AlertDIalog删除不必要的空间 [英] AlertDIalog Remove unnecessary space

问题描述

我在自定义位置以自定义布局显示AlertDialog.

当我显示警报对话框时，即使自定义布局没有该空白，视图右侧也会出现更多空白.

我遵循此

这是我的 custom_obstacle_dialog.xml

 <?xml version ="1.0"encoding ="utf-8"?< androidx.constraintlayout.widget.ConstraintLayout xmlns:android =" http://schemas.android.com/apk/res/android"xmlns:app =" http://schemas.android.com/apk/res-autoandroid:layout_width =" wrap_content"android:layout_height =" wrap_content">< LinearLayoutandroid:layout_width =" wrap_content"android:layout_height =" wrap_content"android:gravity ="center"android:orientation =水平"android:padding ="10dp"android:weightSum ="3"app:layout_constraintStart_toStartOf =" parent"app:layout_constraintTop_toTopOf =" parent">< androidx.appcompat.widget.AppCompatToggleButtonandroid:id ="@@ id/one";android:layout_width =" 0dp"android:layout_height =" match_parent"android:layout_marginTop =" 15dp"android:layout_marginEnd =" 15dp"android:layout_marginBottom =" 15dp"android:layout_weight =" 1"android:background =" @ drawable/toggle";android:checked ="true"android:textOff =" Camera"android:textOn ="Camera"/>< androidx.appcompat.widget.AppCompatToggleButtonandroid:id =" @ + id/two"android:layout_width =" 0dp"android:layout_height =" match_parent"android:layout_marginTop =" 15dp"android:layout_marginEnd =" 15dp"android:layout_marginBottom =" 15dp"android:layout_weight =" 1"android:background =" @ drawable/toggle";android:checked ="true"android:textOff =" Lidar"android:textOn =" Lidar"/>< androidx.appcompat.widget.AppCompatToggleButtonandroid:id ="@@ id/three"android:layout_width =" 0dp"android:layout_height =" match_parent"android:layout_marginTop =" 15dp"android:layout_marginEnd =" 10dp"android:layout_marginBottom =" 15dp"android:layout_weight =" 1"android:background =" @ drawable/toggle";android:checked ="true"android:textOff ="声纳"android:textOn ="声纳"/></LinearLayout></androidx.constraintlayout.widget.ConstraintLayout> 

这是我的警报对话框

 最终的AlertDialog.Builder障碍对话框生成器=新的AlertDialog.Builder(this，R.style.CustomDialog);barrierDialogBu​​ilder.setMessage(null);LayoutInflater inflaterObstacle = this.getLayoutInflater();查看障碍对话框视图= inflaterObstacle.inflate(R.layout.custom_obstacle_dialog，null);barrierDialogBu​​ilder.setView(obstacleDialogView);cameraButton =(ToggleButton)障碍对话框视图.findViewById(R.id.one);lidarButton =(ToggleButton)barrierDialogView.findViewById(R.id.two);sonarButton =(ToggleButton)障碍对话框视图.findViewById(R.id.three);SharedPreferences app_resources = getApplicationContext().getSharedPreferences("App_Resources"，MODE_PRIVATE);boolean obsCamera = app_resources.getBoolean("ObsCamera"，true);boolean obsLidar = app_resources.getBoolean("ObsLidar"，true);boolean obsSonar = app_resources.getBoolean("ObsSonar"，true);cameraButton.setChecked(obsCamera);lidarButton.setChecked(obsLidar);sonarButton.setChecked(obsSonar);如果(obsSonar& amp; amp; amp; amp; quot; Status)sonarButton.setBackground(ContextCompat.getDrawable(getApplicationContext()，R.drawable.red_rounded_button));;如果(obsLidar&&lidarStatus)lidarButton.setBackground(ContextCompat.getDrawable(getApplicationContext()，R.drawable.red_rounded_button));如果(obsCamera& camerastatus)cameraButton.setBackground(ContextCompat.getDrawable(getApplicationContext()，R.drawable.red_rounded_button));cameraButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(CompoundButton buttonView，boolean isChecked){SharedPreferences.Editor编辑器= getApplicationContext().getSharedPreferences("App_Resources"，MODE_PRIVATE).edit();editor.putBoolean("ObsCamera"，isChecked)；editor.apply();barrierDetection.cameraDetectioin(已检查);}});lidarButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(CompoundButton buttonView，boolean isChecked){SharedPreferences.Editor编辑器= getApplicationContext().getSharedPreferences("App_Resources"，MODE_PRIVATE).edit();editor.putBoolean("ObsLidar"，isChecked)；editor.apply();barrierDetection.lidarDetectioin(已检查);}});sonarButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener(){@Overridepublic void onCheckedChanged(CompoundButton buttonView，boolean isChecked){SharedPreferences.Editor编辑器= getApplicationContext().getSharedPreferences("App_Resources"，MODE_PRIVATE).edit();editor.putBoolean("ObsSonar"，isChecked)；editor.apply();barrierDetection.ultrasonicDetectioin(已检查);}});barrierAlertDialog = barrierDialogBu​​ilder.create();barrierAlertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);barrierAlertDialog.getWindow().getAttributes().windowAnimations = R.style.SlideUpDownAnimation;WindowManager.LayoutParams wmlp = barrierAlertDialog.getWindow().getAttributes();wmlp.gravity = Gravity.TOP |重力权;wmlp.x = 100;//x位置wmlp.y = 100;//y位置barrierAlertDialog.show(); 

