要用 AlertDialog , 导包: import android.support.v7.app.AlertDialog;
https://blog.csdn.net/xiaoyu_93/article/details/52982657
new AlertDialog.Builder(this) .setTitle("标题") .setMessage("内容") .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }) .setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }) .create().show();
package com.example.alertdialog; import android.app.ActionBar.LayoutParams; import android.app.Activity; import android.app.AlertDialog; import android.app.Dialog; import android.content.DialogInterface; import android.os.Bundle; import android.view.Display; import android.view.Menu; import android.view.View; import android.view.WindowManager; import android.view.View.OnClickListener; import android.view.Window; import android.widget.Button; import android.widget.EditText; import android.widget.ImageView; import android.widget.TextView; public class MainActivity extends Activity { private TextView text_01; private Button but_01; private Button but_02; private Button but_03; private Button but_04; private Button but_05; private Button but_06; private Button but_07; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initListener(); } /** * 初始化控件 */ private void initView(){ text_01 = (TextView) findViewById(R.id.text_01); but_01 = (Button) findViewById(R.id.but_01); but_02 = (Button) findViewById(R.id.but_02); but_03 = (Button) findViewById(R.id.but_03); but_04 = (Button) findViewById(R.id.but_04); but_05 = (Button) findViewById(R.id.but_05); but_06 = (Button) findViewById(R.id.but_06); but_07 = (Button) findViewById(R.id.but_07); } /** * 初始化监听 */ private void initListener(){ but_01.setOnClickListener(ock); but_02.setOnClickListener(ock); but_03.setOnClickListener(ock); but_04.setOnClickListener(ock); but_05.setOnClickListener(ock); but_06.setOnClickListener(ock); but_07.setOnClickListener(ock); } // 监听 private OnClickListener ock = new OnClickListener() { public void onClick(View v) { switch (v.getId()) { case R.id.but_01: showExitDialog01(); break; case R.id.but_02: showExitDialog02(); break; case R.id.but_03: showExitDialog03(); break; case R.id.but_04: showExitDialog04(); break; case R.id.but_05: showExitDialog05(); break; case R.id.but_06: showExitDialog06(); break; case R.id.but_07: showExitDialog07(); break; default: break; } } }; // 简单消息提示框 private void showExitDialog01(){ new AlertDialog.Builder(this) .setTitle("标题") .setMessage("简单的消息提示框") .setPositiveButton("确定", null) .show(); } // 带“是”和“否”的提示框 private void showExitDialog02(){ new AlertDialog.Builder(this) .setTitle("带确定键的提示框") .setMessage("确定吗") .setPositiveButton("是", null) .setNegativeButton("否", null) .show(); } // 可输入文本的提示框 private void showExitDialog03(){ final EditText edt = new EditText(this); // 设置输入框的大小 edt.setMinLines(3); new AlertDialog.Builder(this) .setTitle("请输入") .setIcon(android.R.drawable.ic_dialog_info) .setView(edt) .setPositiveButton("确定", new DialogInterface.OnClickListener() { // 把输入的文字传递给text public void onClick(DialogInterface arg0, int arg1) { text_01.setText(edt.getText().toString()); } }) .setNegativeButton("取消", null) .show(); } // 单选提示框 private void showExitDialog04(){ new AlertDialog.Builder(this) .setTitle("请选择") .setIcon(android.R.drawable.ic_dialog_info) .setSingleChoiceItems(new String[]{"选项1","选项2","选项3","选项4","选项5","选项6"}, -1, new DialogInterface.OnClickListener(){ public void onClick(DialogInterface arg0, int arg1) { switch (arg1) { case 0:text_01.setText("选择了一");break; case 1:text_01.setText("选择了二");break; case 2:text_01.setText("选择了三");break; default: break; } arg0.dismiss(); } }) .setNegativeButton("取消", null) .show(); } // 多选提示框 private void showExitDialog05(){ new AlertDialog.Builder(this) .setTitle("多选框") .setMultiChoiceItems(new String[]{"选项1","选项2","选项3","选项4","选项5","选项6"}, null, null) .setPositiveButton("确定",null) .setNegativeButton("取消",null) .show(); } // 列表对话框 private void showExitDialog06(){ new AlertDialog.Builder(this) .setTitle("列表框") .setItems(new String[]{"列表1","列表2","列表3","列表4","列表5"}, null) .setNegativeButton("确定", null) .show(); } // 显示图片的对话框 private void showExitDialog07(){ ImageView img = new ImageView(this); img.setImageResource(R.drawable.hua); new AlertDialog.Builder(this) .setTitle("图片框") .setView(img) .setPositiveButton("确定", null) .show(); } }
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" android:padding="20dp" > <TextView android:id="@+id/text_01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:text="各种消息框的用法" /> <Button android:id="@+id/but_01" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="简单消息提示框" /> <Button android:id="@+id/but_02" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="带了确认和取消按钮" /> <Button android:id="@+id/but_03" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="可以输入文本" /> <Button android:id="@+id/but_04" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="单选框" /> <Button android:id="@+id/but_05" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="多选框" /> <Button android:id="@+id/but_06" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="列表显示框" /> <Button android:id="@+id/but_07" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="图片显示框" /> </LinearLayout>