更改对话框在屏幕android

问题描述 投票：0回答：18

我在我的

Activity
中做了一个简单的AlertDialog：

View view = layoutInflater.inflate(R.layout.my_dialog, null);
AlertDialog infoDialog = new AlertDialog.Builder(MyActivity.this)
                    .setView(view)  
                    .create();

infoDialog.show();

使用上面的代码，dialog 显示在屏幕的（大约）中心。

我想知道，如何自定义对话框位置以使其显示在顶部操作栏下方？ （反正有没有改变重力或对话框的东西？）以及如何根据我的代码来做？？

android android-layout android-intent android-emulator android-widget
18个回答
286
投票

我用这段代码在屏幕底部显示对话框：

Dialog dlg = <code to create custom dialog>;

Window window = dlg.getWindow();
WindowManager.LayoutParams wlp = window.getAttributes();

wlp.gravity = Gravity.BOTTOM;
wlp.flags &= ~WindowManager.LayoutParams.FLAG_DIM_BEHIND;
window.setAttributes(wlp);

此代码还可以防止 android 在需要时使对话框的背景变暗。您应该能够更改重力参数以移动对话框

28
投票
private void showPictureialog() {
    final Dialog dialog = new Dialog(this,
            android.R.style.Theme_Translucent_NoTitleBar);

    // Setting dialogview
    Window window = dialog.getWindow();
    window.setGravity(Gravity.CENTER);

    window.setLayout(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT);
    dialog.setTitle(null);
    dialog.setContentView(R.layout.selectpic_dialog);
    dialog.setCancelable(true);

    dialog.show();
}

您可以根据重力和布局参数自定义对话框 根据您的要求更改重力和布局参数

26
投票

我从@gypsicoder代码这里

找到了这个代码片段 
    private CharSequence[] items = {"Set as Ringtone", "Set as Alarm"};
    AlertDialog.Builder builder = new AlertDialog.Builder(this);
    builder.setItems(items, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int item) {

            if(item == 0) {

            } else if(item == 1) {

            } else if(item == 2) {

            }
        }
    });
    
    AlertDialog dialog = builder.create();
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    WindowManager.LayoutParams wmlp = dialog.getWindow().getAttributes();
    
    wmlp.gravity = Gravity.TOP | Gravity.LEFT;
    wmlp.x = 100;   //x position
    wmlp.y = 100;   //y position
    
    dialog.show();

这里x位置的值是从左到右的像素。对于 y 位置 价值是从下到上。

15
投票

对我来说，这很有效，我试图将我的对话框定位在文本视图底部的某个位置，它被选中。

public void setPosition(int yValue) {
    Window window = getWindow();
    WindowManager.LayoutParams param = window.getAttributes();
    param.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;
    param.y = yValue;
    window.setAttributes(param);
    window.clearFlags(WindowManager.LayoutParams.FLAG_DIM_BEHIND);
}
15
投票

新

BottomSheetDialog
：

BottomSheetDialog dialog = new BottomSheetDialog(YourActivity.this);    
dialog.setContentView(YourView);

dialog.show();
9
投票

只需将此添加到您的代码中：

dialog.getWindow().setGravity(Gravity.BOTTOM);
3
投票

使用 bottomSHeet :

BottomSheetDialog dialog = new BottomSheetDialog(YourActivity.this);
dialog.setContentView(YourView);
dialog.show();
3
投票

您可以使用此代码段将 AlertDialog 放置在屏幕底部。

AlertDialog dialogPopup;

dialogPopup = mBuilder.create();
dialogPopup.getWindow().getAttributes().gravity = Gravity.BOTTOM;
3
投票

科特林：

val dialog = Dialog(context)
//set graviy bottom
dialog.window.setGravity(Gravity.BOTTOM)
3
投票

在kotlin中设置Dialog重力的最简单方法：

dialog.window?.setGravity(Gravity.TOP) // Set the gravity here

private fun searchDialog() {
    val dialog = Dialog(this)
    dialog.window?.setGravity(Gravity.TOP) // Set the gravity here
    val binding = DialogSearchHomeBinding.inflate(layoutInflater)
    dialog.setContentView(binding.root)
    dialog.show()
}
2
投票
dialog.getWindow().getAttributes().gravity = Gravity.BOTTOM;
2
投票

