAG, "prediction " + data.get(i).name + " - score = " + data.get(i).score);
}
}
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
还有一个xml的布局代码:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_main" tools:context=".MainActivity">
<TextView android:text="Hello World!" android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textView" />
<android.gesture.GestureOverlayView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/gestureOverlayView"
android:layout_below="@+id/textView"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginTop="67dp"></android.gesture.GestureOverlayView>
</RelativeLayout>
