Android中Dialog对话框
16lz
2021-01-23
布局文件xml：
1 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 2 xmlns:tools="http://schemas.android.com/tools" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" 5 android:orientation="vertical" 6 android:paddingBottom="@dimen/activity_vertical_margin" 7 android:paddingLeft="@dimen/activity_horizontal_margin" 8 android:paddingRight="@dimen/activity_horizontal_margin" 9 android:paddingTop="@dimen/activity_vertical_margin"10 tools:context=".DialogActivity" >11 12 <Button13 android:id="@+id/plainDialog"14 android:layout_width="match_parent"15 android:layout_height="wrap_content"16 android:text="普通Dialog" />17 18 <Button19 android:id="@+id/plainDialogEvent"20 android:layout_width="match_parent"21 android:layout_height="wrap_content"22 android:text="Dialog按钮事件集中处理" />23 24 <Button25 android:id="@+id/inputDialog"26 android:layout_width="match_parent"27 android:layout_height="wrap_content"28 android:text="请输入框" />29 30 <Button31 android:id="@+id/listDialog"32 android:layout_width="match_parent"33 android:layout_height="wrap_content"34 android:text="列表对话框" />35 36 <Button37 android:id="@+id/radioDialog"38 android:layout_width="match_parent"39 android:layout_height="wrap_content"40 android:text="单选对话框" />41 42 <Button43 android:id="@+id/checkboxDialog"44 android:layout_width="match_parent"45 android:layout_height="wrap_content"46 android:text="多选对话框" />47 48 <Button49 android:id="@+id/diyDialog"50 android:layout_width="match_parent"51 android:layout_height="wrap_content"52 android:text="自定义布局对话框" />53 54 </LinearLayout>
Activity文件：
普通的dialog：
1 private void plainDialogDemo() { 2 3 Button plainBtn = (Button) findViewById(R.id.plainDialog); 4 plainBtn.setOnClickListener(new OnClickListener() { 5 6 public void onClick(View v) { 7 8 new AlertDialog.Builder(DialogActivity.this) 9 .setTitle("删除")10 .setMessage("确定删除指定数据")11 .setPositiveButton("确定",12 new DialogInterface.OnClickListener() {13 14 @Override15 public void onClick(DialogInterface dialog,16 int which) {17 Toast.makeText(getApplicationContext(),18 "确定了", Toast.LENGTH_SHORT)19 .show();20 }21 })22 .setNegativeButton("取消",23 new DialogInterface.OnClickListener() {24 25 @Override26 public void onClick(DialogInterface dialog,27 int which) {28 }29 }).setCancelable(false).show();30 }31 });32 }
效果如下：
输入文本框的dialog：
1 private void inputDialog() { 2 Button inputBtn = (Button) findViewById(R.id.inputDialog); 3 inputBtn.setOnClickListener(new OnClickListener() { 4 5 @Override 6 public void onClick(View v) { 7 // TODO Auto-generated method stub 8 final EditText et = new EditText(DialogActivity.this); 9 new AlertDialog.Builder(DialogActivity.this)10 .setTitle("请输入数字")11 .setView(et)12 .setPositiveButton("确定",13 new DialogInterface.OnClickListener() {14 15 @Override16 public void onClick(DialogInterface dialog,17 int which) {18 // TODO Auto-generated method stub19 Toast.makeText(getApplicationContext(),20 et.getText(),21 Toast.LENGTH_SHORT).show();22 }23 }).setNegativeButton("取消", null)24 .setCancelable(false).show();25 }26 });27 }
效果如下：
列表dialog：
private void listDialogDemo() { Button listBtn = (Button) findViewById(R.id.listDialog); listBtn.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { final String[] names = { "C罗", "J罗", "H罗" }; new AlertDialog.Builder(DialogActivity.this).setTitle("列表对话框") .setItems(names, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(DialogActivity.this, names[which], Toast.LENGTH_SHORT) .show(); } }).setNegativeButton("取消", null).show(); } }); }
