我有一个有两个按钮的Android应用程序。所以基本上我要做的是当用户点击页面上的“分享按钮”时，会出现一个警告对话框，提示用户输入他们的电子邮件地址。这是我到目前为止所拥有的。我尝试过EditView，但它对我来说效果不佳。
提前致谢！
package com.colors;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
final Context context = this;
private Button button;
private Button shareButton;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button = (Button) findViewById(R.id.button);
shareButton = (Button) findViewById(R.id.shareButton);
// add button listener for Welcome Message.
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set the title of the Alert Dialog
alertDialogBuilder.setTitle("Welcome!");
// set dialog message
alertDialogBuilder
.setMessage("Program Description here...")
.setCancelable(false)
.setNegativeButton("OK",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if no is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
// Button listener for Share Button
shareButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(
context);
// set the title of the Alert Dialog
alertDialogBuilder.setTitle("Share");
// set dialog message
alertDialogBuilder
.setMessage("Would like to a user input here.")
.setCancelable(false)
.setPositiveButton("Send!",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if no is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
})
.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog,
int id) {
// if no is clicked, just close
// the dialog box and do nothing
dialog.cancel();
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
}
});
}
}
答案 0 :(得分：1)
这可能对您有所帮助。
shareButton.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
AlertDialog.Builder al1 = new Builder(
AgriListView.this);
al1.setMessage("Share Something");
al1.setPositiveButton("Share",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
final EditText input = new EditText(
AgriListView.this);
input.setSingleLine();
AlertDialog.Builder al = new Builder(
AgriListView.this);
al.setTitle("Enter New Value");
al.setView(input);
al.setCancelable(true);
al.setIcon(R.drawable.bt);
al.setPositiveButton(
"OK",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
int len = input
.length();
if (!(len == 0)) {
Toast.makeText(
AgriListView.this,
"Entered text is: "+input.getText()
,
Toast.LENGTH_SHORT)
.show();
} else {
Toast.makeText(
getApplicationContext(),
"Enter Value Properly",
Toast.LENGTH_LONG)
.show();
}
}
});
al.setNegativeButton(
"Cancel",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
dialog.cancel();
}
});
AlertDialog alert = al.create();
alert.show();
}
});
al1.setNegativeButton("Cancel",
new DialogInterface.OnClickListener() {
public void onClick(
DialogInterface dialog,
int which) {
dialog.cancel();
}
});
AlertDialog alert1 = al1.create();
alert1.show();
}
});
此代码使用Edittext值创建对话框。
答案 1 :(得分：0)
你可以这样做。
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("Title");
alert.setMessage("Message");
// Set an EditText view to get user input
final EditText input = new EditText(this);
alert.setView(input);
alert.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
String value = input.getText();
// Do something with value!
}
});
alert.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
// Canceled.
}
});
alert.show();