Android之AlertDialog Demo（20190115）
android.support.v7.app.AlertDialog 的使用
简单的AlertDialog
public void showSimpleDialog(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setIcon(R.mipmap.ic_launcher);
builder.setTitle("Title");
builder.setMessage("Message");
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", null);
builder.setNeutralButton("中性", null);
builder.show();
}
setView
public void setView(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Title");
builder.setMessage("Message");
builder.setView(new EditText(this));
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", null);
builder.show();
}
setSingleChoiceItems
public void setSingleChoiceItems(View view) {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("单选列表");
builder.setSingleChoiceItems(
new String[]{"11111", "22222", "33333", "44444", "55555"},
0,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
}
);
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", null);
builder.show();
}
setMultiChoiceItems
public void setMultiChoiceItems(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("多选列表");
builder.setMultiChoiceItems(
new String[]{"11111", "22222", "33333", "44444", "55555"},
new boolean[]{false, true, true, false, false},
new DialogInterface.OnMultiChoiceClickListener() {
@Override
public void onClick(DialogInterface dialog, int which, boolean isChecked) {
Toast.makeText(mContext, "which " + which + ", isChecked " + isChecked, Toast.LENGTH_SHORT).show();
}
}
);
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", null);
builder.show();
}
setItems
public void setItems(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Title");
builder.setItems(
new String[]{"11111", "22222", "33333", "44444", "55555"},
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Toast.makeText(mContext, "which " + which, Toast.LENGTH_SHORT).show();
}
}
);
builder.setNegativeButton("取消", null);
builder.setPositiveButton("确定", null);
builder.show();
}
自定义Dialog
public void showMyDialog(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(this);
final AlertDialog alertDialog = builder.create();
//取消外部点击隐藏
alertDialog.setCanceledOnTouchOutside(false);
//设置取消监听
alertDialog.setOnCancelListener(new DialogInterface.OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
Toast.makeText(mContext, "onCancel", Toast.LENGTH_SHORT).show();
}
});
//设置自定义布局
View rootView = getLayoutInflater().inflate(R.layout.view_my_dialog, null);
rootView.findViewById(R.id.tv_cancel).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
alertDialog.cancel();
}
});
alertDialog.setView(rootView);
alertDialog.show();
//设置弹窗参数（注意：弹窗样式修改必须在 dialog.show() 方法后调用，否则不生效）
Window window = alertDialog.getWindow();
if (window != null) {
window.setGravity(Gravity.CENTER);
window.setLayout(WindowManager.LayoutParams.MATCH_PARENT, WindowManager.LayoutParams.WRAP_CONTENT);
//dialog即使没有设置四周的margin也有margin，可以设置给dialog设置个background来解决
window.setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));
//宽度为屏幕宽度的80%
WindowManager.LayoutParams params = window.getAttributes();
params.width = (int) (getWindowManager().getDefaultDisplay().getWidth() * 0.8f);
window.setAttributes(params);
}
}
view_my_dialog.xml
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF">
<TextView
android:id="@+id/tv_title"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginTop="18dp"
android:layout_marginRight="20dp"
android:text="申请加入本课题学习社群"
android:textColor="#2F373F"
android:textSize="20sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<View
android:id="@+id/v_titleDivider"
android:layout_width="47dp"
android:layout_height="5dp"
android:layout_marginTop="10dp"
android:background="#F44336"
app:layout_constraintStart_toStartOf="@+id/tv_title"
app:layout_constraintTop_toBottomOf="@+id/tv_title" />
<TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="10dp"
android:text="姓名"
android:textColor="#2F373F"
android:textSize="15sp"
app:layout_constraintBottom_toBottomOf="@+id/et_name"
app:layout_constraintEnd_toStartOf="@+id/et_name"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/et_name" />
<EditText
android:id="@+id/et_name"
android:layout_width="0dp"
android:layout_height="44dp"
android:layout_marginTop="26dp"
android:layout_marginRight="20dp"
android:background="@drawable/bg_cmty_dialog_et"
android:hint="请输入姓名"
android:inputType="text"
android:paddingLeft="10dp"
android:textColorHint="#6F6F6F"
android:textSize="15sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/tv_name"
app:layout_constraintTop_toBottomOf="@+id/v_titleDivider" />
<TextView
android:id="@+id/tv_phone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="10dp"
android:text="电话"
android:textColor="#2F373F"
android:textSize="15sp"
app:layout_constraintBottom_toBottomOf="@+id/et_phone"
app:layout_constraintEnd_toStartOf="@+id/et_phone"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/et_phone" />
<EditText
android:id="@+id/et_phone"
android:layout_width="0dp"
android:layout_height="44dp"
android:layout_marginTop="20dp"
android:layout_marginRight="20dp"
android:background="@drawable/bg_cmty_dialog_et"
android:hint="请输入手机号码"
android:inputType="phone"
android:paddingLeft="10dp"
android:textColorHint="#6F6F6F"
android:textSize="15sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/tv_phone"
app:layout_constraintTop_toBottomOf="@+id/et_name" />
<TextView
android:id="@+id/tv_remark"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="10dp"
android:text="备注"
android:textColor="#2F373F"
android:textSize="15sp"
app:layout_constraintEnd_toStartOf="@+id/et_remark"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="@+id/et_remark" />
<EditText
android:id="@+id/et_remark"
android:layout_width="0dp"
android:layout_height="70dp"
android:layout_marginTop="20dp"
android:layout_marginRight="20dp"
android:background="@drawable/bg_cmty_dialog_et"
android:gravity="start|top"
android:hint="请输入备注"
android:inputType="text"
android:paddingLeft="10dp"
android:paddingTop="10dp"
android:textColorHint="#6F6F6F"
android:textSize="15sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="@+id/tv_remark"
app:layout_constraintTop_toBottomOf="@+id/et_phone" />
<TextView
android:id="@+id/tv_cancel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:layout_marginTop="30dp"
android:layout_marginBottom="8dp"
android:padding="10dp"
android:text="取消"
android:textColor="#6F6F6F"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/et_remark" />
<View
android:layout_width="53dp"
android:layout_height="53dp"
android:background="@drawable/bg_cmty_dialog_round"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
<TextView
android:id="@+id/tv_ok"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginRight="15dp"
android:layout_marginBottom="8dp"
android:padding="10dp"
android:text="申请加入"
android:textColor="#2F373F"
android:textSize="16sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent" />
</android.support.constraint.ConstraintLayout>
网友评论