当我只有一个 fragment 一(横向)的布局时，我已经有了这个工作，但现在有了额外的纵向版本，我的应用程序崩溃并在 switch (v.getId())< 行中出现 IllegalStateException/
代码如下:
public void onTextViewClick(View v)
{
DialogFragment newFragment2 = new existingLessonDialog();
DialogFragment newFragment = new newLessonDialog();
if (v.getTag().equals("stunde")) newFragment2.show(getSupportFragmentManager(), "missiles");
switch (v.getId())
{
case R.id.uhrzeit1:
index = 0;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit2:
index = 1;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit3:
index = 2;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit4:
index = 3;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit5:
index = 4;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit6:
index = 5;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit7:
index = 6;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit8:
index = 7;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit9:
index = 8;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit10:
index = 9;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
case R.id.uhrzeit11:
index = 10;
newFragment.show(getSupportFragmentManager(), "missiles");
break;
}
}
和
class newLessonDialog extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
// Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
builder.setView(inflater.inflate(R.layout.new_lesson_dialog, null))
// Add action buttons,
.setPositiveButton("Speichern", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id)
{
EditText eF = (EditText)getDialog().findViewById(R.id.editFach);
fach = eF.getText().toString();
EditText eR = (EditText)getDialog().findViewById(R.id.editRaum);
raum = eR.getText().toString();
EditText eL = (EditText)getDialog().findViewById(R.id.editLehrer);
lehrer = eL.getText().toString();
if (tag != null)
{
save(fach, raum, lehrer, tag, index);
}
else
{
Toast.makeText(getAppContext(), "Zuerst Wochentag auswählen!", Toast.LENGTH_SHORT);
}
}
})
.setNegativeButton("Abbrechen", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
newLessonDialog.this.getDialog().cancel();
}
});
return builder.create();
}
public void onStart()
{
super.onStart();
// This will get the radiogroup
RadioGroup rGroup = (RadioGroup)getDialog().findViewById(R.id.radioGroup);
// This will get the radiobutton in the radiogroup that is checked
RadioButton checkedRadioButton = (RadioButton)rGroup.findViewById(rGroup.getCheckedRadioButtonId());
rGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener()
{
public void onCheckedChanged(RadioGroup rGroup, int checkedId)
{
// This will get the radiobutton that has changed in its check state
RadioButton checkedRadioButton = (RadioButton)rGroup.findViewById(checkedId);
// This puts the value (true/false) into the variable
boolean isChecked = checkedRadioButton.isChecked();
// If the radiobutton that has changed in check state is now checked...
if (isChecked)
{
tag = checkedRadioButton.getText().toString();
}
}
});
}
}
class existingLessonDialog extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
// Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
builder.setView(inflater.inflate(R.layout.existing_lesson_dialog, null))
// Add action buttons,
.setPositiveButton("Neue HA", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
}
})
.setNeutralButton("Neue KA", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
}
})
.setNegativeButton("Abbrechen", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
existingLessonDialog.this.getDialog().cancel();
}
});
return builder.create();
}
}
和横向布局:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity$fragmentTab1">
<TextView
android:id="@+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollView"
android:layout_marginTop="25dp">
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/tableRow2">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="07:45 - 08:30"
android:id="@+id/uhrzeit1"
android:layout_margin="5dp"
android:layout_column="0"
android:lines="2"
android:textSize="25sp"
android:clickable="true"
android:onClick="onTextViewClick"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Deutsch \n in 404"
android:id="@+id/montag1"
android:layout_margin="5dp"
android:layout_column="1"
android:lines="2"
android:layout_weight="20"
android:textSize="25sp"
android:clickable="true"
android:onClick="onTextViewClick"
android:tag="stunde"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/dienstag1"
android:layout_margin="5dp"
android:layout_column="2"
android:lines="2"
android:layout_weight="20"
android:textSize="25sp"
android:clickable="true"
android:onClick="onTextViewClick"
android:tag="stunde"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/mittwoch1"
android:layout_margin="5dp"
android:layout_column="3"
android:lines="2"
android:layout_weight="20"
android:textSize="25sp"
android:clickable="true"
android:onClick="onTextViewClick"
android:tag="stunde"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/donnerstag1"
android:layout_margin="5dp"
android:layout_column="4"
android:lines="2"
android:layout_weight="20"
android:textSize="25sp"
android:clickable="true"
android:onClick="onTextViewClick"
android:tag="stunde"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/freitag1"
android:layout_margin="5dp"
android:layout_column="5"
android:lines="2"
android:layout_weight="20"
android:textSize="25sp"
android:clickable="true"
android:onClick="onTextViewClick"
android:tag="stunde"/>
</TableRow>
还有 10 个这样的表格行
和纵向布局:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
android:paddingBottom="@dimen/activity_vertical_margin"
tools:context=".MainActivity$fragmentTab1">
<TextView
android:id="@+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollView">
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TableRow
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="07:45 -\n08:30"
android:id="@+id/uhrzeit1p"
android:layout_column="0"
android:textIsSelectable="false"
android:textSize="25sp"
android:layout_margin="5dp"
android:lines="2"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/actualLesson1"
android:layout_column="1"
android:textIsSelectable="false"
android:textSize="25sp"
android:layout_margin="5dp"
android:lines="2"
android:layout_weight="50"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Text"
android:id="@+id/actualNote1"
android:layout_column="2"
android:textIsSelectable="false"
android:textSize="25sp"
android:layout_margin="5dp"
android:lines="2"
android:layout_weight="50"/>
</TableRow>
这里还有 10 个像这样的表格行
最后是 logcat:
08-15 13:02:45.938 438-453/? I/ActivityManager: Displayed de.nathan.android.droidschool/.MainActivity: +6s548ms
08-15 13:04:10.378 27691-27691/de.nathan.android.droidschool D/AndroidRuntime: Shutting down VM
08-15 13:04:10.388 27691-27691/de.nathan.android.droidschool W/dalvikvm: threadid=1: thread exiting with uncaught exception (group=0x41760700)
08-15 13:04:10.408 27691-27691/de.nathan.android.droidschool E/AndroidRuntime: FATAL EXCEPTION: main
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:3633)
at android.view.View.performClick(View.java:4240)
at android.view.View$PerformClick.run(View.java:17721)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at android.view.View$1.onClick(View.java:3628)
... 11 more
Caused by: java.lang.NullPointerException
at de.nathan.android.droidschool.MainActivity.onTextViewClick(MainActivity.java:299)
... 14 more
08-15 13:04:10.428 438-665/? W/ActivityManager: Force finishing activity de.nathan.android.droidschool/.MainActivity
08-15 13:04:10.948 438-454/? W/ActivityManager: Activity pause timeout for ActivityRecord{41ef1e68 u0 de.nathan.android.droidschool/.MainActivity}
08-15 13:04:21.548 438-454/? W/ActivityManager: Activity destroy timeout for ActivityRecord{41ef1e68 u0 de.nathan.android.droidschool/.MainActivity}
08-15 13:09:10.448 27691-27691/de.nathan.android.droidschool I/Process: Sending signal. PID: 27691 SIG: 9
最佳答案
if (v.getTag().equals("stunde"))
newFragment2.show(getSupportFragmentManager(), "missiles")
这是否改变/显示了没有 commit() 的 fragment ； ??
关于java - Android:IllegalStateException 调用 DialogFragment，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/18251750/