从服务访问值到适配器

Question

服役中class：

public void onNotify(TransferHandler<ProcessHolder> handler, int percentage) {
    updateprocess(percentage);
}

在适配器中

onBindViewHolder

progressBar = new ProgressBar(getContext());
progressBar = parentView.findViewById(R.id.progressbar_process);

现在我想从服务 class 方法访问此适配器进度的百分比

Answer 1

在服务中class我写了这个

public void onNotify(TransferHandler<ProcessHolder> handler, int percentage) {
    Intent intent = new Intent("PercentageUpdates");
    intent.putExtra("percentage", percentage);
    LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
}

并且在 Activity 端你必须收到这个广播消息

LocalBroadcastManager.getInstance(getActivity()).registerReceiver(
            mMessageReceiver, new IntentFilter("PercentageUpdates"));

通过这种方式，您可以将百分比发送到 Activity。这里的 mPercentageReceiver 是 class，因为 class 你会执行任何你想要的....

private BroadcastReceiver mPercentageReceiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        String percentage = intent.getStringExtra("percentage");
        if (percentage != null) {
            // You can set the percentage here
        }
    }
};

Answer 2

使用EventBus库

按照此步骤配置后

1 : 创建 servieClass.java

public class serviceClass {

private int percentage;

public serviceClass(int percentage) {
    this.percentage = percentage;
}

public int getPercentage() {
    return percentage;
}
}

2 : 更改服务

public void onNotify(TransferHandler<ProcessHolder> handler, int percentage) {
   updateprocess(percentage);
   EventBus.getDefault().post(new servieClass(percentage));
}

3 : 添加 setPercentage 功能到您的适配器

public void setPercentage(int percentage){
    this.percentage = percentage;
    notifyDataSetChanged();
}

4 : 最后在你配置 EventBus 的片段中添加这个

 @Subscribe
public void onEvent(BlockedEvent event) {
    adapter.setPercentage(percentage);
}

祝你好运

从服务访问值到适配器

Accessing a value from a service to an adapter

java

android

android-progressbar

baseadapter