android_9 Intent 基础
16lz
2021-01-23
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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