天气预报Android studio 代码

以下是一个简单的天气预报 Android Studio 代码示例：

1. 创建一个新的 Android Studio 项目，并在布局文件中添加以下元素：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

   <TextView
       android:id="@+id/locationTextView"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:textSize="20sp"
       android:textStyle="bold"
       android:layout_alignParentTop="true"
       android:layout_centerHorizontal="true"
       android:text="Location" />

   <TextView
       android:id="@+id/temperatureTextView"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:textSize="50sp"
       android:textStyle="bold"
       android:layout_below="@+id/locationTextView"
       android:layout_centerHorizontal="true"
       android:text="Temperature" />

   <ImageView
       android:id="@+id/weatherImageView"
       android:layout_width="90dp"
       android:layout_height="90dp"
       android:layout_below="@+id/temperatureTextView"
       android:layout_centerHorizontal="true"
       android:src="@drawable/ic_launcher_foreground" />

</RelativeLayout>

2. 在 MainActivity.java 中添加以下代码：

public class MainActivity extends AppCompatActivity {

    private TextView locationTextView;
    private TextView temperatureTextView;
    private ImageView weatherImageView;

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

        locationTextView = findViewById(R.id.locationTextView);
        temperatureTextView = findViewById(R.id.temperatureTextView);
        weatherImageView = findViewById(R.id.weatherImageView);

        WeatherAsyncTask weatherAsyncTask = new WeatherAsyncTask();
        weatherAsyncTask.execute("New York");
    }

    private class WeatherAsyncTask extends AsyncTask<String, Void, Weather> {

        @Override
        protected Weather doInBackground(String... strings) {
            String location = strings[0];
            Weather weather = new Weather();
            weather.setLocation(location);
            weather.setTemperature("15C");
            weather.setWeatherIcon(R.drawable.ic_launcher_foreground);
            return weather;
        }

        @Override
        protected void onPostExecute(Weather weather) {
            super.onPostExecute(weather);

            locationTextView.setText(weather.getLocation());
            temperatureTextView.setText(weather.getTemperature());
            weatherImageView.setImageResource(weather.getWeatherIcon());
        }
    }
}

3. 创建一个 Weather.java 类，用于存储天气信息：

public class Weather {

    private String location;
    private String temperature;
    private int weatherIcon;

    public String getLocation() {
        return location;
    }

    public void setLocation(String location) {
        this.location = location;
    }

    public String getTemperature() {
        return temperature;
    }

    public void setTemperature(String temperature) {
        this.temperature = temperature;
    }

    public int getWeatherIcon() {
        return weatherIcon;
    }

    public void setWeatherIcon(int weatherIcon) {
        this.weatherIcon = weatherIcon;
    }
}

这是一个很简单的示例，仅用于演示如何在 Android Studio 中创建天气预报应用程序。实际开发中，您需要使用 API 来获取实时天气数据，并在 UI 中显示它。