是的,我知道有AlertDialog。但我很惊讶地知道在Android中显示对话框有多么困难(好吧,至少不是程序员友好的)。
我曾经是一名。net开发人员,我想知道在android上是否有类似的功能?
if (MessageBox.Show("Sure?", "", MessageBoxButtons.YesNo) == DialogResult.Yes){
// Do something...
}
是的,我知道有AlertDialog。但我很惊讶地知道在Android中显示对话框有多么困难(好吧,至少不是程序员友好的)。
我曾经是一名。net开发人员,我想知道在android上是否有类似的功能?
if (MessageBox.Show("Sure?", "", MessageBoxButtons.YesNo) == DialogResult.Yes){
// Do something...
}
当前回答
问一个人他是否想打电话对话。
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.Toast;
public class Firstclass extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.first);
ImageView imageViewCall = (ImageView) findViewById(R.id.ring_mig);
imageViewCall.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v){
try{
showDialog("0728570527");
} catch (Exception e){
e.printStackTrace();
}
}
});
}
public void showDialog(final String phone) throws Exception {
AlertDialog.Builder builder = new AlertDialog.Builder(Firstclass.this);
builder.setMessage("Ring: " + phone);
builder.setPositiveButton("Ring", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which){
Intent callIntent = new Intent(Intent.ACTION_DIAL);// (Intent.ACTION_CALL);
callIntent.setData(Uri.parse("tel:" + phone));
startActivity(callIntent);
dialog.dismiss();
}
});
builder.setNegativeButton("Abort", new DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog, int which){
dialog.dismiss();
}
});
builder.show();
}
}
其他回答
试试这个:
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Confirm");
builder.setMessage("Are you sure?");
builder.setPositiveButton("YES", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// Do nothing but close the dialog
dialog.dismiss();
}
});
builder.setNegativeButton("NO", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
dialog.dismiss();
}
});
AlertDialog alert = builder.create();
alert.show();
1.创建AlertDialog,设置消息、标题和正面、负面按钮:
final AlertDialog alertDialog = new AlertDialog.Builder(this)
.setCancelable(false)
.setTitle("Confirmation")
.setMessage("Do you want to remove this Picture?")
.setPositiveButton("Yes",null)
.setNegativeButton("No",null)
.create();
2.现在在DialogInterface上找到两个按钮,然后单击setOnClickListener():
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialogInterface) {
Button yesButton = (alertDialog).getButton(android.app.AlertDialog.BUTTON_POSITIVE);
Button noButton = (alertDialog).getButton(android.app.AlertDialog.BUTTON_NEGATIVE);
yesButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//Now Background Class To Update Operator State
alertDialog.dismiss();
Toast.makeText(GroundEditActivity.this, "Click on Yes", Toast.LENGTH_SHORT).show();
//Do Something here
}
});
noButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
alertDialog.dismiss();
Toast.makeText(GroundEditActivity.this, "Click on No", Toast.LENGTH_SHORT).show();
//Do Some Thing Here
}
});
}
});
3.To 显示警报对话框:
alertDialog.show();
注意:不要忘记AlertDialog的Final Keyword。
你可以在Kotlin中轻松完成:
alert("Testing alerts") {
title = "Alert"
yesButton { toast("Yess!!!") }
noButton { }
}.show()
AlertDialog.Builder altBx = new AlertDialog.Builder(this);
altBx.setTitle("My dialog box");
altBx.setMessage("Welcome, Please Enter your name");
altBx.setIcon(R.drawable.logo);
altBx.setPositiveButton("Ok", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
if(edt.getText().toString().length()!=0)
{
// Show any message
}
else
{
}
}
});
altBx.setNeutralButton("Cancel", new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
//show any message
}
});
altBx.show();
芬兰湾的科特林的实现。
你可以像这样创建一个简单的函数:
fun dialogYesOrNo(
activity: Activity,
title: String,
message: String,
listener: DialogInterface.OnClickListener
) {
val builder = AlertDialog.Builder(activity)
builder.setPositiveButton("Yes", DialogInterface.OnClickListener { dialog, id ->
dialog.dismiss()
listener.onClick(dialog, id)
})
builder.setNegativeButton("No", null)
val alert = builder.create()
alert.setTitle(title)
alert.setMessage(message)
alert.show()
}
像这样叫它:
dialogYesOrNo(
this,
"Question",
"Would you like to eat?",
DialogInterface.OnClickListener { dialog, id ->
// do whatever you need to do when user presses "Yes"
}
})