如何通過另一個按鈕的onClick更改按鈕的大小？

Question

我希望能夠點擊「SizeClicker」按鈕並更改「Clicker」按鈕的大小。我是Java和Android Studios的新手。我正在開發一個應用程序。我希望能夠將「Clicker」更改爲我需要的尺寸。如果我正在做這100％錯誤，你能幫我改變大小（寬度和高度）。

import android.app.Activity; 
import android.os.Debug; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.ViewGroup; 
import android.widget.Button; 
import android.view.View; 
import android.widget.RelativeLayout; 
import android.widget.TextView; 

public class MainActivity extends Activity { 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
} 

Button Clicker = (Button) findViewById(R.id.Clicker); 
Button Sizer = (Button) findViewById(R.id.SizeClicker); 

Sizer.setOnClickListener(new Button.OnClickListener(){ 

    @Override 
    public void onClick(View arg0) { 
     ViewGroup.LayoutParams params = Clicker.getLayoutParams(); 
     params.height++; 
     params.width++; 
     Clicker.setLayoutParams(params); 
    }}); 
} 

的XML：

<Button 
    style="?android:attr/buttonStyleSmall" 
    android:text="@string/SizeClickerText" 
    android:textColor="#FFFFFF" 
    android:textSize="20sp" 
    android:id="@+id/SizeClicker" 
    android:layout_width="40dp" 
    android:layout_height="40dp" 
    android:background="@drawable/buttonshapesize" 
    android:layout_above="@+id/Clicker" 
    android:layout_toEndOf="@+id/Clicker" /> 

    <Button 
    android:text="@string/ClickerButton" 
    android:textColor="#FFFFFF" 
    android:textSize="24sp" 
    android:id="@+id/Clicker" 
    android:layout_width="100dp" 
    android:layout_height="50dp" 
    android:background="@drawable/buttonshape" 
    android:layout_alignParentBottom="true" 
    android:layout_alignStart="@+id/ClickerDisplayText" 
    android:layout_marginBottom="50dp" 
    android:clickable="false" /> 

Answer 1

您的onClick內嘗試

button.setLayoutParams(new LinearLayout.LayoutParams(10, 100)); 

http://android-coding.blogspot.in/2011/05/resize-button-programmatically-using.html

如果你的按鈕內RelativeLayout，你應該使用RelativeLayout.LayoutParams

Programmatically change the width of the Button in android