forked from udacity/ud851-Sunshine
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Sunshine S03.01-Exercise-RecyclerView
todo's through udacity#17 todo's through udacity#46 - Exercise complete
- Loading branch information
1 parent
42dd191
commit 08ee63b
Showing
3 changed files
with
105 additions
and
57 deletions.
There are no files selected for viewing
78 changes: 69 additions & 9 deletions
78
...Exercise-RecyclerView/app/src/main/java/com/example/android/sunshine/ForecastAdapter.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,43 +1,103 @@ | ||
| package com.example.android.sunshine; | ||
|
|
||
| // Within ForecastAdapter.java ///////////////////////////////////////////////////////////////// | ||
|
|
||
| // TODO (22) Extend RecyclerView.Adapter<ForecastAdapter.ForecastAdapterViewHolder> | ||
| // TODO (23) Create a private string array called mWeatherData | ||
| // TODO (47) Create the default constructor (we will pass in parameters in a later lesson) | ||
|
|
||
|
|
||
| import android.content.Context; | ||
| import android.support.annotation.NonNull; | ||
| import android.support.v7.widget.RecyclerView; | ||
| import android.view.LayoutInflater; | ||
| import android.view.View; | ||
| import android.view.ViewGroup; | ||
| import android.widget.TextView; | ||
|
|
||
|
|
||
| // Within ForecastAdapter.java ///////////////////////////////////////////////////////////////// | ||
| // TODO completed (22) Extend RecyclerView.Adapter<ForecastAdapter.ForecastAdapterViewHolder> | ||
| // Within ForecastAdapter.java ///////////////////////////////////////////////////////////////// | ||
| public class ForecastAdapter extends RecyclerView.Adapter<ForecastAdapter.ForecastAdapterViewHolder> { | ||
|
|
||
| // TODO (47) Create the default constructor (we will pass in parameters in a later lesson) | ||
| public ForecastAdapter() { | ||
| } | ||
|
|
||
| // TODO completed (23) Create a private string array called mWeatherData | ||
| private String[] mWeatherData; | ||
|
|
||
| // TODO completed (24) Override onCreateViewHolder | ||
| @NonNull | ||
| @Override | ||
| public ForecastAdapterViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) { | ||
| return null; | ||
|
|
||
| // TODO completed (25) Within onCreateViewHolder, inflate the list item xml into a view | ||
| // TODO completed (26) Within onCreateViewHolder, return a new ForecastAdapterViewHolder with the above view passed in as a parameter | ||
| // sort of condensed version | ||
| View view = LayoutInflater.from(parent.getContext()) | ||
| .inflate(R.layout.forecast_list_item, | ||
| parent, | ||
| false); | ||
| return new ForecastAdapterViewHolder(view); | ||
|
|
||
| // separated version | ||
| /* | ||
| Context context = parent.getContext(); | ||
| LayoutInflater inflater = LayoutInflater.from(context); | ||
| int itemLayout = R.layout.forecast_list_item; | ||
| boolean initiallyAttach = false; | ||
| View view = inflater.inflate(itemLayout, parent, initiallyAttach); | ||
| return new ForecastAdapterViewHolder(view); | ||
| */ | ||
|
|
||
| // really condensed version | ||
| /* | ||
| return new ForecastAdapterViewHolder( | ||
| // view | ||
| LayoutInflater.from(parent.getContext()) | ||
| .inflate(R.layout.forecast_list_item, | ||
| parent, | ||
| false) | ||
| ); | ||
| */ | ||
|
|
||
| } | ||
|
|
||
| // TODO completed (27) Override onBindViewHolder | ||
| // TODO completed (28) Set the text of the TextView to the weather for this list item's position | ||
| @Override | ||
| public void onBindViewHolder(@NonNull ForecastAdapterViewHolder holder, int position) { | ||
|
|
||
| holder.mWeatherTextView.setText(mWeatherData[position]); | ||
| } | ||
|
|
||
| // TODO completed (29) Override getItemCount | ||
| // TODO completed (30) Return 0 if mWeatherData is null, or the size of mWeatherData if it is not null | ||
| @Override | ||
| public int getItemCount() { | ||
| return 0; | ||
| if (mWeatherData == null) return 0; | ||
| else return mWeatherData.length; | ||
| } | ||
|
|
||
| // TODO completed (31) Create a setWeatherData method that saves the weatherData to mWeatherData | ||
| // TODO completed (32) After you save mWeatherData, call notifyDataSetChanged | ||
| public void setWeatherData(String[] weatherData) { | ||
| mWeatherData = weatherData; | ||
| notifyDataSetChanged(); // built-in method in RecyclerView | ||
| } | ||
|
|
||
| // TODO completed (15) Add a class file called ForecastAdapter | ||
| // TODO completed (16) Create a class within ForecastAdapter called ForecastAdapterViewHolder | ||
| // TODO completed (17) Extend RecyclerView.ViewHolder | ||
| class ForecastAdapterViewHolder extends RecyclerView.ViewHolder { | ||
|
|
||
| // Within ForecastAdapterViewHolder /////////////////////////////////////////////////////////// | ||
| // TODO completed (18) Create a public final TextView variable called mWeatherTextView | ||
| public final TextView mWeatherTextView; | ||
|
|
||
| // TODO completed (19) Create a constructor for this class that accepts a View as a parameter | ||
| // TODO completed (20) Call super(view) within the constructor for ForecastAdapterViewHolder | ||
| // TODO completed (21) Using view.findViewById, get a reference to this layout's TextView and save it to mWeatherTextView | ||
| // Within ForecastAdapterViewHolder /////////////////////////////////////////////////////////// | ||
| public ForecastAdapterViewHolder(View itemView) { | ||
| super(itemView); | ||
| mWeatherTextView = itemView.findViewById(R.id.tv_weather_data); | ||
| } | ||
| } | ||
| } | ||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters