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-rw-r--r--samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java113
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diff --git a/samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java b/samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java
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+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apis.os;
+
+import android.app.Activity;
+import android.content.Context;
+import android.view.View;
+import android.hardware.Sensor;
+import android.hardware.TriggerEvent;
+import android.hardware.TriggerEventListener;
+import android.hardware.SensorManager;
+import android.os.Bundle;
+import android.widget.TextView;
+import com.example.android.apis.R;
+
+/**
+ * <h3>Application showing the Trigger Sensor API for the Significant Motion sensor. </h3>
+
+<p>This demonstrates the {@link android.hardware.SensorManager android.hardware.SensorManager
+ android.hardware.TriggerEventListener} class.
+
+<h4>Demo</h4>
+OS / TriggerSensors
+
+<h4>Source files</h4>
+ * <table class="LinkTable">
+ * <tr>
+ * <td >src/com.example.android.apis/os/TriggerSensors.java</td>
+ * <td >TriggerSensors</td>
+ * </tr>
+ * </table>
+ */
+
+
+class TriggerListener extends TriggerEventListener {
+ private Context mContext;
+ private TextView mTextView;
+
+ TriggerListener(Context context, TextView textView) {
+ mContext = context;
+ mTextView = textView;
+ }
+
+ @Override
+ public void onTrigger(TriggerEvent event) {
+ if (event.values[0] == 1) {
+ mTextView.append(mContext.getString(R.string.sig_motion) + "\n");
+ mTextView.append(mContext.getString(R.string.sig_motion_auto_disabled) + "\n");
+ }
+ // Sensor is auto disabled.
+ }
+}
+
+public class TriggerSensors extends Activity {
+ private SensorManager mSensorManager;
+ private Sensor mSigMotion;
+ private TriggerListener mListener;
+ private TextView mTextView;
+
+ @Override
+ protected void onResume() {
+ super.onResume();
+ if (mSigMotion != null && mSensorManager.requestTriggerSensor(mListener, mSigMotion))
+ mTextView.append(getString(R.string.sig_motion_enabled) + "\n");
+ }
+
+ @Override
+ protected void onPause() {
+ super.onPause();
+ // Call disable only if needed for cleanup.
+ // The sensor is auto disabled when triggered.
+ if (mSigMotion != null) mSensorManager.cancelTriggerSensor(mListener, mSigMotion);
+ }
+
+
+ /**
+ * Initialization of the Activity after it is first created. Must at least
+ * call {@link android.app.Activity#setContentView setContentView()} to
+ * describe what is to be displayed in the screen.
+ */
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.trigger_sensors);
+ mSensorManager = (SensorManager)getSystemService(SENSOR_SERVICE);
+ mSigMotion = mSensorManager.getDefaultSensor(Sensor.TYPE_SIGNIFICANT_MOTION);
+ mTextView = (TextView)findViewById(R.id.text);
+ mListener = new TriggerListener(this, mTextView);
+ if (mSigMotion == null) {
+ mTextView.append(getString(R.string.no_sig_motion) + "\n");
+ }
+ }
+
+ @Override
+ protected void onStop() {
+ if (mSigMotion != null) mSensorManager.cancelTriggerSensor(mListener, mSigMotion);
+ super.onStop();
+ }
+}