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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>


拨电话

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

发消息

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



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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