我用这个方法

 @Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    final Dialog dialog = new Dialog(getActivity());
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
    Window window = dialog.getWindow();
    WindowManager.LayoutParams wlp = window.getAttributes();
    wlp.gravity = Gravity.BOTTOM;
    dialog.setContentView(R.layout.dialog_droppoint);
    dialog.show();
    window.setAttributes(wlp);
    return dialog;

}
2
投票
public class MyDialogFragment extends DialogFragment{
    protected void setDialogGravity(int gravity) {
        Dialog dialog = getDialog();
        if (dialog != null) {
            Window window = dialog.getWindow();
            if (window != null) {
                WindowManager.LayoutParams params = window.getAttributes();
                params.width = WindowManager.LayoutParams.MATCH_PARENT;
                params.height = WindowManager.LayoutParams.MATCH_PARENT;
                params.horizontalMargin = 0;
                params.gravity = gravity;
                params.dimAmount = 0;
                params.flags &= ~WindowManager.LayoutParams.FLAG_DIM_BEHIND;
                window.setAttributes(params);
            }
        }
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        super.onCreateView(inflater,container,savedInstanceState);

        return inflater.inflate(R.layout.my_dialog, null);
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
                super.onViewCreated(view, savedInstanceState);
                setDialogGravity(Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL);
    }
}
2
投票

Java

AlertDialog.Builder builder = new AlertDialog.Builder(ConnectActivity.this);

AlertDialog alertDialog = builder.create();  
// set the gravity      
alertDialog.getWindow().setGravity(Gravity.TOP);
// set the margin 
alertDialog.getWindow().getAttributes().verticalMargin = 0.1F;
alertDialog.show();
1
投票

对于我的对话活动，我使用了这个：

WindowManager.LayoutParams lp = this.getWindow().getAttributes();
lp.gravity = Gravity.BOTTOM;
0
投票

我用自定义布局编写了自定义对话框。 它有一个

cancel
和一个
save
按钮，您还可以在设备屏幕（底部）上设置重力并定义对话框的宽度和高度。

private void showDialog(final String scanContent, final String currentTime, final String currentDate) { LayoutInflater linf = LayoutInflater.from(this); final View inflator = linf.inflate(R.layout.dialog_barcode_result_dialog, null);

final Dialog dialog = new Dialog(this, android.R.style.Theme_DeviceDefault_Light_Dialog);

// Setting dialogview
Window window = dialog.getWindow();
window.setGravity(Gravity.BOTTOM);

dialog.getWindow().setLayout(375, 350);

window.setLayout(WindowManager.LayoutParams.FILL_PARENT, WindowManager.LayoutParams.FILL_PARENT);
dialog.setTitle(null);
dialog.setContentView(R.layout.dialog_barcode_result_dialog);

dialog.setTitle(getResources().getString(R.string.dialog_title));
dialog.setContentView(inflator);

final Button save = inflator.findViewById(R.id.saveBtn);
final Button cancel = inflator.findViewById(R.id.cancelBtn);
final TextView message = inflator.findViewById(R.id.dialog_message_text);
message.setText(scanContent);
save.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        dialog.cancel();

    }
});
cancel.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        dialog.cancel();

    }
});

dialog.show();

}

对话框布局 xml 文件是：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:minWidth="350dp"
    android:layout_height="wrap_content"
    android:layout_marginTop="10dp">

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:padding="10dp"
            android:orientation="vertical">

            <TextView
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginTop="10dp"
                android:textSize="16sp"
                android:layout_marginBottom="10dp"
                android:id="@+id/dialog_message_text"
                />

            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:gravity="right"
                android:orientation="horizontal">

                <Button
                    android:id="@+id/cancelBtn"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/cancel" />

                <Button
                    android:id="@+id/saveBtn"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/button_save" />
            </LinearLayout>

        </LinearLayout>
    </ScrollView>
</LinearLayout>
0
投票

A.I.Shakil 建议的 Java 版 kotlin 代码：

 AlertDialog dialog = new AlertDialog.Builder(MainActivity.this)
            .setView(v)
            .setCancelable(false).create();
    dialog.getWindow().setGravity(Gravity.TOP);
    dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
    dialog.show();
0
投票

要在特定位置显示对话框，只需在 
onViewCreated
方法中添加此行。

dialog?.window?.attributes?.gravity = Gravity.BOTTOM

当然你可以使用任何重力值。

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