这是我使用的样式

 < style name =" CustomDialog"parent ="theme.AppCompat.Light.Dialog.Alert">< item name =" android:layout_width> wrap_content</item>< item name =" android:layout_height> wrap_content</item><！-< item name =" android:windowBackground"> @ null</item>->< item name =" android:windowNoTitle"> true</item></style> 

如果您需要更多信息，请随时询问.

谢谢

解决方案

我尝试更改窗口属性的大小，但没有达到您想要的.然后，我用 @ style/Theme.AppCompat.Dialog 替换了您现有的样式 Theme.AppCompat.Light.Dialog.Alert .现在，我们可以控制布局了.

更改为:

 < style name =" CustomDialog"parent ="@ style/Theme.AppCompat.Dialog".< item name =" android:layout_width> wrap_content</item>< item name =" android:layout_height> wrap_content</item>< item name =" android:windowNoTitle"> true</item></style> 

在您的布局文件中，我删除了多余的 LinearLayout .

 < androidx.constraintlayout.widget.ConstraintLayoutxmlns:android ="http://schemas.android.com/apk/res/android"xmlns:app =" http://schemas.android.com/apk/res-autoandroid:layout_width =" wrap_content"android:layout_height =" wrap_content"android:background =" @android:color/white"android:padding ="16dp">< androidx.appcompat.widget.AppCompatToggleButtonandroid:id ="@@ id/one";android:layout_width =" wrap_content"android:layout_height =" wrap_content"android:layout_marginEnd =" 16dp"android:background =#43212121"；android:checked ="true"android:textOff =" Camera"android:textOn ="Camera"app:layout_constraintBottom_toBottomOf =" parent"app:layout_constraintEnd_toStartOf =" @ id/two"app:layout_constraintTop_toTopOf =" parent"/>< androidx.appcompat.widget.AppCompatToggleButtonandroid:id =" @ + id/two"android:layout_width =" wrap_content"android:layout_height =" wrap_content"android:background =#43212121"；android:checked ="true"android:textOff =" Lidar"android:textOn =" Lidar"app:layout_constraintBottom_toBottomOf =" parent"app:layout_constraintEnd_toEndOf ="parent"app:layout_constraintStart_toStartOf =" parent"app:layout_constraintTop_toTopOf =" parent"/>< androidx.appcompat.widget.AppCompatToggleButtonandroid:id ="@@ id/three"android:layout_width =" wrap_content"android:layout_height =" wrap_content"android:layout_marginStart =" 16dp"android:background =#43212121"；android:checked ="true"android:textOff ="声纳"android:textOn ="声纳"app:layout_constraintBottom_toBottomOf =" parent"app:layout_constraintStart_toEndOf =" @ id/two"app:layout_constraintTop_toTopOf =" parent"/></androidx.constraintlayout.widget.ConstraintLayout> 

在您的Java代码中，我不确定是否进行了更改，因此将其粘贴.

