5.ProgressBar
//水平进度条
5.1 ProgressBar的几个常用属性和方法
android:max="200" 滚动条最大值
android:progress="0" 滚动条当前值
android:visibility="visible" 滚动条是否可见
setProgress(int) 设置当前值
android:secondaryProgress 这个值是为了缓存准备的。
5.2 ProgressBar的样式
ProgressBar的样式设定其实有两种方式，在API文档中说明的方式如下：
Widget.ProgressBar.Horizontal
Widget.ProgressBar.Small
Widget.ProgressBar.Large
Widget.ProgressBar.Inverse
Widget.ProgressBar.Small.Inverse
Widget.ProgressBar.Large.Inverse
使用的时候可以这样：style="@android:style/Widget.ProgressBar.Small"，另外还有一种方式就是使用系统的attr，下面的方式是系统的style：
style="?android:attr/progressBarStyle"
style="?android:attr/progressBarStyleHorizontal"
style="?android:attr/progressBarStyleInverse"
style="?android:attr/progressBarStyleLarge"
style="?android:attr/progressBarStyleLargeInverse"
style="?android:attr/progressBarStyleSmall"
style="?android:attr/progressBarStyleSmallInverse"
style="?android:attr/progressBarStyleSmallTitle"
也可以自己定义 。
在 style="@android:style/Widget.ProgressBar.Large" 这个属性就相当于 attr.xml。点开源码是这样的：
下面使用步骤：
1.在drawable文件下新建一个progressbar_horizontal_1.xml。代码中的progress和secondprogress中src的资源便是我自定义的，注意这三个之间的叠放顺序，background是最底层，中间的是progress最上层是second。
-
-
-
2.在style中新建一个自定义的style
3.组件引用
//水平进度条
6.RadioGroup，RadioButton
6.1类结构
java.lang.Object
↳ android.view.View
↳ android.view.ViewGroup
↳ android.widget.LinearLayout
↳ android.widget.RadioGroup
java.lang.Object
↳ android.view.View
↳ android.widget.TextView
↳ android.widget.Button
↳ android.widget.CompoundButton
↳ android.widget.RadioButton
RadioButton继承于Button，所以具有普通按钮的各种属性，但是与普通按钮不同的是，RadioButton提供了可选中的功能。在使用RadioButton的时候，要使用RadioGroup来包围起这些RadioButton。
【备注：】RadioGroup是LinearLayout的子类，所以RadioGroup本质上是一个存放RadioButton的布局容器。
需要记住的是：默认的LinearLayout布局的Orientation属性是水平的，而默认的RadioGroup的Orientation属性是垂直的。
RadioButton
6.2 RadioGroup 和RadioButton 的使用
1.系统自带的原点不好看怎么办？android :button ="@null" 这样就会没有了
2.默认选中 android:checked="true"
3.替换系统自带的icon，android:drawableleft="@mipmap/ic_lanuch"
RadioGroup radiogroup= (RadioGroup) findViewById(R.id.radiogroup);
radiogroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, @IdRes int checkedId) {
RadioButton radioButton = (RadioButton) findViewById(checkedId);
String result = radioButton.getText().toString();
Toast.makeText(MainActivity.this, "您选择了：" + result,
Toast.LENGTH_LONG).show();
}
});
7.CheckBox
CheckBox继承于Button，所以具有普通按钮的各种属性，但是与普通按钮不同的是， CheckBox 提供了可选中的功能。
【备注：】CheckBox有一个父类是CompoundButton，所以在使用监听器的时候要注意跟单选项进行区别。
public class MainActivity extends AppCompatActivity {
private CheckBox checkBox_main_hobby1;
private CheckBox checkBox_main_hobby2;
private CheckBox checkBox_main_hobby3;
private CheckBox checkBox_main_hobby4;
private CheckBox checkBox_main_selectall;
private Button button_main_submit;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.checkbox);
checkBox_main_hobby1 = (CheckBox) findViewById(R.id.checkBox_main_hobby1);
checkBox_main_hobby2 = (CheckBox) findViewById(R.id.checkBox_main_hobby2);
checkBox_main_hobby3 = (CheckBox) findViewById(R.id.checkBox_main_hobby3);
checkBox_main_hobby4 = (CheckBox) findViewById(R.id.checkBox_main_hobby4);
checkBox_main_selectall = (CheckBox) findViewById(R.id.checkBox_main_selectall);
