如何在重力加速度监听器中实现button被按下的逻辑？
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<p>
<br/>
</p>我这有一个小问题，能否帮忙给个思路。
我用
button_w.setPressed(false);
想在加速度监听器中设置按钮被按下，并执行按钮被按下相关的逻辑，可是上面那个不管用，虽然按下的图片改变了，但是并没有启动onClcik();中的逻辑，有什么好办法实现吗？
Java code
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package com.example.carcontroler;
import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.TextView;
import android.widget.Toast;
public class MainActivity extends Activity implements OnClickListener {
private SensorManager sensorManager;
private Sensor sensor = null;
private boolean sensorFlag = false;
private mySensorEventListener listener = new mySensorEventListener();
private TextView xyz = null;
private ImageButton button_w = null;
private ImageButton button_s = null;
private ImageButton button_a = null;
private ImageButton button_d = null;
private ImageButton button_g = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
xyz = (TextView) findViewById(R.id.textview1);
button_w = (ImageButton) findViewById(R.id.button1); // 前进
button_s = (ImageButton) findViewById(R.id.button2); // 后退
button_a = (ImageButton) findViewById(R.id.button3); // 左转
button_d = (ImageButton) findViewById(R.id.button4); // 右转
button_g = (ImageButton) findViewById(R.id.button5); // 重力感应模式
sensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
sensor = sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
/*
* sensorManager.registerListener(listener,sensor,SensorManager.
* SENSOR_DELAY_NORMAL);
*/
button_w.setOnClickListener(this);
button_s.setOnClickListener(this);
button_a.setOnClickListener(this);
button_d.setOnClickListener(this);
button_g.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button1: {
Toast.makeText(MainActivity.this, "前进", Toast.LENGTH_SHORT).show();
break;
}
case R.id.button2: {
Toast.makeText(MainActivity.this, "后退", Toast.LENGTH_SHORT).show();
break;
}
case R.id.button3: {
Toast.makeText(MainActivity.this, "左转", Toast.LENGTH_SHORT).show();
break;
}
case R.id.button4: {
Toast.makeText(MainActivity.this, "右转", Toast.LENGTH_SHORT).show();
break;
}
case R.id.button5: {
if (sensorFlag == false) {
sensorFlag = true;
Toast.makeText(MainActivity.this, "重力感应模式", Toast.LENGTH_SHORT)
.show();
sensorManager.registerListener(listener, sensor,
SensorManager.SENSOR_DELAY_NORMAL);
} else if (sensorFlag == true) {
sensorFlag = false;
Toast.makeText(MainActivity.this, "关闭重力感应", Toast.LENGTH_SHORT)
.show();
sensorManager.unregisterListener(listener);// 关闭监听器
}
}
default:
break;
}
}
@Override
protected void onDestroy() {
super.onDestroy();
if (sensorManager != null) {
sensorManager.unregisterListener(listener);// 关闭监听器
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.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();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
private class mySensorEventListener implements SensorEventListener{
@Override
public void onAccuracyChanged(Sensor sensor, int accuracy) {
}
@Override
public void onSensorChanged(SensorEvent event) {
float xValue = event.values[0];
float yValue = event.values[1];
float zValue = event.values[2];
xyz.setText("X: " + xValue + "\n" + "Y: " + yValue + "\n" + "Z: "
+ zValue);
if (yValue < -3) {
if (yValue < -3) {
button_w.setPressed(true);
}
}
if (yValue > 3) {
if (yValue > 3) {
button_s.setPressed(true);
}
}
if (xValue > 3) {
if (xValue > 3) {
button_a.setPressed(true);
}
}
if (xValue < -3) {
if (xValue < -3) {
button_d.setPressed(true);
}
}
if (3 > yValue && yValue > -3) {
button_w.setPressed(false);
button_s.setPressed(false);
}
if (3 > xValue && xValue > -3) {
button_a.setPressed(false);
button_d.setPressed(false);
}
}
}
}
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