Android电量和插拔电源状态广播监听

墨蓝 2022-07-13 02:27 234阅读 0赞

## Android电量和插拔电源状态广播监听 ##

Android电量广播状态有3种，电量低，电量充满，电量发生改变。  
Action是：

Intent.ACTION_BATTERY_CHANGE
    Intent.ACTION_BATTERY_LOW
    Intent.ACTION_BATTERY_OKAY

Android的插拔电源广播的Action是：

Intent.ACTION_POWER_CONNECTED
    Intent.ACTION_POWER_DISCONNECTED

示例代码：

public class BatteryListener { 
    
        private Context mContext;
    
        private BatteryBroadcastReceiver receiver;
    
        private BatteryStateListener mBatteryStateListener;
    
        public BatteryListener(Context context) {
            mContext = context;
            receiver = new BatteryBroadcastReceiver();
        }
    
        public void register(BatteryStateListener listener) {
            mBatteryStateListener = listener;
            if (receiver != null) {
                IntentFilter filter = new IntentFilter();
                filter.addAction(Intent.ACTION_BATTERY_CHANGED);
                filter.addAction(Intent.ACTION_BATTERY_LOW);
                filter.addAction(Intent.ACTION_BATTERY_OKAY);
                filter.addAction(Intent.ACTION_POWER_CONNECTED);
                filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
                mContext.registerReceiver(receiver, filter);
            }
        }
    
        public void unregister() {
            if (receiver != null) {
                mContext.unregisterReceiver(receiver);
            }
        }
    
        private class BatteryBroadcastReceiver extends BroadcastReceiver { 
    
            @Override
            public void onReceive(Context context, Intent intent) {
                if (intent != null) {
                    String acyion = intent.getAction();
                    switch (acyion) {
                        case Intent.ACTION_BATTERY_CHANGED://电量发生改变
                            if (mBatteryStateListener != null) {
                                Log.e("zhang", "BatteryBroadcastReceiver --> onReceive--> ACTION_BATTERY_CHANGED");
                                mBatteryStateListener.onStateChanged();
                            }
                            break;
                        case Intent.ACTION_BATTERY_LOW://电量低
                            if (mBatteryStateListener != null) {
                                Log.e("zhang", "BatteryBroadcastReceiver --> onReceive--> ACTION_BATTERY_LOW");
                                mBatteryStateListener.onStateLow();
                            }
                            break;
                        case Intent.ACTION_BATTERY_OKAY://电量充满
                            if (mBatteryStateListener != null) {
                                Log.e("zhang", "BatteryBroadcastReceiver --> onReceive--> ACTION_BATTERY_OKAY");
                                mBatteryStateListener.onStateOkay();
                            }
                            break;
                        case Intent.ACTION_POWER_CONNECTED://接通电源
                            if (mBatteryStateListener != null) {
                                Log.e("zhang", "BatteryBroadcastReceiver --> onReceive--> ACTION_POWER_CONNECTED");
                                mBatteryStateListener.onStatePowerConnected();
                            }
                            break;
                        case Intent.ACTION_POWER_DISCONNECTED://拔出电源
                            if (mBatteryStateListener != null) {
                                Log.e("zhang", "BatteryBroadcastReceiver --> onReceive--> ACTION_POWER_DISCONNECTED");
                                mBatteryStateListener.onStatePowerDisconnected();
                            }
                            break;
                    }
                }
            }
        }
    
        public interface BatteryStateListener { 
            public void onStateChanged();
    
            public void onStateLow();
    
            public void onStateOkay();
    
            public void onStatePowerConnected();
    
            public void onStatePowerDisconnected();
        }
    
    }

MainActivity中调用：

public class MainActivity extends AppCompatActivity { 
    
        private BatteryListener listener;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            listener = new BatteryListener(this);
            listener.register(new BatteryListener.BatteryStateListener() {
                @Override
                public void onStateChanged() {
                    Log.e("zhang", "MainActivity --> onStateChanged--> ");
                }
    
                @Override
                public void onStateLow() {
                    Log.e("zhang", "MainActivity --> onStateLow--> ");
                    Toast.makeText(MainActivity.this, "onStateLow", Toast.LENGTH_SHORT).show();
                }
    
                @Override
                public void onStateOkay() {
                    Log.e("zhang", "MainActivity --> onStateOkay--> ");
                    Toast.makeText(MainActivity.this, "onStateOkay", Toast.LENGTH_SHORT).show();
                }
    
                @Override
                public void onStatePowerConnected() {
                    Log.e("zhang", "MainActivity --> onStatePowerConnected--> ");
                    Toast.makeText(MainActivity.this, "onStatePowerConnected", Toast.LENGTH_SHORT).show();
                }
    
                @Override
                public void onStatePowerDisconnected() {
                    Log.e("zhang", "MainActivity --> onStatePowerDisconnected--> ");
                    Toast.makeText(MainActivity.this, "onStatePowerDisconnected", Toast.LENGTH_SHORT).show();
                }
            });
        }
    
        @Override
        protected void onDestroy() {
            if (listener != null) {
                listener.unregister();
            }
            super.onDestroy();
        }
    }