我在Dialoge内有自定义onActivityResult。但是它显示了像这样的错误
04-11 16:40:32.141: D/dalvikvm(8897): GC_EXTERNAL_ALLOC freed 689 objects / 53336 bytes in 100ms
04-11 16:40:43.901: D/UPC Code(8897): 000014312001220
04-11 16:40:44.001: D/AndroidRuntime(8897): Shutting down VM
04-11 16:40:44.001: W/dalvikvm(8897): threadid=1: thread exiting with uncaught exception (group=0x40028a00)
04-11 16:40:44.041: E/AndroidRuntime(8897): FATAL EXCEPTION: main
04-11 16:40:44.041: E/AndroidRuntime(8897): java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=195543262, result=-1, data=Intent { act=com.google.zxing.client.android.SCAN flg=0x80000 (has extras) }} to activity {com.heuristics.barcodescanner/com.heuristics.barcodescanner.MainActivity}: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.ActivityThread.deliverResults(ActivityThread.java:3712)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.ActivityThread.handleSendResult(ActivityThread.java:3754)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.ActivityThread.access$2800(ActivityThread.java:135)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2162)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.os.Handler.dispatchMessage(Handler.java:99)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.os.Looper.loop(Looper.java:143)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.ActivityThread.main(ActivityThread.java:4914)
04-11 16:40:44.041: E/AndroidRuntime(8897): at java.lang.reflect.Method.invokeNative(Native Method)
04-11 16:40:44.041: E/AndroidRuntime(8897): at java.lang.reflect.Method.invoke(Method.java:521)
04-11 16:40:44.041: E/AndroidRuntime(8897): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
04-11 16:40:44.041: E/AndroidRuntime(8897): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
04-11 16:40:44.041: E/AndroidRuntime(8897): at dalvik.system.NativeStart.main(Native Method)
04-11 16:40:44.041: E/AndroidRuntime(8897): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not for an application
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.view.ViewRoot.setView(ViewRoot.java:513)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:177)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:91)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.Dialog.show(Dialog.java:241)
04-11 16:40:44.041: E/AndroidRuntime(8897): at com.heuristics.barcodescanner.MainActivity.onActivityResult(MainActivity.java:137)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.Activity.dispatchActivityResult(Activity.java:3931)
04-11 16:40:44.041: E/AndroidRuntime(8897): at android.app.ActivityThread.deliverResults(ActivityThread.java:3708)
04-11 16:40:44.041: E/AndroidRuntime(8897): ... 11 more
04-11 16:40:46.191: I/Process(8897): Sending signal. PID: 8897 SIG: 9
我的onActivityResult就像这样
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode) {
case IntentIntegrator.REQUEST_CODE: {
if (resultCode != RESULT_CANCELED) {
IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);
if (scanResult != null) {
String upc = scanResult.getContents();
Log.d("UPC Code",upc);
Product_list.add(upc);
final Dialog dialog = new Dialog(getApplicationContext(), android.R.style.Theme_Translucent_NoTitleBar);
dialog.setCancelable(false);
dialog.setContentView(R.layout.quantity);
Toast.makeText(getApplicationContext(), "DIALOGUE", Toast.LENGTH_SHORT).show();
final Button navi_left;
Button navi_right, reset, ok;
final TextView quantity_text;
navi_left = (Button)dialog.findViewById(R.id.navi_left);
navi_right = (Button)dialog.findViewById(R.id.navi_right);
reset = (Button)dialog.findViewById(R.id.reset);
ok = (Button)dialog.findViewById(R.id.ok);
quantity_text = (TextView)dialog.findViewById(R.id.quantity_nums);
navi_left.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String pre_= quantity_text.getText().toString();
int post = Integer.parseInt(pre_);
int post_value;
if(post<=0)
{
post_value = post;
}
else
{
post_value = post-1;
}
}
});
navi_right.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String pre_= quantity_text.getText().toString();
int post_ = Integer.parseInt(pre_)+1;
quantity_text.setText(post_+"");
}
});
reset.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
quantity_text.setText(0);
}
});
ok.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
dialog.dismiss();
Quantity_list.add(quantity_text.getText().toString());
}
});
dialog.show();
ArrayAdapter<String> my_adapter = new Custom_Adapter(getApplicationContext(), Product_list);
my_adapter.notifyDataSetChanged();
my_list.setAdapter(my_adapter);
}
}
break;
}
}
}
请帮帮我。
答案 0 :(得分：3)
尝试
navi_left = (Button)dialog.findViewById(R.id.navi_left);
对所有按钮和textview执行相同操作
而不是getApplicationContext（）尝试使用MainActivity.this
final Dialog dialog = new Dialog(MainActivity.this, android.R.style.Theme_Translucent_NoTitleBar);