监听Android系统log

package com.isoft.log; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.TextView; public class LogObserverActivity extends Activity { private String TAG = "LogObserverActivity"; public static String LOG_ACTION = "com.isoft.log.LOG_ACTION"; private TextView logContent = null; private Button start = null; private Intent logObserverIntent = null; private LogBroadcastReceiver mLogBroadcastReceiver = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); //初始化视图 initView(); //注册log广播接收者 registerLogBroadcastReceiver(); } private void initView() { logContent = (TextView) findViewById(R.id.logContent); logContent.setText("show log"); start = (Button)findViewById(R.id.start); start.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { startLogObserverService(); start.setEnabled(false); } }); } private void startLogObserverService() { logObserverIntent = new Intent(this, LogObserverService.class); startService(logObserverIntent); } /** * 注册log广播接收者 */ private void registerLogBroadcastReceiver(){ mLogBroadcastReceiver = new LogBroadcastReceiver(); IntentFilter filter = new IntentFilter(); filter.addAction(LOG_ACTION); registerReceiver(mLogBroadcastReceiver, filter); } /** * log 广播接收者 * @author zhangyg * */ private class LogBroadcastReceiver extends BroadcastReceiver{ private String action = null; private Bundle mBundle = null; @Override public void onReceive(Context context, Intent intent) { action = intent.getAction(); if(LOG_ACTION.equals(action)){ mBundle = intent.getExtras(); logContent.setText(mBundle.getString("log")); } } } @Override protected void onDestroy() { super.onDestroy(); stopService(logObserverIntent); unregisterReceiver(mLogBroadcastReceiver); } }