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qianlq
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🍀 feat(进程内服务):提供进程内服务
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6 files changed

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-4
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6 files changed

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‎app/src/main/AndroidManifest.xml

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</intent-filter>
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</activity>
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<activity android:name=".chapter7.ServiceActivity">
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<intent-filter>
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<action android:name="android.intent.action.VIEW" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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<provider
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android:name=".chapter6.providers.PeopleProvider"
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android:authorities="com.coderqian.chapter6.providers.PeopleProvider"
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android:authorities="com.coderqian.chapter6.providers.StudentProvider"
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android:exported="true" />
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<service android:name=".chapter7.service.CompareService" />
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</application>
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</manifest>

‎app/src/main/java/com/coderqian/MainActivity.java

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@@ -20,7 +20,8 @@ public class MainActivity extends EuclidActivity {
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"com.coderqian.chapter3.Tab2Activity,com.coderqian.chapter3.DialogActivity,com.coderqian.chapter3.ExpandableList2Activity,com.coderqian.chapter3.Launcher2Activity,com.coderqian.chapter3.List2Activity,com.coderqian.chapter3.Preference2Activity",
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"com.coderqian.chapter4.FragmentActivity,com.coderqian.chapter4.Fragment2Activity,com.coderqian.chapter4.IntentActivity,com.coderqian.chapter4.AnimatorActivity",
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"com.coderqian.chapter5.TweenActivity,com.coderqian.chapter5.FrameActivity,com.coderqian.chapter5.LeafLoadingActivity",
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"com.coderqian.chapter6.SQLiteActivity,com.coderqian.chapter6.ResolverActivity,com.coderqian.chapter6.StudentActivity", "", "", ""};
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"com.coderqian.chapter6.SQLiteActivity,com.coderqian.chapter6.ResolverActivity,com.coderqian.chapter6.StudentActivity",
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"com.coderqian.chapter7.ServiceActivity", "", ""};
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@Override
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protected void onCreate(Bundle savedInstanceState) {

‎app/src/main/java/com/coderqian/chapter7/ServiceActivity.java

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package com.coderqian.chapter7;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.Handler;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.Button;
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import android.widget.EditText;
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import android.widget.TextView;
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import com.coderqian.R;
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import com.coderqian.chapter7.service.CompareService;
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/**
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* @author qianliqing
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* @date 2018/11/7 9:16 AM
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* email: [email protected]
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*/
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public class ServiceActivity extends AppCompatActivity {
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public static int maxNum;
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public static Handler handler = new Handler();
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private static TextView result;
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private Button compare;
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private Button reset;
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private EditText one;
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private EditText two;
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public static void updateGui(int refreshDouble) {
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maxNum = refreshDouble;
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handler.post(RefreshLable);
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}
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public static Runnable RefreshLable = new Runnable() {
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public void run() {
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result.setText(String.valueOf(maxNum));
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}
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};
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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final Bundle bundle = new Bundle();
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_service);
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final Intent intent = new Intent(ServiceActivity.this, CompareService.class);
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result = (TextView) findViewById(R.id.result);
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compare = (Button) findViewById(R.id.compare);
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reset = (Button) findViewById(R.id.reset);
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one = (EditText) findViewById(R.id.one);
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two = (EditText) findViewById(R.id.two);
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compare.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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bundle.putString("one", one.getText().toString());
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bundle.putString("two", two.getText().toString());
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intent.putExtras(bundle);
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startService(intent);
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}
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});
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reset.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View view) {
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one.setText(null);
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two.setText(null);
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result.setText(null);
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}
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});
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}
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}

