2.仿微信--登入介面（LoginActivity）佈局介面的實現
阿新 • • 發佈：2019-02-18
1.登入介面LoginActivity.java（具體邏輯後邊實現，隨便輸入資訊點選登陸進入主介面）
/** * 登陸頁面 * */ public class LoginActivity extends Activity { private EditText et_usertel; private EditText et_password; private Button btn_login; private Button btn_qtlogin; ProgressDialog dialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_login); dialog = new ProgressDialog(LoginActivity.this); et_usertel = (EditText) findViewById(R.id.et_usertel); et_password = (EditText) findViewById(R.id.et_password); btn_login = (Button) findViewById(R.id.btn_login); btn_qtlogin = (Button) findViewById(R.id.btn_qtlogin); // 監聽多個輸入框 et_usertel.addTextChangedListener(new TextChange()); et_password.addTextChangedListener(new TextChange()); btn_login.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(LoginActivity.this, MainActivity.class)); } }); btn_qtlogin.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(LoginActivity.this, RegisterActivity.class)); } }); } // EditText監聽器 class TextChange implements TextWatcher { @Override public void afterTextChanged(Editable arg0) { } @Override public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) { } @Override public void onTextChanged(CharSequence cs, int start, int before, int count) { boolean Sign2 = et_usertel.getText().length() > 0; boolean Sign3 = et_password.getText().length() > 0; if (Sign2 & Sign3) { btn_login.setTextColor(0xFFFFFFFF); btn_login.setEnabled(true); } // 在layout檔案中，對Button的text屬性應預先設定預設值，否則剛開啟程式的時候Button是無顯示的 else { btn_login.setTextColor(0xFFD0EFC6); btn_login.setEnabled(false); } } } }
2.在AndroidManifest.xml中註冊
<activity
android:name=".LoginActivity"
android:theme="@android:style/Theme.NoTitleBar" /> 3.佈局檔案activity_login.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#ffffff" android:orientation="vertical" > <RelativeLayout android:id="@+id/title" android:layout_width="match_parent" android:layout_height="@dimen/height_top_bar" android:background="@color/common_top_bar_blue" > <ImageView android:id="@+id/iv_back" android:layout_width="40dp" android:layout_height="match_parent" android:layout_alignParentLeft="true" android:layout_centerVertical="true" android:onClick="back" android:paddingBottom="5dp" android:paddingLeft="5dp" android:paddingRight="5dp" android:paddingTop="5dp" android:scaleType="centerInside" android:src="@drawable/top_bar_back" /> <View android:id="@+id/view_temp" android:layout_width="1dp" android:layout_height="match_parent" android:layout_marginBottom="8dp" android:layout_marginTop="8dp" android:layout_toRightOf="@id/iv_back" android:background="#14191A" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:layout_toRightOf="@id/view_temp" android:text="使用手機號登入" android:textColor="#ffffff" android:textSize="18sp" /> </RelativeLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" android:padding="12dp" > <RelativeLayout android:layout_width="match_parent" android:layout_height="48dp" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:text="國家和地區" android:textColor="#353535" android:textSize="16sp" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_centerVertical="true" android:layout_marginRight="10dp" android:text="中國" android:textColor="#45c01a" android:textSize="16sp" /> <View android:layout_width="match_parent" android:layout_height="0.1dp" android:layout_alignParentBottom="true" android:background="#dbdbdb" /> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="48dp" > <EditText android:id="@+id/et_usertel" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerVertical="true" android:background="@drawable/edittext_login" android:hint="你的手機號碼" android:inputType="phone" android:paddingLeft="90dp" android:singleLine="true" android:textColorHint="#DDDDDD" android:textSize="16sp" android:textCursorDrawable="@null"/> <TextView android:layout_width="90dp" android:layout_height="wrap_content" android:layout_alignLeft="@id/et_usertel" android:layout_centerVertical="true" android:layout_marginLeft="24dp" android:text="+86" android:textColor="#353535" android:textSize="16sp" /> </RelativeLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="48dp" > <EditText