java - 在共享首选项中保存时获取 android.content.res.Resources NotFoundException

Question

我想将 EditText 中的文本保存到 mode_private 中名为 prefs 的 sharedPrefs 文件中，稍后再显示它在 textview 中。

代码:

String sal=ed.getText().toString();
        int saly=Integer.parseInt(sal);
        String prefs="myPrefs";
        String Salaryflag="mySalary";
        SharedPreferences sp=getSharedPreferences(prefs,Context.MODE_PRIVATE);
        Editor ed=sp.edit();
        ed.putInt(Salaryflag, saly);
        ed.commit();
        Toast.makeText(getBaseContext(), "Salary Saved", Toast.LENGTH_SHORT).show();
        int c=sp.getInt(Salaryflag, 0);
        String str=Integer.toString(c);

        tv.setText(c);

我已将此代码放在按钮 onClick 中!

现在我要保存的数据是 integer 类型。现在的问题是代码中没有显示错误但是当我运行代码并输入数据并单击按钮应用程序时崩溃导致此错误!

09-28 03:11:38.124: E/AndroidRuntime(1352): FATAL EXCEPTION: main
09-28 03:11:38.124: E/AndroidRuntime(1352): Process: com.example.mybalancesheet, PID: 1352
09-28 03:11:38.124: E/AndroidRuntime(1352): java.lang.IllegalStateException: Could not execute method for android:onClick
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.view.View.performClick(View.java:4438)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.view.View$PerformClick.run(View.java:18422)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.os.Handler.handleCallback(Handler.java:733)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.os.Handler.dispatchMessage(Handler.java:95)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.os.Looper.loop(Looper.java:136)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.app.ActivityThread.main(ActivityThread.java:5001)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at java.lang.reflect.Method.invokeNative(Native Method)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at java.lang.reflect.Method.invoke(Method.java:515)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at dalvik.system.NativeStart.main(Native Method)
09-28 03:11:38.124: E/AndroidRuntime(1352): Caused by: java.lang.reflect.InvocationTargetException
09-28 03:11:38.124: E/AndroidRuntime(1352):     at java.lang.reflect.Method.invokeNative(Native Method)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at java.lang.reflect.Method.invoke(Method.java:515)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
09-28 03:11:38.124: E/AndroidRuntime(1352):     ... 11 more
09-28 03:11:38.124: E/AndroidRuntime(1352): Caused by: android.content.res.Resources$NotFoundException: String resource ID #0x3a98
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.content.res.Resources.getText(Resources.java:244)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at android.widget.TextView.setText(TextView.java:3888)
09-28 03:11:38.124: E/AndroidRuntime(1352):     at com.example.mybalancesheet.MainActivity.salaryEntered(MainActivity.java:60)
09-28 03:11:38.124: E/AndroidRuntime(1352):     ... 14 more

现在我应该怎么做才能删除它？

Answer 1

改变

tv.setText(c);

到

tv.setText(str);

使用 setText(CharSequence)，它需要一个字符串，而不是 setText(int)，它需要一个资源 ID。