直接看代码：
public class ThirdActivity extends Activity{ private Button but , but1 ; private AlertDialog dialog ; private AlertDialog.Builder builder; private ProgressDialog progressDialog ; private SexDialog dialogBottom ; private PopupWindow popupWindow ; private View popupWindowView ; private WindowManager.LayoutParams lp ; @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView( R.layout.thirdlayout); but = (Button) findViewById( R.id.but3); but1 = (Button) findViewById( R.id.but33); initDialog(); //普通对话框 initItems(); //列表对话框 initSingleChoice(); //单选项对话框 initSMultiChoice(); //复选对话框 initProgressDialog(); //进度条对话框 showSexDialogBottom(); //自定义对话框（继承Dialog 自写样式） but.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { dialog.show(); dialogBottom.show(); progressDialog.show(); dialogBottom.show(); } }); but1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (popupWindow.isShowing()){ popupWindow.dismiss(); }else{ backgroundAlpha(ThirdActivity.this , 0.5f); popupWindow.showAsDropDown(v); } } }); } /** * 普通对话框 */ private void initDialog(){ dialog = new AlertDialog.Builder(this).create(); dialog.setTitle("系统提示"); dialog.setIcon(R.mipmap.ic_launcher); dialog.setMessage("最基本的对话框学习"); dialog.setButton(AlertDialog.BUTTON_NEGATIVE, "取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(ThirdActivity.this , "取消" , Toast.LENGTH_SHORT).show(); } }); dialog.setButton(AlertDialog.BUTTON_NEUTRAL, "中立", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(ThirdActivity.this , "中立" , Toast.LENGTH_SHORT).show(); } }); dialog.setButton(AlertDialog.BUTTON_POSITIVE, "确认", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(ThirdActivity.this , "确认" , Toast.LENGTH_SHORT).show(); } }); } /** * 列表对话框 */ private void initItems(){ String[] strings = new String[]{"选项一" , "选项二" ,"选项三","选项四" }; builder = new AlertDialog.Builder(this); builder.setTitle("系统提示"); builder.setIcon(R.mipmap.ic_launcher); //builder.setMessage("最基本的对话框学习");//这时候这个就不能设置了，否侧显示的这个，列表不能显示了 builder.setItems(strings, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { switch (which){ case 0 : Toast.makeText(ThirdActivity.this , "选项一" , Toast.LENGTH_SHORT).show(); break; case 1 : Toast.makeText(ThirdActivity.this , "选项二" , Toast.LENGTH_SHORT).show(); break; case 2 : Toast.makeText(ThirdActivity.this , "选项三" , Toast.LENGTH_SHORT).show(); break; case 3 : Toast.makeText(ThirdActivity.this , "选项四" , Toast.LENGTH_SHORT).show(); break; } } }); dialog = builder.create(); } /** * 单选对话框 */ private void initSingleChoice(){ String[] strings = new String[]{"选项一" , "选项二" ,"选项三","选项四" }; builder = new AlertDialog.Builder(this); builder.setTitle("系统提示"); builder.setIcon(R.mipmap.ic_launcher); //builder.setMessage("最基本的对话框学习");//这时候这个就不能设置了，否侧显示的这个，列表不能显示了 builder.setSingleChoiceItems(strings, 1, new DialogInterface.OnClickListener() { //第二个int参数 代表一开始选中的第几项 @Override public void onClick(DialogInterface dialog, int which) { switch (which){ case 0 : Toast.makeText(ThirdActivity.this , "选项一" , Toast.LENGTH_SHORT).show(); break; case 1 : Toast.makeText(ThirdActivity.this , "选项二" , Toast.LENGTH_SHORT).show(); break; case 2 : Toast.makeText(ThirdActivity.this , "选项三" , Toast.LENGTH_SHORT).show(); break; case 3 : Toast.makeText(ThirdActivity.this , "选项四" , Toast.LENGTH_SHORT).show(); break; } } }); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); dialog = builder.create(); } /** * 多选对话框 */ private void initSMultiChoice(){ String[] strings = new