Dialog

• AlertDialog
  • 创建一个只有进度条的对话框
  • 修改按钮的文字颜色
  • 显示富文本

AlertDialog

创建一个只有进度条的对话框

xxx.java

AlertDialog.Builder builder = new AlertDialog.Builder(context)
        .setView(R.layout.window_loading)
        .setCancelable(false); // 对话框外点击无法退出
dialog = builder.create();
Window window = dialog.getWindow();
if (window != null) {
    // 设置背景透明
    window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
}
dialog.show();

layout/window_loading.xml

<?xml version="1.0" encoding="utf-8"?>
<ProgressBar xmlns:android="http://schemas.android.com/apk/res/android"
    style="?android:attr/progressBarStyleLarge"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:indeterminate="true" />

修改按钮的文字颜色

values/styles.xml

<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
    <!-- ... -->
    <item name="buttonBarPositiveButtonStyle">@style/positiveButtonStyle</item>
    <item name="buttonBarNegativeButtonStyle">@style/negativeButtonStyle</item>
</style>

<style name="positiveButtonStyle" parent="Base.Widget.AppCompat.Button.ButtonBar.AlertDialog">
    <item name="android:textColor">@color/zkhRed</item>
</style>

<style name="negativeButtonStyle" parent="Base.Widget.AppCompat.Button.ButtonBar.AlertDialog">
    <item name="android:textColor">@color/textNormal</item>
</style>

参考：Android-用style修改AlertDialog修改按钮文字颜色

显示富文本

values/strings.xml

<string name="test_string"><![CDATA[中间是<font color=\'#ff0000\'>红字</font>哈]]></string>

xx.java

new AlertDialog.Builder()
    .setMessage(Html.fromHtml(getString(R.string.test_string)))
    ...