小程序 普通对话框源码.rar

package com.mycommondialog.activity; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; public class CommonDialogActivity extends Activity { final int COMMON_DIALOG = 1; private Dialog dialog = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.common_dialog_layout); Button button = (Button) findViewById(R.id.button); View.OnClickListener listener = new View.OnClickListener() { @Override public void onClick(View view) { showDialog(COMMON_DIALOG); } }; button.setOnClickListener(listener); } /* * 使用onCreateDialog(int)来管理对话框的状态, 那么每次对话框被解除时, 该对话框对象的状态会被Activity保存. 调用 * removeDialog(int)将所有该对象的内部引用移除 如本程序那样,如果不加removeDialog，那么显示的是第一次的内容 */ @Override protected Dialog onCreateDialog(int id) { EditText editText = (EditText) findViewById(R.id.editText); switch (id) { case COMMON_DIALOG: Builder builder = new AlertDialog.Builder(this); builder.setIcon(R.drawable.dialog); builder.setTitle(R.string.button); builder.setMessage(editText.getText()); DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { // 将此处移除后，无论怎么修改EditText内容 // 每次点击显示普通对话框，总是第一次的内容 // 如果想更新EditText内容就得加removeDialog removeDialog(COMMON_DIALOG); } }; builder.setPositiveButton(R.string.ok, listener); dialog = builder.create(); break; default: break; } Log.e("onCreateDialog", "onCreateDialog"); return dialog; } }