我目前正在尝试从谷歌驱动器中读取数据，然后使用查询然后将gson传输到片段，这样我就可以将所述片段的编辑文本值设置为正在读取的gson（如果你遵循那个，那就是Kudos！）< / p>
每次我打开片段时，都会收到以下错误消息：
05-03 16:12:39.311 12594-12594/com.example.fitness_first.fitnessfirst E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.fitness_first.fitnessfirst, PID: 12594
java.lang.IllegalStateException: await must not be called on the UI thread
at com.google.android.gms.common.internal.zzx.zza(Unknown Source)
at com.google.android.gms.common.api.internal.zzb.await(Unknown Source)
at com.example.fitness_first.fitnessfirst.ReadFileInAppFolder$1.onResult(ReadFileInAppFolder.java:63)
at com.example.fitness_first.fitnessfirst.ReadFileInAppFolder$1.onResult(ReadFileInAppFolder.java:50)
at com.google.android.gms.common.api.internal.zzb$zza.zzb(Unknown Source)
at com.google.android.gms.common.api.internal.zzb$zza.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
我认为通过设置一个新线程来处理数据线程本身它会否定这个问题，但唉不是这样的。任何指针都将受到赞赏
加载详细信息活动：
package com.example.fitness_first.fitnessfirst;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.util.Log;
import android.widget.ProgressBar;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.drive.Drive;
import com.google.android.gms.drive.DriveApi;
import com.google.android.gms.drive.DriveFile;
import com.google.android.gms.drive.DriveId;
import com.google.android.gms.drive.MetadataBuffer;
import com.google.android.gms.drive.query.Filter;
import com.google.android.gms.drive.query.Filters;
import com.google.android.gms.drive.query.Query;
import com.google.android.gms.drive.query.SearchableField;
import com.google.gson.Gson;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
public class ReadFileInAppFolder extends MainActivity {
UserDetails result1;
Gson gson = new Gson();
Bundle connectionHint;
@Override
protected void onCreate(Bundle b) {
super.onCreate(b);
}
public void retrieveUserDetails() {
DataThread runner = new DataThread();
runner.start();
}
@Override
public void onConnected(Bundle connectionHint) {
super.onConnected(connectionHint);
Filter starredFilter = Filters.eq(SearchableField.STARRED, true);
Filter mimeTypeFilter = Filters.eq(SearchableField.MIME_TYPE, "application/json");
Filter titleFilter = Filters.contains(SearchableField.TITLE, "appconfig.json");
Query query = new Query.Builder().addFilter(starredFilter).addFilter(mimeTypeFilter).addFilter(titleFilter).build();
Drive.DriveApi.getAppFolder(mGoogleApiClient).queryChildren(mGoogleApiClient, query)
.setResultCallback(new ResultCallback<DriveApi.MetadataBufferResult>() {
@Override
public void onResult(DriveApi.MetadataBufferResult result) {
if (!result.getStatus().isSuccess()) {
Log.i(TAG, "Problem while retrieving results");
return;
}
MetadataBuffer metadataBuffer = result.getMetadataBuffer();
DriveId driveId = metadataBuffer.get(0).getDriveId();
DriveFile file = driveId.asDriveFile();
DriveApi.DriveContentsResult driveContentsResult =
file.open(mGoogleApiClient, DriveFile.MODE_READ_ONLY, null).await();
if (!driveContentsResult.getStatus().isSuccess()) {
driveContentsResult = null;
}
InputStream inputStream = driveContentsResult.getDriveContents().getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
result1 = gson.fromJson(reader, UserDetails.class);
Bundle bundle = new Bundle();
android.os.Message message = AccountFragment.dataHandler.obtainMessage();
try {
Thread.sleep(1000);
bundle.putString("NAME", result1.toString());
message.setData(bundle);
AccountFragment.dataHandler.sendMessage(message);
} catch (InterruptedException e) {
Log.i(TAG, "Data thread interrupted");
}
}
});
}
private class DataThread extends Thread implements Runnable {
@Override
public void run()
{
Log.i("Data Thread", "Starting");
onConnected(connectionHint);
Log.i("Data Thread", "Finshed");
}
}
我想要传递数据的片段：
package com.example.fitness_first.fitnessfirst;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.nearby.messages.Message;
public class AccountFragment extends Fragment implements View.OnClickListener{
public static GoogleApiClient getInstance() {
return null;
}
private String activityName = "Account management";
private Button saveDetailsButton;
private static EditText accountName;
private EditText accountUserName;
private EditText accountHeight;
private EditText accountWeight;
private Spinner spinnerGender = null;
private Bundle name = new Bundle();
private String nameKey = "NAME";
private Bundle userName = new Bundle();
private String usernameKey = "USERNAME";
private Bundle gender = new Bundle();
private String genderKey = "GENDER";
private Bundle height = new Bundle();
private String heightKey = "HEIGHT";
private Bundle weight = new Bundle();
private String weightKey = "WEIGHT";
public static Intent detailsIntent = new Intent();
private final int spinnerPosMALE = 0;
private final int spinnerPosFEMALE = 1;
public AccountFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.your_account, container, false);
saveDetailsButton = (Button) rootView.findViewById(R.id.buttonSaveDetails);
saveDetailsButton.setOnClickListener(this);
accountName = (EditText) rootView.findViewById(R.id.editTextName);
accountUserName = (EditText) rootView.findViewById(R.id.editTextUsername);
spinnerGender = (Spinner) rootView.findViewById(R.id.spinnerGender);
accountHeight = (EditText) rootView.findViewById(R.id.editTextHeight);
accountWeight = (EditText) rootView.findViewById(R.id.editTextWeight);
super.onCreateView(inflater, container, savedInstanceState);
return rootView;
}
@Override
public void onClick(View v) {
name.putString("NAME", accountName.getText().toString());
userName.putString("USERNAME", accountUserName.getText().toString());
gender.putString("GENDER", spinnerGender.getSelectedItem().toString());
height.putString("HEIGHT", accountHeight.getText().toString());
weight.putString("WEIGHT", accountWeight.getText().toString());
detailsIntent.putExtras(name);
detailsIntent.putExtras(userName);
detailsIntent.putExtras(gender);
detailsIntent.putExtras(height);
detailsIntent.putExtras(weight);
CreateFileInAppFolderActivity saveDetails = new CreateFileInAppFolderActivity();
saveDetails.saveDetails(detailsIntent);
}
@Override
public void onPause() {
super.onPause();
Log.i(activityName, "Paused");
}
@Override
public void onResume() {
super.onResume();
ReadFileInAppFolder dataIn = new ReadFileInAppFolder();
dataIn.retrieveUserDetails();
Log.i(activityName, "Resumed");
}
@Override
public void onStop() {
super.onStop();
Log.i(activityName, "Stopped");
}
@Override
public void onDestroy() {
super.onDestroy();
Log.i(activityName, "Destroyed");
}
public static Handler dataHandler = new Handler()
{
@Override
public void handleMessage(android.os.Message message){
String s = message.getData().getString("NAME");
accountName.setText(s);
}
};
}
答案 0 :(得分：0)
如异常消息中所述，您不应在UI线程上使用await。 设置新线程来处理数据应该修复它。
public abstract void onResult（R result）
结果准备就绪时调用。
回调的责任是释放任何资源 与结果相关联。某些结果类型可能会实现 可释放的，在这种情况下应该使用release（）来释放 相关资源。
此方法在主线程上调用，除非被重写 setHandler（处理程序）。