我想要做的是以下
IntentService
来处理下载过程Receiver
类我的代码到目前为止如下:
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi;
vi = LayoutInflater.from(getContext());
if(IsRepository){
view = vi.inflate(R.layout.filerepositorylayout, null);
}
}
BindLayoutElemnts(view, position);
return view;
}
这是调用Intent服务的地方:
private void BindLayoutElemnts(View view, int position) {
myFiles = (files) getItem(position);
img_Download.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(getContext(),DownloadService.class);
intent.putExtra("FileID",""+myFiles.getID());
intent.putExtra("FileName",myFiles.getName());
context.startService(intent);
}
});
}
通话活动
这是Receiver
被称为
public class user_repositry extends AppCompatActivity implements DownloadReceiver.Receiver {
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
myDownloadReceiver = new DownloadReceiver(new Handler());
myDownloadReceiver.setReceiver(this);
}
@Override
public void onReceiveResult(int resultCode, Bundle resultData) {
Toast.makeText(user_repositry.this, "Downloaded", Toast.LENGTH_SHORT).show();
}
Intent service
代码:
ResultReceiver rec;
@Override
protected void onHandleIntent(Intent intent) {
rec = intent.getParcelableExtra("DownloadReceiver");
}
private void UpdateDBRecord() {
HashMap<String, String> PostData=new HashMap<String, String>();
PostData.put("call","UpdateFile");
PostData.put("ID", ""+file_ID);
BackgroundWorker registerWorker= new BackgroundWorker(this,this,PostData);
registerWorker.setShowLoadingMessage(false);
registerWorker.execute(Helper.getPhpHelperUrl());
}
此函数是Post execute
上面的registerWorker
中调用的函数
@Override
public void processFinish(String results) {
Log.d("Download","Download DB updated");
Bundle bundle = new Bundle();
//bundle.putString("resultValue", "My Result Value. Passed in: " );
// Here we call send passing a resultCode and the bundle of extras
rec.send(Activity.RESULT_OK, bundle);
}
我现在遇到这个错误:
Failed resolution of: Lcom/bassem/donateme/classes/DownloadReceiver;
我知道接收器没有启动,但我似乎无法在我的逻辑中找到丢失的代码
感谢您的帮助
答案 0 :(得分:0)
缺少的代码不在你的逻辑中,它在DownloadReciever的逻辑中。更广泛地寻找错误,并弄清楚为什么没有加载。那或者从中发布一些代码以便可以回答它。例如,寻找一个不存在并因此崩溃的uri?什么是期望和失败,为什么失败。您没有发布任何崩溃的代码。您发布了调用崩溃内容的代码。
答案 1 :(得分:0)
试试这个,
第1步: 使用活动内的ResultReceiver创建结果处理程序
public ResultReceiver downloadReceiver = new ResultReceiver(new Handler()) {
@Override
protected void onReceiveResult(int resultCode, Bundle resultData) {
super.onReceiveResult(resultCode, resultData);
//Broadcast /send the result code in intent service based on your logic(success/error) handle with switch
switch (resultCode) {
case 1: {
//Get the resultData and do your logic here
//Update your list view item here
break;
}
case 2: {
//Get the resultData and do your logic here
//Update your list view item here
break;
}
}
}
};
第2步:将结果处理程序放在intent中并启动意向服务
Intent intent = new Intent(getContext(), DownloadService.class);
intent.putExtra("receiver",downloadReceiver);
第3步:处理服务类中的意图(获取结果处理程序的值)
final ResultReceiver receiver;
@Override
protected void onHandleIntent(Intent intent) {
receiver = intent.getParcelableExtra("receiver");
}
第4步:将数据发送/广播到结果处理程序
//based on your logic, change the result code and data
//Add your result data (success scenario)
Bundle bundle = new Bundle();
bundle.putString("result","Some text");
receiver.send(1,bundle);
//Add your result data (failure scenario)
receiver.send(0,bundle);