拨打电话
拨打电话功能相信大家都用过，拨打电话有两个界面，一个是打电话界面，一个是拨号界面，现在实现一下：
1、添加权限
<uses-permission android:name="android.permission.CALL_PHONE" />
android 6.0需要动态设置权限
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
//在这里面向系统请求权限,如果没有在这里面处理,不会执行下面的方法了
//这里就是向系统请求权限了,这里我还做了一个判断. sdk是M(M = 23 android L)才做这个请求,否则就不做.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{"android.permission.CALL_PHONE"}, 111);
}
return;
}
2、跳转到拨号页面
//用intent启动拨打电话
Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + "15224778580");
if (ActivityCompat.checkSelfPermission(ContactActivity.this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
this.startActivity(intent);
}
**3、立即拨打 **
//用intent启动拨打电话
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:" + "15224778580");
if (ActivityCompat.checkSelfPermission(ContactActivity.this, Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
this.startActivity(intent);
上面代码是android6.0动态权限，当设置 targetSdkVersion 23时，就需要这样添加权限。
打开qq聊天界面
打开qq界面就没有拨打电话那么麻烦，不用添加什么权限，实现方法如下：
String url = "mqqwpa://im/chat?chat_type=wpa&uin=1548602276";
startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
发送邮件
Uri uri = Uri.parse("mailto:weiwei_534@163.com");
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
startActivity(intent);
在此记录以下，方便日后使用！