button_main_submit = (Button) findViewById(R.id.button_main_submit);
button_main_submit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MainActivity.this, "您选择了：" + getResult(),
Toast.LENGTH_SHORT).show();
}
});
checkBox_main_hobby1.setOnCheckedChangeListener(listener);
checkBox_main_hobby2.setOnCheckedChangeListener(listener);
checkBox_main_hobby3.setOnCheckedChangeListener(listener);
checkBox_main_hobby4.setOnCheckedChangeListener(listener);
// 给全选checkbox设置单击监听事件
checkBox_main_selectall.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
boolean flag = checkBox_main_selectall.isChecked();
checkBox_main_hobby1.setChecked(flag);
checkBox_main_hobby2.setChecked(flag);
checkBox_main_hobby3.setChecked(flag);
checkBox_main_hobby4.setChecked(flag);
}
});
}
// 定义一个有名字的监听器类。之所以不用匿名内部类形式，是因为有多个控件都要使用这同一个监听器
CompoundButton.OnCheckedChangeListener listener = new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(CompoundButton buttonView,
boolean isChecked) {
if (!buttonView.isChecked()) {
checkBox_main_selectall.setChecked(false);
}
if (checkBox_main_hobby1.isChecked()
&& checkBox_main_hobby2.isChecked()
&& checkBox_main_hobby3.isChecked()
&& checkBox_main_hobby4.isChecked()) {
checkBox_main_selectall.setChecked(true);
}
Toast.makeText(MainActivity.this, "您选择了：" + getResult(),
Toast.LENGTH_SHORT).show();
}
};
// 获取多选项中被勾选的结果。利用isChecked()方法来判断哪个选项被勾选
private String getResult() {
StringBuilder sb = new StringBuilder();
if (checkBox_main_hobby1.isChecked()) {
sb.append(checkBox_main_hobby1.getText());
}
if (checkBox_main_hobby2.isChecked()) {
sb.append(checkBox_main_hobby2.getText());
}
if (checkBox_main_hobby3.isChecked()) {
sb.append(checkBox_main_hobby3.getText());
}
if (checkBox_main_hobby4.isChecked()) {
sb.append(checkBox_main_hobby4.getText());
}
return sb.toString();
}
}
8.Switch，RatingBar.
Switch是在4.0以后推出的，所以要注意开发时的minsdk设置,google在API 21后也推出support v7 包下的SwitchCompa的Material Design
开关控件，对低版本的有了更好的的支持。其实switch的应用场景和ToggleButton类似，多应用于两种状态的切换。
8.1 Switch 的常用属性
android:typeface="normal":设置字体类型
android:track="":设置开关的轨迹图片
android:textOff="开"：设置开关checked的文字
android:textOn="关"：设置开关关闭时的文字
android:thumb="":设置开关的图片
android:switchMinWidth=""：开关最小宽度
android:switchPadding="":设置开关 与文字的空白距离
android:switchTextAppearance="":设置文本的风格
android:checked="":设置初始选中状态
android:splitTrack="true":是否设置一个间隙，让滑块与底部图片分隔（API 21及以上）
android:showText="true"：设置是否显示开关上的文字（API 21及以上）
8.2 Switch的使用
1.layout 布局
2.页面代码
public class MainActivity extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener{
private Switch aSwitch;
private SwitchCompat aSwitchCompat;
private TextView text1,text2,switchText,switchCompatText;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//实例化
aSwitch = (Switch) findViewById(R.id.switch1);
aSwitchCompat = (SwitchCompat) findViewById(R.id.switch_compat);
text1 = (TextView) findViewById(R.id.text);
text2 = (TextView) findViewById(R.id.text1);
//设置Switch事件监听
aSwitch.setOnCheckedChangeListener(this);
aSwitchCompat.setOnCheckedChangeListener(this);
}
/*
继承监听器的接口并实现onCheckedChanged方法
* */
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
