在Android项目中使用RemoteViews实现跨进程更新界面

// IremoteViewsManager.aidl.aidl
package com.czhappy.remoteviewdemo;

interface IremoteViewsManager {
  void addRemoteView(in RemoteViews remoteViews);
}

package com.czhappy.remoteviewdemo.service;

import android.app.Service;
import android.content.Intent;
import android.os.Binder;
import android.os.Bundle;
import android.os.IBinder;
import android.os.Message;
import android.os.RemoteException;
import android.widget.RemoteViews;

import com.czhappy.remoteviewdemo.IremoteViewsManager;
import com.czhappy.remoteviewdemo.activity.MainActivity;

/**
 * Description:
 * User: chenzheng
 * Date: 2017/2/10 0010
 * Time: 10:56
 */
public class RemoteViewsAIDLService extends Service {
  private static final String TAG = "RemoteViewsAIDLService";

  private Binder remoteViewsBinder = new IremoteViewsManager.Stub(){
    @Override
    public void addRemoteView(RemoteViews remoteViews) throws RemoteException {
      Message message = new Message();
      message.what = 1;
      Bundle bundle = new Bundle();
      bundle.putParcelable("remoteViews",remoteViews);
      message.setData(bundle);
      new MainActivity.MyHandler(RemoteViewsAIDLService.this,getMainLooper()).sendMessage(message);
    }
  };

  public RemoteViewsAIDLService() {

  }

  @Override
  public IBinder onBind(Intent intent) {
    return remoteViewsBinder;
  }

}

package com.czhappy.remoteviewdemo.activity;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.RemoteViews;
import android.widget.TextView;

import com.czhappy.remoteviewdemo.R;

import java.lang.ref.WeakReference;

public class MainActivity extends AppCompatActivity {

  private static String TAG = "MainActivity";
  private static LinearLayout mLinearLayout;

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

    mLinearLayout = (LinearLayout) this.findViewById(R.id.mylayout);
  }

  public static class MyHandler extends Handler {
    WeakReference weakReference;
    public MyHandler(Context context, Looper looper) {
      super(looper);
      weakReference = new WeakReference<>(context);
    }
    @Override
    public void handleMessage(Message msg) {
      super.handleMessage(msg);
      Log.i(TAG, "handleMessage");
      switch (msg.what) {
        case 1: //RemoteViews的AIDL实现
          RemoteViews remoteViews = msg.getData().getParcelable("remoteViews");
          if (remoteViews != null) {
            Log.i(TAG, "updateUI");

            View view = remoteViews.apply(weakReference.get(), mLinearLayout);
            mLinearLayout.addView(view);
          }
          break;
        default:
          break;
      }
    }

  };

  public void readyGo(View view){
    Intent intent = new Intent(MainActivity.this, Temp2Activity.class);
    startActivity(intent);
  }

}

package com.czhappy.remoteviewdemo.activity;

import android.app.PendingIntent;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.RemoteViews;

import com.czhappy.remoteviewdemo.IremoteViewsManager;
import com.czhappy.remoteviewdemo.R;
import com.czhappy.remoteviewdemo.service.RemoteViewsAIDLService;

/**
 * Description:
 * User: chenzheng
 * Date: 2017/2/9 0009
 * Time: 16:05
 */
public class Temp2Activity extends AppCompatActivity {

  private String TAG = "Temp2Activity";

  private IremoteViewsManager remoteViewsManager;
  private boolean isBind = false;


  private ServiceConnection remoteViewServiceConnection = new ServiceConnection() {
    @Override
    public void onServiceConnected(ComponentName name, IBinder service) {
      Log.i(TAG,"onServiceConnected");
      remoteViewsManager = IremoteViewsManager.Stub.asInterface(service);

    }

    @Override
    public void onServiceDisconnected(ComponentName name) {
      //回收
      remoteViewsManager = null;
    }
  };

  @Override
  protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    this.setContentView(R.layout.activity_temp);
  }

  /**
   * 绑定服务
   */
  public void bindService(View view) {
    Intent viewServiceIntent = new Intent(this,RemoteViewsAIDLService.class);
    isBind = bindService(viewServiceIntent,remoteViewServiceConnection, Context.BIND_AUTO_CREATE);
  }

  /**
   * 更新UI
   */
  public void UpdateUI(View view){
    RemoteViews remoteViews = new RemoteViews(Temp2Activity.this.getPackageName(),R.layout.button_layout);

    Intent intentClick = new Intent(Temp2Activity.this,FirstActivity.class);
    PendingIntent openFirstActivity = PendingIntent.getActivity(Temp2Activity.this,0,intentClick,0);
    remoteViews.setOnClickPendingIntent(R.id.firstButton,openFirstActivity);

    Intent secondClick = new Intent(Temp2Activity.this,SecondActivity.class);
    PendingIntent openSecondActivity = PendingIntent.getActivity(Temp2Activity.this,0,secondClick,0);
    remoteViews.setOnClickPendingIntent(R.id.secondButton,openSecondActivity);

    remoteViews.setCharSequence(R.id.secondButton,"setText","想改就改");
    try {
      remoteViewsManager.addRemoteView(remoteViews);
    } catch (RemoteException e) {
      e.printStackTrace();
    }
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    if(isBind){
      unbindService(remoteViewServiceConnection);
      isBind = false;
    }

  }

}

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