从零开始学android -- dialog

Posted 2020-10-05 从Android出发

先看个效果图

 

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="复选对话框"
         />
    <Button
        android:id="@+id/button2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="加载对话框"
         />
    <Button
        android:id="@+id/button3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="显示进度的加载对话框"
         />

    <Button
        android:id="@+id/button4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="推荐创建对话框的方式创建对话框"/>
</LinearLayout>

DialogActivity.class

package zou.study.com.myfirstapp;

import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.SystemClock;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Toast;
import zou.study.com.fragment.EditNameDialogFragment;

public class DialogActivity extends AppCompatActivity implements View.OnClickListener{

    String[] items = {"Google","Apple","Microsoft"};
    boolean[] itemChecked = new boolean[items.length];

    ProgressDialog progressDialog;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        initView();
    }

    private void initView() {
        findViewById(R.id.button1).setOnClickListener(this);
        findViewById(R.id.button2).setOnClickListener(this);
        findViewById(R.id.button3).setOnClickListener(this);
        findViewById(R.id.button4).setOnClickListener(this);
    }

    @Override
    public void onClick(View v) {

        switch (v.getId()){
            case R.id.button1:  //普通的复选对话框
                showDialog(1);
                break;
            case R.id.button2:  //进度对话框
                final ProgressDialog dialog = ProgressDialog.show(this,"Do something","Please wait...");
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        SystemClock.sleep(5000);
                        dialog.dismiss();
                    }
                }).start();
                break;
            case R.id.button3:  //带进度调的对话框
                showDialog(2);
                progressDialog.setProgress(0);
                new Thread(new Runnable() {
                    @Override
                    public void run() {
                        for (int i = 0;i <= 15;i++){
                            SystemClock.sleep(1000);
                            progressDialog.incrementProgressBy(100/15);
                        }
                        progressDialog.dismiss();
                    }
                }).start();
                break;
            case R.id.button4: //采用android 3.0后推荐的创建dialog方式 DialogFragment 这里只是简单用法，想要了解更多请自己google
                EditNameDialogFragment editNameDialog = new EditNameDialogFragment();
                editNameDialog.show(getFragmentManager(), "EditNameDialog");
                break;
        }
    }

    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id){
            case 1:
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.setIcon(R.mipmap.ic_launcher);
                builder.setTitle("标题");
                builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(getBaseContext(),"OK clicked",Toast.LENGTH_SHORT).show();
                    }
                });
                builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(getBaseContext(),"cancel clicked",Toast.LENGTH_SHORT).show();
                    }
                });
                builder.setMultiChoiceItems(items, itemChecked, new DialogInterface.OnMultiChoiceClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                        Toast.makeText(getBaseContext(),items[which] + (isChecked?"checked!":"unchecked!"),Toast.LENGTH_SHORT).show();
                    }
                });
                return builder.create();
            case 2:
                progressDialog = new ProgressDialog(this);
                progressDialog.setIcon(R.mipmap.ic_launcher);
                progressDialog.setTitle("Downloading files...");
                progressDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
                progressDialog.setButton(DialogInterface.BUTTON_POSITIVE, "OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(getBaseContext(),"OK clicked",Toast.LENGTH_SHORT).show();
                    }
                });
                progressDialog.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Toast.makeText(getBaseContext(),"cancel clicked",Toast.LENGTH_SHORT).show();
                    }
                });
                return progressDialog;
        }
        return null;
    }
}

EditNameDialogFragment

package zou.study.com.fragment;

import android.app.DialogFragment;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;

import zou.study.com.myfirstapp.R;


public class EditNameDialogFragment extends DialogFragment {
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE); //去掉action

        return inflater.inflate(R.layout.fragment_dialog,container);
    }
}

fragment_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <TextView
        android:id="@+id/id_label_your_name"
        android:layout_width="wrap_content"
        android:layout_height="32dp"
        android:gravity="center_vertical"
        android:text="Your name:" />

    <EditText
        android:id="@+id/id_txt_your_name"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/id_label_your_name"
        android:imeOptions="actionDone"
        android:inputType="text" />

    <Button
        android:id="@+id/id_sure_edit_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_below="@id/id_txt_your_name"
        android:text="ok" />

</RelativeLayout>

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