android 自定义HandlerThread

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blueice 2024-12-29 16:11:30

文章标签 android ide xml 文章分类 Android 移动开发

android 自定义HandlerThread_ide

android 自定义HandlerThread_xml_02

android 自定义HandlerThread_ide_03

Java代码

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    Dialog dialog;

    public void btnClick(View v){
        LayoutInflater inflater = LayoutInflater.from(this);
        View myView = inflater.inflate(R.layout.layout_myself_dialog, null);  //自定义布局
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setView(myView);

        myView.findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                dialog.dismiss();

                Toast.makeText(MainActivity3.this,"点击了确定",Toast.LENGTH_LONG).show();
            }
        });

        dialog = builder.create();
        dialog.show();

    }

}

界面布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/content_main2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.srq.appch5.MainActivity3">

    <Button
        android:id="@+id/btn_open"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="对话框"
        android:layout_centerInParent="true"
        android:onClick="btnClick"
        />

</RelativeLayout>

自定义布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="#fff"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:background="#0e2438"
        android:gravity="center"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="提醒"
            android:textColor="#fff"
            android:textSize="18sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="恭喜您,验证码发送成功"
            android:textColor="#000"
            android:textSize="18sp" />

        <Button
            android:id="@+id/btn"
            android:layout_width="66dp"
            android:layout_height="30dp"
            android:layout_marginTop="10dp"
            android:background="@drawable/btn_selector"
            android:text="确定"
            android:textColor="#fff"
            android:textSize="14sp" />
    </LinearLayout>
</LinearLayout>

AndroidManifest.xml

<activity android:name=".MainActivity3">   //改这里
    <intent-filter>
        <action android:name="android.intent.action.MAIN" />

        <category android:name="android.intent.category.LAUNCHER" />
    </intent-filter>
</activity>

弹出窗

android 自定义HandlerThread_ide_04

android 自定义HandlerThread_xml_05

android 自定义HandlerThread_xml_06

Java代码

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    PopupWindow popup;

    public void btnClick(View v){
        LayoutInflater inflater = LayoutInflater.from(this);
        View myView = inflater.inflate(R.layout.layout_myself_dialog, null);

        popup = new PopupWindow(myView,600,550);  //单位是像素px


        myView.findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                popup.dismiss();

                Toast.makeText(MainActivity3.this,"点击了确定",Toast.LENGTH_LONG).show();
            }
        });

//        popup.showAsDropDown(v);   //下拉式显示方式
        popup.showAtLocation(v, Gravity.CENTER,0,0);  //0是偏移量  //定点弹出

    }

}

自定义布局

<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="#55ffffff"
    >

    <!--android:background="#fff"                不设背景色能看到后面按钮-->


    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:background="#0e2438"
        android:gravity="center"
        android:orientation="horizontal">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="提醒"
            android:textColor="#fff"
            android:textSize="18sp" />
    </LinearLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:orientation="vertical"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="恭喜您,验证码发送成功"
            android:textColor="#000"
            android:textSize="18sp" />

        <Button
            android:id="@+id/btn"
            android:layout_width="66dp"
            android:layout_height="30dp"
            android:layout_marginTop="10dp"
            android:background="@drawable/btn_selector"
            android:text="确定"
            android:textColor="#fff"
            android:textSize="14sp" />
    </LinearLayout>
</LinearLayout>

类似对话框,不抢夺焦点

android 自定义HandlerThread_ide_07

创建新的Java Class -- DialogActivity

public class DialogActivity extends Activity{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        
        setContentView(R.layout.layout_myself_dialog);

        findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();
            }
        });
    }
}

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.srq.appch5">

    <!-- To auto-complete the email text field in the login form with the user's emails -->
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.READ_PROFILE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity3">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        
        <activity android:name=".DialogActivity"
            android:theme="@android:style/Theme.Dialog"/>
        
        <activity android:name=".DetailActivity" />
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main2"
            android:theme="@style/AppTheme.NoActionBar"></activity>
    </application>

</manifest>

java代码

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    public void btnClick(View v){
        //打开活动
        Intent intent = new Intent(this,DialogActivity.class);
        startActivity(intent);   //手动创建要注册
    }

}

布局和自定义布局内容不变

是一种Activity,很像对话框

注:改变风格要适当调整背景色,这里提前设定背景色为白色,否则风格改变,背景变黑色

android 自定义HandlerThread_android_08

日期选择对话框(引用java.until包)

public void btnClick(View v) {
        Calendar c = Calendar.getInstance();
         // 直接创建一个DatePickerDialog对话框实例，并将它显示出来
         new DatePickerDialog(this,
                 // 绑定监听器
                 new DatePickerDialog.OnDateSetListener() {
                     @Override
                     public void onDateSet(DatePicker dp, int year,
                                           int month, int dayOfMonth) {
                         String text = "您选择了：" + year + "年" + (month + 1)
                                 + "月" + dayOfMonth + "日";
                         Toast.makeText(MainActivity7.this, text,
                                 Toast.LENGTH_LONG).show();
                     }
                 }
                 //设置初始日期
                 , c.get(Calendar.YEAR)
                 , c.get(Calendar.MONTH)
                 , c.get(Calendar.DAY_OF_MONTH)).show();
     }

Java完整代码

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    public void btnClick(View v){

