我有一个列表视图，包含从数据库中填充。我在每一行上放了一个按钮，当它点击它时会显示一个AlertDialog框。
我的项目没有错误，但每次单击AlertDialog框的按钮时，应用程序都会崩溃。
这是我的代码：
donate_now.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
AlertDialog.Builder alertbox = new AlertDialog.Builder(ProjectsList.this);
alertbox.setTitle("SMS");
alertbox.setMessage (Html.fromHtml(("Ihr SMS wird vorbereitet. Bitte
bestätigen Sie mit 'Ok' und senden Sie danach die SMS ab!
<p><small>Sie helfen dem Projekt mit " +mPriceIndex + ".
Betrag je SMS zzgl. Transport. Der Betrag abzüglich 17 Cent
geht direkt an die Partner-Organisation.")));
alertbox.setNeutralButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("address", mShortcodeIndex);
sendIntent.putExtra("sms_body", mKeywordIndex);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
}
});
alertbox.show();
有人可以帮我分析哪里出错了？
这是调试：
11-14 10:38:37.834: E/AndroidRuntime(509): android.view.WindowManager$BadTokenException: Unable to add window -- token android.app.LocalActivityManager$LocalActivityRecord@44c1e1b0 is not valid; is your activity running?
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewRoot.setView(ViewRoot.java:468)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.Window$LocalWindowManager.addView(Window.java:424)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.app.Dialog.show(Dialog.java:239)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.app.AlertDialog$Builder.show(AlertDialog.java:802)
11-14 10:38:37.834: E/AndroidRuntime(509): at spendino.de.ProjectsList$MySimpleCursorAdapter$2.onClick(ProjectsList.java:213)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.View.performClick(View.java:2364)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.View.onTouchEvent(View.java:4179)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.widget.TextView.onTouchEvent(TextView.java:6541)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.View.dispatchTouchEvent(View.java:3709)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1659)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1107)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.app.Activity.dispatchTouchEvent(Activity.java:2061)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1643)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.view.ViewRoot.handleMessage(ViewRoot.java:1691)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.os.Handler.dispatchMessage(Handler.java:99)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.os.Looper.loop(Looper.java:123)
11-14 10:38:37.834: E/AndroidRuntime(509): at android.app.ActivityThread.main(ActivityThread.java:4363)
11-14 10:38:37.834: E/AndroidRuntime(509): at java.lang.reflect.Method.invokeNative(Native Method)
11-14 10:38:37.834: E/AndroidRuntime(509): at java.lang.reflect.Method.invoke(Method.java:521)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
11-14 10:38:37.834: E/AndroidRuntime(509): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
11-14 10:38:37.834: E/AndroidRuntime(509): at dalvik.system.NativeStart.main(Native Method)
以下是完整的活动代码：
public class ProjectsList extends Activity implements OnItemClickListener{
/** Called when the activity is first created. */
ListView listView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.projects_list);
doSync();
ListView listView = (ListView) findViewById(R.id.lstText);
listView.setOnItemClickListener(this);
listView.setAdapter(new MySimpleCursorAdapter(this, R.layout.listitems,
managedQuery(Uri.withAppendedPath(Provider.CONTENT_URI,
Database.Project.NAME), new String[] { BaseColumns._ID,
Database.Project.C_PROJECTTITLE,
Database.Project.C_SMALLIMAGE, Database.Project.C_PROJECTDESCRIPTION, Database.Project.C_ORGANIZATIONTITLE, Database.Project.C_DONATIONAMOUNT, Database.Project.C_KEYWORD, Database.Project.C_PRICE, Database.Project.C_SHORTCODE}, null, null, null),
new String[] { Database.Project.C_PROJECTTITLE,
Database.Project.C_SMALLIMAGE, Database.Project.C_PROJECTDESCRIPTION, Database.Project.C_ORGANIZATIONTITLE, Database.Project.C_DONATIONAMOUNT}, new int[] {
R.id.txt_title, R.id.image, R.id.txt_list_desc, R.id.txt_org, R.id.btn_amount}));
}
public void onItemClick(AdapterView<?> l, View v, int position, long id) {
Intent listIntent = new Intent(this, DetailsActivity.class);
listIntent.putExtra("spendino.de.ProjectDetail.position",position);
listIntent.setData(Uri.withAppendedPath(Uri.withAppendedPath(
Provider.CONTENT_URI, Database.Project.NAME), Long
.toString(id)));
startActivity(listIntent);
}
/*
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.ui_menu_sync:
doSync();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
*/
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
void doSync() {
Intent serviceIntent = new Intent(this, Sync.class);
startService(serviceIntent);
}
class MySimpleCursorAdapter extends SimpleCursorAdapter {
Context context=null;
ImageLoader loader = null;
private LayoutInflater mInflater = null;
private int mProjectNameIndex = -1;
private int mOrgNameIndex = -1;
private int mDescIndex = -1;
private int mDonationIndex = -1;
private int mSmallImageIndex = -1;
private int mKeywordIndex = -1;
private int mPriceIndex = -1;
private int mShortcodeIndex = -1;
public MySimpleCursorAdapter(Context context, int layout, Cursor c,
String[] from, int[] to) {
super(context, layout, c, from, to);
loader = new ImageLoader(context);
