strings.xmlとonClickメソッドの色を変更します。

Question

こんにちは、これは私のstrings.xmlです。アンドロイドのための方法を実行できませんでした：java.lang.IllegalStateException：onClickの そして、これが私のOnCick方法である：

public void konwertuj(View view) { 

    if (fromEditText.getText().toString().length() < 1) { 
     Toast.makeText(GlownaPredkosc.this, "Musisz wpisać dowolną liczbę", Toast.LENGTH_LONG).show(); 
    } else { 

     // Get the string from the Spinners and number from the EditText 

     String fromString = (String) fromSpinner.getSelectedItem(); 
     String toString = (String) toSpinner.getSelectedItem(); 
     double input = Double.valueOf(fromEditText.getText().toString()); 

     // Convert the strings to something in our Unit enu, 
     KonwerterPredkosc.Jednostka fromJednostka = KonwerterPredkosc.Jednostka.fromString(fromString); 
     KonwerterPredkosc.Jednostka toJednostka = KonwerterPredkosc.Jednostka.fromString(toString); 

     // Create a converter object and convert! 
     KonwerterPredkosc konwerter = new KonwerterPredkosc(fromJednostka, toJednostka); 
     double result = konwerter.convert(input); 
     toEditText.setText(String.valueOf(result)); 
    } 

<item><font color ="red">mnasekundę</font></item> 

私はLogCatがあると言う赤に項目の色を変更しましたが、残念ながら

PSフォントの色が黒の場合、すべてがうまくいきます。

完全な出力を読み取るための

ありがとう：.xmlファイルには何も変更せずに toEditText.setTextColor(this.getResources().getColor(R.color.red)); ：

java.lang.IllegalStateException: Could not execute method for android:onClick 
                     at android.view.View$DeclaredOnClickListener.onClick(View.java:4452) 
                     at android.view.View.performClick(View.java:5198) 
                     at android.view.View$PerformClick.run(View.java:21147) 
                     at android.os.Handler.handleCallback(Handler.java:739) 
                     at android.os.Handler.dispatchMessage(Handler.java:95) 
                     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$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                    Caused by: java.lang.reflect.InvocationTargetException 
                     at java.lang.reflect.Method.invoke(Native Method) 
                     at android.view.View$DeclaredOnClickListener.onClick(View.java:4447) 
                     at android.view.View.performClick(View.java:5198) 
                     at android.view.View$PerformClick.run(View.java:21147) 
                     at android.os.Handler.handleCallback(Handler.java:739) 
                     at android.os.Handler.dispatchMessage(Handler.java:95) 
                     at android.os.Looper.loop(Looper.java:148) 
                     at android.app.ActivityThread.main(ActivityThread.java:5417) 
                     at java.lang.reflect.Method.invoke(Native Method) 
                     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
                     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
                    Caused by: java.lang.ClassCastException: android.text.SpannedString cannot be cast to java.lang.String 
                     at com.example.barto.konwerter2.GlownaPredkosc.konwertuj(GlownaPredkosc.java:73) 
                     at java.lang.reflect.Method.invoke(Native Method) 
                     at android.view.View$DeclaredOnClickListener.onClick(View.java:4447) 
                     at android.view.View.performClick(View.java:5198) 
                     at android.view.View$PerformClick.run(View.java:21147) 
                     at android.os.Handler.handleCallback(Handler.java:739) 
                     at android.os.Handler.dispatchMessage(Handler.java:95) 
                     at android.os.Looper.loop(Looper.java:148) 
                     at android.app.ActivityThread.main(ActivityThread.java:5417) 
                     at java.lang.reflect.Method.invoke(Native Method) 

Answer 1

これを試してみてください。