  private void showDialogHere(){AlertDialog.Builder barrierDialogBu​​ilder =新的AlertDialog.Builder(this，R.style.CustomDialog);barrierDialogBu​​ilder.setMessage(null);LayoutInflater inflaterObstacle = this.getLayoutInflater();查看障碍对话框视图= inflaterObstacle.inflate(R.layout.my_dialog，null);barrierDialogBu​​ilder.setView(obstacleDialogView);AlertDialog barrierAlertDialog = barrierDialogBu​​ilder.create();barrierAlertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);窗口window = barrierAlertDialog.getWindow();WindowManager.LayoutParams params = window.getAttributes();params.gravity = Gravity.TOP |重力权;params.x = 100;//x位置params.y = 100;//y位置barrierAlertDialog.show();} 

让我知道这是否可行.

我将进一步尝试理解为什么样式不允许更改对话框大小.如果发现有用，我会发贴.

我还发现此解决方案适用于您的情况另一个答案.

I display the AlertDialog in custom position with a custom layout.

When I display my alert dialog I am getting more white space on the right side of the view even though my custom layout does not have that white space.

I follow this link did not get much help

Please check the attached image for details

Here is my custom_obstacle_dialog.xml

  <?xml version="1.0" encoding="utf-8"?>

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="horizontal"
        android:padding="10dp"
        android:weightSum="3"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <androidx.appcompat.widget.AppCompatToggleButton
            android:id="@+id/one"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginTop="15dp"
            android:layout_marginEnd="15dp"
            android:layout_marginBottom="15dp"
            android:layout_weight="1"
            android:background="@drawable/toggle"
            android:checked="true"
            android:textOff="Camera"
            android:textOn="Camera" />

        <androidx.appcompat.widget.AppCompatToggleButton
            android:id="@+id/two"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginTop="15dp"
            android:layout_marginEnd="15dp"
            android:layout_marginBottom="15dp"
            android:layout_weight="1"
            android:background="@drawable/toggle"
            android:checked="true"
            android:textOff="Lidar"
            android:textOn="Lidar" />

        <androidx.appcompat.widget.AppCompatToggleButton
            android:id="@+id/three"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_marginTop="15dp"
            android:layout_marginEnd="10dp"
            android:layout_marginBottom="15dp"
            android:layout_weight="1"
            android:background="@drawable/toggle"
            android:checked="true"
            android:textOff="Sonar"
            android:textOn="Sonar" />

    </LinearLayout>


</androidx.constraintlayout.widget.ConstraintLayout>

Here is my Alert Dialog

    final AlertDialog.Builder obstacleDialogBuilder = new AlertDialog.Builder(this, R.style.CustomDialog);
                obstacleDialogBuilder.setMessage(null);

                LayoutInflater inflaterObstacle = this.getLayoutInflater();
                View obstacleDialogView = inflaterObstacle.inflate(R.layout.custom_obstacle_dialog, null);
                obstacleDialogBuilder.setView(obstacleDialogView);

                cameraButton = (ToggleButton) obstacleDialogView.findViewById(R.id.one);
                lidarButton = (ToggleButton) obstacleDialogView.findViewById(R.id.two);
                sonarButton = (ToggleButton) obstacleDialogView.findViewById(R.id.three);

                SharedPreferences app_resources = getApplicationContext().getSharedPreferences("App_Resources", MODE_PRIVATE);
                boolean obsCamera = app_resources.getBoolean("ObsCamera", true);
                boolean obsLidar = app_resources.getBoolean("ObsLidar", true);
                boolean obsSonar = app_resources.getBoolean("ObsSonar", true);

                cameraButton.setChecked(obsCamera);
                lidarButton.setChecked(obsLidar);
                sonarButton.setChecked(obsSonar);

                if (obsSonar && ultrasonicStatus)
                    sonarButton.setBackground(ContextCompat.getDrawable(getApplicationContext(), R.drawable.red_rounded_button));

                if (obsLidar && lidarStatus)
                    lidarButton.setBackground(ContextCompat.getDrawable(getApplicationContext(), R.drawable.red_rounded_button));

                if (obsCamera && cameraStatus)
                    cameraButton.setBackground(ContextCompat.getDrawable(getApplicationContext(), R.drawable.red_rounded_button));

                cameraButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

                        SharedPreferences.Editor editor = getApplicationContext().getSharedPreferences("App_Resources", MODE_PRIVATE).edit();
                        editor.putBoolean("ObsCamera", isChecked);
                        editor.apply();