this.context = context;
mInflater = getLayoutInflater();
mProjectNameIndex = c.getColumnIndexOrThrow(Database.Project.C_PROJECTTITLE);
mOrgNameIndex = c.getColumnIndexOrThrow(Database.Project.C_ORGANIZATIONTITLE);
mDescIndex = c.getColumnIndexOrThrow(Database.Project.C_PROJECTDESCRIPTION);
mDonationIndex = c.getColumnIndexOrThrow(Database.Project.C_DONATIONAMOUNT);
mSmallImageIndex = c.getColumnIndexOrThrow(Database.Project.C_SMALLIMAGE);
mKeywordIndex = c.getColumnIndexOrThrow(Database.Project.C_KEYWORD);
mPriceIndex = c.getColumnIndexOrThrow(Database.Project.C_PRICE);
mShortcodeIndex = c.getColumnIndexOrThrow(Database.Project.C_SHORTCODE);
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View convertView = mInflater.inflate(R.layout.listitems, null);
convertView.setClickable(true);
convertView.setFocusable(true);
convertView.setBackgroundResource(android.R.drawable.menuitem_background);
//convertView.setOnItemClickListener(ProjectsList.this);
convertView.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
/*
Intent myIntent = new Intent(view.getContext(), DetailsActivity.class);
String position = null;
myIntent.putExtra("spendino.de.ProjectDetail.position",position);
long id = 0;
myIntent.setData(Uri.withAppendedPath(Uri.withAppendedPath(
Provider.CONTENT_URI, Database.Project.NAME), Long
.toString(id)));
view.getContext().startActivity(myIntent);
}
});*/
}
});
return convertView;
}
protected void onItemClick(AdapterView<?> l, View v, int position, long id) {
Intent listIntent = new Intent(ProjectsList.this, DetailsActivity.class);
listIntent.putExtra("spendino.de.ProjectDetail.position",position);
listIntent.setData(Uri.withAppendedPath(Uri.withAppendedPath(
Provider.CONTENT_URI, Database.Project.NAME), Long
.toString(id)));
startActivity(listIntent);}
@Override
public void bindView(View view, Context context, Cursor cursor) {
// Get your views from 'view'
TextView projectTextView = (TextView) view.findViewById(R.id.txt_title);
TextView orgTextView = (TextView) view.findViewById(R.id.txt_org);
TextView descTextView = (TextView) view.findViewById(R.id.txt_list_desc);
ImageView someImageView = (ImageView) view.findViewById(R.id.image);
Button donate_now = (Button) view.findViewById(R.id.btn_donate);
Button btn_amount = (Button) view.findViewById(R.id.btn_amount);
donate_now.setFocusable(true);
donate_now.setClickable(true);
// Set the data
projectTextView.setText(cursor.getString(mProjectNameIndex));
orgTextView.setText("von " + cursor.getString(mOrgNameIndex));
descTextView.setText(Html.fromHtml(cursor.getString(mDescIndex)+"..."));
btn_amount.setText("Summe Spende: " + cursor.getString(mDonationIndex)+" €");
donate_now.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
AlertDialog.Builder alertbox = new AlertDialog.Builder(view.getContext());
alertbox.setTitle("SMS");
alertbox.setMessage (Html.fromHtml(("Ihr SMS wird vorbereitet. Bitte bestätigen Sie mit 'Ok' und senden Sie danach die SMS ab! <p><small>Sie helfen dem Projekt mit " +mPriceIndex + ". Betrag je SMS zzgl. Transport. Der Betrag abzüglich 17 Cent geht direkt an die Partner-Organisation.")));
alertbox.setNeutralButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("address", mShortcodeIndex);
sendIntent.putExtra("sms_body", mKeywordIndex);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
}
});
alertbox.show();
}
});
loader.DisplayImage(cursor.getString(mSmallImageIndex ), context, someImageView);
}
public void setViewImage(ImageView v, String value) {
v.setTag(value);
loader.DisplayImage(value, context, v);
}
}
}
答案 0 :(得分：1)
您需要为alertDialog提供正确的上下文，该上下文必须是当前活动上下文。因此，您需要声明活动的上下文。
//At the beginning of class where you declare the Listview
ListView lv;
Context ctx = this;
在你的方法中。
donate_now.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
AlertDialog.Builder alertbox = new AlertDialog.Builder(ctx);
alertbox.setTitle("SMS");
alertbox.setMessage (Html.fromHtml(("Ihr SMS wird vorbereitet. Bitte bestätigen Sie mit 'Ok' und senden Sie danach die SMS ab! <p><small>Sie helfen dem Projekt mit " +mPriceIndex + ". Betrag je SMS zzgl. Transport. Der Betrag abzüglich 17 Cent geht direkt an die Partner-Organisation.")));
alertbox.setNeutralButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("address", mShortcodeIndex);
sendIntent.putExtra("sms_body", mKeywordIndex);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
}
});
alertbox.show();
}
});
答案 1 :(得分：0)
最简单的解决方案是调用 getParent（）而不是 ProjectsList.this 。根据{{3}}，它似乎完全正常。
donate_now.setOnClickListener(new OnClickListener() {
public void onClick(View view) {
AlertDialog.Builder alertbox = new AlertDialog.Builder(getParent());
alertbox.setTitle("SMS");
alertbox.setMessage (Html.fromHtml(("Ihr SMS wird vorbereitet. Bitte
bestätigen Sie mit 'Ok' und senden Sie danach die SMS ab!
<p><small>Sie helfen dem Projekt mit " +mPriceIndex + ".
Betrag je SMS zzgl. Transport. Der Betrag abzüglich 17 Cent
geht direkt an die Partner-Organisation.")));
alertbox.setNeutralButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface arg0, int arg1) {
Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.putExtra("address", mShortcodeIndex);
sendIntent.putExtra("sms_body", mKeywordIndex);
sendIntent.setType("vnd.android-dir/mms-sms");
startActivity(sendIntent);
}
});
alertbox.show();
我在我的代码上测试了它（大部分是相同的）并且它完美地工作!!