android:id="@+id/et_password" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerVertical="true" android:background="@drawable/edittext_login" android:hint="填寫密碼" android:paddingLeft="90dp" android:password="true" android:singleLine="true" android:textColorHint="#DDDDDD" android:textSize="16sp" android:textCursorDrawable="@null" /> <TextView android:id="@+id/tv_password" android:layout_width="90dp" android:layout_height="wrap_content" android:layout_alignLeft="@id/et_password" android:layout_centerVertical="true" android:layout_marginLeft="10dp" android:text="密碼" android:textColor="#353535" android:textSize="16sp" /> </RelativeLayout> <Button android:id="@+id/btn_login" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="24dp" android:background="@drawable/btn_register_bg" android:enabled="false" android:paddingBottom="7dp" android:paddingTop="7dp" android:text="登入" android:textColor="@android:color/white" android:textSize="18sp" /> <TextView android:id="@+id/tv_wenti" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="right" android:layout_marginTop="10dp" android:text="登入遇到問題？" android:textColor="#576B95" android:textSize="14sp" /> </LinearLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="match_parent" > <Button android:layout_margin="33dp" android:padding="8dp" android:background="@drawable/btn_qtlogin_bg" android:id="@+id/btn_qtlogin" android:layout_width="wrap_content" android:layout_height="33dp" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginTop="10dp" android:text="註冊" android:textColor="#353535" android:textSize="15sp" /> </RelativeLayout> </LinearLayout>
4.佈局檔案裡涉及到的資原始檔
dimens.xml檔案
<dimen name="height_top_bar">48dp</dimen>color.xml
<color name="common_top_bar_blue">#22292c</color>drawable目錄下：
top_bar_back.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_pressed="true" android:drawable="@drawable/ac1" /> <item android:state_selected="true" android:drawable="@drawable/ac1" /> <item android:drawable="@drawable/ac0" /> </selector>
edittext_login.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:drawable="@drawable/wo" android:state_focused="true"/>
<item android:drawable="@drawable/wp"/>
</selector>btn_register_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/yuanjiao_3" android:state_pressed="true"/>
<item android:drawable="@drawable/yuanjiao_1" android:state_enabled="false"/>
<item android:drawable="@drawable/yuanjiao_2" android:state_enabled="true"/>
<item android:drawable="@drawable/yuanjiao_1"/>
</selector>btn_qtlogin_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="@drawable/yuanjiao_4" android:state_pressed="true"/>
<item android:drawable="@drawable/yuanjiao_5"/>
</selector><?xml version="1.0" encoding="utf-8"?>
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/ac1" />
<item android:state_selected="true" android:drawable="@drawable/ac1" />
<item android:drawable="@drawable/ac0" />
</selector><?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="#45C01A" />
<corners
android:bottomLeftRadius="1dp"
android:bottomRightRadius="1dp"
android:topLeftRadius="1dp"
android:topRightRadius="1dp" />
</shape>yuanjiao_3.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="#027A0B" />
<corners
android:bottomLeftRadius="1dp"
android:bottomRightRadius="1dp"
android:topLeftRadius="1dp"
android:topRightRadius="1dp" />
</shape>yuanjiao_4.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="#F1F1F1" />
<corners
android:bottomLeftRadius="1dp"
android:bottomRightRadius="1dp"
android:topLeftRadius="1dp"
android:topRightRadius="1dp" />
</shape>yuanjiao_5.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<solid android:color="#F0F0F0" />
<corners
android:bottomLeftRadius="1dp"
android:bottomRightRadius="1dp"
android:topLeftRadius="1dp"
android:topRightRadius="1dp" />
</shape>5.最後，在SplashActivity.java中修改 在onStart()方法中修改
//進入登入頁面
startActivity(new Intent(SplashActivity.this,LoginActivity.class));