任务3 理解Task

来源：互联网发布：聊天软件遇见编辑：程序博客网时间：2024/05/17 09:26

运行结果

******拨号界面无法正常显示，怀疑是模拟器没有打电话功能。******

activity_task.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    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=".TaskActivity" >    <Button        android:id="@+id/tosecond"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/call"        android:layout_alignParentTop="true"        android:layout_alignRight="@+id/call"        android:layout_marginTop="52dp"        android:text="@string/ToSecond" />    <Button        android:id="@+id/call"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/tosecond"        android:layout_centerHorizontal="true"        android:layout_marginTop="35dp"        android:text="@string/Call" /></RelativeLayout>

activity_second.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    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=".SecondActivity" >    <Button        android:id="@+id/button1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_centerHorizontal="true"        android:layout_centerVertical="true"        android:text="@string/ToFirst" /></RelativeLayout>

TaskActivity.java

package com.test.task;import android.net.Uri;import android.os.Bundle;import android.content.Intent;  import android.view.Menu;  import android.view.View;  import android.view.View.OnClickListener;  import android.widget.Button;import android.app.Activity;public class TaskActivity extends Activity {private Button button1;      private Button button2;  @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_task); button1 = (Button)findViewById(R.id.tosecond);       button2 = (Button)findViewById(R.id.call);       button1.setOnClickListener(new OnClickListener()       {                      @Override           public void onClick(View arg0)           {               // TODO Auto-generated method stub               Intent intent = new Intent(TaskActivity.this,SecondActivity.class);               startActivity(intent);           }       });       button2.setOnClickListener(new OnClickListener()       {                      @Override           public void onClick(View view)           {               // TODO Auto-generated method stub               Intent intent1=new Intent(Intent.ACTION_DIAL);               intent1.setData(Uri.parse("tel:10086"));               startActivity(intent1);           }                   });  }@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.task, menu);return true;}}

SecondActivity.java

package com.test.task;import android.os.Bundle;import android.view.View;import android.view.View.OnClickListener; import android.app.Activity;import android.content.Intent;import android.view.Menu;import android.widget.Button;public class SecondActivity extends Activity {    private Button button; @Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_second);button = (Button) findViewById(R.id.button1);          button.setOnClickListener(new OnClickListener()          {                            @Override              public void onClick(View arg0)              {                  // TODO Auto-generated method stub                  Intent intent = new Intent(SecondActivity.this,TaskActivity.class);                  startActivity(intent);              }        });  }@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.second, menu);return true;}}

0 0