switch (buttonView.getId()){
case R.id.switch1:
if(isChecked){
text1.setText("开");
}else {
text1.setText("关");
}
break;
case R.id.switch_compat:
if(isChecked){
text2.setText("开");
}else {
text2.setText("关");
}
break;
default:
break;
}
}
}
8.3 Switch的拓展
1.自定义样式,在values/style文件中自定义样式
2.然后添加到布局文件中
3.页面显示效果
修改样式
4.还可以将图片替换开关按钮
1.导入资源图片thumb.png ,thumb_on.png ,track_nomal.png ,track_on.png ,track_press.png
2.实现thumb_selector.xml
3.实现track_selector.xml
4.布局文件
5.代码文件
public class SecondActivity extends AppCompatActivity implements CompoundButton.OnCheckedChangeListener{
private SwitchCompat customSwitchCompat;
private TextView custom_result,CustomSwitchCompat_tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_second);
//实例化
customSwitchCompat = (SwitchCompat) findViewById(R.id.CustomSwitchCompat);
custom_result = (TextView) findViewById(R.id.custom_result);
//设置自定义的thumb和track
customSwitchCompat.setThumbResource(R.drawable.thumb_selector);
customSwitchCompat.setTrackResource(R.drawable.track_selector);
//设置Switch事件监听
customSwitchCompat.setOnCheckedChangeListener(this);
}
/*
继承监听器的接口并实现onCheckedChanged方法
* */
@Override
public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
if(isChecked){
custom_result.setText("开");
}else {
custom_result.setText("关");
}
}
}
7.AlertDialog
在实际开发过程中，可能会碰到各种各样的弹窗。提示信息。二话不说直接一波图。
7.1分析创建对话框的步骤：
1.创建一个dialog对象
AlertDialog.Builder builder=new AlertDialog.Builder(this);
2.创建对象之后，通过调用 create()方法构造对话框,并通过show()方法展示出来
AlertDialog alertDialog = builder.create();
alertDialog.show();
3.通过setXXX()方法，设置你所需要的各种属性
alertDialogBuilder.setTitle();//设置标题
alertDialogBuilder.setIcon();//设置图表
/*设置下方按钮*/
alertDialogBuilder.setPositiveButton();
alertDialogBuilder.setNegativeButton();
alertDialogBuilder.setNeutralButton();
/*对话框内容区域的设置提供了多种方法*/
setMessage();//设置显示文本
setItems();//设置对话框内容为简单列表项
setSingleChoiceItems();//设置对话框内容为单选列表项
setMultiChoiceItems();//设置对话框内容为多选列表项
setAdapter();//设置对话框内容为自定义列表项
setView();//设置对话框内容为自定义View
//设置对话框是否可取消
setCancelable(booleab cancelable);
setCancelListener(onCancelListener);
还有这样一种方式创建dialog
new AlertDialog.Builder(this)
.setTitle("确认")
.setMessage("确定吗？")
.setPositiveButton("是", ew DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
})
.show();
7.2 创建对话框的步骤
1.创建layout文件
2.创建Activity
public class MyAlertDiaologActivity extends AppCompatActivity implements View.OnClickListener{
//对应各个button
private Button simpleDiaog;
private Button simpleListDiaog;
private Button singleChoiceDiaog;
private Button multiChoiceDiaog;
private Button customAdateprDiaog;
private Button customViewDiaog;
//声明一个AlertDialog构造器
private AlertDialog.Builder builder;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dialog);
//实例化控件
simpleDiaog= (Button) findViewById(R.id.btn_simple_dialog);
simpleListDiaog= (Button) findViewById(R.id.btn_simple_list_dialog);
singleChoiceDiaog= (Button) findViewById(R.id.btn_single_choice_dialog);
multiChoiceDiaog= (Button) findViewById(R.id.btn_multi_choice_dialog);
customAdateprDiaog= (Button) findViewById(R.id.btn_custom_adapter_dialog);
customViewDiaog= (Button) findViewById(R.id.btn_custom_view_dialog);
