android_九 Intent 基础

android_9 Intent 基础

mail.xml：

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:orientation="vertical" >    <Button        android:id="@+id/save"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="保存" />     <Button        android:id="@+id/submit"        android:layout_width="wrap_content"package com.mhm.button.activity;import android.app.Activity;import android.content.Intent;import android.net.Uri;import android.os.Bundle;import android.view.Gravity;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.Toast;public class ButtonDemoActivity extends Activity {    /** Called when the activity is first created. */private Button btn_save;private Button btn_submit;private Button btn_call;private Button btn_sms;    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        btn_save = (Button)findViewById(R.id.save);        btn_submit = (Button)findViewById(R.id.submit);        btn_call = (Button)findViewById(R.id.btn_call);        btn_sms = (Button)findViewById(R.id.btn_sms);                btn_save.setOnClickListener(listener);        btn_submit.setOnClickListener(listener);        btn_call.setOnClickListener(listener);        btn_sms.setOnClickListener(listener);    }        private OnClickListener listener = new OnClickListener() {public void onClick(View v) {Button b = (Button)v;switch (b.getId()) {case R.id.save:Toast t = Toast.makeText(getApplicationContext(), "保存成功~", Toast.LENGTH_SHORT);t.setGravity(Gravity.CENTER_VERTICAL, 0, -100);t.show();break;case R.id.submit:t = Toast.makeText(getApplicationContext(), "提交成功~", Toast.LENGTH_SHORT);t.setGravity(Gravity.CENTER_VERTICAL, 0, 100);t.show();break;case R.id.btn_call:Intent intent = new Intent();intent.setAction(Intent.ACTION_CALL);intent.setData(Uri.parse("tel:187********"));startActivity(intent);break;case R.id.btn_sms:intent = new Intent();intent.setAction(Intent.ACTION_SENDTO);intent.setData(Uri.parse("smsto:5554"));intent.putExtra("sms_body", "Hello world");startActivity(intent);break;default:t = Toast.makeText(getApplicationContext(), "按钮成功~", Toast.LENGTH_SHORT);t.setGravity(Gravity.CENTER_VERTICAL, 0, 200);t.show();break;}}};}?        android:layout_height="wrap_content"        android:text="提交" />     <Button        android:id="@+id/btn_call"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="CALL" />     <Button        android:id="@+id/btn_sms"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="MESSAGE" /></LinearLayout>

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拨电话

intent.setData(Uri.parse("tel:187********"));

发消息

intent.putExtra("sms_body", "Hello world");

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使拨号和发短信能通过android的允许

在AndroidManifest.xml中添加，是application的节点下面添加。

<uses-permission android:name="android.permission.CALL_PHONE"/><uses-permission android:name="android.permission.SEND_SMS"/>

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