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Android在开发中经常会遇到有弹框的需求。经常使用的有Dialog 弹框，Window弹框，Activity伪弹框这三种。
感谢http://sigechuizi.cn/article/107
Activity伪弹框：https://blog.csdn.net/qq_35698774/article/details/117438989
今天主要是讲解Dialog的使用：
Dialog继承Object,异步调用，不会阻塞UI线程。以下是对他的整体框架：
最常用的还是AlertDialog.今天主要是讲他的用法。AlertDialog的用法也很简单
setTitle ：为对话框设置标题
setIcon ：为对话框设置图标
setMessage：为对话框设置内容
setView ： 给对话框设置自定义样式
setItems ：设置对话框要显示的一个list，一般用于显示几个命令时
setMultiChoiceItems ：用来设置对话框显示一系列的复选框
setSingleChoiceItems ：用来设置对话框显示一系列的单选框
setNeutralButton ：普通按钮
setPositiveButton ：给对话框添加"Yes"按钮
setNegativeButton ：对话框添加"No"按钮
create ： 创建对话框
show ：显示对话框
1.只显示标题和内容
AlertDialog alertDialog1 = new AlertDialog.Builder(this)
.setTitle("这是标题")//标题
.setMessage("这是内容")//内容
.setIcon(R.mipmap.ic_launcher)//图标
.create();
alertDialog1.show();
2.有多个按钮
setPositiveButton 设置一个确定按钮
setNegativeButton 设置一个取消按钮
setNeutralButton 设置一个普通按钮
这三个按钮可以随意组合使用不冲突。
AlertDialog alertDialog2 = new AlertDialog.Builder(this)
.setTitle("这是标题")
.setMessage("有多个按钮")
.setIcon(R.mipmap.ic_launcher)
.setPositiveButton("确定", new DialogInterface.OnClickListener() {//添加"Yes"按钮
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "这是确定按钮", Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {//添加取消
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "这是取消按钮", Toast.LENGTH_SHORT).show();
}
})
.setNeutralButton("普通按钮", new DialogInterface.OnClickListener() {//添加普通按钮
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "这是普通按钮按钮", Toast.LENGTH_SHORT).show();
}
})
.create();
alertDialog2.show();
3.一个列表
setItems 里面写列表数据
final String[] items3 = new String[]{"苍老湿", "小泽老湿", "波多野结衣老湿", "吉泽明步老湿"};//创建item
AlertDialog alertDialog3 = new AlertDialog.Builder(this)
.setTitle("选择您喜欢的老湿")
.setIcon(R.mipmap.ic_launcher)
.setItems(items3, new DialogInterface.OnClickListener() {//添加列表
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "点的是：" + items3[i], Toast.LENGTH_SHORT).show();
}
})
.create();
alertDialog3.show();
4.单选列表
setSingleChoiceItems 单选框列表
final String[] items4 = new String[]{"苍老湿", "小泽老湿", "波多野结衣老湿", "吉泽明步老湿"};//创建item
AlertDialog alertDialog4 = new AlertDialog.Builder(this)
.setTitle("选择您喜欢的老湿")
.setIcon(R.mipmap.ic_launcher)
.setSingleChoiceItems(items4, 0, new DialogInterface.OnClickListener() {//添加单选框
@Override
public void onClick(DialogInterface dialogInterface, int i) {
index = i;
}
})
.setPositiveButton("确定", new DialogInterface.OnClickListener() {//添加"Yes"按钮
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "这是确定按钮" + "点的是：" + items4[index], Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {//添加取消
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "这是取消按钮", Toast.LENGTH_SHORT).show();
}
})
.create();
alertDialog4.show();
5.多选列表
setMultiChoiceItems 多选框
final String[] items5 = new String[]{"苍老湿", "小泽老湿", "波多野结衣老湿", "吉泽明步老湿"};//创建item
final boolean[] booleans = {true, true, false, false};
AlertDialog alertDialog5 = new AlertDialog.Builder(this)
.setTitle("选择您喜欢的老湿")
.setIcon(R.mipmap.ic_launcher)
.setMultiChoiceItems(items5, booleans, new DialogInterface.OnMultiChoiceClickListener() {//创建多选框
@Override
public void onClick(DialogInterface dialogInterface, int i, boolean b) {
booleans[i] = b;
}
})
.setPositiveButton("确定", new DialogInterface.OnClickListener() {//添加"Yes"按钮
@Override
public void onClick(DialogInterface dialogInterface, int i) {
StringBuilder stringBuilder = new StringBuilder();
for (int a = 0; a < booleans.length; a++) {
if (booleans[a]) {
stringBuilder.append(items5[a] + " ");
}
}
Toast.makeText(AlertDialogActivity.this, "这是确定按钮" + "点的是：" + stringBuilder.toString(), Toast.LENGTH_SHORT).show();
}
})
.setNegativeButton("取消", new DialogInterface.OnClickListener() {//添加取消
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "这是取消按钮", Toast.LENGTH_SHORT).show();
}
})
.create();
alertDialog5.show();
6.setAdapter的用法
final String[] items6 = new String[]{"苍老湿", "小泽老湿", "波多野结衣老湿", "吉泽明步老湿"};//创建item
