Android基础篇-自定义Dialog(二)

很多情况下，我们需要自定义一些Dialog效果。

首先继承系统的Dialog

/**
 * @author gongchaobin
 *
 * 自定义Dialog样式
 */
public class SelfDialog extends Dialog implements android.view.View.OnClickListener{
    private Context mContext;
    private Button mBtnCha;
    private Button mBtnUse;
    private ActivityManagerCommon managerCommon;
    
    public SelfDialog(Context context) {
        super(context);
        // TODO Auto-generated constructor stub
        mContext = context;
    }

    public SelfDialog(Context context, boolean cancelable,
            OnCancelListener cancelListener) {
        super(context, cancelable, cancelListener);
        // TODO Auto-generated constructor stub
    }

    public SelfDialog(Context context, int theme) {
        super(context, theme);
        // TODO Auto-generated constructor stub
        mContext = context;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        setContentView(R.layout.dialog);
        
        managerCommon = ActivityManagerCommon.getScreenManager();
        mBtnCha = (Button) findViewById(R.id.dialog_cha_close);
        mBtnUse = (Button) findViewById(R.id.dialog_use);
        
        mBtnCha.setOnClickListener(this);
        mBtnUse.setOnClickListener(this);
    }

    public void onClick(View v) {
        // TODO Auto-generated method stub
        switch (v.getId()) {
        case R.id.dialog_cha_close:
            dismiss();
            break;
        case R.id.dialog_use://跳转到指引界面
            dismiss();
            Intent intent = new Intent(mContext,GuideActivity.class);
            mContext.startActivity(intent);
            break;
        default:
            break;
        }
    }
    
}

dialog.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="496dp"
    android:layout_height="334dp"
    android:background="@drawable/lst_about_bg"
    android:orientation="vertical" >
    
    <Button 
        android:layout_marginLeft="424dp"
        android:layout_marginTop="20dp"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:background="@drawable/cha_bg_selector"
        android:id="@+id/dialog_cha_close"/>
    
    <Button 
        android:layout_width="162dp"
        android:layout_height="46dp"
        android:id="@+id/dialog_use"
        android:background="@drawable/use_bg_selector"
        android:layout_marginLeft="166dp"
        android:layout_marginTop="106dp"
        />
    
</LinearLayout>

同时定义Dialog的一个显示style：

    <style name="MyDialog" parent="@android:Theme.Dialog">
        <item name="android:windowFrame">@null</item>
        <item name="android:windowNoTitle">true</item> 
        <item name="android:windowBackground">@drawable/lst_about_bg</item>
        <item name="android:windowIsFloating">true</item>
        <item name="android:windowContentOverlay">@null</item>
    </style>