Android AlertDialog对话框使用（各种样式）
先上几张效果图
这是XML文件中的控件，只是使用了按钮点击来触发
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".Main3Activity">
<Button
android:id="@+id/btn_open_one"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="常见的模式" />
<Button
android:id="@+id/btn_open_two"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="列表对话框" />
<Button
android:id="@+id/btn_open_three"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="单选对话框" />
<Button
android:id="@+id/btn_open_four"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="多选对话框" />
<Button
android:id="@+id/btn_open_five"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:text="自定义的" />
</LinearLayout>
这是Activity中的代码
public class Main3Activity extends AppCompatActivity implements View.OnClickListener {
private String[] citys = new String[]{"北京", "上海", "深圳", "香港"};
private AlertDialog d;
private AlertDialog dialog;
private Button btn_open_one;
private Button btn_open_two;
private Button btn_open_three;
private Button btn_open_four;
private Button btn_open_five;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main3);
initView();
}
private void initView() {
btn_open_one = (Button) findViewById(R.id.btn_open_one);
btn_open_two = (Button) findViewById(R.id.btn_open_two);
btn_open_three = (Button) findViewById(R.id.btn_open_three);
btn_open_four = (Button) findViewById(R.id.btn_open_four);
btn_open_five = (Button) findViewById(R.id.btn_open_five);
btn_open_one.setOnClickListener(this);
btn_open_two.setOnClickListener(this);
btn_open_three.setOnClickListener(this);
btn_open_four.setOnClickListener(this);
btn_open_five.setOnClickListener(this);
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.btn_open_one:
//常见的模式
opendialog();
break;
case R.id.btn_open_two:
//列表对话框
openlistdialog();
break;
case R.id.btn_open_three:
//单选对话框
opensingledialog();
break;
case R.id.btn_open_four:
//多选对话框
muldialog();
break;
case R.id.btn_open_five:
//自定义的
customDialog();
break;
}
}
//常见的
public void opendialog() {
// 1.创建builder对象
AlertDialog.Builder builder = new AlertDialog.Builder(Main3Activity.this);
//设置标题
builder.setTitle("my first dialog");
builder.setIcon(R.mipmap.ic_launcher);//设置标题图片
//设置内容
builder.setMessage("确定删除吗？");
//设置按钮 Positive 积极的 正确面
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(Main3Activity.this, "ok", Toast.LENGTH_SHORT).show();
}
});
//Negative 消极的
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(Main3Activity.this, "cancel", Toast.LENGTH_SHORT).show();
}
});
//Neutral 一般的
builder.setNeutralButton("一般", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(Main3Activity.this, "一般", Toast.LENGTH_SHORT).show();
}
});
//2.调用 builder的create
AlertDialog dialog = builder.create();
//3.显示
dialog.show();
}
//列表对话框
public void openlistdialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("请选择城市：");
builder.setItems(citys, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(Main3Activity.this, "当前条目：" + arg1, Toast.LENGTH_SHORT).show();
}
});
//创建，显示
AlertDialog d = builder.create();
d.show();
}
//单选对话框
public void opensingledialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("请选择城市：");
//设置单选 第二个参数是 默认选中项的下标
builder.setSingleChoiceItems(citys, 0, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1) {
// TODO Auto-generated method stub
Toast.makeText(Main3Activity.this, "当前条目：" + arg1, Toast.LENGTH_SHORT).show();
//d.dismiss();//关闭对话框
}
});
//创建显示
d = builder.create();
d.show();
}
//多选对话框
public void muldialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("请选择城市：");
//设置多选
builder.setMultiChoiceItems(citys, new boolean[]{true, true, true, true}, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface arg0, int arg1, boolean arg2) {
// TODO Auto-generated method stub
}
});
//创建，显示
d = builder.create();
d.show();
}
//自定义的
public void customDialog() {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
//加载布局
View contentView = View.inflate(this, R.layout.dialog, null);
//查找控件
final EditText etName = (EditText) contentView.findViewById(R.id.et_name);
final EditText etPwd = (EditText) contentView.findViewById(R.id.et_pwd);
Button btnOk = (Button) contentView.findViewById(R.id.btn_ok);
Button btnCancle = (Button) contentView.findViewById(R.id.btn_cancle);
btnOk.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
String name = etName.getText().toString();
String pwd = etPwd.getText().toString();
if (name.equals("") || pwd.equals("")) {
Toast.makeText(Main3Activity.this, "用户名或密码不能为空。", Toast.LENGTH_SHORT).show();
} else {
Intent intent = new Intent(Main3Activity.this, Main2Activity.class);
startActivity(intent);
//关闭对话框
dialog.dismiss();
}
}
});
btnCancle.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
//关闭对话框
dialog.dismiss();
}
});
//设置内容
builder.setView(contentView);
//创建
dialog = builder.create();
//显示
dialog.show();
}
}
这是自定义的Dialog的XML文件
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#ccc"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@mipmap/ic_launcher" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="自定义的view对话框" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#0f0"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="用户名" />
<EditText
android:id="@+id/et_name"
android:layout_width="100dp"
android:layout_height="wrap_content" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="密码" />
<EditText
android:id="@+id/et_pwd"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:password="true" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="horizontal">
<Button
android:id="@+id/btn_cancle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="取消" />
<Button
android:id="@+id/btn_ok"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="确定" />
</LinearLayout>
</LinearLayout>
</LinearLayout>