Android(3)

標籤：android   style   blog   class   code   java   

1.電話撥號器：

activity_main.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=".MainActivity" >   <EditText        android:id="@+id/editText1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:inputType="phone" >    </EditText>   <Button       android:id="@+id/button1"       android:layout_width="wrap_content"       android:layout_height="wrap_content"       android:layout_alignParentRight="true"       android:layout_below="@+id/editText1"       android:text="撥打到電話" />//注意：如果想讓這個XML檔案沒有驚嘆號，則需要在strings.xml配置</RelativeLayout>

MainActivity.java

package com.csdn.duil;import android.net.Uri;import android.os.Bundle;import android.app.Activity;import android.content.Intent;import android.text.InputFilter.LengthFilter;import android.text.TextUtils;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity {/** * 點擊事件方法 * 1.建立一個內部類定義點擊事件 * 2.採用匿名內部類建立點擊事件 * 3.介面裡面未實現的方法（this）常見 * 4.在布局檔案裡面綁定一個點擊的方法 */private Button btn;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        //載入布局檔案        setContentView(R.layout.activity_main);        //尋找到按鈕        btn=(Button)this.findViewById(R.id.button1);        btn.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View arg0) {EditText text=(EditText) MainActivity.this.findViewById(R.id.editText1);//擷取文本去空格    String number=text.getText().toString().trim();        //判斷number是否是空    if(TextUtils.isEmpty(number)){    Toast.makeText(MainActivity.this,"號碼不可為空",Toast.LENGTH_SHORT).show();    return;    }            //意圖  想幹一件什麼事情    Intent intent=new Intent();    //打人    intent.setAction(Intent.ACTION_CALL);    //url統一資源定位器    uri更厲害，統一資源識別項    intent.setData(Uri.parse("tel:"+number));        startActivity(intent);}});    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    }

2.短些發送器：

activity_main.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=".MainActivity" >    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/editText2"        android:layout_below="@+id/editText2"        android:layout_marginTop="21dp"        android:text="發送" />    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/editText1"        android:layout_alignParentTop="true"        android:text="@string/please_input_number"        android:textAppearance="?android:attr/textAppearanceLarge" />    <EditText        android:id="@+id/editText1"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_below="@+id/textView1"        android:layout_marginTop="23dp"        android:ems="10"      />    <TextView        android:id="@+id/textView2"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignLeft="@+id/editText1"        android:layout_alignRight="@+id/editText1"        android:layout_below="@+id/editText1"        android:layout_marginTop="25dp"        android:text="請輸入內容"        android:textAppearance="?android:attr/textAppearanceLarge"        android:textColor="#ff0000" />    <EditText        android:lines="5"        android:id="@+id/editText2"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_below="@+id/textView2"        android:layout_marginTop="25dp"        android:ems="10"        android:inputType="textMultiLine" >        <requestFocus />    </EditText></RelativeLayout>

MainActivity.java

package com.csdn.sms;import java.util.ArrayList;import android.os.Bundle;import android.app.Activity;import android.telephony.SmsManager;import android.text.TextUtils;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity implements OnClickListener {    private Button btn_send;    private EditText text1;    private EditText text2;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        text1=(EditText) this.findViewById(R.id.editText1);        text2=(EditText) this.findViewById(R.id.editText2);                btn_send=(Button) this.findViewById(R.id.button1);        btn_send.setOnClickListener(this);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.main, menu);        return true;    }@Overridepublic void onClick(View v) {switch (v.getId()) {case R.id.button1:String number=text1.getText().toString().trim();String context=text2.getText().toString().trim();if(TextUtils.isEmpty(context)||TextUtils.isEmpty(number)){Toast.makeText(this, "電話號碼或者內容不可為空",Toast.LENGTH_SHORT).show();return;}else{SmsManager smsManager=SmsManager.getDefault();//多媒體訊息//smsManager.sendTextMessage(number,null, context, null, null);//發送多條簡訊ArrayList<String> contents=smsManager.divideMessage(context);for(String str:contents){smsManager.sendTextMessage(number,null, str, null, null);}}break;default:break;}}    }