Android Studio 在单击时出错

Question

 public void Clicking(View view) {

    double one = Double.parseDouble(testtt.getText().toString());
    double two = Double.parseDouble(tessss.getText().toString());
}

已经；

testtt [TextView] = "0.0001974794"
tessss [TextView] = "0"

E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.Testing_Appi, PID: 2988 java.lang.IllegalStateException: Could not execute method for android:onClick at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:402) at android.view.View.performClick(View.java:5610) at android.view.View$PerformClick.run(View.java:22265) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invoke(Native Method) at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:397) at android.view.View.performClick(View.java:5610) at android.view.View$PerformClick.run(View.java:22265) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756) Caused by: java.lang.NumberFormatException: For input string: "0.0001974794" at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1306) at java.lang.Double.parseDouble(Double.java:547) at com.example.Testing_Appi.MainActivity.testor(MainActivity.java:153) at java.lang.reflect.Method.invoke(Native Method) at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:397) at android.view.View.performClick(View.java:5610) at android.view.View$PerformClick.run(View.java:22265) at android.os.Handler.handleCallback(Handler.java:751) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:866) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:756)

我找不到错误的地方！

Answer 1

示例：使用视图

按 ID 查找您的视图

EditText testttET = view.findViewById(R.id.testtt);
String text = testttET.getText().toString();

检查您的文本是否不为空

if(!text.equals("")){
    double value = Double.parseDouble(text);
}

Android Studio 在单击时出错

Android Studio Getting Error While onClick

android

textview