摇一摇切图.apk

先上代码再说话！

清单文件加权限：

<uses-permission android:name="android.permission.VIBRATE"/>

布局文件：

 1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 2     xmlns:tools="http://schemas.android.com/tools"
 3     android:id="@+id/container"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     tools:context="com.example.shake.MainActivity"
 7     tools:ignore="MergeRootFrame"
 8     android:orientation="vertical">
 9
10     <ImageView
11         android:id="@+id/iv"
12         android:layout_width="match_parent"
13         android:layout_height="match_parent"
14         android:scaleType="fitXY"
15         android:src="@drawable/yaoyao"
16         />
17 </LinearLayout>

代码：

  1 package com.example.shake;
  2
  3 import java.io.IOException;
  4
  5 import android.R.id;
  6 import android.app.Activity;
  7 import android.app.ActionBar;
  8 import android.app.Fragment;
  9 import android.graphics.Bitmap;
 10 import android.graphics.BitmapFactory;
 11 import android.hardware.Sensor;
 12 import android.hardware.SensorEvent;
 13 import android.hardware.SensorEventListener;
 14 import android.hardware.SensorManager;
 15 import android.os.Bundle;
 16 import android.os.Vibrator;
 17 import android.util.Log;
 18 import android.view.LayoutInflater;
 19 import android.view.Menu;
 20 import android.view.MenuItem;
 21 import android.view.View;
 22 import android.view.ViewGroup;
 23 import android.widget.ImageView;
 24 import android.os.Build;
 25
 26 public class MainActivity extends Activity {
 27
 28     private SensorManager sm;
 29     private Sensor sensor;
 30     private MyListener listener;
 31
 32     private ImageView iv;
 33
 34     private int flag = 1; //用于切图，打个标记，根据不同的flag调用不同图片
 35
 36     @Override
 37     protected void onCreate(Bundle savedInstanceState) {
 38         super.onCreate(savedInstanceState);
 39         setContentView(R.layout.activity_main);
 40
 41         iv = (ImageView) findViewById(R.id.iv);
 42
 43         //创建传感器管理者
 44         sm = (SensorManager) getSystemService(SENSOR_SERVICE);
 45         //创建传感器
 46         sensor = sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
 47         listener = new MyListener();
 48         sm.registerListener(listener, sensor, SensorManager.SENSOR_DELAY_GAME); //SensorManager.SENSOR_DELAY_GAME表示传感器灵敏度设置
 49
 50
 51     }
 52
 53     private class MyListener implements SensorEventListener{
 54
 55         @Override
 56         public void onSensorChanged(SensorEvent event) {
 57             float [] value = event.values;
 58             Log.v("1", value[0]+""); //打印log看下传感器值
 59                         //value[0]
 60             if(value[0] > 17){
 61                 System.out.println(flag);
 62                 f();
 63                 BitmapFactory.Options options = new BitmapFactory.Options();
 64                  Bitmap bitmap;
 65                  if(flag == 1){
 66                      try {
 67                             bitmap = BitmapFactory.decodeStream(getAssets().open("1.jpg"), null, options);
 68                              iv.setImageBitmap(bitmap);
 69                              flag++;
 70
 71                              return;
 72                         } catch (IOException e) {
 73                             // TODO Auto-generated catch block
 74                             e.printStackTrace();
 75                         }
 76                  }else if(flag == 2){
 77                      try {
 78                         bitmap = BitmapFactory.decodeStream(getAssets().open("22.jpg"), null, options);
 79                         iv.setImageBitmap(bitmap);
 80                          flag++;
 81                          return;
 82                     } catch (IOException e) {
 83                         // TODO Auto-generated catch block
 84                         e.printStackTrace();
 85                     }
 86
 87                  }else if(flag == 3){
 88                      try {
 89                              //getAssets().open("33.jpg")调用assets中的图片文件
 90                              //把文件流转化成bitmap位图
 91                             bitmap = BitmapFactory.decodeStream(getAssets().open("33.jpg"), null, options);
 92                             iv.setImageBitmap(bitmap);
 93                              flag = 1;
 94                              return;
 95                         } catch (IOException e) {
 96                             // TODO Auto-generated catch block
 97                             e.printStackTrace();
 98                         }
 99                  }
100
101
102
103
104             }
105
106         }
107
108         @Override
109         public void onAccuracyChanged(Sensor sensor, int accuracy) {
110             // TODO Auto-generated method stub
111
112         }
113
114     }
115
116     //震动
117     private void f(){
118         Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
119         long[] pattern = {100, 1000, 50, 30}; // OFF/ON/OFF/ON...
120         vibrator.vibrate(pattern, -1);//-1不重复，非-1为从pattern的指定下标开始重复
121     }
122
123     @Override
124     protected void onDestroy() {
125         sm.unregisterListener(listener);
126         super.onDestroy();
127     }
128
129
130
131 }
132                         

目前的问题是，在摇动终端的时候，震动没问题，但切图有时过快，摇一下切了两张图。待排查。