Android手电筒范例代码

package com.clouddevelop.ledtest; import android.app.Activity; import android.content.Context; import android.hardware.Camera; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.LinearLayout; import android.widget.RelativeLayout; public class LEDTestActivity extends Activity { LinearLayout m_layout; private Button m_btnOn; private Button m_btnOff; CloudLed m_led; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.main); m_layout = new LinearLayout(this); m_btnOn = new Button(this); m_btnOn.setText("ON"); m_btnOn.setWidth(300); m_btnOff = new Button(this); m_btnOff.setText("OFF"); m_btnOff.setWidth(300); m_led = new CloudLed(); m_btnOn.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v) { // TODO Auto-generated method stub m_led.turnOn(); }}); m_btnOff.setOnClickListener(new Button.OnClickListener(){ public void onClick(View v) { // TODO Auto-generated method stub m_led.turnOff(); }}); m_layout.setHorizontalFadingEdgeEnabled(false); m_layout.setVerticalFadingEdgeEnabled(true); m_layout.addView(m_btnOff); m_layout.addView(m_btnOn); setContentView(m_layout); } @Override protected void onPause() { // TODO Auto-generated method stub super.onPause(); m_led.turnOff(); } @Override protected void onResume() { // TODO Auto-generated method stub super.onResume(); } }