Question

我正在开发一个应用程序，我使用材质设计对话框向用户显示一些信息，我想要的是在对话框中使文本样式的一部分变为粗体。如何实现这个问题。

这是我对话框的图片： - enter image description here

这里我想要这个手机号码文字样式粗体和颜色

这是我的代码： -

AlertDialog.Builder builder = new AlertDialog.Builder(CRegistrationScreen.this);
            builder.setCancelable(false);
            builder.setMessage("We will send you a verification SMS to this Number.\n\n"+s_szResponseMobileNum+"\n\nIs this OK,or would you like to edit the number.");
            builder.setPositiveButton(R.string.ok, null);
            builder.setNegativeButton(R.string.edit,null);
            builder.show();

Answer 1

对于特定样式文字，我们希望将文字转换为 HTML 并使用 HTML TAG 进行样式设置

尝试这可能是有效的....................

 String sourceString = "We will send you a verification SMS to this Number.<br><br> <b><font color='#08b608'>" + s_szResponseMobileNum + "</b> <br><br>Is this OK,or would you like to edit the number." ; 
builder.setMessage(Html.fromHtml(sourceString));

输出： -

享受编码.....................

Answer 2

你基本上可以在字符串资源中使用html标签，如：

<resource>
  <string id="@+id/no">We will send you a verification SMS to this Number <b>your mobile no</b>this OK,or would you like to edit the number</string>
</resources>

Answer 3

我正在给你一步一步指南

第1步

在gradle文件中添加支持lib

dependencies {  
    compile 'com.android.support:appcompat-v7:X.X.X' // where X.X.X version
}

第2步

让您的活动延长android.support.v7.app.AppCompatActivity.

   public class MainActivity extends AppCompatActivity {  
        ...
    }

第3步创建警告对话框

private void showLocationDialog() {  
    AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
    builder.setTitle(getString(R.string.dialog_title));   
 builder.setMessage(Html.fromHtml(""+"<b>"+R.string.dialog_message+"</b>"));

String positiveText = getString(android.R.string.ok);
    builder.setPositiveButton(positiveText,
            new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            // positive button logic
        }
    });

    String negativeText = getString(android.R.string.cancel);
    builder.setNegativeButton(negativeText,
            new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            // negative button logic
        }
    });

    AlertDialog dialog = builder.create();
    // display dialog
    dialog.show();
}

第4步

为对话框背景声明自定义 drawable.xml 。

<?xml version="1.0" encoding="utf-8"?>  
<!-- From: support/v7/appcompat/res/drawable/abc_dialog_material_background_light.xml -->  
<inset xmlns:android="http://schemas.android.com/apk/res/android"  
    android:insetLeft="16dp"
    android:insetTop="16dp"
    android:insetRight="16dp"
    android:insetBottom="16dp">

    <shape android:shape="rectangle">
        <corners android:radius="2dp" />
        <solid android:color="@color/indigo" />
    </shape>

</inset>

在 style.xml 文件

中声明样式

<style name="MyDialogTheme" parent="Theme.AppCompat.Light.Dialog.Alert">  
    <!--buttons color-->
    <item name="colorAccent">@color/pink</item>
    <!--title and message color-->
    <item name="android:textColorPrimary">@android:color/white</item>
    <!--dialog background-->
    <item name="android:windowBackground">@drawable/background_dialog</item>
</style>

第5步 最后一步

创建对话框并使用样式作为AlertDialog.Builder中的参数。

AlertDialog.Builder builder =  
        new AlertDialog.Builder(this, R.style.MyDialogTheme);
...
AlertDialog dialog = builder.create();  
// display dialog
dialog.show();

Answer 4

您可以通过以下代码解决您的查询，这将帮助您以粗体显示特定颜色的数字。

您可以使用Spannable类，尝试以下代码。

        String strMessage = “We will send you a verification SMS to this Number.\n\n” + s_szResponseMobileNum + "\n\nIs this OK,or would you like to edit the number."

        Spannable wordtoSpan = new SpannableString(strMessage);        

        wordtoSpan.setSpan(new ForegroundColorSpan(Color.BLUE), strMessage.indexOf(s_szResponseMobileNum), s_szResponseMobileNum.length, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        wordtoSpan.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), strMessage.indexOf(s_szResponseMobileNum), s_szResponseMobileNum.length, 0);

        AlertDialog.Builder builder = new AlertDialog.Builder(CRegistrationScreen.this);
        builder.setCancelable(false);
        builder.setMessage(wordtoSpan);
        builder.setPositiveButton(R.string.ok, null);
        builder.setNegativeButton(R.string.edit,null);
        builder.show();

希望这会奏效。

Answer 5

您可以使用StyleSpan将文字的特定部分设为粗体。

SpannableStringBuilder ssb = new SpannableStringBuilder();
ssb.append("We will send you a verification SMS to this Number:\n\n");
int start = ssb.length();
ssb.append(phoneNumber);
ssb.append("\n\nIs this OK, or would you like to edit the number?");
ssb.setSpan(new StyleSpan(Typeface.BOLD), start, phoneNumber.length(), 
        Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

AlertDialog.Builder builder = new AlertDialog.Builder(CRegistrationScreen.this);
builder.setCancelable(false)
        .setMessage(ssb)
        .setPositiveButton(R.string.ok, null)
        .setNegativeButton(R.string.edit, null)
        .show();

如何在字符串

5 个答案: