我想在我的应用中设置Alert对话框的高度。由于我在警告对话框中使用了超过10个字段来填充设置为正数且设置为负按钮不可见的数据。现在我想降低警报对话框的高度。我使用 getwindow.setlayout 方法，但它仍处于同一高度。
package com.clone.tracking.unnamed.mytraining;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AlertDialog;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.support.design.widget.NavigationView;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.Menu;
import android.view.MenuItem;
import android.view.WindowManager;
import android.widget.RelativeLayout;
import com.clone.tracking.unnamed.mytraining.Model.Student;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.rengwuxian.materialedittext.MaterialEditText;
public class AdminControl extends AppCompatActivity
implements NavigationView.OnNavigationItemSelectedListener {
RelativeLayout rootLayout;
FirebaseDatabase db;
DatabaseReference students;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_admin_control);
db=FirebaseDatabase.getInstance();
students=db.getReference("Students");
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
fab.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
showStudentRegistrationDialog();
}
});
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(
this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
drawer.addDrawerListener(toggle);
toggle.syncState();
NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
navigationView.setNavigationItemSelectedListener(this);
}
private void showStudentRegistrationDialog() {
final AlertDialog.Builder dialog=new AlertDialog.Builder(this);
dialog.setTitle("REGISTER");
dialog.setMessage("Please fill All Fields");
//AlertDialog alertDialog = builder.create();
LayoutInflater inflater= LayoutInflater.from(this);
View student_layout=inflater.inflate(R.layout.layout_details,null);
final MaterialEditText edtName=student_layout.findViewById(R.id.edtName);
final MaterialEditText edtRoll=student_layout.findViewById(R.id.edtRoll);
final MaterialEditText edtSemester=student_layout.findViewById(R.id.edtSemester);
final MaterialEditText edtFees=student_layout.findViewById(R.id.edtFee);
final MaterialEditText edtDob=student_layout.findViewById(R.id.edtDOB);
final MaterialEditText edtEmail=student_layout.findViewById(R.id.edtEmail);
final MaterialEditText edtPhone=student_layout.findViewById(R.id.edtPhone);
final MaterialEditText edtSex=student_layout.findViewById(R.id.edtSEX);
final MaterialEditText edtAddress=student_layout.findViewById(R.id.edtAddress);
final MaterialEditText edtPercent=student_layout.findViewById(R.id.edtPercentage);
final MaterialEditText edtcollege=student_layout.findViewById(R.id.edtCollege);
final MaterialEditText edtDepartment=student_layout.findViewById(R.id.edtDepartment);
dialog.setView(student_layout);
//this set the buttons below the pop up dialog
dialog.setPositiveButton("REGISTER", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
if(TextUtils.isEmpty(edtName.getText().toString()))
{
Snackbar.make(rootLayout,"Name is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtRoll.getText().toString()))
{
Snackbar.make(rootLayout,"Roll Number is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtSemester.getText().toString()))
{
Snackbar.make(rootLayout,"Semester is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtFees.getText().toString()))
{
Snackbar.make(rootLayout,"Fee detail is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtDob.getText().toString()))
{
Snackbar.make(rootLayout,"Date of Birth is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtEmail.getText().toString()))
{
Snackbar.make(rootLayout,"Email address is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtPhone.getText().toString()))
{
Snackbar.make(rootLayout,"Phone Number is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtSex.getText().toString()))
{
Snackbar.make(rootLayout,"Sex is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtAddress.getText().toString()))
{
Snackbar.make(rootLayout,"Address is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtPercent.getText().toString()))
{
Snackbar.make(rootLayout,"OverAll Percentage is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtcollege.getText().toString()))
{
Snackbar.make(rootLayout,"College Name is required",Snackbar.LENGTH_SHORT).show();
return;
}
if(TextUtils.isEmpty(edtDepartment.getText().toString()))
{
Snackbar.make(rootLayout,"Department name is required",Snackbar.LENGTH_SHORT).show();
return;
}
Student student=new Student();
student.setName(edtName.getText().toString());
student.setRollno(edtRoll.getText().toString());
student.setSemester(edtSemester.getText().toString());
student.setFeedetails(edtFees.getText().toString());
student.setDob(edtDob.getText().toString());
student.setEmail(edtEmail.getText().toString());
student.setPhone(edtPhone.getText().toString());
student.setSex(edtSex.getText().toString());
student.setAddress(edtAddress.getText().toString());
student.setPercentage(edtPercent.getText().toString());
student.setCollegename(edtcollege.getText().toString());
student.setDepartment(edtDepartment.getText().toString());