//监听点击事件
simpleDiaog.setOnClickListener(this);
simpleListDiaog.setOnClickListener(this);
singleChoiceDiaog.setOnClickListener(this);
multiChoiceDiaog.setOnClickListener(this);
customAdateprDiaog.setOnClickListener(this);
customViewDiaog.setOnClickListener(this);
}
/**
*
* 每个button点击后弹出对应对话框，为了方便，各写一个showXXDialog()方法
*/
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn_simple_dialog:
showSimpleDialog(view);
break;
case R.id.btn_simple_list_dialog:
showSimpleListDialog(view);
break;
case R.id.btn_single_choice_dialog:
showSingleChoiceDialog(view);
break;
case R.id.btn_multi_choice_dialog:
showMultiChoiceDialog(view);
break;
case R.id.btn_custom_adapter_dialog:
showCustomAdapterDialog(view);
break;
case R.id.btn_custom_view_dialog:
showCustomViewDialog(view);
break;
}
}
}
3.展示基本对话框
//展示基本对话框
//显示基本Dialog
private void showSimpleDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("简单对话框");
builder.setMessage("展示简单的对话框的内容");
//监听下方button点击事件
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
});
//设置对话框是可取消的
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
基本对话框
4.列表对话框
//展示列表对话框
private void showSimpleListDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("列表对话框");
/**
* 设置内容区域为简单列表项
*/
final String[] Items={"列表一","列表二","列表三"};
builder.setItems(Items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "You clicked "+Items[i], Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
列表对话框
5.单选框
//单选框
private void showSingleChoiceDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("单选框");
/**
* 设置内容区域为单选列表项
*/
final String[] items={"列表一","列表二","列表三"};
builder.setSingleChoiceItems(items, 1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "You clicked "+items[i], Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
单选框
6.多选框
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle(R.string.simple_list_dialog);
/**
* 设置内容区域为多选列表项
*/
final String[] items={"Items_one","Items_two","Items_three"};
builder.setMultiChoiceItems(items, new boolean[]{true, false, true}, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i, boolean b) {
Toast.makeText(getApplicationContext(),"You clicked "+items[i]+" "+b,Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
多选框
7.输入框
//输入框
private void showCustomAdapterDialog(View view) {
final EditText editText = new EditText(this);
editText.setHint("最多输入6个字");
builder=new AlertDialog.Builder(this);
builder.setTitle("输入框");
builder.setIcon(R.mipmap.ic_launcher);
builder.setView(editText);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
输入框
8.自定义框
//自定义输入框
private void showCustomViewDialog(View view) {
ImageView img = new ImageView(this);
img.setImageResource(R.mipmap.ic_launcher);
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("自定义对话框");
builder.setView(img);
//监听下方button点击事件
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
});
//设置对话框是可取消的
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
自定义框
自定义一般就是自定义一个view,然后展示这个view的内容
dialog图
layout文件上面有。
完整代码：
import android.content.DialogInterface;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
/**
* Created by ${momoThree} on 2017/9/11.