效果如下：
单选dialog：
1 private void radioDialogDemo() { 2 Button radioButton = (Button) findViewById(R.id.radioDialog); 3 radioButton.setOnClickListener(new OnClickListener() { 4 5 @Override 6 public void onClick(View v) { 7 8 final String[] names = { "C罗", "J罗", "H罗" }; 9 new AlertDialog.Builder(DialogActivity.this)10 .setTitle("列表对话框")11 .setSingleChoiceItems(names, 0,12 new DialogInterface.OnClickListener() {13 14 @Override15 public void onClick(DialogInterface dialog,16 int which) {17 18 selecteName = names[which];19 }20 })21 .setPositiveButton("确定",22 new DialogInterface.OnClickListener() {23 24 @Override25 public void onClick(DialogInterface dialog,26 int which) {27 28 Toast.makeText(DialogActivity.this,29 selecteName, Toast.LENGTH_SHORT)30 .show();31 }32 }).setNegativeButton("取消", null).show();33 }34 });35 }
效果如下：
多选dialog：
1 private void checkDialogDemo() { 2 Button checkBtn = (Button) findViewById(R.id.checkboxDialog); 3 checkBtn.setOnClickListener(new OnClickListener() { 4 5 @Override 6 public void onClick(View v) { 7 final String[] names = { "C罗", "J罗", "H罗" }; 8 final boolean[] selected = new boolean[] { true, false, true }; 9 new AlertDialog.Builder(DialogActivity.this)10 .setMultiChoiceItems(11 names,12 selected,13 new DialogInterface.OnMultiChoiceClickListener() {14 15 @Override16 public void onClick(DialogInterface dialog,17 int which, boolean isChecked) {18 19 }20 })21 .setPositiveButton("确定",22 new DialogInterface.OnClickListener() {23 24 @Override25 public void onClick(DialogInterface dialog,26 int which) {27 StringBuilder sb = new StringBuilder(28 "你选择了：");29 for (int i = 0; i < names.length; i++) {30 if (selected[i]) {31 sb.append(names[i]);32 }33 }34 Toast.makeText(DialogActivity.this,35 sb.toString(), 1).show();36 }37 }).setNegativeButton("取消", null).show();38 }39 });40 }
效果如下：
自定义dialog：
1 private void customDialogDemo() { 2 final AlertDialog dlg = new AlertDialog.Builder(this).create(); 3 dlg.show(); 4 Window window = dlg.getWindow(); 5 window.setContentView(R.layout.diylayout); 6 ImageButton ok = (ImageButton) window.findViewById(R.id.btnok); 7 ok.setOnClickListener(new View.OnClickListener() { 8 9 @Override10 public void onClick(View v) {11 Toast.makeText(getApplicationContext(), "关闭了",12 Toast.LENGTH_SHORT).show();13 dlg.dismiss();14 }15 });16 }
自定义布局：
1 <?xml version="1.0" encoding="utf-8"?> 2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 3 android:layout_width="match_parent" 4 android:layout_height="match_parent" > 5 6 <ImageView 7 android:id="@+id/dialogimg" 8 android:layout_width="wrap_content" 9 android:layout_height="wrap_content"10 android:layout_centerInParent="true"11 android:src="@drawable/dialog_bg" />12 13 <TextView14 android:layout_width="wrap_content"15 android:layout_height="wrap_content"16 android:layout_alignLeft="@id/dialogimg"17 android:layout_alignTop="@id/dialogimg"18 android:layout_marginLeft="50dp"19 android:layout_marginTop="60dp"20 android:text="自定义的dialog" />21 22 <ImageButton23 android:id="@+id/btnok"24 android:layout_width="30dp"25 android:layout_height="30dp"26 android:layout_alignRight="@id/dialogimg"27 android:layout_alignTop="@id/dialogimg"28 android:layout_marginRight="15dp"29 android:layout_marginTop="15dp"30 android:background="@drawable/close_dialog" />31 32 </RelativeLayout>
效果如下：
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