android自定义弹出层

最新推荐文章于 2024-08-31 12:04:03 发布

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本文展示了一个Android应用中自定义对话框的实现方法。通过创建`DialogShow`类继承`Activity`，并在其中设置按钮点击事件触发对话框显示。对话框通过`Tip`类定制样式，使用了自定义布局和透明背景。

1. [代码]DialogShow.java 跳至 [1] [2] [3] [4] [全屏预览]

 
    01package  com.asfman; 
 
    02  
 
    03import  android.app.Activity; 
 
    04import  android.os.Bundle; 
 
    05import  android.view.View; 
 
    06import  android.widget.Button; 
 
    07  
 
    08public  class DialogShow extends Activity { 
 
    09  
 
    10    /** Called when the activity is first created. */
 
    11    @Override
 
    12    public void onCreate(Bundle savedInstanceState) { 
 
    13        super.onCreate(savedInstanceState); 
 
    14        setContentView(R.layout.main); 
 
    15        Button btn = (Button) findViewById(R.id.button1); 
 
    16        btn.setOnClickListener(new Button.OnClickListener() { 
 
    17  
 
    18            @Override
 
    19            public void onClick(View v) { 
 
    20                // TODO Auto-generated method stub 
 
    21                new Tip(DialogShow.this).show(); 
 
    22            } 
 
    23  
 
    24        }); 
 
    25    }  
 
    26}

2. [代码]Tip.java 跳至 [1] [2] [3] [4] [全屏预览]

 
    01package  com.asfman; 
 
    02  
 
    03import  android.app.Dialog; 
 
    04import  android.content.Context; 
 
    05import  android.view.Gravity; 
 
    06import  android.view.View; 
 
    07import  android.view.ViewGroup; 
 
    08import  android.view.Window; 
 
    09import  android.view.WindowManager; 
 
    10import  android.widget.ImageView; 
 
    11  
 
    12public  class Tip { 
 
    13  
 
    14    private ImageView image; 
 
    15    private Dialog mDialog; 
 
    16  
 
    17    public Tip(Context context) { 
 
    18        mDialog = new Dialog(context, R.style.dialog); 
 
    19        Window window = mDialog.getWindow(); 
 
    20        WindowManager.LayoutParams wl = window.getAttributes(); 
 
    21        wl.x = -30; 
 
    22        wl.y = 20; 
 
    23        window.setAttributes(wl); 
 
    24        window.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
 
    25                WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN); 
 
    26        //window.setGravity(Gravity.CENTER); 
 
    27        window.setLayout(ViewGroup.LayoutParams.FILL_PARENT, 
 
    28                ViewGroup.LayoutParams.WRAP_CONTENT); 
 
    29        mDialog.setContentView(R.layout.tip); 
 
    30        mDialog.setFeatureDrawableAlpha(Window.FEATURE_OPTIONS_PANEL, 0); 
 
    31        image = (ImageView) mDialog.findViewById(R.id.image); 
 
    32        image.setOnClickListener(new ImageView.OnClickListener() { 
 
    33            @Override
 
    34            public void onClick(View arg0) { 
 
    35                mDialog.dismiss(); 
 
    36            } 
 
    37        }); 
 
    38    }  
 
    39  
 
    40    public void show() { 
 
    41        mDialog.show(); 
 
    42    }  
 
    43  
 
    44}

3. [代码]dialog.xml 跳至 [1] [2] [3] [4] [全屏预览]

 
    01<?xml version="1.0" encoding="utf-8"?> 
 
    02<resources> 
 
    03    <style name="dialog" parent="@android:style/Theme.Dialog"> 
 
    04<!--         <item name="android:windowFrame">@null</item> -->
 
    05<!--         <item name="android:windowIsFloating">true</item> -->
 
    06<!--         <item name="android:windowIsTranslucent">false</item> -->
 
    07        <item name="android:windowNoTitle">true</item> 
 
    08        <item name="android:windowBackground">@null</item> 
 
    09<!--         <item name="android:backgroundDimEnabled">false</item> -->
 
    10    </style> 
 
    11</resources>

4. [代码]tip.xml 跳至 [1] [2] [3] [4] [全屏预览]

 
    01<?xml version="1.0" encoding="utf-8"?> 
 
    02<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 
    03    android:layout_width="300dp" android:layout_height="190dp"
 
    04    android:orientation="vertical" android:background="@drawable/blueinfowindow"> 
 
    05    <LinearLayout android:layout_width="fill_parent"
 
    06        android:layout_height="wrap_content" android:orientation="horizontal"
 
    07        android:id="@+id/upContent" android:layout_marginTop="30dp"
 
    08        android:layout_marginLeft="30dp"> 
 
    09        <TextView android:id="@+id/description" android:layout_width="220dp"
 
    10            android:layout_height="wrap_content"
 
    11            android:text="1.this is the test text!\n 
 
    12            1.this is the test text!\n1.this is the test text!\n1.this is the test text!\n" android:textColor="#000000" /> 
 
    13        <ImageView android:id="@+id/image" android:background="@drawable/icon" android:layout_width="wrap_content" android:layout_height="wrap_content"/>     
 
    14    </LinearLayout> 
 
    15</LinearLayout>