Android 系统原生dialog使用
先上图，不上图的程序员不是好程序员： 两个按钮的 dialog 三个按钮的 dialog 列表样式 dialog 单选 dialog 多选 dialog 转圈加载 dialog 带有加载进度的 dialog 带有输入框 dialog 引入布局的 dialog 看了效果下面该看代码了 1、MainActivity的xml内代码 <?xml version="1.0" encoding="utf-8"?> <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" tools:context=".MainActivity"> <Button android:id="@+id/btn_two" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="最普通的 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_three" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="三个按钮的 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_list" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="列表 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_multi_select" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="多选 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_single_select" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="单选 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_waiting" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="等待 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_loading" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="加载 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_input" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="输入 dialog" android:textAllCaps="false" /> <Button android:id="@+id/btn_my_style" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="自定义 dialog" android:textAllCaps="false" /> </LinearLayout> 2、MainActivity的java文件内代码即逻辑代码 public class MainActivity extends AppCompatActivity implements View.OnClickListener { private AlertDialog.Builder builder; private ProgressDialog progressDialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button btnTwo = findViewById(R.id.btn_two); Button btnThree = findViewById(R.id.btn_three); Button btnList = findViewById(R.id.btn_list); Button btnMultiSelect = findViewById(R.id.btn_multi_select); Button btnSingleSelect = findViewById(R.id.btn_single_select); Button btnWaiting = findViewById(R.id.btn_waiting); Button btnLoading = findViewById(R.id.btn_loading); Button btnInput = findViewById(R.id.btn_input); Button btnMyStyle = findViewById(R.id.btn_my_style); btnTwo.setOnClickListener(this); btnThree.setOnClickListener(this); btnList.setOnClickListener(this); btnMultiSelect.setOnClickListener(this); btnSingleSelect.setOnClickListener(this); btnWaiting.setOnClickListener(this); btnLoading.setOnClickListener(this); btnInput.setOnClickListener(this); btnMyStyle.setOnClickListener(this); } @Override public void onClick(View view) { int id = view.getId(); switch (id) { case R.id.btn_two://最普通dialog showTwo(); break; case R.id.btn_three://三个按钮dialog showThree(); break; case R.id.btn_list://列表样式dialog showList(); break; case R.id.btn_multi_select://多选dialog showMultiSelect(); break; case R.id.btn_single_select://单选dialog showSingSelect(); break; case R.id.btn_waiting://等待dialog showWaiting(); break; case R.id.btn_loading://加载进度dialog showLoading(); break; case R.id.btn_input://输入框dialog showInput(); break; case R.id.btn_my_style://自定义dialog showMyStyle(); break; default: } } /** * 两个按钮的 dialog */ private void showTwo() { builder = new AlertDialog.Builder(this).setIcon(R.mipmap.ic_launcher).setTitle("最普通dialog") .setMessage("我是最简单的dialog").setPositiveButton("确定（积极）", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //ToDo: 你想做的事情 Toast.makeText(MainActivity.this, "确定按钮", Toast.LENGTH_LONG).show(); } }).setNegativeButton("取消（消极）", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //ToDo: 你想做的事情 Toast.makeText(MainActivity.this, "关闭按钮", Toast.LENGTH_LONG).show(); dialogInterface.dismiss(); } }); builder.create().show(); } /** * 三个按钮的 dialog */ private void showThree() { builder = new AlertDialog.Builder(this).setIcon(R.mipmap.ic_launcher).setTitle("三个按钮dialog") .setMessage("三个按钮dialog").setPositiveButton("确定（积极）", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //ToDo: 你想做的事情 Toast.makeText(MainActivity.this, "确定按钮", Toast.LENGTH_LONG).show(); } }).setNeutralButton("你猜（中立）", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(MainActivity.this, "你猜按钮", Toast.LENGTH_LONG).show(); } }).setNegativeButton("取消（消极）", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { //ToDo: 你想做的事情 Toast.makeText(MainActivity.this, "关闭按钮", Toast.LENGTH_LONG).show(); dialogInterface.dismiss(); } }); builder.create().show(); } /** * 列表 dialog */ private void showList() { final String[] items = {"item 1", "item 2", "item 3", "item 4", "item 5", "item 6"}; builder = new AlertDialog.Builder(this).setIcon(R.mipmap.ic_launcher) .setTitle("列表dialog") .setItems(items, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(MainActivity.this, "你点击的内容为： " + items[i], Toast.LENGTH_LONG).show(); } }); builder.create().show(); } /** * 多选 dialog */ private void showMultiSelect() { final List<Integer> choice = new ArrayList<>(); final String[] items = {"多选1", "多选2", "多选3", "多选4", "多选5", "多选6"}; //默认都未选中 boolean[] isSelect = {false, false, false, false, false, false}; builder = new AlertDialog.Builder(this).setIcon(R.mipmap.ic_launcher) .setTitle("多选dialog") .setMultiChoiceItems(items, isSelect, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i, boolean b) { if (b) { choice.add(i); } else { choice.remove(i); } } }).setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { StringBuilder str = new StringBuilder(); for (int j = 0; j < choice.size(); j++) { str.append(items[choice.get(j)]); } Toast.makeText(MainActivity.this, "你选择了" + str, Toast.LENGTH_LONG).show(); } }); builder.create().show(); } private int choice; /** * 单选 dialog */ private void showSingSelect() { //默认选中第一个 final String[] items = {"单选1", "单选2", "单选3", "单选4", "单选5", "单选6"}; choice = -1; builder = new AlertDialog.Builder(this).setIcon(R.mipmap.ic_launcher).setTitle("单选列表") .setSingleChoiceItems(items, 0, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { choice = i; } }).setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { if (choice != -1) { Toast.makeText(MainActivity.this, "你选择了" + items[choice], Toast.LENGTH_LONG).show(); } } }); builder.create().show(); } /** * 圆圈加载进度的 dialog */ private void showWaiting() { progressDialog = new ProgressDialog(this); progressDialog.setIcon(R.mipmap.ic_launcher); progressDialog.setTitle("加载dialog"); progressDialog.setMessage("加载中..."); progressDialog.setIndeterminate(true);// 是否形成一个加载动画 true表示不明确加载进度形成转圈动画 false 表示明确加载进度 progressDialog.setCancelable(false);//点击返回键或者dialog四周是否关闭dialog true表示可以关闭 false表示不可关闭 progressDialog.show(); } /** * 带有进度的 dialog */ private void showLoading() { final int MAX_VALUE = 100; progressDialog = new ProgressDialog(this); progressDialog.setProgress(0); progressDialog.setTitle("带有加载进度dialog"); progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); progressDialog.setMax(MAX_VALUE); progressDialog.show(); new Thread(new Runnable() { @Override public void run() { int progress = 0; while (progress < MAX_VALUE) { try { Thread.sleep(100); progress++; progressDialog.setProgress(progress); } catch (InterruptedException e) { e.printStackTrace(); } } //加载完毕自动关闭dialog progressDialog.cancel(); } }).start(); } /** * 一个输入框的 dialog */ private void showInput() { final EditText editText = new EditText(this); builder = new AlertDialog.Builder(this).setTitle("输入框dialog").setView(editText) .setPositiveButton("读取输入框内容", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(MainActivity.this, "输入内容为：" + editText.getText().toString() , Toast.LENGTH_LONG).show(); } }); builder.create().show(); } /** * 原生自定义 dialog */ private void showMyStyle() { @SuppressLint("InflateParams") View view = LayoutInflater.from(this).inflate(R.layout.layout_test, null); final EditText etUsername = view.findViewById(R.id.et_username); final EditText etPassword = view.findViewById(R.id.et_password); builder = new AlertDialog.Builder(this).setView(view).setTitle("自定义dialog——登录").setIcon(R.mipmap.ic_launcher) .setPositiveButton("登录", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { Toast.makeText(MainActivity.this, "账号： " + etUsername.getText().toString() + " 密码： " + etPassword.getText().toString() , Toast.LENGTH_LONG).show(); } }); builder.create().show(); } } 3、介绍一些好用的第三方dialog库 1、material-dialogs 2、FlycoDialog_Master
