整理一些常用的关于Activity
电话
Intent.ACTION_DIAL
跳转到拨打电话的页面
Uri data = Uri.parse("tel:" + "15523872***");
intent.setData(data);//指定电话号码
Intent.ACTION_CALL
直接打电话 需要申请权限(android 6.0 后动态申请权限 我用的easyPermission)
联系人
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(Contacts.People.CONTENT_URI);
startActivity(intent);
短信
Uri uri = Uri.parse("smsto:10010");
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
intent.putExtra("sms_body", "Hello");
startActivity(intent);
游览器
Uri uri = Uri.parse("http://www.baidu.com");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
邮件
Intent email = new Intent(android.content.Intent.ACTION_SEND);
email.setType("plain/text");
String emailTitle = "标题";
String emailContent = "内容";
String[] emailReciver = new String[]{"1016762210@qq.com"};
email.putExtra(android.content.Intent.EXTRA_EMAIL, emailReciver);
email.putExtra(android.content.Intent.EXTRA_SUBJECT, emailTitle);
email.putExtra(android.content.Intent.EXTRA_TEXT, emailContent);
startActivity(email);
多媒体 (视屏)
```
Intent intent = new Intent(Intent.ACTION_VIEW);
String path = Environment.getExternalStorageDirectory().getPath()+ "/1.mp4";//该路径可以自定义
File file = new File(path);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "video/*");
startActivity(intent);
```
摄像头
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 0);
系统图库
Intent intent = new Intent(Intent.ACTION_PICK, null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
startActivityForResult(intent, VALUE_PICK_PICTURE);
裁剪图片
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(bitmap, "image/*");
// 下面这个crop=true是设置在开启的Intent中设置显示的VIEW可裁剪
intent.putExtra("crop", "true");
intent.putExtra("scale", true);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
// 裁剪后输出图片的尺寸大小
intent.putExtra("outputX", 250);
intent.putExtra("outputY", 250);
intent.putExtra("return-data", true);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true); // no face detection
startActivityForResult(intent, 0);
网路设置
Intent intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
startActivityForResult(intent, 0);
源码
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Environment;
import android.provider.Contacts;
import android.provider.MediaStore;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import java.io.File;
import java.util.List;
import pub.devrel.easypermissions.AfterPermissionGranted;
import pub.devrel.easypermissions.AppSettingsDialog;
import pub.devrel.easypermissions.EasyPermissions;
public class EveryOpenActivity extends AppCompatActivity implements View.OnClickListener, EasyPermissions.PermissionCallbacks {
Button bt_0;
Button bt_1;
Button bt_2;
Button bt_3;
Button bt_4;
Button bt_5;
Button bt_6;
Button bt_7;
Button bt_8;
Button bt_9;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_every_open);
bt_0 = findViewById(R.id.bt_0);
bt_1 = findViewById(R.id.bt_1);
bt_2 = findViewById(R.id.bt_2);
bt_3 = findViewById(R.id.bt_3);
bt_4 = findViewById(R.id.bt_4);
bt_5 = findViewById(R.id.bt_5);
bt_6 = findViewById(R.id.bt_6);
bt_7 = findViewById(R.id.bt_7);
bt_8 = findViewById(R.id.bt_8);
bt_9 = findViewById(R.id.bt_9);
bt_0.setOnClickListener(this);
bt_1.setOnClickListener(this);
bt_2.setOnClickListener(this);
bt_3.setOnClickListener(this);
bt_4.setOnClickListener(this);
bt_5.setOnClickListener(this);
bt_6.setOnClickListener(this);
bt_7.setOnClickListener(this);
bt_8.setOnClickListener(this);
bt_9.setOnClickListener(this);
}
private void start0() {
// Intent intent = new Intent(Intent.ACTION_DIAL, uri);
// startActivity(intent);
if (EasyPermissions.hasPermissions(this,Manifest.permission.CALL_PHONE)) {
Uri uri = Uri.parse("tel:10010");
Intent intent = new Intent(Intent.ACTION_CALL, uri);
startActivity(intent);
