我的对话框中有两个按钮，它们在xml文件中编码：
<Button
android:id="@+id/continuegame"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/resulttext"
android:layout_marginRight="26dp"
android:layout_marginTop="23dp"
android:layout_toLeftOf="@+id/backmain"
android:onClick="continueGame"
android:text="@string/label_continue" />
<Button
android:id="@+id/backmain"
style="?android:attr/buttonStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/continuegame"
android:layout_alignBottom="@+id/continuegame"
android:layout_alignParentRight="true"
android:layout_marginRight="52dp"
android:onClick="backToMain"
android:text="@string/label_mainmenu" />
我已成功调用对话框，但问题是当我单击“继续”或“返回主菜单”按钮时，应用程序崩溃了。
这是我在GuessActivity.java中的代码：
//when Submit button is clicked this method is called
public void checkAnswer(View view){
EditText userinput = (EditText) findViewById(R.id.inputLetter);
String temp = userinput.getText().toString();
char userletter = temp.charAt(0);
Bundle fromplay = getIntent().getExtras();
String temp2 = fromplay.getString("missing");
char missingletter = temp2.charAt(0);
Log.d ("temp2", temp2);
if(userletter == missingletter){
Log.d ("right", "right");
correct = 1;
//will call a dialog box
resultDialogBox(correct);
} else {
Log.d ("wrong", "wrong");
correct = 0;
//will call a dialog box
resultDialogBox(correct);
}
}
//the dialog box
public void resultDialogBox(int correct){
this.correct = correct;
Dialog resultbox = new Dialog(GuessActivity.this);
resultbox.setContentView(R.layout.dialog_result);
resultbox.setCanceledOnTouchOutside(false);
TextView result = (TextView) resultbox.findViewById(R.id.resulttext);
if(correct == 1){
result.setText("Correct!");
} else {
result.setText("Wrong!");
}
resultbox.show();
}
//method of the continue button
public void continueGame(View view){
Intent con = new Intent(GuessActivity.this, PlayActivity.class);
GuessActivity.this.startActivity(con);
}
//method of the back to main button
public void backToMain(View view){
Intent backtomain = new Intent(GuessActivity.this, MainActivity.class);
GuessActivity.this.startActivity(backtomain);
}
logcat：
04-28 13:54:48.860: W/dalvikvm(24493): threadid=1: thread exiting with uncaught exception (group=0x4161c8b0)
04-28 13:54:48.870: E/AndroidRuntime(24493): FATAL EXCEPTION: main
04-28 13:54:48.870: E/AndroidRuntime(24493): java.lang.IllegalStateException: Could not find a method continueGame(View) in the activity class android.view.ContextThemeWrapper for onClick handler on view class android.widget.Button with id 'continuegame'
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.view.View$1.onClick(View.java:3801)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.view.View.performClick(View.java:4421)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.view.View$PerformClick.run(View.java:17903)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.os.Handler.handleCallback(Handler.java:730)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.os.Handler.dispatchMessage(Handler.java:92)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.os.Looper.loop(Looper.java:213)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.app.ActivityThread.main(ActivityThread.java:5225)
04-28 13:54:48.870: E/AndroidRuntime(24493): at java.lang.reflect.Method.invokeNative(Native Method)
04-28 13:54:48.870: E/AndroidRuntime(24493): at java.lang.reflect.Method.invoke(Method.java:525)
04-28 13:54:48.870: E/AndroidRuntime(24493): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:741)
04-28 13:54:48.870: E/AndroidRuntime(24493): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
04-28 13:54:48.870: E/AndroidRuntime(24493): at dalvik.system.NativeStart.main(Native Method)
04-28 13:54:48.870: E/AndroidRuntime(24493): Caused by: java.lang.NoSuchMethodException: continueGame [class android.view.View]
04-28 13:54:48.870: E/AndroidRuntime(24493): at java.lang.Class.getConstructorOrMethod(Class.java:423)
04-28 13:54:48.870: E/AndroidRuntime(24493): at java.lang.Class.getMethod(Class.java:787)
04-28 13:54:48.870: E/AndroidRuntime(24493): at android.view.View$1.onClick(View.java:3794)
04-28 13:54:48.870: E/AndroidRuntime(24493): ... 11 more
04-28 13:54:50.441: I/Process(24493): Sending signal. PID: 24493 SIG: 9
04-28 13:54:50.692: D/libEGL(24827): loaded /vendor/lib/egl/libEGL_adreno.so
04-28 13:54:50.692: D/libEGL(24827): loaded /vendor/lib/egl/libGLESv1_CM_adreno.so
04-28 13:54:50.692: D/libEGL(24827): loaded /vendor/lib/egl/libGLESv2_adreno.so
04-28 13:54:50.692: I/Adreno-EGL(24827): <qeglDrvAPI_eglInitialize:316>: EGL 1.4 QUALCOMM build: (CL4169980)
04-28 13:54:50.692: I/Adreno-EGL(24827): OpenGL ES Shader Compiler Version: 17.01.10.SPL
04-28 13:54:50.692: I/Adreno-EGL(24827): Build Date: 12/01/13 Sun
04-28 13:54:50.692: I/Adreno-EGL(24827): Local Branch:
04-28 13:54:50.692: I/Adreno-EGL(24827): Remote Branch:
04-28 13:54:50.692: I/Adreno-EGL(24827): Local Patches:
04-28 13:54:50.692: I/Adreno-EGL(24827): Reconstruct Branch:
04-28 13:54:50.732: D/OpenGLRenderer(24827): Enabling debug mode 0
答案 0 :(得分：0)
试试这个..
public void resultDialogBox(int correct){
this.correct = correct;
Dialog resultbox = new Dialog(GuessActivity.this);
resultbox.setContentView(R.layout.dialog_result);
resultbox.setCanceledOnTouchOutside(false);
TextView result = (TextView) resultbox.findViewById(R.id.resulttext);
Button continuegame = (Button) resultbox.findViewById(R.id.continuegame);
Button backmain = (Button) resultbox.findViewById(R.id.backmain);
if(correct == 1){
result.setText("Correct!");
} else {
result.setText("Wrong!");
}
continuegame.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent con = new Intent(GuessActivity.this, PlayActivity.class);
GuessActivity.this.startActivity(con);
}
});
backmain.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
Intent backtomain = new Intent(GuessActivity.this, MainActivity.class);
GuessActivity.this.startActivity(backtomain);
}
});
resultbox.show();
}
android:onClick="backToMain"的和删除 android:onClick="continueGame"和XML