自定义Dialog对话框

布局文件：

my_dlg.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="300dp"    android:layout_height="wrap_content"    ><TextView    android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="使用者姓名："    /><EditText android:id="@+id/edtUserName"    android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text=""    /><TextView    android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="密码："    /><EditText android:id="@+id/edtPassword"    android:layout_width="fill_parent"     android:layout_height="wrap_content"    android:inputType="textPassword"    android:text=""    /><LinearLayout    android:orientation="horizontal"    android:layout_width="fill_parent"    android:layout_height="wrap_content"    android:gravity="center"    ><Button android:id="@+id/btnOK"    android:layout_width="160dp"     android:layout_height="wrap_content"     android:text="确定登陆"    /><Button android:id="@+id/btnCancel"    android:layout_width="80dp"     android:layout_height="wrap_content"     android:text="取消"    /></LinearLayout></LinearLayout>

　　main.xml:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><LinearLayout    android:orientation="vertical"    android:layout_width="0dp"    android:layout_height="fill_parent"    android:layout_weight="1"    /><LinearLayout    android:orientation="vertical"    android:layout_width="0dp"    android:layout_height="fill_parent"    android:layout_weight="1"    ><Button android:id="@+id/btnLoginDlg"   android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:text="登入系統"    /><TextView android:id="@+id/txtResult"    android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text=""/></LinearLayout><LinearLayout    android:orientation="vertical"    android:layout_width="0dp"    android:layout_height="fill_parent"    android:layout_weight="1"    /></LinearLayout>

package tw.android;import android.app.Activity;import android.app.Dialog;import android.os.Bundle;import android.view.View;import android.widget.*;public class Main extends Activity {private Button mBtnLoginDlg;private TextView mTxtResult;private Dialog mLoginDlg;/** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        setupViewComponent();    }        private void setupViewComponent() {mBtnLoginDlg = (Button)findViewById(R.id.btnLoginDlg);mTxtResult = (TextView)findViewById(R.id.txtResult);mBtnLoginDlg.setOnClickListener(btnLoginDlgOnClkLis);    }    private Button.OnClickListener btnLoginDlgOnClkLis = new Button.OnClickListener() {public void onClick(View v) {mTxtResult.setText("");mLoginDlg = new Dialog(Main.this);//建立的Dialog对象必须制定它的拥有者。mLoginDlg.setTitle("登陆系统");mLoginDlg.setCancelable(false);//设置Cancelable属性，让用户无法使用“回上一页”按钮离开对话框mLoginDlg.setContentView(R.layout.login_dlg);Button loginBtnOK = (Button)mLoginDlg.findViewById(R.id.btnOK);Button loginBtnCancel = (Button)mLoginDlg.findViewById(R.id.btnCancel);loginBtnOK.setOnClickListener(loginDlgBtnOKOnClkLis);loginBtnCancel.setOnClickListener(loginDlgBtnCancelOnClkLis);mLoginDlg.show();}};    private Button.OnClickListener loginDlgBtnOKOnClkLis = new Button.OnClickListener() {public void onClick(View v) {EditText edtUserName = (EditText)mLoginDlg.findViewById(R.id.edtUserName);EditText edtPassword = (EditText)mLoginDlg.findViewById(R.id.edtPassword);mTxtResult.setText("请你输入的使用者姓名：" + edtUserName.getText().toString() +"密码：" + edtPassword.getText().toString());mLoginDlg.cancel();}};    private Button.OnClickListener loginDlgBtnCancelOnClkLis = new Button.OnClickListener() {public void onClick(View v) {mTxtResult.setText("你按下\"取消\"按钮。");mLoginDlg.cancel();}};}

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