知识点
1:安卓6.0以上的版本如何获取拨打电话和发送短信的“权限”
2.如何进入手机通讯录并返回联系号码
3.如何实现发送短信的功能
//实现拨打电话功能的Activitypackage com.example.administrator.phone;import android.Manifest;import android.app.Activity;import android.content.Intent;import android.content.pm.PackageManager;import android.database.Cursor;import .Uri;import android.os.Build;import android.provider.ContactsContract;import android.provider.Settings;import android.support.v4.app.ActivityCompat;import android.support.v4.content.ContextCompat;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.text.TextUtils;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity {private static final int MY_PERMISSIONS_REQUEST_CALL_PHONE = 1;private Button btn_dial;private EditText et_number;private Button ml_btn;private Button ss_btn;private static final int PICK_CONTACT = 1;private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 2;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);// 找到控件et_number = (EditText) findViewById(R.id.number_et);btn_dial = (Button) findViewById(R.id.dial_btn);ml_btn=findViewById(R.id.ml_btn);ss_btn=findViewById(R.id.ss_btn);ss_btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Intent intent=new Intent(MainActivity.this,ActivityB.class);intent.putExtra("number",et_number.getText().toString());//启动Activity BstartActivity(intent);//结束MainActivityMainActivity.this.finish();}});ml_btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {selectConnection();}});// 给按钮设置监听（点击事件）btn_dial.setOnClickListener(new View.OnClickListener() {// 匿名内部类// 按钮点击时回调@Overridepublic void onClick(View view) {// 检查是否获得了权限（Android6.0运行时权限）if (ContextCompat.checkSelfPermission(MainActivity.this,Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED){// 没有获得授权，申请授权if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this,Manifest.permission.CALL_PHONE)) {// 返回值：//如果app之前请求过该权限,被用户拒绝, 这个方法就会返回true.//如果用户之前拒绝权限的时候勾选了对话框中”Don’t ask again”的选项,那么这个方法会返回false.//如果设备策略禁止应用拥有这条权限, 这个方法也返回false.// 弹窗需要解释为何需要该权限，再次请求授权Toast.makeText(MainActivity.this, "请授权！", Toast.LENGTH_LONG).show();// 帮跳转到该应用的设置界面，让用户手动授权Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);Uri uri = Uri.fromParts("package", getPackageName(), null);intent.setData(uri);startActivity(intent);}else{// 不需要解释为何需要该权限，直接请求授权ActivityCompat.requestPermissions(MainActivity.this,new String[]{Manifest.permission.CALL_PHONE},MY_PERMISSIONS_REQUEST_CALL_PHONE);}}else {// 已经获得授权，可以打电话CallPhone();}}});}private void CallPhone() {String number = et_number.getText().toString();if (TextUtils.isEmpty(number)) {// 提醒用户// 注意：在这个匿名内部类中如果用this则表示是View.OnClickListener类的对象，// 所以必须用MainActivity.this来指定上下文环境。Toast.makeText(MainActivity.this, "号码不能为空！", Toast.LENGTH_SHORT).show();} else {// 拨号：激活系统的拨号组件Intent intent = new Intent(); // 意图对象：动作 + 数据intent.setAction(Intent.ACTION_CALL); // 设置动作Uri data = Uri.parse("tel:" + number); // 设置数据intent.setData(data);startActivity(intent); // 激活Activity组件}}// 处理权限申请的回调@Overridepublic void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {switch (requestCode){case MY_PERMISSIONS_REQUEST_CALL_PHONE: {if (grantResults.length > 0&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {// 授权成功，继续打电话CallPhone();} else {// 授权失败！Toast.makeText(this, "授权失败！", Toast.LENGTH_LONG).show();}break;}}}private void selectConnection() {Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);startActivityForResult(intent, PICK_CONTACT);}@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {switch (requestCode) {case PICK_CONTACT:Intent mIntent;mIntent = data;if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) {//申请授权，第一个参数为要申请用户授权的权限；第二个参数为requestCode 必须大于等于0，主要用于回调的时候检测，匹配特定的onRequestPermissionsResult。//可以从方法名requestPermissions以及第二个参数看出，是支持一次性申请多个权限的，系统会通过对话框逐一询问用户是否授权。requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, PERMISSIONS_REQUEST_READ_CONTACTS);}else{//如果该版本低于6.0，或者该权限已被授予，它则可以继续读取联系人。getContacts(data);}break;default:super.onActivityResult(requestCode, resultCode, data);break;}}private void getContacts(Intent data) {if (data == null) {return;}Uri contactData = data.getData();if (contactData == null) {return;}String name = "";String phoneNumber = "";Uri contactUri = data.getData();Cursor cursor = getContentResolver().query(contactUri, null, null, null, null);if (cursor.moveToFirst()) {name = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER));String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));if (hasPhone.equalsIgnoreCase("1")) {hasPhone = "true";} else {hasPhone = "false";}if (Boolean.parseBoolean(hasPhone)) {Cursor phones = getContentResolver().query(monDataKinds.Phone.CONTENT_URI,null,monDataKinds.Phone.CONTACT_ID+ " = " + id, null, null);while (phones.moveToNext()) {phoneNumber = phones.getString(phones.getColumnIndex(monDataKinds.Phone.NUMBER));}phones.close();}cursor.close();et_number.setText(phoneNumber);}}}
//实现发送短信功能的Activitypackage com.example.administrator.phone;import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.telephony.SmsManager;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;import java.util.List;public class ActivityB extends Activity {EditText ss_number_et;Button cs_btn;Button ss_btn;EditText ss_content_et;protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_b);ss_number_et=findViewById(R.id.ss_number_et);cs_btn=findViewById(R.id.cs_btn);ss_btn=findViewById(R.id.ss_btn);ss_content_et=findViewById(R.id.ss_content_et);ss_btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {String message = ss_content_et.getText().toString();//短信内容String phoneNo = ss_number_et.getText().toString();//电话号码Log.i("Send SMS", "");try {SmsManager smsManager = SmsManager.getDefault();smsManager.sendTextMessage(phoneNo, null, message, null, null);Toast.makeText(getApplicationContext(), "SMS sent.",Toast.LENGTH_LONG).show();} catch (Exception e) {Toast.makeText(getApplicationContext(),"SMS faild, please try again.",Toast.LENGTH_LONG).show();}}});cs_btn.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {Intent intent=new Intent(ActivityB.this,MainActivity.class);startActivity(intent);ActivityB.this.finish();}});Intent i=getIntent();String number=i.getStringExtra("number");if(number==null){ss_number_et.setText("请输入手机号码");}else{ss_number_et.setText(number);}}}
运行结果： 初始界面
进入通讯录界面
获取联系人返回主界面
拨打电话界面
编辑短信界面
参考博客
/u010356768/article/details/79352323
权侵删
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