‎app/src/main/java/com/coderqian/chapter7/service/CompareService.java

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package com.coderqian.chapter7.service;
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import android.app.Service;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.IBinder;
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import android.support.annotation.Nullable;
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import com.coderqian.chapter7.ServiceActivity;
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/**
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* @author qianliqing
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* @date 2018/11/7 10:21 AM
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* email: [email protected]
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*/
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public class CompareService extends Service {
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private Thread thread;
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Bundle bundle;
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int one = 0, two = 0;
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@Nullable
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@Override
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public IBinder onBind(Intent intent) {
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return null;
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}
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public void onCreate() {
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super.onCreate();
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thread = new Thread(null, backgroundWork, "workThread");
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}
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public void onStart(Intent intent, int startId) {
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super.onStart(intent, startId);
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bundle = intent.getExtras();
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String c1 = bundle.getString("one");
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String c2 = bundle.getString("two");
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if (!c1.equals("") && !c2.equals("")) {
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one = Integer.parseInt(c1);
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two = Integer.parseInt(c2);
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}
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if (!thread.isAlive()) {
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thread.start();
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}
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}
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private Runnable backgroundWork = new Runnable() {
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@Override
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public void run() {
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int randomDouble = IntCompare(one, two);
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ServiceActivity.updateGui(randomDouble);
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stopSelf();
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}
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};
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int IntCompare(int a, int b) {
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return a >= b ? a : b;
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}
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}

‎app/src/main/res/layout/activity_service.xml

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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:orientation="vertical">
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:orientation="horizontal">
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<TextView
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android:id="@+id/text1"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="第一个整数 " />
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<EditText
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android:id="@+id/one"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:hint="请输入第一个数"
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android:selectAllOnFocus="true" />
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</LinearLayout>
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:orientation="horizontal">
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="第二个整数 " />
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<EditText
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android:id="@+id/two"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:hint="请输入第二个数"
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android:selectAllOnFocus="true" />
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</LinearLayout>
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:orientation="horizontal">
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<TextView
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="最大的整数 " />
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<TextView
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android:id="@+id/result"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content" />
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</LinearLayout>
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<LinearLayout
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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android:orientation="horizontal">
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<Button
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android:id="@+id/compare"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="比较" />
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<Button
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android:id="@+id/reset"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="复原" />
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</LinearLayout>
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</LinearLayout>

‎app/src/main/res/values/strings.xml

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<item>练习Fragment、Intent和各种资源的使用</item>
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<item>实现几种绘图和动画效果</item>
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<item>建立SQLite数据库和表，封装访问方法</item>
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<item>暂无</item>
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<item>简易网络聊天室应用</item>
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<item>暂无</item>
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<item>暂无</item>
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</string-array>
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<item>新建一个项目，练习Fragment、Intent和各种资源的使用</item>
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<item>新建一个项目，练习各种资源的使用，并实现几种绘图和动画效果</item>
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<item>建立一个ContentProvider对该数据库的访问进行封装，并提供访问接口</item>
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<item>暂无</item>
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<item>建立一个进程内服务，实现基于Socket编程的简易网络聊天室应用</item>
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<item>暂无</item>
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<item>暂无</item>
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</string-array>
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<item>1、参照chapter4、chapter5、chapter6实验手册，完成上机实验。\n2、新建一个项目，练习Fragment、Intent和各种资源的使用。</item>
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<item>1、参照chapter6、chapter7实验手册，完成上机实验。\n2、新建一个项目，练习各种资源的使用，并实现几种绘图和动画效果。</item>
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<item>1、参照chapter8、chapter9实验手册，完成上机实验。\n2、建立一个SQLite数据库，并建立至少一个表，向表内添加一些数据。建立一个ContentProvider对该数据库的访问进行封装，并提供访问接口。开发一个测试应用，能够通过ContentResolver对前一应用的数据库进行增删改查。</item>
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<item>暂无</item>
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<item>1、参照chapter10、chapter11、chapter12、chapter13实验手册，完成上机实验。\n2、编程建立一个进程内服务，服务提供int compare(int, int)函数，输入两个整数，输出较大的整数，添加一个Activity，与该Service绑定，并能够调用该Service中的compare函数，显示输出结果。\n3、基于Socket编程实现一个简易网络聊天室应用（包括服务器端和Android客户端）。</item>
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<item>暂无</item>
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<item>暂无</item>
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</string-array>

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