这是我的问题:
我正在尝试显示一个 AlertDialog,但我似乎无法做到。
这是我的代码:
tv.setOnClickListener(new OnClickListener()
{
@Override
public void onClick(View arg0)
{
final EditText input = new EditText(c);
AlertDialog.Builder adb = new AlertDialog.Builder(c);
adb.setTitle(lb)
.setMessage("Test")
.setView(input)
.setPositiveButton("Ok", new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which)
{
//tv.setText(input.getEditableText().toString());
Toast.makeText(c, input.getEditableText().toString(), Toast.LENGTH_LONG).show();
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int whichButton)
{
dialog.cancel();
}
}).show();
}
});
我想在用户单击标签时显示此 AlertDialog,然后在用户按 OK 时使用编辑文本更改标签值。
但是当点击时显示对话框时,它会崩溃。
07-18 16:04:59.240: E/AndroidRuntime(10503): FATAL EXCEPTION: main
07-18 16:04:59.240: E/AndroidRuntime(10503): android.view.WindowManager$BadTokenException: Unable to add window --
token null is not for an application
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.view.ViewRootImpl.setView(ViewRootImpl.java:710)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:345)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.app.Dialog.show(Dialog.java:277)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.app.AlertDialog$Builder.show(AlertDialog.java:932)
07-18 16:04:59.240: E/AndroidRuntime(10503): at com.technicachat.webdatadomo.Consignes$2$1.run(Consignes.java:114)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.app.Activity.runOnUiThread(Activity.java:4784)
07-18 16:04:59.240: E/AndroidRuntime(10503): at com.technicachat.webdatadomo.Consignes$2.onClick(Consignes.java:90)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.view.View.performClick(View.java:4211)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.view.View$PerformClick.run(View.java:17267)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.os.Handler.handleCallback(Handler.java:615)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.os.Handler.dispatchMessage(Handler.java:92)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.os.Looper.loop(Looper.java:137)
07-18 16:04:59.240: E/AndroidRuntime(10503): at android.app.ActivityThread.main(ActivityThread.java:4898)
07-18 16:04:59.240: E/AndroidRuntime(10503): at java.lang.reflect.Method.invokeNative(Native Method)
07-18 16:04:59.240: E/AndroidRuntime(10503): at java.lang.reflect.Method.invoke(Method.java:511)
07-18 16:04:59.240: E/AndroidRuntime(10503): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
07-18 16:04:59.240: E/AndroidRuntime(10503): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
07-18 16:04:59.240: E/AndroidRuntime(10503): at dalvik.system.NativeStart.main(Native Method)
在我收到此消息之前更少的行:
07-18 16:04:56.645: I/Choreographer(10503): Skipped 32 frames! The application may be doing too much work on its main thread.
我知道这意味着什么,但我只是在显示一个对话框,这不是很多工作!
我希望你们能帮助我!
再见