}else {
EasyPermissions.requestPermissions(this, "打电话",1,Manifest.permission.CALL_PHONE);
}
}
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
EasyPermissions.onRequestPermissionsResult(requestCode,permissions,grantResults,this);
}
@Override
public void onPermissionsGranted(int requestCode, @NonNull List<String> perms) {
if (perms.contains(Manifest.permission.CALL_PHONE)){
Uri uri = Uri.parse("tel:10010");
Intent intent = new Intent(Intent.ACTION_CALL, uri);
startActivity(intent);
}
}
@Override
public void onPermissionsDenied(int requestCode, @NonNull List<String> perms) {
if (!EasyPermissions.somePermissionPermanentlyDenied(this, perms)) {
new AppSettingsDialog.Builder(this)
.setRationale("此功能需要" + "电话权限" + "权限,否则无法正常使用,是否打开设置")
.setPositiveButton("是")
.setNegativeButton("否").build().show();
}
}
private void start1(){
Uri uri = Uri.parse("smsto:10010");
Intent intent = new Intent(Intent.ACTION_SENDTO, uri);
intent.putExtra("sms_body", "Hello");
startActivity(intent);
}
private void start2(){
Uri uri = Uri.parse("http://www.baidu.com");
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
startActivity(intent);
}
private void start3(){
Intent email = new Intent(android.content.Intent.ACTION_SEND);
email.setType("plain/text");
String emailTitle = "标题";
String emailContent = "内容";
String[] emailReciver = new String[]{"1016762210@qq.com"};
email.putExtra(android.content.Intent.EXTRA_EMAIL, emailReciver);
email.putExtra(android.content.Intent.EXTRA_SUBJECT, emailTitle);
email.putExtra(android.content.Intent.EXTRA_TEXT, emailContent);
startActivity(email);
}
private void start4(){
Intent intent = new Intent(Intent.ACTION_VIEW);
String path = Environment.getExternalStorageDirectory().getPath()+ "/1.mp4";//该路径可以自定义
File file = new File(path);
Uri uri = Uri.fromFile(file);
intent.setDataAndType(uri, "video/*");
startActivity(intent);
}
private void start5(){
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, 0);
}
public static final int CROP_REQUEST = 2;
Uri bitmap;
@Override
protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
switch (requestCode) {
case VALUE_PICK_PICTURE: // 如果是直接从相册获取
bitmap = data.getData();//拿到所选图片的Uri
break;
}
}
}
private void start6(){
Intent intent = new Intent("com.android.camera.action.CROP");
intent.setDataAndType(bitmap, "image/*");
// 下面这个crop=true是设置在开启的Intent中设置显示的VIEW可裁剪
intent.putExtra("crop", "true");
intent.putExtra("scale", true);
intent.putExtra("aspectX", 1);
intent.putExtra("aspectY", 1);
// 裁剪后输出图片的尺寸大小
intent.putExtra("outputX", 250);
intent.putExtra("outputY", 250);
intent.putExtra("return-data", true);
intent.putExtra("outputFormat", Bitmap.CompressFormat.JPEG.toString());
intent.putExtra("noFaceDetection", true); // no face detection
startActivityForResult(intent, 0);
}
private void start7(){
Intent intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);
startActivityForResult(intent, 0);
}
private void start8(){
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
intent.setData(Contacts.People.CONTENT_URI);
startActivity(intent);
}
public static final int VALUE_PICK_PICTURE = 1;
private void start9() {
Intent intent = new Intent(Intent.ACTION_PICK, null);
intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
startActivityForResult(intent, VALUE_PICK_PICTURE);
}
@Override
public void onClick(View view) {
switch (view.getId()){
case R.id.bt_0:
start0();
break;
case R.id.bt_1:
start1();
break;
case R.id.bt_2:
start2();
break;
case R.id.bt_3:
start3();
break;
case R.id.bt_4:
start4();
break;
case R.id.bt_5:
start5();
break;
case R.id.bt_6:
start6();
break;
case R.id.bt_7:
start7();
break;
case R.id.bt_8:
start8();
break;
case R.id.bt_9:
start9();
break;
}
}
}