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<!-- 对话框主题 --> <style name="DialogTheme" parent="@android:style/Theme.Dialog"> <item name="android:windowBackground">@android:color/transparent</item> <item name="android:windowNoTitle">true</item> </style>
package com.wwj.custom.dialog; import android.app.Dialog; import android.content.Context; import android.content.res.Resources; import android.util.DisplayMetrics; import android.view.Gravity; import android.view.Window; import android.view.WindowManager; /** * 自己定义对话框 * * @author wwj * */ public class CustomDialog extends Dialog { private static int default_width = 160; // 默认宽度 private static int default_height = 120;// 默认高度 public CustomDialog(Context context) { super(context); } public CustomDialog(Context context, int layout, int style) { this(context, default_width, default_height, layout, style); } public CustomDialog(Context context, int width, int height, int layout, int style) { super(context, style); // 设置内容 setContentView(layout); // 设置窗体属性 Window window = getWindow(); WindowManager.LayoutParams params = window.getAttributes(); // 设置宽度、高度、密度、对齐方式 float density = getDensity(context); params.width = (int) (width * density); params.height = (int) (height * density); params.gravity = Gravity.CENTER; window.setAttributes(params); } /** * 获取显示密度 * * @param context * @return */ public float getDensity(Context context) { Resources res = context.getResources(); DisplayMetrics dm = res.getDisplayMetrics(); return dm.density; } }
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="@drawable/dialog_bg" android:gravity="center" android:orientation="vertical" > <ProgressBar style="@style/DialogTheme" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/message" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="5dp" android:text="正在运行..." /> </LinearLayout>
<?xml version="1.0" encoding="utf-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" > <corners android:radius="10dp" /> <solid android:color="#55000000" /> </shape>
package com.wwj.custom.dialog; import android.app.Activity; import android.os.Bundle; /** * 1.改动系统默认的Dialog样式(风格、主题) * * 2.自己定义Dialog布局文件 * * 3.能够自己封装一个类,继承自Dialog或者直接使用Dialog类来实现,为了方便以后反复使用,建议自己封装一个Dialog类 * * @author wwj * */ public class MainActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); CustomDialog customDialog = new CustomDialog(this, R.layout.dialog_layout, R.style.DialogTheme); customDialog.show(); } }
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原文地址:http://www.cnblogs.com/hrhguanli/p/4856088.html