Android成长之路-编码实现软件界面

 

实现一个登陆界面：

相对布局：

package cn.csdn.codeui;

import android.app.Activity;

import android.os.Bundle;

import android.view.ViewGroup.LayoutParams;

import android.widget.Button;

import android.widget.EditText;

import android.widget.RelativeLayout;

import android.widget.TextView;

public class LoginRelativeActivity extends Activity {

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

initUI();

}

private void initUI() {

RelativeLayout rlayout = new RelativeLayout(this);

int id = 100;

/**添加一个TextView*/

TextView textView1 = new TextView(this);

/**android:id=""*/

textView1.setId(id);

/**android:text="用户名："*/

textView1.setText("用户名：");

/**android:layout_width="wrap_content"

           android:layout_height="wrap_content"*/

RelativeLayout.LayoutParams textParams1 = new RelativeLayout.LayoutParams(

LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

/**android:layout_alignParentLeft="true"*/

textParams1.addRule(RelativeLayout.ALIGN_PARENT_LEFT);

rlayout.addView(textView1, textParams1);

//////////

int id1 = 200;

EditText userEdit = new EditText(this);

userEdit.setId(id1);

RelativeLayout.LayoutParams EditParams1 = new RelativeLayout.LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

/**android:layout_toRightOf="id的值"*/

EditParams1.addRule(RelativeLayout.RIGHT_OF, id);

rlayout.addView(userEdit, EditParams1);

//////////

int Id = 300;

TextView textView2 = new TextView(this);

textView2.setId(Id);

textView2.setText("密码 ：");

RelativeLayout.LayoutParams TextParams2 = new RelativeLayout.LayoutParams(

LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

TextParams2.addRule(RelativeLayout.BELOW, id1);

rlayout.addView(textView2, TextParams2);

//////////

int Id1 = 400;

EditText passEdit = new EditText(this);

passEdit.setId(Id1);

RelativeLayout.LayoutParams EditParams2 = new RelativeLayout.LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

EditParams2.addRule(RelativeLayout.BELOW, id1);

EditParams2.addRule(RelativeLayout.RIGHT_OF, Id);

rlayout.addView(passEdit, EditParams2);

//////////

int Id2 = 500;

Button login = new Button(this);

login.setId(Id2);

login.setText("登陆");

RelativeLayout.LayoutParams loginParams = new RelativeLayout.LayoutParams(

LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

loginParams.addRule(RelativeLayout.BELOW, Id1);

loginParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

rlayout.addView(login, loginParams);

//////////

Button insert = new Button(this);

insert.setText("注册");

RelativeLayout.LayoutParams insertParams = new RelativeLayout.LayoutParams(

LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);

insertParams.addRule(RelativeLayout.BELOW, Id1);

insertParams.addRule(RelativeLayout.LEFT_OF, Id2);

rlayout.addView(insert, insertParams);

setContentView(rlayout);

}

}

 

效果图：

表格布局：

package cn.csdn.codeui;

import android.app.Activity;

import android.os.Bundle;

import android.view.ViewGroup.LayoutParams;

import android.widget.Button;

import android.widget.EditText;

import android.widget.TableLayout;

import android.widget.TableRow;

import android.widget.TextView;

public class LoginTableActivity extends Activity {

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

initUI();

}

private void initUI() {

///表格布局

TableLayout tlayout = new TableLayout(this);

tlayout.setColumnStretchable(1, true);

///行

TableRow tableRow1 = new TableRow(this);

TextView textView1 = new TextView(this);

textView1.setText("用户名：");

tableRow1.addView(textView1);

EditText userEdit = new EditText(this);

tableRow1.addView(userEdit);

tlayout.addView(tableRow1);

TableRow tableRow2 = new TableRow(this);

TextView textView2 = new TextView(this);

textView2.setText("密码：");

tableRow2.addView(textView2);

EditText passEdit = new EditText(this);

tableRow2.addView(passEdit);

tlayout.addView(tableRow2);

TableRow tableRow3 = new TableRow(this);

Button btn0 = new Button(this);

btn0.setText("登录");

tableRow3.addView(btn0);

Button btn1 = new Button(this);

btn1.setText("注册");

tableRow3.addView(btn1);

tlayout.addView(tableRow3);

setContentView(tlayout);

}

}

 

效果图：

线性布局：

package cn.csdn.codeui;

import android.app.Activity;

import android.os.Bundle;

import android.view.ViewGroup.LayoutParams;

import android.widget.Button;

import android.widget.EditText;

import android.widget.LinearLayout;

import android.widget.TextView;

public class LoginLinearActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

init();

}

private void init() {

//线性布局

LinearLayout linearLayout = new LinearLayout(this);

/**android:orientation="vertical"*/

linearLayout.setOrientation(LinearLayout.VERTICAL);

LayoutParams layoutParams = new LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.FILL_PARENT);

//////////

TextView userText = new TextView(this);

userText.setText("用户名：");

LayoutParams userTextParams = new LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

linearLayout.addView(userText, userTextParams);

        //////////

EditText userEdit = new EditText(this);

LayoutParams userEditParams = new LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

linearLayout.addView(userEdit, userEditParams);

        //////////

TextView passText = new TextView(this);

passText.setText("密码：");

LayoutParams passTextParams = new LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

linearLayout.addView(passText, passTextParams);

        //////////

EditText passEdit = new EditText(this);

LayoutParams passEditParams = new LayoutParams(

LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT);

linearLayout.addView(passEdit, passEditParams);

        //////////

Button login = new Button(this);

login.setText("登陆");

LayoutParams loginParams = new LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT);

linearLayout.addView(login, loginParams);

        //////////

Button insert = new Button(this);

insert.setText("注册");

LayoutParams insertParams = new LayoutParams(LayoutParams.FILL_PARENT,

LayoutParams.WRAP_CONTENT);

linearLayout.addView(insert, insertParams);

setContentView(linearLayout, layoutParams);

}

}

 

效果图：