Android中Dialog对话框
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 <Button 13 android:id="@+id/plainDialog" 14 android:layout_width="match_parent" 15 android:layout_height="wrap_content" 16 android:text="普通Dialog" /> 17 18 <Button 19 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 <Button 25 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 <Button 31 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 <Button 37 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 <Button 43 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 <Button 49 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 @Override 15 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 @Override 26 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 @Override 16 public void onClick(DialogInterface dialog, 17 int which) { 18 // TODO Auto-generated method stub 19 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 @Override 15 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 @Override 25 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 @Override 16 public void onClick(DialogInterface dialog, 17 int which, boolean isChecked) { 18 19 } 20 }) 21 .setPositiveButton("确定", 22 new DialogInterface.OnClickListener() { 23 24 @Override 25 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 @Override 10 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 <TextView 14 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 <ImageButton 23 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：