AlertDialog alertDialog6 = new AlertDialog.Builder(this)
.setTitle("选择您喜欢的老湿")
.setIcon(R.mipmap.ic_launcher)
.setAdapter(new ArrayAdapter(AlertDialogActivity.this, R.layout.item, R.id.tv, items6), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
Toast.makeText(AlertDialogActivity.this, "点的是：" + items6[i], Toast.LENGTH_SHORT).show();
}
})
.create();
alertDialog6.show();
7.自定义view的用法
final AlertDialog.Builder alertDialog7 = new AlertDialog.Builder(this);
View view1 = View.inflate(this, R.layout.activity_alter_dialog_setview, null);
final EditText et = view1.findViewById(R.id.et);
Button bu = view1.findViewById(R.id.button);
alertDialog7
.setTitle("Login")
.setIcon(R.mipmap.ic_launcher)
.setView(view1)
.create();
final AlertDialog show = alertDialog7.show();
bu.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(AlertDialogActivity.this, "电话" + et.getText().toString(), Toast.LENGTH_SHORT).show();
show.dismiss();
}
});
8.自定义view的用法透明背景
public void showCaptainCarTimeAlertDialog(final Context context, String intro, int time) {
AlertDialog.Builder builder = new AlertDialog
.Builder(context, R.style.dialogNoBg);
View contentView = View.inflate(context, R.layout.team_pop, null);
builder.setView(contentView);
builder.setCancelable(false);
final AlertDialog dialogTime = builder.create();
dialogTime.show();
Button bottomConfirm = contentView.findViewById(R.id.bottom_confirm);
Button bottomCancel = contentView.findViewById(R.id.bottom_cancel);
TextView tvTitie = contentView.findViewById(R.id.tv_titie);
TextView tvMess = contentView.findViewById(R.id.tv_mess);
LinearLayout ll = contentView.findViewById(R.id.ll);
final TextView tvTime = contentView.findViewById(R.id.tv_time);
// tvTitie.setText(title);
tvMess.setText(intro);
final LinearLayout clPop = contentView.findViewById(R.id.cl_pop);
LinearLayout.LayoutParams linearParams_tvMess = (LinearLayout.LayoutParams) tvMess.getLayoutParams(); //
linearParams_tvMess.topMargin = dp2px(context, 40);
tvMess.setLayoutParams(linearParams_tvMess);//使设置好的布局参数应用到控件
LinearLayout.LayoutParams linearParams_tvTime = (LinearLayout.LayoutParams) tvTime.getLayoutParams(); //
linearParams_tvTime.topMargin = dp2px(context, 18);
tvTime.setLayoutParams(linearParams_tvTime);//使设置好的布局参数应用到控件
LinearLayout.LayoutParams linearParams_ll = (LinearLayout.LayoutParams) ll.getLayoutParams(); //
linearParams_ll.topMargin = dp2px(context, 12);
tvTime.setLayoutParams(linearParams_ll);//使设置好的布局参数应用到控件
FrameLayout.LayoutParams linearParams_clPop = (FrameLayout.LayoutParams) clPop.getLayoutParams(); //
linearParams_clPop.height = dp2px(context, 400);
linearParams_clPop.width = dp2px(context, 574);
clPop.setLayoutParams(linearParams_clPop);//使设置好的布局参数应用到控件
//倒计时
final CountDownTimer mCountDownTimer = new CountDownTimer(time, 1000) {
@Override
public void onTick(long millisUntilFinished) {
tvTime.setText(millisUntilFinished / 1000 + "s");
}
@Override
public void onFinish() {
if (dialogTime != null) {
tvTime.setText("0s");
dialogTime.dismiss();
}
}
};
mCountDownTimer.start();
bottomCancel.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dialogTime.dismiss();
}
});
bottomConfirm.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//确定
dialogTime.dismiss();
}
});
dialogTime.setOnDismissListener(new DialogInterface.OnDismissListener() {
@Override
public void onDismiss(DialogInterface dialog) {
if (mCountDownTimer != null) {
mCountDownTimer.cancel();
}
}
});
}
public static int dp2px(Context context, float dpVal) {
float scale = context.getResources().getDisplayMetrics().density;
return (int) (dpVal * scale + 0.5f);
// return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
// dpVal, context.getResources().getDisplayMetrics());
}
@android:color/transparent
true
true
@null
@null
true
true
Window弹框和activity弹框将在另外的文章中说明。
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