安卓弹出框集合

安卓弹出框集合

效果

标题加内容



经典弹出框



单机列表



复选框



* 自定义对话框效果

实现源码

标题加内容

/**
* 只有标题加内容
* @param view
*/
public void Btn1(View view) {
// 1. Instantiate an AlertDialog.Builder with its constructor
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// 2. Chain together various setter methods to set the dialog characteristics
builder.setMessage("我是内容")
.setTitle("我是标题");
// 3. Get the AlertDialog from create()
AlertDialog dialog = builder.create();
//4. show
dialog.show();
}

经典的弹出框

/**
* 经典的弹出框
* @param view
*/
public void Btn2(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// Add the buttons
builder.setMessage("我是内容")
.setTitle("我是标题")
.setIcon(R.mipmap.bulb)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
// User clicked OK button
Toast.makeText(MainActivity.this,"点击了确定按钮",Toast.LENGTH_SHORT).show();
}
});
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
}
});
// Set other dialog properties
// ...
builder.setNeutralButton("中立按钮", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(MainActivity.this,"点击了中立按钮",Toast.LENGTH_SHORT).show();
}
});
// Create the AlertDialog
AlertDialog dialog = builder.create();
//show
dialog.show();
}

单击列表，没有确认取消按钮

/**
* 单击列表，没有确认取消按钮
* @param view
*/
public void Btn3(View view) {
final String[] arrs=new String[]{"red","block","gray","pcik"};
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("我是标题")
.setItems(arrs, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// The 'which' argument contains the index position
// of the selected item
Toast.makeText(MainActivity.this,"点击了"+arrs[which],Toast.LENGTH_SHORT).show();
}
});
AlertDialog dialog =builder.create();
//show
dialog.show();
}

复选框效果

/**
* 复选框效果
* @param view
*/
public void Btn4(View view) {
final String[] arrs=new String[]{"red","block","gray","pcik"};
final List mSelectedItems = new ArrayList();  // Where we track the selected items
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// Set the dialog title
builder.setTitle("我是标题")
// Specify the list array, the items to be selected by default (null for none),
// and the listener through which to receive callbacks when items are selected
.setMultiChoiceItems(arrs, null,
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which,
boolean isChecked) {
if (isChecked) {
// If the user checked the item, add it to the selected items
mSelectedItems.add(which);
} else if (mSelectedItems.contains(which)) {
// Else, if the item is already in the array, remove it
mSelectedItems.remove(Integer.valueOf(which));
}
}
})
// Set the action buttons
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
// User clicked OK, so save the mSelectedItems results somewhere
// or return them to the component that opened the dialog
// ...
String str="";
for (int i = 0; i <mSelectedItems.size() ; i++) {
str+=arrs[i]+"/";
}
Toast.makeText(MainActivity.this,"点击了"+str,Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
// ...
Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
}
});
AlertDialog dialog =builder.create();
//show
dialog.show();
}

自定义对话框，可以根据自己需求设置任何内容。这里的例子是一个登录界面

布局文件dialog_signin.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<ImageView
android:src="@drawable/login"
android:layout_width="match_parent"
android:layout_height="64dp"
android:scaleType="center"
android:background="#FFFFBB33"
android:contentDescription="@string/app_name" />
<EditText
android:id="@+id/username"
android:inputType="textEmailAddress"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="16dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="4dp"
android:hint="请输入用户名" />
<EditText
android:id="@+id/password"
android:inputType="textPassword"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="4dp"
android:layout_marginLeft="4dp"
android:layout_marginRight="4dp"
android:layout_marginBottom="16dp"
android:fontFamily="sans-serif"
android:hint="请输入密码"/>
</LinearLayout>

activity内容

/**
* 自定义对话框，可以根据自己需求设置任何内容。这里的例子是一个登录界面
* @param view
*/
public void Btn5(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
// Get the layout inflater
LayoutInflater inflater = this.getLayoutInflater();
// Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
builder.setView(inflater.inflate(R.layout.dialog_signin, null))
// Add action buttons
.setPositiveButton("登录", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
// sign in the user ...
Toast.makeText(MainActivity.this,"这里写登录成功的处理",Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//
Toast.makeText(MainActivity.this,"取消",Toast.LENGTH_SHORT).show();
}
});

AlertDialog dialog =builder.create();
//show
dialog.show();
}

写在最后

想要学好安卓，不是到处看博客、看人家的文章、copy所谓的实现源码；而是去看官方文档。上面的代码全部都是直接从文档复制，简单处理的，可以直接用，文档有详细说明。加油！

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