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February 19, 2017 12:19
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近接センサータイマー
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<?xml version="1.0" encoding="utf-8"?> | |
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" | |
xmlns:tools="http://schemas.android.com/tools" | |
android:id="@+id/activity_main" | |
android:layout_width="match_parent" | |
android:layout_height="match_parent" | |
android:paddingBottom="@dimen/activity_vertical_margin" | |
android:paddingLeft="@dimen/activity_horizontal_margin" | |
android:paddingRight="@dimen/activity_horizontal_margin" | |
android:paddingTop="@dimen/activity_vertical_margin" | |
tools:context="com.rinevo.texttest.MainActivity"> | |
<ScrollView | |
android:id="@+id/scrollView" | |
android:layout_width="fill_parent" | |
android:layout_height="fill_parent"> | |
<TextView | |
android:id="@+id/textView" | |
android:layout_width="fill_parent" | |
android:layout_height="fill_parent" | |
android:text="" /> | |
</ScrollView> | |
</RelativeLayout> |
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package com.rinevo.texttest; | |
import android.content.Context; | |
import android.content.pm.ActivityInfo; | |
import android.hardware.Sensor; | |
import android.hardware.SensorEvent; | |
import android.hardware.SensorEventListener; | |
import android.hardware.SensorManager; | |
import android.support.v7.app.AppCompatActivity; | |
import android.os.Bundle; | |
import android.view.WindowManager; | |
import android.widget.ScrollView; | |
import android.widget.TextView; | |
import java.text.SimpleDateFormat; | |
import java.util.Date; | |
public class MainActivity extends AppCompatActivity implements SensorEventListener { | |
private TextView mTextView; | |
private ScrollView mScrollView; | |
private SensorManager mSensorManager; | |
private long mBackTime = 0; | |
@Override | |
protected void onCreate(Bundle savedInstanceState) { | |
super.onCreate(savedInstanceState); | |
setContentView(R.layout.activity_main); | |
// 表示を縦固定にする | |
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); | |
// スリープしないようする | |
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); | |
// 操作するViewをリソースから取得 | |
mTextView = (TextView)findViewById(R.id.textView); | |
mScrollView = (ScrollView)findViewById(R.id.scrollView); | |
// センサーを取得 | |
mSensorManager = (SensorManager)getSystemService(Context.SENSOR_SERVICE); | |
} | |
@Override | |
protected void onResume() { | |
super.onResume(); | |
// イベントリスナーにセンサーを登録 | |
Sensor sensor = mSensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY); | |
mSensorManager.registerListener(this, sensor, SensorManager.SENSOR_DELAY_FASTEST); | |
} | |
@Override | |
protected void onPause() { | |
super.onPause(); | |
// イベントリスナーからセンサーを解除 | |
mSensorManager.unregisterListener(this); | |
} | |
@Override | |
public void onSensorChanged(SensorEvent sensorEvent) { | |
// 近接センサーのとき | |
if (sensorEvent.sensor.getType() == Sensor.TYPE_PROXIMITY) { | |
// 現在の日時をミリ秒単位で取得 | |
long currentTimeMillis = System.currentTimeMillis(); | |
Date date = new Date(currentTimeMillis); | |
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS"); | |
// 前回との時間差を求める | |
if (mBackTime == 0) { | |
mBackTime = currentTimeMillis; | |
} | |
double diffTime = ((double) currentTimeMillis - (double) mBackTime) / 1000.0; | |
mBackTime = currentTimeMillis; | |
// 日時と差分の文字列 | |
String sTime = simpleDateFormat.format(date) + " +" + String.valueOf(diffTime); | |
// 出力 | |
if (sensorEvent.values[0] == sensorEvent.sensor.getMaximumRange()) { | |
mTextView.append("D: " + sTime + "\n"); | |
} else { | |
mTextView.append("N: " + sTime + "\n"); | |
} | |
// スクロールを末尾に移動 | |
mScrollView.fullScroll(ScrollView.FOCUS_DOWN); | |
} | |
} | |
@Override | |
public void onAccuracyChanged(Sensor sensor, int i) { | |
} | |
} |
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