我试图将字符串放入textView中,所以我这样做了 在R.string文件
<string name="GPS_info">Provider : %s longitude : %Lf latitude : %Lf
altitude : %Lf accuracy : %Lf</string>
在MainActivity中
tv.setText(getString(R.string.GPS_info, provider, latitude, longitude, altitude, accuracy));
但是这导致了意外错误,我该怎么办?
( 2246): java.lang.RuntimeException: Unable to start activity ComponentInfo{app.playground/app.playground.MainActivity}: java.util.UnknownFormatConversionException: Conversion: L ( 2246): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) ( 2246): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) ( 2246): at android.app.ActivityThread.access$800(ActivityThread.java:135) ( 2246): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) ( 2246): at android.os.Handler.dispatchMessage(Handler.java:102) ( 2246): at android.os.Looper.loop(Looper.java:136) ( 2246): at android.app.ActivityThread.main(ActivityThread.java:5017) ( 2246): at java.lang.reflect.Method.invokeNative(Native Method) ( 2246): at java.lang.reflect.Method.invoke(Method.java:515) ( 2246): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) ( 2246): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) ( 2246): at dalvik.system.NativeStart.main(Native Method) ( 2246): Caused by: java.util.UnknownFormatConversionException: Conversion: L ( 2246): at java.util.Formatter$FormatToken.unknownFormatConversionException(Formatter.java:1399) ( 2246): at java.util.Formatter$FormatToken.checkFlags(Formatter.java:1336) ( 2246): at java.util.Formatter.transform(Formatter.java:1442) ( 2246): at java.util.Formatter.doFormat(Formatter.java:1081) ( 2246): at java.util.Formatter.format(Formatter.java:1042) ( 2246): at java.util.Formatter.format(Formatter.java:1011) ( 2246): at java.lang.String.format(String.java:1999) ( 2246): at android.content.res.Resources.getString(Resources.java:359) ( 2246): at android.content.Context.getString(Context.java:356) ( 2246): at app.playground.MainActivity.onCreate(MainActivity.java:15) ( 2246): at android.app.Activity.performCreate(Activity.java:5231) ( 2246): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) ( 2246): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) ( 2246): ... 11 more
答案 0 :(得分:1)
%Lf
格式参数是问题所在。我不知道任何L
字符可用于数字格式参数(仅用于日期参数)。
将字符串更改为
<string name="GPS_info">Provider : %s longitude : %f latitude : %f
altitude : %f accuracy : %f</string>
还要注意,在字符串中,纬度之前是经度,但是在Java代码中,纬度之前是纬度。这将意味着lat / lng被交换为字符串,不应破坏,但不会是您想要的。
答案 1 :(得分:-1)
您应该这样实现:
tv.setText(getString(R.string.GPS_info)+ getString(R.string.provider));