String email= students.push().getKey();
students.child(email).setValue(student);
}
});
//this set the cancel button of the dialog
dialog.setNegativeButton("CANCEL", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
dialogInterface.dismiss();
}
});
AlertDialog alert = dialog.create();
alert.getWindow().setLayout(600,400);
dialog.show();
}
@Override
public void onBackPressed() {
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
if (drawer.isDrawerOpen(GravityCompat.START)) {
drawer.closeDrawer(GravityCompat.START);
} else {
super.onBackPressed();
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.admin_control, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();
if (id == R.id.nav_camera) {
// Handle the camera action
} else if (id == R.id.nav_gallery) {
} else if (id == R.id.nav_slideshow) {
} else if (id == R.id.nav_manage) {
} else if (id == R.id.nav_share) {
} else if (id == R.id.nav_send) {
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
}
答案 0 :(得分：0)
您可以使用此方法将Alert Dialoge设置为。
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(layout);
builder.setTitle("Title");
alertDialog = builder.create();
alertDialog.show();
alertDialog.getWindow().setLayout(600, 400);
您也可以在调用alertDialog.show()方法后使用此方法。
alertDialog.show();
WindowManager.LayoutParams lp = new WindowManager.LayoutParams();
lp.copyFrom(alertDialog.getWindow().getAttributes());
lp.width = 150;
lp.height = 500;
lp.x=-170;
lp.y=100;
alertDialog.getWindow().setAttributes(lp);
有关详情，请参阅此link。
答案 1 :(得分：0)
你可以这样做：
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(R.layout.dialog_change_password);
在您的布局文件中，修复了layout_height。：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="250dp"
android:layout_gravity="center"
android:layout_marginLeft="@dimen/activity_horizontal_margin"
android:layout_marginRight="@dimen/activity_horizontal_margin"
android:background="@drawable/bg_otp_dialog"
android:gravity="center"
android:orientation="vertical">
答案 2 :(得分：0)
尝试以下代码
AlertDialog dialog = builder.create();
// Finally, display the alert dialog
dialog.show();
// Get screen width and height in pixels
DisplayMetrics displayMetrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(displayMetrics);
// The absolute width of the available display size in pixels.
int displayWidth = displayMetrics.widthPixels;
// The absolute height of the available display size in pixels.
int displayHeight = displayMetrics.heightPixels;
// Initialize a new window manager layout parameters
WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
// Copy the alert dialog window attributes to new layout parameter instance
layoutParams.copyFrom(dialog.getWindow().getAttributes());
// Set alert dialog width equal to screen width 70%
int dialogWindowWidth = (int) (displayWidth * 0.7f);
// Set alert dialog height equal to screen height 70%
int dialogWindowHeight = (int) (displayHeight * 0.7f);
// Set the width and height for the layout parameters
// This will bet the width and height of alert dialog
layoutParams.width = dialogWindowWidth;
layoutParams.height = dialogWindowHeight;
// Apply the newly created layout parameters to the alert dialog window
dialog.getWindow().setAttributes(layoutParams);
下面是我的layout_details.xml文件
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:cardElevation="10dp"
>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:orientation="vertical"
android:layout_margin="20dp"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtName"
android:hint="Name"
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtRoll"
android:hint="Roll No."
android:inputType="number"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtSemester"
android:hint="Semester."
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtFee"
android:hint="Fee Details"
android:inputType="number"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtDOB"
android:hint="DOB(dd/mm/yyyy)"
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtSEX"
android:hint="M/F"
android:inputType="number"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtAddress"
android:hint="Address"
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtEmail"
android:hint="Email"
android:inputType="textEmailAddress"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtPhone"
android:hint="Phone number"
android:inputType="phone"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtPercentage"
android:hint="Overall percentage"
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtCollege"
android:hint="College Name"
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
<com.rengwuxian.materialedittext.MaterialEditText
android:id="@+id/edtDepartment"
android:hint="Department Name"
android:inputType="text"
android:text=""
android:textColor="@color/colorPrimary"
android:textColorHint="@color/colorPrimary"
android:textSize="16sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:met_singleLineEllipsis="true"
app:met_baseColor="@color/colorPrimary"
app:met_floatingLabel="highlight"
app:met_primaryColor="@color/colorPrimary"/>
</LinearLayout>
</ScrollView>
</android.support.v7.widget.CardView>