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package com.javaorigin.temperature; import android.app.Activity; import android.content.IntentFilter; import android.os.Bundle; import android.widget.TextView; public class TemperatureActivity extends Activity { TemperatureReceiver receiver=new TemperatureReceiver(this); TextView tempDisplay=null; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); tempDisplay=(TextView) findViewById(R.id.tempDisplay); IntentFilter localIntentFilter = new IntentFilter(); localIntentFilter.addAction("android.intent.action.BATTERY_CHANGED"); registerReceiver(receiver, localIntentFilter); } }Create Temperature Broadcast Receiver
package com.javaorigin.temperature; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; public class TemperatureReceiver extends BroadcastReceiver{ TemperatureActivity activity=null; public TemperatureReceiver(TemperatureActivity mainActivity) { activity=mainActivity; } @Override public void onReceive(Context arg0, Intent arg1) { activity.tempDisplay.setText(arg1.getIntExtra("temperature", 0)/10.0D+""); } }
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