標籤:android des style blog class code
google提供了天氣的api,以廣州天氣為例,地址為:
http://api.openweathermap.org/data/2.5/weather?q=guangzhou
返回的結果為:
{ "coord": { "lon": 113.25, "lat": 23.12 }, "sys": { "message": 0.2088, "country": "CN", "sunrise": 1400017567, "sunset": 1400065233 }, "weather": [ { "id": 501, "main": "Rain", "description": "moderate rain", "icon": "10d" } ], "base": "cmc stations", "main": { "temp": 299.818, "temp_min": 299.818, "temp_max": 299.818, "pressure": 1004.54, "sea_level": 1014.72, "grnd_level": 1004.54, "humidity": 97 }, "wind": { "speed": 4.42, "deg": 201.501 }, "rain": { "3h": 6 }, "clouds": { "all": 44 }, "dt": 1400055192, "id": 1809858, "name": "Guangzhou", "cod": 200}
因此,在本範例中,寫一個天氣查詢的DEMO,用於輸入地點,並查詢天氣情況。
效果如下:
詳細步驟如下:
1、主介面布局檔案
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".MainActivity" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_alignParentTop="true" android:layout_marginTop="15dp" android:text="@string/location" android:textAppearance="?android:attr/textAppearanceMedium" /> <EditText android:id="@+id/editText1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBottom="@+id/textView1" android:layout_alignParentRight="true" android:ems="10" /> <TextView android:id="@+id/textView2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/textView1" android:layout_below="@+id/textView1" android:layout_marginTop="68dp" android:text="@string/country" android:textAppearance="?android:attr/textAppearanceSmall" /> <TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@+id/textView2" android:layout_marginTop="19dp" android:text="@string/temperature" android:textAppearance="?android:attr/textAppearanceSmall" /> <TextView android:id="@+id/textView4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/textView3" android:layout_below="@+id/textView3" android:layout_marginTop="32dp" android:text="@string/humidity" android:textAppearance="?android:attr/textAppearanceSmall" /> <TextView android:id="@+id/textView5" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/textView4" android:layout_below="@+id/textView4" android:layout_marginTop="21dp" android:text="@string/pressure" android:textAppearance="?android:attr/textAppearanceSmall" /> <EditText android:id="@+id/editText2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/textView3" android:layout_toRightOf="@+id/textView3" android:ems="10" > <requestFocus /> </EditText> <EditText android:id="@+id/editText3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/textView3" android:layout_alignBottom="@+id/textView3" android:layout_alignLeft="@+id/editText2" android:ems="10" /> <EditText android:id="@+id/editText4" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_above="@+id/textView5" android:layout_alignLeft="@+id/editText1" android:ems="10" /> <EditText android:id="@+id/editText5" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBaseline="@+id/textView5" android:layout_alignBottom="@+id/textView5" android:layout_alignRight="@+id/editText4" android:ems="10" /> <Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/editText2" android:layout_below="@+id/editText1" android:onClick="open" android:text="@string/weather" /></RelativeLayout>
2、定義String.xml
<?xml version="1.0" encoding="utf-8"?><resources> <string name="app_name">JSONParser</string> <string name="action_settings">Settings</string> <string name="hello_world">Hello world!</string> <string name="location">Location</string> <string name="country">Country:</string> <string name="temperature">Temperature:</string> <string name="humidity">Humidity:</string> <string name="pressure">Pressure:</string> <string name="weather">Weather</string></resources>
3、在AndroidManifest.xml中添加internet存取權限。
4、