問題描述

我正在創(chuàng)建一個包含 EditText 的自定義對話框，以便我可以從用戶那里獲取文本數(shù)據(jù):

I'm creating a custom dialog containing an EditText so that I can get text data from the user:

final EditText newKey = (EditText) findViewById(R.id.dialog_result);
AlertDialog.Builder keyBuilder = new AlertDialog.Builder(StegDroid.this);
keyBuilder
.setCancelable(false)
.setPositiveButton("Try Again", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int id) {
        Log.v("Dialog","New Key: "+newKey.getText().toString());
    }
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int id) {
            dialog.cancel();
       }
   });
AlertDialog dialog = keyBuilder.create();
dialog.setTitle("Decryption Failed");
dialog.setContentView(R.layout.decrypt_failed_dialog);
dialog.show();

但是我總是遇到這個異常:

However I always get this exception:

01-11 18:49:00.507: ERROR/AndroidRuntime(3461): android.util.AndroidRuntimeException: requestFeature() must be called before adding content
01-11 18:49:00.507: ERROR/AndroidRuntime(3461):     at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:181)
01-11 18:49:00.507: ERROR/AndroidRuntime(3461):     at com.android.internal.app.AlertController.installContent(AlertController.java:199)
01-11 18:49:00.507: ERROR/AndroidRuntime(3461):     at android.app.AlertDialog.onCreate(AlertDialog.java:251)

...

在 dialog.show() 行.我應該怎么做才能擺脫這種情況?

at the line of dialog.show(). What should I be doing to get rid of this?

推薦答案

你需要在創(chuàng)建對話框之前設置自定義視圖.如果您使用 AlertDialogsetView(View) 而不是 setContentView()>.

You need to set the custom view before creating the dialog. Also you need to use setView(View) instead of setContentView() if you are using the default positive and negative buttons provided for you by the AlertDialog.

final EditText newKey = (EditText) findViewById(R.id.dialog_result);
AlertDialog.Builder keyBuilder = new AlertDialog.Builder(StegDroid.this);
keyBuilder
.setCancelable(false)
.setPositiveButton("Try Again", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int id) {
        Log.v("Dialog","New Key: "+newKey.getText().toString());
    }
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
       public void onClick(DialogInterface dialog, int id) {
            dialog.cancel();
       }
   });
keyBuilder.setTitle("Decryption Failed");
keyBuilder.setView(getLayoutInflater().inflate(R.layout.decrypt_failed_dialog, null));
AlertDialog dialog = keyBuilder.create();
dialog.show();

這篇關于對話框問題:添加內(nèi)容前必須調(diào)用requestFeature()的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！