String[]{"选项一" , "选项二" ,"选项三","选项四" }; boolean[] booleen = new boolean[]{false ,false ,false, false}; builder = new AlertDialog.Builder(this); builder.setTitle("系统提示"); builder.setIcon(R.mipmap.ic_launcher); //builder.setMessage("最基本的对话框学习");//这时候这个就不能设置了，否侧显示的这个，列表不能显示了 builder.setMultiChoiceItems(strings, booleen, new DialogInterface.OnMultiChoiceClickListener() { @Override public void onClick(DialogInterface dialog, int which, boolean isChecked) { switch (which){ case 0 : Toast.makeText(ThirdActivity.this , "选项一" , Toast.LENGTH_SHORT).show(); break; case 1 : Toast.makeText(ThirdActivity.this , "选项二" , Toast.LENGTH_SHORT).show(); break; case 2 : Toast.makeText(ThirdActivity.this , "选项三" , Toast.LENGTH_SHORT).show(); break; case 3 : Toast.makeText(ThirdActivity.this , "选项四" , Toast.LENGTH_SHORT).show(); break; } } }); builder.setPositiveButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); dialog = builder.create(); } /** * 进度条对话框 */ private void initProgressDialog(){ progressDialog = new ProgressDialog(this); progressDialog.setTitle("正在加载，请稍等。。。"); progressDialog.setIcon( R.mipmap.ic_launcher); progressDialog.setProgressStyle( ProgressDialog.STYLE_HORIZONTAL); progressDialog.setButton(ProgressDialog.BUTTON_POSITIVE, "确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { progressDialog.dismiss(); } }); } /** * 自定义对话框样式 * @param */ private void showSexDialogBottom() { View contentView = LayoutInflater.from(this).inflate(R.layout.dialog_sex_dialogfragment, null); dialogBottom = new SexDialog(this, contentView, R.style.sex_dialog); }
}
继承Dialog类：（自定义对话框）
public class SexDialog extends Dialog { private View content ; private Context context ; public SexDialog(@NonNull Context context) { super(context); } public SexDialog(@NonNull Context context, @StyleRes int themeResId) { super(context, themeResId); } protected SexDialog(@NonNull Context context, boolean cancelable, @Nullable OnCancelListener cancelListener) { super(context, cancelable, cancelListener); } public SexDialog(Context context , View view , int themeResId){ super(context, themeResId); this.context = context ; this.content = view ; } @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); // getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT); this.setContentView(content); Window window = getWindow(); WindowManager manager = ((Activity) context).getWindowManager(); Display d = manager.getDefaultDisplay(); // 获取屏幕宽、高度 WindowManager.LayoutParams lp = window.getAttributes(); // 获取对话框当前的参数值 lp.gravity = Gravity.BOTTOM; //位于底部 lp.width = WindowManager.LayoutParams.MATCH_PARENT; lp.height = WindowManager.LayoutParams.WRAP_CONTENT; // lp.width = (int) (d.getWidth() * 0.8); // 宽度设置为屏幕的0.8，根据实际情况调整 // lp.height = (int) (d.getHeight() * 0.5); // 高度设置为屏幕的0.5，根据实际情况调整 window.setAttributes(lp); } }
style:
<style name="sex_dialog" parent="@android:style/Theme.Dialog"> <item name="android:windowNoTitle">true</item> <item name="android:windowFrame">@null</item> <item name="android:background">@android:color/transparent</item> <item name="android:windowIsFloating">true</item> <item name="android:backgroundDimEnabled">true</item> <item name="android:windowBackground">@color/transparent</item> </style> <style name="line_style"> <item name="android:layout_width">match_parent</item> <item name="android:background">@color/new_line_bg</item> <item name="android:layout_height">0.1dp</item> </style>
就不上结果了。常见的对话框使用就这个么几种。