                        obstacleDetection.cameraDetectioin(isChecked);

                    }
                });

                lidarButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

                        SharedPreferences.Editor editor = getApplicationContext().getSharedPreferences("App_Resources", MODE_PRIVATE).edit();
                        editor.putBoolean("ObsLidar", isChecked);
                        editor.apply();

                        obstacleDetection.lidarDetectioin(isChecked);

                    }
                });

                sonarButton.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {

                        SharedPreferences.Editor editor = getApplicationContext().getSharedPreferences("App_Resources", MODE_PRIVATE).edit();
                        editor.putBoolean("ObsSonar", isChecked);
                        editor.apply();

                        obstacleDetection.ultrasonicDetectioin(isChecked);

                    }
                });


                obstacleAlertDialog = obstacleDialogBuilder.create();

                obstacleAlertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
                obstacleAlertDialog.getWindow().getAttributes().windowAnimations = R.style.SlideUpDownAnimation;
                WindowManager.LayoutParams wmlp = obstacleAlertDialog.getWindow().getAttributes();

                wmlp.gravity = Gravity.TOP | Gravity.RIGHT;
                wmlp.x = 100;   //x position
                wmlp.y = 100;   //y position

                obstacleAlertDialog.show();

Here is the style I am using

    <style name="CustomDialog" parent="Theme.AppCompat.Light.Dialog.Alert">>
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_height">wrap_content</item>
<!--        <item name="android:windowBackground">@null</item>-->
        <item name="android:windowNoTitle">true</item>
    </style>

If you need more information please feel free to ask.

Thank You

解决方案

I have tried with changing window attributes sizes but did not achieve what you wanted. Then I replaced your existing style Theme.AppCompat.Light.Dialog.Alert with @style/Theme.AppCompat.Dialog. Now this let us take control over layout.

Changed to:

    <style name="CustomDialog" parent="@style/Theme.AppCompat.Dialog">
        <item name="android:layout_width">wrap_content</item>
        <item name="android:layout_height">wrap_content</item>
        <item name="android:windowNoTitle">true</item>
    </style>

In your layout file, I removed redundant LinearLayout.

<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:background="@android:color/white"
    android:padding="16dp">

    <androidx.appcompat.widget.AppCompatToggleButton
        android:id="@+id/one"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginEnd="16dp"
        android:background="#43212121"
        android:checked="true"
        android:textOff="Camera"
        android:textOn="Camera"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toStartOf="@id/two"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatToggleButton
        android:id="@+id/two"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#43212121"
        android:checked="true"
        android:textOff="Lidar"
        android:textOn="Lidar"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <androidx.appcompat.widget.AppCompatToggleButton
        android:id="@+id/three"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:background="#43212121"
        android:checked="true"
        android:textOff="Sonar"
        android:textOn="Sonar"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintStart_toEndOf="@id/two"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

In your java code, I am not sure if I made changes so I will just paste it.

private void showDialogHere() {
        
        AlertDialog.Builder obstacleDialogBuilder = new AlertDialog.Builder(this, R.style.CustomDialog);
        obstacleDialogBuilder.setMessage(null);

        LayoutInflater inflaterObstacle = this.getLayoutInflater();
        View obstacleDialogView = inflaterObstacle.inflate(R.layout.my_dialog, null);
        obstacleDialogBuilder.setView(obstacleDialogView);

        AlertDialog obstacleAlertDialog = obstacleDialogBuilder.create();
        obstacleAlertDialog.requestWindowFeature(Window.FEATURE_NO_TITLE);

        Window window = obstacleAlertDialog.getWindow();
        WindowManager.LayoutParams params = window.getAttributes();

        params.gravity = Gravity.TOP | Gravity.RIGHT;
        params.x = 100;   //x position
        params.y = 100;   //y position

        obstacleAlertDialog.show();
    }

Let me know if this works.

I will further try to understand why the style was not letting change the dialog size. I will post if i found anything useful.

I also found this solution working in your case Another answer.

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