43

在此处输入图像描述

我想显示具有透明背景的警报对话框。我的警报对话框代码是：

AlertDialog.Builder imageDialog = new AlertDialog.Builder(SubProducts.this);
LayoutInflater inflater = (LayoutInflater)SubProducts.this.getSystemService(LAYOUT_INFLATER_SERVICE);

View layout = inflater.inflate(R.layout.cust_toast_layout,(ViewGroup)findViewById(R.id.linearLayout2));

ImageView image = (ImageView)layout.findViewById(R.id.imageView1);
image.setPadding(0, 20, 0, 0);
imgLoader.DisplayImage(image_url, loader, image);


TextView tprice=(TextView)layout.findViewById(R.id.pricetext);
tprice.setText("$ "+pricedouble);

TextView tvdprh=(TextView)layout.findViewById(R.id.textView1);

tvdprh.setText(prohd);




WebView wv=(WebView)layout.findViewById(R.id.webview);



Spanned sub=Html.fromHtml(descp);
String s = "<html><head><style type='text/css' >@font-face {font-family:'myfont';src: url('file:///android_asset/fonts/ABeeZee-Regular.ttf');}body {margin:0px;color:000000;font-family: myfont;"
        + "text-align: justify;}</style></head><body>"
        + sub
        + "</body></html>";

wv.loadDataWithBaseURL("", s, "text/html", "utf-8", null);
wv.setVerticalScrollBarEnabled(true);
wv.setBackgroundColor(Color.TRANSPARENT);
wv.setPadding(5, 25, 5, 0);


ImageView imgcartl=(ImageView)layout.findViewById(R.id.imageView2);
imgcartl.setBackgroundResource(R.drawable.cartlines);

ImageView brobutton=(ImageView)layout.findViewById(R.id.imageView3);
brobutton.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {



        Intent intentlabl = new Intent(getBaseContext(), Label.class);
Bundle b=new Bundle();
b.putString("url", image_urlpdf);
b.putBoolean("isDialog", true);
intentlabl.putExtras(b);
startActivity(intentlabl);

}
        });

ImageView shobutton=(ImageView)layout.findViewById(R.id.imageView4);

shobutton.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
        // TODO Auto-generated method stub
//intent code
        }
        });

ImageView addbutton=(ImageView)layout.findViewById(R.id.imageView5);
addbutton.setBackgroundResource(R.drawable.addicon);
addbutton.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
        // TODO Auto-generated method stub

        passingid.add(prodid);

Product prodobj=new Product();
prodobj.setId(passingid);


new LongRunningGetIO4().execute(pricedouble, prodid);
}
        });


imageDialog.setView(layout);


imageDialog.create();
imageDialog.show();

我的背景图像包含圆角。但不幸的是，pop 出现在矩形白色背景上。任何身体请给我建议。提前谢谢。

4

8 回答 8

90

定义文件后面的styles.xml内容

<style name="CustomDialog" parent="android:Theme.Dialog">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowBackground">@android:color/transparent</item>
</style>

并将其作为参数传递给AlertDialog构造函数

AlertDialog.Builder imageDialog = new AlertDialog.Builder(SubProducts.this, R.style.CustomDialog);

或者以编程方式，通过Dialog您可以调用的实例

myDialog.getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT))
于 2013-04-24T08:24:31.350 回答
43

另一种解决方案：

使用时Alertdialog.builder- 它没有提供getwindow()选项。所以我们可以让它像这样工作：

AlertDialog dialog = builderScan.create();
            dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
            dialog.show();

并且您的背景AlertDialog将是透明的。

于 2014-11-25T09:53:28.453 回答
9

而不是这个：

imageDialog.create();
imageDialog.show();

你可以尝试做这样的事情：

AlertDialog imageDialogAlert = imageDialog.create();
imageDialogAlert.show();
imageDialogAlert.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
于 2013-04-24T08:19:05.783 回答
3

叫这个，

customDialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));

就在之前

customDialog.show();
于 2014-12-01T14:31:48.467 回答
3

如果您只想从对话框布局中删除白色背景，则只需添加：

dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);

如果您还想删除对话框的窗口背景半透明颜色，则需要添加两行：

dialog.getWindow().setDimAmount(0f);    
dialog.getWindow().setBackgroundDrawableResource(android.R.color.transparent);
于 2020-03-26T12:39:40.437 回答
1 
protected AlertDialog(Context context) {
    this(context, com.android.internal.R.style.Theme_Translucent_NoTitleBar_Fullscreen);
}

public Builder(Context context) {
    this(context, com.android.internal.R.style.Theme_Translucent_NoTitleBar_Fullscreen);
}
于 2013-04-24T08:26:09.953 回答
1

下面的代码更改了背景布局。

LayoutInflater inflater = MainActivity.this.getLayoutInflater();

View layout = inflater.inflate(R.layout.your_layout, null);

final AlertDialog alertDio = new AlertDialog.Builder(MainActivity.this)
                        .setView(layout)
                        .show();

alertDio.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.parseColor("#801b5e20")));
于 2016-05-07T23:31:12.153 回答
1 
val dialog: AlertDialog = builder.create()
      dialog.window!!.setBackgroundDrawable(ColorDrawable(Color.TRANSPARENT))
        dialog.setView(view)
        dialog.show()```
于 2020-12-23T14:48:50.470 回答