Content
- 从一个 Activity 中打开另一个 Activity,并返回获得结果
界面图
第一个Activity (SearchContact)
- activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity"
android:padding="30dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_name" />
<EditText
android:id="@+id/ma_et_input"
android:hint="@string/et_input"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:importantForAutofill="no"
android:inputType="text" />
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/bt_search"
android:onClick="search"/>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<TextView
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_phoneNumber"/>
<TextView
android:id="@+id/ma_tv_phoneNumber"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_empty"/>
</LinearLayout>
</LinearLayout>
- MainActivity.java
package com.example.searchcontact;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
public class MainActivity extends AppCompatActivity {
public static final String EXTRA_MESSAGE = "com.example.searchContact.MESSAGE";
private static final int PICK_CONTACT_REQUEST = 123;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Intent intent = getIntent();
// String phoneNumber = intent.getStringExtra(PickContact.PICK_MESSAGE);
}
public void search(View view) {
Intent intent = new Intent("searchPhoneNumber");
// intent.setAction("searchPhoneNumber");
EditText editText = (EditText)findViewById(R.id.ma_et_input);
String name = editText.getText().toString();
intent.putExtra(EXTRA_MESSAGE, name);
if(intent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(intent, PICK_CONTACT_REQUEST);
}
}
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if(resultCode == RESULT_OK && requestCode == PICK_CONTACT_REQUEST) {
// Cursor cursor = getContentResolver().query(data.getData(),
// new String[] {ContactsContract.Contacts.DISPLAY_NAME}, null, null, null);
// if(cursor.moveToFirst()) {
// int columnIndex = cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
// String name = cursor.getString(columnIndex);
// }
TextView textView = (TextView)findViewById(R.id.ma_tv_phoneNumber);
textView.setText(data.getDataString());
}
}
}
第二个Activity (PickContact)
- activity_pick_contact.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".PickContact"
android:padding="30dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_searchingName"/>
<TextView
android:id="@+id/pc_tv_empty"
android:text="@string/tv_empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_inputPhoneNumber" />
<EditText
android:id="@+id/pc_et_inputPhoneNumber"
android:hint="@string/et_input"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:importantForAutofill="no"
android:inputType="phone" />
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/bt_return"
android:onClick="returnTOMain"/>
</LinearLayout>
- PickContact.java
package com.example.searchcontact;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import org.w3c.dom.Text;
public class PickContact extends AppCompatActivity {
// public static final String PICK_MESSAGE = "com.example.pickContact.MESSAGE";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pick_contact);
Intent intent = getIntent();
String name = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
TextView textView = (TextView)findViewById(R.id.pc_tv_empty);
textView.setText(name);
}
public void returnTOMain(View view) {
// Intent intent = new Intent(this, MainActivity.class);
EditText editText = (EditText)findViewById(R.id.pc_et_inputPhoneNumber);
String phoneNumber = editText.getText().toString();
// intent.putExtra(PICK_MESSAGE, phoneNumber);
// startActivity(intent);
Intent result = new Intent("com.example.RESULT_ACTION", Uri.parse(phoneNumber));
// result.putExtra(PICK_MESSAGE, phoneNumber);
setResult(Activity.RESULT_OK, result);
finish();
}
}
第三个Activity (AnotherPick) 和第二个一样
- activity_another_pick.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".AnotherPick"
android:padding="30dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_searchingName"/>
<TextView
android:id="@+id/ap_tv_empty"
android:text="@string/tv_empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_marginEnd="10dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/tv_inputPhoneNumber" />
<EditText
android:id="@+id/ap_et_inputPhoneNumber"
android:hint="@string/et_input"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:importantForAutofill="no"
android:inputType="phone" />
</LinearLayout>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/bt_return"
android:onClick="returnTOMain"/>
</LinearLayout>
- AnotherPick.java
package com.example.searchcontact;
import androidx.appcompat.app.AppCompatActivity;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
public class AnotherPick extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_another_pick);
Intent intent = getIntent();
String name = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
TextView textView = (TextView)findViewById(R.id.ap_tv_empty);
textView.setText(name);
}
public void returnTOMain(View view) {
EditText editText = (EditText)findViewById(R.id.ap_et_inputPhoneNumber);
String phoneNumber = editText.getText().toString();
Intent result = new Intent("com.example.RESULT_ACTION", Uri.parse(phoneNumber));
setResult(Activity.RESULT_OK, result);
finish();
}
}
其他
- AndroidManifest.xml 清单
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.searchcontact">
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".AnotherPick" android:label="AnotherPick">
<intent-filter>
<action android:name="searchPhoneNumber" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name=".PickContact" android:label="PickContact">
<intent-filter>
<action android:name="searchPhoneNumber" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity android:name=".MainActivity" android:label="@string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
- strings.xml
<resources>
<string name="app_name">SearchContact</string>
<string name="tv_name">姓名:</string>
<string name="bt_search">查询</string>
<string name="tv_phoneNumber">电话号码:</string>
<string name="et_input">请输入</string>
<string name="tv_searchingName">您要查询的姓名</string>
<string name="tv_inputPhoneNumber">请输入电话号码</string>
<string name="bt_return">返回</string>
<string name="tv_empty">空</string>
</resources>
其他的没动.
End.