日記: 2012

2012年11月23日星期五

2012年11月13日星期二

2012年11月9日星期五

android WAKE_LOCK DIM

/*WAKE_LOCK SCREEN_DIM_WAKE_LOCK
*/
package tw.com.kevin.ae1_18;

import android.os.Bundle;
import android.os.PowerManager;
import android.os.PowerManager.WakeLock;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {
private WakeLock wakeLock;
public static String TAG = "HIPPO_DEBUG";

@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
wakeLock = powerManager.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "led"); //screen is on (but may be dimmed)
//wakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, "led");
//wakeLock = powerManager.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.FULL_WAKE_LOCK , "led");

final TextView tv = (TextView) findViewById(R.id.textView1);
tv.setText("off");
Button button01 = (Button) findViewById(R.id.button1);
button01.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.i(TAG,"isisHeld()1"+wakeLock.isHeld());
if(!wakeLock.isHeld()){
wakeLock.acquire();
tv.setText("SCREEN_DIM_WAKE_LOCK---acquire()");
Log.i(TAG,"acquire();");
}
}
});

Button button02 = (Button) findViewById(R.id.button2);
button02.setOnClickListener(new Button.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if(wakeLock.isHeld())
{
wakeLock.release();
tv.setText("SCREEN_DIM_WAKE_LOCK---release()");
Log.i(TAG,"release();");
}
}
});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}