diff options
Diffstat (limited to 'samples/ApiDemos/src/com/example/android/apis/os')
| -rw-r--r-- | samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java b/samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java new file mode 100644 index 000000000..7d4b4168c --- /dev/null +++ b/samples/ApiDemos/src/com/example/android/apis/os/TriggerSensors.java @@ -0,0 +1,113 @@ +/* + * 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(); + } +} |