* Title:
*/
public class MyAlertDiaologActivity extends AppCompatActivity implements View.OnClickListener{
//对应各个button
private Button simpleDiaog;
private Button simpleListDiaog;
private Button singleChoiceDiaog;
private Button multiChoiceDiaog;
private Button customAdateprDiaog;
private Button customViewDiaog;
//声明一个AlertDialog构造器
private AlertDialog.Builder builder;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_dialog);
//实例化控件
simpleDiaog= (Button) findViewById(R.id.btn_simple_dialog);
simpleListDiaog= (Button) findViewById(R.id.btn_simple_list_dialog);
singleChoiceDiaog= (Button) findViewById(R.id.btn_single_choice_dialog);
multiChoiceDiaog= (Button) findViewById(R.id.btn_multi_choice_dialog);
customAdateprDiaog= (Button) findViewById(R.id.btn_custom_adapter_dialog);
customViewDiaog= (Button) findViewById(R.id.btn_custom_view_dialog);
//监听点击事件
simpleDiaog.setOnClickListener(this);
simpleListDiaog.setOnClickListener(this);
singleChoiceDiaog.setOnClickListener(this);
multiChoiceDiaog.setOnClickListener(this);
customAdateprDiaog.setOnClickListener(this);
customViewDiaog.setOnClickListener(this);
}
/**
*
* 每个button点击后弹出对应对话框，为了方便，各写一个showXXDialog()方法
*/
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.btn_simple_dialog:
showSimpleDialog(view);
break;
case R.id.btn_simple_list_dialog:
showSimpleListDialog(view);
break;
case R.id.btn_single_choice_dialog:
showSingleChoiceDialog(view);
break;
case R.id.btn_multi_choice_dialog:
showMultiChoiceDialog(view);
break;
case R.id.btn_custom_adapter_dialog:
showCustomAdapterDialog(view);
break;
case R.id.btn_custom_view_dialog:
showCustomViewDialog(view);
break;
}
}
//自定义输入框
private void showCustomViewDialog(View view) {
ImageView img = new ImageView(this);
img.setImageResource(R.mipmap.ic_launcher);
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("自定义对话框");
builder.setView(img);
//监听下方button点击事件
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
});
//设置对话框是可取消的
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
//输入框
private void showCustomAdapterDialog(View view) {
final EditText editText = new EditText(this);
editText.setHint("最多输入6个字");
builder=new AlertDialog.Builder(this);
builder.setTitle("输入框");
builder.setIcon(R.mipmap.ic_launcher);
builder.setView(editText);
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
//多选框
private void showMultiChoiceDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("多选框");
/**
* 设置内容区域为多选列表项
*/
final String[] items={"列表一","列表二","列表三"};
builder.setMultiChoiceItems(items, new boolean[]{true, false, true}, new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i, boolean b) {
Toast.makeText(getApplicationContext(),"You clicked "+items[i]+" "+b,Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
//单选框
private void showSingleChoiceDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("单选框");
/**
* 设置内容区域为单选列表项
*/
final String[] items={"列表一","列表二","列表三"};
builder.setSingleChoiceItems(items, 1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "You clicked "+items[i], Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
//展示列表对话框
private void showSimpleListDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("列表对话框");
/**
* 设置内容区域为简单列表项
*/
final String[] Items={"列表一","列表二","列表三"};
builder.setItems(Items, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "You clicked "+Items[i], Toast.LENGTH_SHORT).show();
}
});
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
//展示基本对话框
//显示基本Dialog
private void showSimpleDialog(View view) {
builder=new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("简单对话框");
builder.setMessage("展示简单的对话框的内容");
//监听下方button点击事件
builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(),"您点击了确定内容",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(getApplicationContext(), "取消", Toast.LENGTH_SHORT).show();
}
});
//设置对话框是可取消的
builder.setCancelable(true);
AlertDialog dialog=builder.create();
dialog.show();
}
}
8.ProgressDialog
8.1 Progressdialog 类结构
java.lang.Object
↳android.app.Dialog
↳android.app.AlertDialog
↳android.app.ProgressDialog
8.2 ProgressDialog 的分析
ProgressDialog从上面的类结构就可以看出他是继承dailog的。所以作为弹窗式的进度条。它应该有亮着的特征。
1.在Activity中作为一个窗体弹出
2.拥有进度的统计和样式（圆形和水平）
8.3 ProgressDialog的使用
1.创建ProgressDialog
//方式一：
final ProgressDialog dialog = new ProgressDialog(this);
dialog.show();
//方式二 这种进度条只能是圆形条,设置title和Message提示内容
ProgressDialog dialog2 = ProgressDialog.show(this, "提示", "正在登陆中");
//方式三 这种进度条只能是圆形条,这里最后一个参数boolean indeterminate设置是否是不明确的状态
ProgressDialog dialog3 = ProgressDialog .show(this, "提示", "正在登陆中", false);
//方式四 这种进度条只能是圆形条,这里最后一个参数boolean cancelable 设置是否进度条是可以取消的
ProgressDialog dialog4 = ProgressDialog.show(this, "提示", "正在登陆中", false, true);
//方式五 使用静态方式创建并显示，这种进度条只能是圆形条,这里最后一个参数 DialogInterface.OnCancelListener
// cancelListener用于监听进度条被取消
ProgressDialog dialog5 = ProgressDialog.show(this, "提示", "正在登陆中", true, true, cancelListener);
private OnCancelListener cancelListener = new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
// TODO Auto-generated method stub
Toast.makeText(MainActivity.this, "进度条被取消", Toast.LENGTH_LONG)
.show();
}
};
2.ProgressDialog的样式有两种，一种是圆形不明确状态，一种是水平进度条状态
1.水平进度条
final ProgressDialog dialog = new ProgressDialog(this);
dialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);// 设置水平进度条
dialog.setCancelable(true);// 设置是否可以通过点击Back键取消
dialog.setCanceledOnTouchOutside(false);// 设置在点击Dialog外是否取消Dialog进度条
dialog.setIcon(R.drawable.ic_launcher);// 设置提示的title的图标，默认是没有的
dialog.setTitle("提示");
dialog.setMax(100);
dialog.setButton(DialogInterface.BUTTON_POSITIVE, "确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
dialog.setMessage("这是一个水平进度条");
dialog.show();
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
int i = 0;
while (i < 100) {
try {
Thread.sleep(200);
// 更新进度条的进度,可以在子线程中更新进度条进度
dialog.incrementProgressBy(1);
// dialog.incrementSecondaryProgressBy(10)//二级进度条更新方式
i++;
} catch (Exception e) {
// TODO: handle exception
}
}
// 在进度条走完时删除Dialog
dialog.dismiss();
}
}).start();
2.圆形进度条
final ProgressDialog dialog = new ProgressDialog(this);
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);// 设置进度条的形式为圆形转动的进度条
dialog.setCancelable(true);// 设置是否可以通过点击Back键取消
dialog.setCanceledOnTouchOutside(false);// 设置在点击Dialog外是否取消Dialog进度条
dialog.setIcon(R.drawable.ic_launcher);//
// 设置提示的title的图标，默认是没有的，如果没有设置title的话只设置Icon是不会显示图标的
dialog.setTitle("提示");
// dismiss监听
dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
// TODO Auto-generated method stub
}
});
// 监听Key事件被传递给dialog
dialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode,
KeyEvent event) {
// TODO Auto-generated method stub
return false;
}
});
// 监听cancel事件
dialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
// TODO Auto-generated method stub
}
});
//设置可点击的按钮，最多有三个(默认情况下)
dialog.setButton(DialogInterface.BUTTON_POSITIVE, "确定",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
dialog.setButton(DialogInterface.BUTTON_NEGATIVE, "取消",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
dialog.setButton(DialogInterface.BUTTON_NEUTRAL, "中立",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
}
});
dialog.setMessage("这是一个圆形进度条");
dialog.show();
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
try {
Thread.sleep(5000);
// cancel和dismiss方法本质都是一样的，都是从屏幕中删除Dialog,唯一的区别是
// 调用cancel方法会回调DialogInterface.OnCancelListener如果注册的话,dismiss方法不会回掉
dialog.cancel();
// dialog.dismiss();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}).start();