        Calendar c = Calendar.getInstance();
        // 直接创建一个DatePickerDialog对话框实例，并将它显示出来
        new DatePickerDialog(this,
                // 绑定监听器
                new DatePickerDialog.OnDateSetListener() {
                    @Override
                    public void onDateSet(DatePicker dp, int year,
                                          int month, int dayOfMonth) {
                        String text = "您选择了：" + year + "年" + (month + 1)
                                + "月" + dayOfMonth + "日";
                        Toast.makeText(MainActivity3.this, text,
                                Toast.LENGTH_LONG).show();
                    }
                }
                //设置初始日期
                , c.get(Calendar.YEAR)
                , c.get(Calendar.MONTH)
                , c.get(Calendar.DAY_OF_MONTH)).show();
    }

}

android 自定义HandlerThread_ide_09

时间选择对话框

public void btnClick(View v) {
        Calendar c = Calendar.getInstance();
         // 创建一个TimePickerDialog实例，并把它显示出来。
         new TimePickerDialog(this,
                 // 绑定监听器
                 new TimePickerDialog.OnTimeSetListener() {
                     @Override
                     public void onTimeSet(TimePicker tp, int hourOfDay,
                                           int minute) {
                         String text = "您选择了：" + hourOfDay + "时" + minute
                                 + "分";
                         Toast.makeText(MainActivity7.this, text,
                                 Toast.LENGTH_LONG).show();
                     }
                 }
                 //设置初始时间
                 , c.get(Calendar.HOUR_OF_DAY)
                 , c.get(Calendar.MINUTE)
                 //true表示采用24小时制
                 , true).show();
     }

Java完整代码

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    public void btnClick(View v){

        Calendar c = Calendar.getInstance();
        // 创建一个TimePickerDialog实例，并把它显示出来。
        new TimePickerDialog(this,
                // 绑定监听器
                new TimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker tp, int hourOfDay,
                                          int minute) {
                        String text = "您选择了：" + hourOfDay + "时" + minute
                                + "分";
                        Toast.makeText(MainActivity3.this, text,
                                Toast.LENGTH_LONG).show();
                    }
                }
                //设置初始时间
                , c.get(Calendar.HOUR_OF_DAY)
                , c.get(Calendar.MINUTE)
                //true表示采用24小时制
                , true).show();
    }

}

android 自定义HandlerThread_android_10

Java代码

public class MainActivity3 extends AppCompatActivity {
    @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main_activity3);    }
     ProgressDialog pd;    public void showProgress(){
         pd = new ProgressDialog(this);
         pd.setTitle("任务执行中");
         pd.setMessage("请稍后...");
         pd.setCancelable(true);   //可取消
         pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);  //默认转圈
         pd.show();
     }    public void btnClick(View v){
         showProgress();
     }}

UI线程不能放耗时操作 → 子线程(转圈实现:Java代码)

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    ProgressDialog pd;

    public void showProgress(){
        pd = new ProgressDialog(this);
        pd.setTitle("任务执行中");
        pd.setMessage("请稍后...");
        pd.setCancelable(true);   //可取消
        pd.setProgressStyle(ProgressDialog.STYLE_SPINNER);  //默认转圈
        pd.show();
    }

    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {  //主线程(UI)
            pd.dismiss();
        }
    };

    public void btnClick(View v){
        showProgress();
        //新建一个子线程
        new Thread(){
            @Override
            public void run() {
                for (int i = 0; i < 3; i++){   //强制阻塞线程,总共耗时3s(人为耗时操作)
                    try {
                        Thread.sleep(1000);   //1000ms
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                handler.sendEmptyMessage(0);  //发送消息  子线程向主线程
            }
        }.start();

    }

}

水平进度条实现(Java代码)

public class MainActivity3 extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main_activity3);

    }

    ProgressDialog pd;

    public void showProgress(){
        pd = new ProgressDialog(this);
        pd.setTitle("任务执行中");
        pd.setMessage("请稍后...");
        pd.setCancelable(true);   //可取消
        pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);  //水平进度条
        pd.setMax(10);
        pd.show();
    }

    Handler handler = new Handler(){
        @Override
        public void handleMessage(Message msg) {  //主线程(UI)
            if (msg.what == 0){
                pd.dismiss();
            }else if (msg.what == 1){
                pd.setProgress(msg.arg1);
            }
        }
    };

    public void btnClick(View v){
        showProgress();
        //新建一个子线程
        new Thread(){
            @Override
            public void run() {
                for (int i = 1; i <= 10; i++){   //强制阻塞线程,总共耗时3s(人为耗时操作)
                    try {
                        Thread.sleep(1000);   //1000ms
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                    Message msg = Message.obtain();
                    msg.arg1 = i;  //把增长的进度放在消息里,携带过去
                    msg.what = 1;
                    handler.sendMessage(msg);  //发送实消息
                }
                handler.sendEmptyMessage(0);  //what = 0;
            }
        }.start();

    }

}

两次点击退出

private long mExitTime;
     @Override
     public void onBackPressed() {        if ((System.currentTimeMillis() - mExitTime) > 2000) {
             Toast.makeText(this, "再按一次退出",
                     Toast.LENGTH_SHORT).show();
             mExitTime = System.currentTimeMillis();
         } else {
             finish();
         }
     }

Java代码(不全,加在最后即可)

private long mExitTime;
@Override
public void onBackPressed() {

    if ((System.currentTimeMillis() - mExitTime) > 2000) {  //退出时间和系统时间的差值在两秒之内,退出
        Toast.makeText(this, "再按一次退出",
                Toast.LENGTH_SHORT).show();
        mExitTime = System.currentTimeMillis();   //大于2s不退出,更新退出时间
    } else {
        finish();
    }
}

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