自定义Dialog

来源：互联网发布：apache垃圾回收机制编辑：程序博客网时间：2024/05/27 19:25

先看效果图：
这里写图片描述

1.新建一个类，并extends Dialog。

public class MyDialog extends Dialog implements android.view.View.OnClickListener{    private Context context;    private String hintTitle,hintDescription;//dialog对话框文字内容    private TextView tv_ok,tv_cancel,tv_hint,tv_hintDescription;    public MyDialog(Context context,String hintTitle,String hintDescription) {        super(context,R.style.MyDialog);        // TODO Auto-generated constructor stub        this.hintTitle=hintTitle;//从activity传递过来        this.hintDescription=hintDescription;//从activity传递过来    }    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.dialog_hint);//对话框布局         initViews();    }    private void initViews(){        tv_ok=(TextView)findViewById(R.id.ok);        tv_ok.setOnClickListener(this);        tv_cancel=(TextView)findViewById(R.id.cancel);        tv_cancel.setOnClickListener(this);        tv_hint=(TextView)findViewById(R.id.hint);        tv_hintDescription=(TextView)findViewById(R.id.hint_description);        tv_hint.setText(hintTitle);        tv_hintDescription.setText(hintDescription);        setCanceledOnTouchOutside(false);//点击外部对话框不消失    }    @Override    public void onClick(View v) {        // TODO Auto-generated method stub    switch (v.getId()) {        case R.id.ok:            dismiss();            break;        case R.id.cancel:            dismiss();            break;        default:            break;        }    }}

2.写dialog布局dialog_hint.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:background="@drawable/round_white_shape"//为了美观这里写了圆角背景    android:orientation="vertical" >    <TextView        android:id="@+id/hint"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="20dp"        android:gravity="center"        android:padding="6dp"        android:shadowRadius="1.5"        android:text="错误提示"        android:textColor="#000000"        android:textSize="20sp" />    <TextView        android:id="@+id/hint_description"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginBottom="20dp"        android:layout_marginTop="10dp"        android:gravity="center"        android:padding="6dp"        android:text="用户名或密码不正确,请重新再试"        android:textColor="#666666"        android:textSize="18sp" />    <TextView        android:layout_width="match_parent"        android:layout_height="0.5dp"        android:background="#DFDFDF" />    <LinearLayout        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:orientation="horizontal" >        <TextView            android:id="@+id/ok"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_marginBottom="15dp"            android:layout_marginTop="15dp"            android:layout_weight="1"            android:gravity="center"            android:text="确定"            android:textColor="#0dbfc6"            android:textSize="20sp" />        <View            android:layout_width="0.5dp"            android:layout_height="match_parent"            android:layout_marginBottom="15dp"            android:layout_marginTop="15dp"            android:background="#DFDFDF" />        <TextView            android:id="@+id/cancel"            android:layout_width="0dp"            android:layout_height="wrap_content"            android:layout_marginBottom="15dp"            android:layout_marginTop="15dp"            android:layout_weight="1"            android:gravity="center"            android:text="取消"            android:textColor="#0dbfc6"            android:textSize="20sp" />    </LinearLayout></LinearLayout>

3.将dialog实例化

public class MainActivity extends Activity implements OnClickListener{    private TextView tv_dialog;    private MyDialog dialog;    @Override    protected void onCreate(Bundle savedInstanceState) {        // TODO Auto-generated method stub        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        tv_dialog=(TextView)findViewById(R.id.tv);        tv_dialog.setOnClickListener(this);    }    @Override    public void onClick(View v) {        // TODO Auto-generated method stub        switch (v.getId()) {        case R.id.tv:            dialog=new MyDialog(this, "猜我是谁", "我就是自定义对话框");            dialog.show();            setDialogWindow(dialog);//设置对话框大小和位置            break;        default:            break;        }    }    public void setDialogWindow(Dialog dialog) {        Window window = dialog.getWindow();        WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);        int width = wm.getDefaultDisplay().getWidth();        int height = wm.getDefaultDisplay().getHeight();        WindowManager.LayoutParams lp = window.getAttributes();        lp.width = width / 5 * 4;        lp.height = height / 5 * 2;        window.setAttributes(lp);    }}

PS:自定义对话框的布局可以是各种，比如列表，进度条等等，根据需求改变。
demo下载地址：
http://download.csdn.net/detail/kinglong68/9471716

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