2019独角兽企业重金招聘Python工程师标准>>> 
自定义自己的Dialog类，通过接口实现dialog上的控件的点击事件
package see.ilifeactivity;
import ilife.see.R;
import android.app.AlertDialog;
import android.content.Context;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class Num_Dialog extends AlertDialog implements OnClickListener{
private Button ok,cancel;
private myDialogListener listener;
public Num_Dialog(Context context, int theme ,myDialogListener listener) {
super(context, theme);
this.listener = listener;
}
public interface myDialogListener{
public void onClik(View View);
}
public void onClick(View v) {
listener.onClik(v);
}
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.number_limit);
init();
}
private void init() {
ok=(Button)findViewById(R.id.ok_btn);
cancel=(Button)findViewById(R.id.cancel_btn);
ok.setOnClickListener(this);
cancel.setOnClickListener(this);
// TODO Auto-generated method stub
}
}
下面的类是调用Dialog类，实现接口
package see.ilifeactivity;
import ilife.see.R;
import see.ilifeactivity.MyDialog.OnDialogClickListener;
import see.ilifeactivity.Num_Dialog.myDialogListener;
import see.mainindex.ui.activity.SlidingActivity;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.Toast;
public class OrganizeActivity extends Activity implements OnDialogClickListener,myDialogListener
{
private Button finish_btn,back;
private ImageView organize_add_img;
private EditText act_name_et,act_time_et,act_address_et,act_type_et,act_number_et,act_info_et;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.organize_act);
init();
}
private void init() {
// TODO Auto-generated method stub
findViews();
finish_btn.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent it = new Intent(OrganizeActivity.this,SlidingActivity.class);
startActivity(it);
}
});
organize_add_img.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MyDialog dialog = new MyDialog(OrganizeActivity.this, R.style.MyDialog);
dialog.setContentView(R.layout.photo_dialog);
dialog.setCanceledOnTouchOutside(true);
dialog.setOnDialogClickListener(OrganizeActivity.this);
//设置点击Dialog外部任意区域关闭Dialog
dialog.show();
}
});
act_number_et.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MyDialog dialog = new MyDialog(OrganizeActivity.this, R.style.MyDialog);
dialog.setContentView(R.layout.number_limit);
dialog.setCanceledOnTouchOutside(true);
dialog.setOnDialogClickListener(OrganizeActivity.this);
//设置点击Dialog外部任意区域关闭Dialog
dialog.show();
}
});
act_type_et=(EditText)findViewById(R.id.act_type_et);
act_type_et.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
final CharSequence[] items = { "娱乐兴趣", "交友联谊", "学术社团","其他" };
// 创建builder
AlertDialog.Builder builder = new AlertDialog.Builder(
OrganizeActivity.this);
builder.setTitle("请选择活动类型") // 标题
.setIcon(R.drawable.activity_icon) // icon
.setCancelable(false) // 不响应back按钮
.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
act_type_et.setText(items[which]);
Toast.makeText(OrganizeActivity.this,
"选择了" + items[which], Toast.LENGTH_SHORT)
.show();
}
});
builder.setPositiveButton("ok", null);
builder.setNegativeButton("cencel",null);
builder.create().show();
}
});
finish_btn=(Button)findViewById(R.id.finish_btn);
finish_btn.setOnClickListener(new MyListener(this));
act_number_et.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
//调用上面的类
Num_Dialog dialog=new Num_Dialog(OrganizeActivity.this,R.style.MyDialog,new myDialogListener(){
@Override
public void onClik(View v) {
// TODO Auto-generated method stub
switch(v.getId()){
case R.id.ok_btn:
Intent it=new Intent(OrganizeActivity.this,EditActivity.class);
startActivity(it);
break;
case R.id.cancel_btn:
break;
case R.id.num_limit_et:
break;
}
}
});
dialog.show();
}
});
}
@Override
public void OnClick(View v) {
// TODO Auto-generated method stub
int id = v.getId();
switch(id)
{
case R.id.photographing:
Intent getImageByCamera = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(getImageByCamera, 1);
break;
case R.id.local:
Intent getImage = new Intent(Intent.ACTION_GET_CONTENT);
getImage.addCategory(Intent.CATEGORY_OPENABLE);
getImage.setType("image/jpeg");
startActivityForResult(getImage, 0);
break;
case R.id.finish_btn:
}
}
private void findViews(){
finish_btn = (Button)findViewById(R.id.finish_btn);
back = (Button)findViewById(R.id.back);
organize_add_img=(ImageView)findViewById(R.id.org_head_img);
act_name_et=(EditText)findViewById(R.id.act_name_et);
act_time_et=(EditText)findViewById(R.id.act_time_et);
act_address_et=(EditText)findViewById(R.id.act_address_et);
act_type_et=(EditText)findViewById(R.id.act_type_et);
act_number_et=(EditText)findViewById(R.id.number_limit_et);
act_info_et=(EditText)findViewById(R.id.act_info_et);
}
@Override
public void onClik(View View) {
// TODO Auto-generated method stub
}
}
//该类为验证输入框是否为空，且有相应提示
class MyListener extends java.lang.Object implements Button.OnClickListener
{
Activity act;
public MyListener(Activity act)
{
this.act = act;
}
private boolean ValidateEditText(int id, String name)
{ EditText et=(EditText)act.findViewById(id);
String str=et.getText().toString();
if(id!=R.id.act_info_et){
if (isEmpty(str))
{
new AlertDialog.Builder(act)
.setTitle("Android 提示")
.setMessage(name+"不能为空")
.show();
return false;
}
return true;
}
else{
if (isEmpty(str)||tooLong(str))
{
new AlertDialog.Builder(act)
.setTitle("Android 提示")
.setMessage(name+"不能为空也不能多于150字")
.show();
return false;
}
return true;
}
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
if (!ValidateEditText(R.id.act_name_et, "用户名"))
return;
if (!ValidateEditText(R.id.act_time_et, "活动时间"))
return;
if (!ValidateEditText(R.id.act_address_et, "活动地点"))
return;
if (!ValidateEditText(R.id.act_type_et, "活动性质"))
return;
if (!ValidateEditText(R.id.num_limit_et, "活动人数上限"))
return;
if (!ValidateEditText(R.id.act_info_et, "活动简介"))
return;
}
//验证是否为空的方法
public boolean isEmpty(String str) {
if (str == null || str.trim().length() == 0) {
return true;
} else {
return false;
}
}
//此方法为验证简介字数是否大于150字
public boolean tooLong(String str){
if(str.trim().length()>150)
return true;
else
return false;
}
}
dialog的布局文件
number_limit.xml
android:layout_height="fill_parent" >
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="51dp"
android:text="活动人数上限"
android:textAppearance="?android:attr/textAppearanceLarge" />
android:layout_width="210dp"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:hint="不能超过群组人数上限"
android:layout_below="@+id/num_limit_tv" />
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/num_limit_tv"
android:layout_below="@+id/num_limit_et"
android:layout_marginTop="16dp"
android:text="确定" />
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@+id/ok_btn"
android:layout_alignBottom="@+id/ok_btn"
android:layout_marginLeft="24dp"
android:layout_toRightOf="@+id/num_limit_tv"
android:text="取消" />
最后在styles.xml文件中加入以下代码